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Tag: brain-tumors

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Scatter Radiation is Unavoidable, Physician Protection is Not

Scatter Radiation is Unavoidable, Physician Protection is Not

Posted on November 27, 2017 by in Products, Safety with no comments

Protecting Hospital Staff During Fluoro-Guided Procedures

Radiation Therapy is a powerful tool in medicine, especially when used to treat cancer. Radiation works by killing and slowing the growth of cancer cells – but it can also damage healthy cells in the process, which can increase the risk of developing cancer in the future.

In 2017, approximately 80,000 new cases of brain tumors are expected to be diagnosed, with roughly 26,000 of those being malignant cases.^1 This depicts brain and other central nervous system cancer as the 10th leading cause of death in both men and women, and an estimated 16,700 individuals are expected to die from primary brain cancer this year. ^2

 

RADPAD® Radiation protection Products

While healthcare providers are diligent in their efforts to keep patients safe from scatter radiation, it is also important for providers to consider their safety when performing these procedures. Scatter radiation is secondary radiation that deflects from an object, most commonly the patient, during procedures, and can affect the healthcare provider’s brain in the process.

RADPAD® from Worldwide Innovations & Technologies is a full line of radiation protection products that are dedicated to protecting hospital staff during fluoro-guided procedures.

The No Brainer

The No Brainer®

The RADPAD® No Brainer® is an attenuation material-lined scrub cap worn by cath lab personnel that protects the brain from scatter radiation during fluoro-guided procedures.

 

x-ray-protection-thyroid-collar

Thyroid Collar

 

The RADPAD® is also available as a thyroid shield and a full-length protection sleeve to cover the neck and arms of the physician during these procedures.

 

RADPAD-table-skirt

Table Skirt with Anchor

The RADPAD® Table Skirt anchors to the table in the cath lab to block scatter radiation that flows from below the table, and the RADPAD® Specialty Shields create a shade zone where the physician can work from.

To learn more about how you can protect yourself and your patients with the RADPAD®, contact us:

WORLDWIDE INNOVATIONS & TECHNOLOGIES, INC. (WIT)
14740 W 101st Terrace
Lenexa, KS 66215
Phone: 913-648-3730 or 1-877-7RADPAD (1-877-772-3723)
Fax: 913-648-0131

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1 http://www.abta.org/about-us/news/brain-tumor-statistics/?referrer=https://www.google.com/

2 http://www.cancer.net/cancer-types/brain-tumor/statistics

Studies Support the Need for Radiation Protection for the Brain

Studies Support the Need for Radiation Protection for the Brain

Posted on May 12, 2017 by in Safety with no comments

Here we present the first of two studies regarding Rad Techs and brain cancer.  This study (3/25/2016) showed a 2.5 times greater incidence of brain cancer due to radiation exposure in the fluoro labs than to those RTs working outside the interventional suite. The study recommended ALARA and more work in this area.

This study and can be used to support the need for radiation protection for the brain.

See the original article publication here.
Read the full article below:
What’s the radiation risk to RTs from fluoro studies?

By Brian Casey, AuntMinnie.com staff writer

April 7, 2017 — Are radiologic technologists (RTs) who assist with interventional studies at higher risk of death from brain cancer? Maybe, but it’s not clear that radiation exposure is the reason why, according to a new study published March 28 in the American Journal of Roentgenology.

Researchers from a variety of institutions studied brain cancer death rates in a group of 110,000 radiologic technologists who participated in a longitudinal survey starting in 1981. While RTs who were involved in fluoroscopy had slightly higher brain cancer death rates than those who weren’t, the researchers found no relationship between the amount of radiation they were exposed to on the job and their risk of brain cancer death.

This led Cari Kitahara, PhD, of the U.S. National Cancer Institute, and colleagues to conclude that there may be other factors behind why interventional RTs have higher brain cancer rates. These could include exposure to developing chemicals used to process film or drugs and iodinated contrast agents used during fluoroscopy-guided procedures (AJR, March 28, 2017).

On-the-job exposure

A number of studies in recent years have examined the link between radiation exposure and cancer death rates in radiologic technologists, particularly interventional procedures due to their higher radiation levels compared to static studies. Researchers have focused on brain cancer mortality because interventional technologists wear lead shielding that protects other parts of the body from radiation, while the head is for the most part unprotected.

A March 2016 study by Rajaraman et al found that interventional technologists had a mortality risk from malignant intracranial neoplasms that was 2.5 times higher compared to RTs who never assisted with fluoroscopy procedures. The current study used the same cohort as the Rajaraman study, but it was designed to assess whether there was a relationship between brain cancer mortality rates and the amount of radiation technologists were exposed to during their work histories.

Kitahara and colleagues analyzed data from the U.S. Radiologic Technologists Study, which began in the 1980s with a cohort of 146,022 technologists who were working in the field at the time, some having started their careers as early as 1926. The technologists received four surveys between 1983 and 2014 that asked various questions regarding work history and practices, medical history, and other issues.

Kitahara’s group used data from technologists who responded to the first or second cohort surveys (or both); this consisted of 83,655 female and 26,642 male technologists. To be included in the study, estimates of annual and cumulative radiation doses to the brain must have been performed for the individuals.

Dose estimates were derived from badge measurements for 72% of the study cohort members between 1960 and 1997, as well as detailed work histories of procedures and protection practices from the first three cohort surveys. The researchers used historical data and dose estimates for the years before 1960 when dosimetry badges weren’t yet available.

Kitahara and colleagues then tracked various demographic characteristics, lifestyle factors, and medical and work histories, including a history of working with fluoroscopy-guided imaging procedures. Finally, they tracked the number of cases of brain cancer that occurred in the subjects.

Over a median follow-up period of 26.7 years, 193 technologists who assisted with fluoroscopically guided procedures died of malignant brain tumors, the researchers found. Individuals in the group had a cumulative mean absorbed brain dose of 12 mGy.

Like Rajaraman et al, Kitahara’s group found a higher relative risk of brain cancer mortality among technologists who assisted with fluoroscopy compared to those who didn’t. But the relationship was not as strong: The new study found that those who were exposed to fluoroscopy procedures had a relative risk of brain cancer mortality of 1.7 compared to technologists who didn’t do fluoroscopy. This compared to a risk of 2.5 in the Rajaraman research. (The Kitahara study followed technologists for an additional four years compared to the previous research.)

Their next question was whether the technologists who received a higher radiation dose experienced a higher rate of brain cancer mortality. The answer was no: Kitahara and colleagues found an excess relative risk for brain cancer mortality of 0.1 per 100 mGy of exposure, just slightly above the rating of 0 that would indicate no association.

“We found no evidence of a dose-response association between cumulative protracted occupational radiation and malignant intracranial tumor mortality,” they wrote.

The researchers noted that the statistical power of their study may have been too limited to identify a positive relationship between radiation dose and mortality, given the relatively small number of cancer deaths and the low range of estimated radiation dose.

But they also postulated that the higher rate of brain tumor deaths found in both the Rajaraman and Kitahara studies could be due to factors other than radiation in the work environment of technologists who assist with interventional radiology

For example, technologists assisting with fluoroscopy-guided procedures continued to perform photographic subtraction angiography in darkrooms through the 1980s, whereas technologists working with static radiographs stopped working with open film tanks in the 1960s, they noted. Film-processing chemicals have been associated with a wide range of health maladies.

Fluoroscopy technologists are also exposed to a variety of drugs and iodinated contrast agents at a higher rate than other RTs, although the authors pointed out that a connection between such chemicals and brain tumor development has not yet been established.

In the end, Kitahara and colleagues noted that their findings are in line with other studies on exposure to low and moderate doses of radiation, which have not established a link between exposure levels and brain cancer mortality in adults.

They advised additional studies in the future, such as examining the association between protracted radiation exposure and benign brain tumor incidence in the same cohort.


CONTACT US

Send inquiries to info@radpad.com for a free No Brainer™ sample. The No Brainer™ blocks up to 95% of radiation exposure to the brain. Lightweight, adjustable protection for all O.R. suite and fluoro lab personnel during interventional procedures.

WORLDWIDE INNOVATIONS & TECHNOLOGIES, INC. (WIT)
14740 W 101st Terrace
Lenexa, KS 66215
Phone: 913-648-3730
or 1-877-7RADPAD (1-877-772-3723)

Fax: 913-648-0131

Email: info@radpad.com

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RADPAD Glossary of Some Common Interventional Techniques

RADPAD Glossary of Some Common Interventional Techniques

Posted on April 21, 2017 by in Uncategorized with no comments

5511-used-in-abdominal-procedure-thumb

Radiology is the branch of medical science that has seen a major boost in the past few years. With more and more doctors learning interventional techniques for radiology, it has become important that you get familiar with some of the glossary terms related to this technology.

Central Venous Access

This is one method that is used to insert nutrients or blood in the blood vessels of the patient. The needle is inserted just beneath the skin and also used to provide medication of any kind to the patients.

Bleeding internally

Unlike in the past, interventional radiologists can easily pinpoint the area of internal bleeding with angioplasty. This has helped a lot in the operations that need to be performed after a person has sustained a severe accident. When the point of bleeding is discovered, the required blood clotting substance, gel, foam or tiny coils can be inserted with the help of a thin catheter that stop the bleeding.

Balloon Angioplasty

One of the most effective methods to open up clogged arteries in the legs, brains, arms, kidneys or anywhere in the body is balloon angioplasty. A very small balloon is inserted into the vessel and inflated to open it.

Biliary Drainage and Stenting

Excess bile in the liver can cause problems; the biliary drainage method is used to extract it. A stent is a small mesh tube that is used to open up blocked ducts and allow the bile to drain out.

Angiography

This is one of the superior X-ray exams that help in seeking out blockages and other blood vessel problems in the body. A catheter and a contrast agent (X-ray dye) are used to ensure the visibility of the artery.

Arteriovenous Malformations (AVM)

One of the biggest threats that can lead to internal bleeding and take lives is blood vessel abnormality. It can occur anywhere in the body. For this reason, arteriovenous malformations need to be treated properly. Interventional radiologists can treat this problem by inserting a catheter into the site of the bleeding.

Embolization

This is the process through which the clotting agent is delivered directly to the bleeding area in cases like an aneurysm or a fibroid tumor in the uterus. The clotting agents are the coils, plastic particles, gels, foams, and other materials.

High Blood Pressure

The problem of renal hypertension occurs due to the narrowing of the arteries in the kidneys. This problem leads to an increase in blood pressure. It can be easily treated with angioplasty.

Gastrostomy Tube

This is the tube that is inserted into the stomach of patients who are unable eat food usings their mouths.

Chemoembolization

Cancer is becoming curable, and the cancers of the endocrine system and the liver can be treated with this method. In this method of Chemoembolization, cancer-fighting agents are directly delivered to the site of the tumor of the cancer.

Needle Biopsy 

This is a great alternative to a surgical biopsy. The needle biopsy is used as a diagnostic test for breast, lung and other cancers.


Worldwide Innovations & Technologies, Inc. 

14740 W 101st Terrace
Lenexa, KS 66215
Phone: 913-648-3730
or 1-877-7RADPAD (1-877-772-3723)
Fax: 913-648-0131
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RADPAD® Attends SIR 2017 Annual Scientific Meeting in Washington DC

RADPAD® Attends SIR 2017 Annual Scientific Meeting in Washington DC

Posted on March 24, 2017 by in Uncategorized with no comments

The Society of Interventional Radiology

SIR is a national organization of physicians, scientists and allied health professionals dedicated to improving public health through disease management and minimally invasive, image-guided therapeutic interventions.

SIRBanner2017-1


RADPAD at SIR 2017 

RADPAD-radiation-protectionD2A089EF-1A2C-41B3-B37E-930F888F1E92

 

Goals of the SIR 2017 Annual Scientific Meeting

It is SIR’s goal to promote the high-quality practice of interventional radiology through this and other educational programs. Meeting attendees will receive the latest information in basic and clinical research; experience techniques and technologies utilized by interventional radiologists around the world; see the latest equipment used in IR; and discuss social, political and economic issues important to the IR community.

 

SIR 2017 ANNUAL SCIENTIFIC MEETING OBJECTIVES

At the end of this meeting the learner should be able to:

1. Demonstrate the high-quality practice of interventional radiology in a team environment

2. Illustrate the latest information regarding basic and clinical research in diseases, including techniques and technologies integral to the practice of interventional radiology

3. Evaluate the latest equipment developed for interventional radiology procedures

4. Discuss societal, political and economic issues of importance to the interventional radiology community

 

WORLDWIDE INNOVATIONS & TECHNOLOGIES, INC. (WIT)
14740 W 101st Terrace
Lenexa, KS 66215
Phone: 913-648-3730
or 1-877-7RADPAD (1-877-772-3723)Fax: 913-648-0131

Email: info@radpad.com

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WIT Wins Business Award: 25 Under 25®

Posted on February 10, 2017 by in Other Stories with no comments

Worldwide Innovations & Technologies, Inc. Has Won the 25 Under 25® Award

2016AwardsLookingDown_25U25

“Small businesses are a powerful, but often overlooked force in Kansas City,” said Kelly Scanlon, CEO of Thinking Bigger Business Media and the creator of 25 Under 25®.

“Together, these companies employ thousands upon thousands of people, deliver innovative products and services, and help support our government, schools, nonprofits and other public resources. Of course, most of our winners are too humble and too busy to brag about their contributions. But it’s a story that needs to be told. The 25 Under 25® Awards are proud to celebrate the important service of small businesses.”

 

About the 25 Under 25® Awards

As part of its 10-year anniversary celebration in 2002, Thinking Bigger Business Media Inc. launched the annual 25 Under 25® Awards to recognize 25 outstanding Kansas City businesses with under 25 employees.

Until the 25 Under 25® Awards, no formal recognition program existed in the Kansas City area that specifically targeted businesses with fewer than 25 employees. Yet this segment of business comprises the largest number of companies both locally and nationally, with roughly 83 percent of Kansas City area and 86 percent of businesses nationwide employing 19 or fewer employees.

With the establishment of the 25 Under 25® Awards program, small businesses are being recognized for the significant role they play in the Kansas City economy. The 25 Under 25® Awards program is not just about honoring individual businesses—it’s also about opening the public’s eyes to the economic, social and community impact of small businesses.

 

Honorees

December 7, 2016

Thinking Bigger Business Media is proud to announce the honorees of the 16th annual 25 Under 25® Awards—a group that represents the best of Kansas City’s small business community.

The awards are presented to 25 local businesses with fewer than 25 employees. An independent panel of judges consisting of area business leaders chooses the winning companies. Nearly 1,500 nominations were submitted. This year’s honorees include:

 

More info on the awards and the award reception here: https://ithinkbigger.com/events/25-under-25/

WORLDWIDE INNOVATIONS & TECHNOLOGIES, INC. (WIT)
14740 W 101st Terrace
Lenexa, KS 66215
Phone: 913-648-3730
or 1-877-7RADPAD (1-877-772-3723)

Fax: 913-648-0131

Email: info@radpad.com

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alternate access for CTOs by RADPAD
RADPAD CLI Perspectives: Alternative Access for CTOs in CLI

RADPAD CLI Perspectives: Alternative Access for CTOs in CLI

Posted on September 12, 2016 by in Procedures with no comments

Last year, Cath Lab Digest published an interview covering alternative access for chronic total occlusions in critical limb ischemia. J.A. Mustapha, MD, interviewed Andrej Schmidt, MD, Department of Angiology, Leipzig Heart Center, Leipzig, Germany. 

Read the full article below or click the link for the original publicaiton:

http://www.cathlabdigest.com/article/CLI-PERSPECTIVES-Alternative-Access-CTOs-CLI

 


CLI PERSPECTIVES: Alternative Access for CTOs in CLI

Author(s):

CLI Perspectives is headed by section editor J.A. Mustapha, MD, 

Metro Health Hospital, Wyoming, Michigan. 

 

Topics:
Access
Critical limb ischemia
Chronic total occlusions (CTO)
Issue Number:
Volume 23 – Issue 2 – February, 2015

 

 

 

J. Mustapha: What is your preferred access method for crossing complex superficial femoral artery (SFA) CTOs, with the exception of ostial SFA disease?

A. Schmidt: Most SFA CTO crossing is performed via ipsilateral antegrade approach.

 

 

J. Mustapha: Why do you prefer an ipsilateral antegrade approach?

A. Schmidt: For multiple beneficial reasons, including shortening the distance from the access site to the CTO, enhancement of pushability, and much better wire and catheter torque.

 

J. Mustapha: Do you ever perform a contralateral access approach for SFA CTOs?

 

A. Schmidt: Yes, mostly in patients who are not good candidates for antegrade access such as obese patients, those with proximal disease, ostial SFA disease, or CTOs. Mostly, I prefer antegrade access for SFA CTOs.

 

J. Mustapha: Many of us have seen you perform live cases and have witnessed your excellent techniques in retrograde popliteal and SFA access in complex CTO crossing. Why do you access these segments?

A. Schmidt: We access distal to the CTO cap of the SFA or popliteal CTO only when we fail to cross from antegrade approach first. The reason we access close to the CTO is similar to the reasoning of the antegrade access, close to the CTO cap, which in turns helps with retrograde pushability and torqueability.

J. Mustapha: What advice would you give practitioners who would like to perform similar retrograde access in the SFA/popliteal?

A. Schmidt: Proceed with caution, as this should only be attempted after an antegrade approach fails.  Be sure to have a balloon across the occluded target lesion and the guidewire across the distal access before taking the access catheter out, so that in case a problem (dissection, occlusion) occurs at the distal entrance, balloon angioplasty can be done to fix it. Hemostasis is principally done by external compression.

 

 

J. Mustapha: What is the average time of your balloon inflation?

A. Schmidt: The time depends on the size of the access catheter or the sheath used. Most of the time, we use the smallest catheter possible, .018-inch to .035-inch.  Therefore, we perform a three-minute balloon inflation followed by an angiogram.

 

J. Mustapha: Is this the same for a stick in a stent vs no stent?

A. Schmidt: Yes.

 

J. Mustapha: Do you worry about harming the stent after getting access in it?

A. Schmidt: No. So far, in our experience, we have not had any issues with stents in these situations. Keep in mind, we only get an access in the stent in extreme cases and place the smallest catheter possible.

J. Mustapha: Moving to retrograde tibial access, which access method do you use to enter the artery, angiogram-guided or ultrasound-guided?

A. Schmidt: We use angiogram-guided access.

 

J. Mustapha: Which is your preferred tibial artery for retrograde access and which part of the artery do you like to enter?

A. Schmidt: My preferred artery is the anterior tibial artery and I prefer to enter it proximally.

 

J. Mustapha: Why proximal versus distal?

A. Schmidt: Proximally, because the vessel diameter is larger and accommodates a 4 French sheath if needed.

 

J. Mustapha: How do you get the access?

A. Schmidt: First we position the foot supine and support it with a rolled-up towel, then perform an angiogram in left oblique 30° view, and enter the needle thru the skin into the artery. If no blood returns, we perform an oblique view with repeat angiogram which helps show the tip of the needle and artery.

 

J. Mustapha: How do you obtain hemostasis after the proximal tibial access?

A. Schmidt: Most of the time, we use an external blood pressure cuff.  Occasionally, we use an intra-arterial balloon.

 

J. Mustapha: If needed, what are your tips and tricks for getting distal tibial access?

A. Schmidt: Starting with the dorsalis pedis access, foot positioning is important. First we position the foot supine and support it with a rolled-up towel, then the C-arm is positioned at about 15° ipsilateral and 10° cranial. We then use the quick access needle holder, followed with an angiogram. Also, we can puncture and perform contrast injection simultaneously, as needed.

 

J. Mustapha: Do you recommend road mapping for tibial access?

A. Schmidt: No, side movements of the artery due to puncture needles are not noticed, which may lead to accidental venous access and failed attempts. Also, I don’t recommend coming in from a lateral approach.

 

J. Mustapha: How do you know your needle is in line with the artery?

A. Schmidt: After angiogram is done, make the needle form one line with the artery (Figure 1A-B).

 

J. Mustapha: What do you do in the setting of no blood return?

A. Schmidt: Obtain oblique orthogonal views at 55-65°, load the guidewire into the needle, and perform contrast injection via the proximal sheath and pull back very slowly. Keep testing if the guidewire makes it through. Another method is to pull back slowly and inject contrast from the needle holder until you see contrast in the artery, then advance the guidewire (Figure 2A-G).

 

J. Mustapha: Any tips on how to get peroneal access?

A. Schmidt: Start with an anterior approach. Place the C-arm at ipsilateral LAO 30° (Figure 3A), perform antegrade angiogram, and position the needle in line with the artery.  If no success, then move the C-arm to right anterior oblique (RAO) 70° (Figure 3B) and repeat angiogram. Redirect the needle toward the artery, puncturing the peroneal artery through the membrana interossea.

 

J. Mustapha: Which puncture site is safer?

A. Schmidt: The distal tibial access approach is safer, as it is not associated with compartment syndrome.

 

J. Mustapha: What needles to you use for proximal and distal tibial access?

A. Schmidt: For proximal anterior tibial, posterior tibial, and peroneal access, we use a 7cm, 21g needle. For distal tibials, we use a 4cm, 21g needle.

 

J. Mustapha: Please advise what NOT to do in infrapopliteal retrograde access.

A. Schmidt: One should not access communication arteries, especially those off of the peroneal artery, as shown in Figure 4.

 

J. Mustapha: How do you minimize radiation exposure?

A. Schmidt: My angiographical approach to retrograde pedal and tibial puncture is quick and precise, minimizing radiation exposure. I attribute this to experience and the right equipment (Figure 5A). I wear a ring dosimeter (Figure 5B) to measure my exposure.

Disclosure: Dr. Mustapha reports he is a consultant to Bard Peripheral Vascular, Covidien, Cordis, CSI, Spectranetics, and Boston Scientific. Dr. Schmidt reports occasional consulting for Bard and Medtronic.

Dr. Andrej Schmidt and Dr. J.A. Mustapha can be contacted at jihad.mustapha@metrogr.org

 

WORLDWIDE INNOVATIONS & TECHNOLOGIES, INC. (WIT)

 

14740 W 101st Terrace
Lenexa, KS 66215
Phone: 913-648-3730
or 1-877-7RADPAD (1-877-772-3723)
Fax: 913-648-0131
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Mounting Evidence That Cath Lab Work Has Radiation-Related Health Effects

Mounting Evidence That Cath Lab Work Has Radiation-Related Health Effects

Posted on September 2, 2016 by in Safety with no comments

A research study was conducted in which 466 scatter radiation exposed hospital staff members were evaluated based on work-related and lifestyle information, current medications and health status. These staff members included interventional cardiologists, electrophysiologists, nurses and technicians, half of which had been working for over ten years. The results of this study concluded almost 3% of the interventional cardiology staff had a history with cancer, compared to less than 1% of unexposed comparison group. Along with that, 8% of lab workers experienced skin lesions, 30% had orthopedic illness and 5% had cataracts. These issues have all been associated with scatter radiation exposure.

McKeown, LA. “Survey Adds to Mounting Evidence That Cath Lab Work Has Radiation-Related Health Effects.”tctmd: Cardiovascular Research Foundation, 13 Apr. 2016. Web. 26 May 2016

See the original article here: http://www.tctmd.com/show.aspx?id=134783

Read the full text below:

 

Survey Adds To Mounting Evidence That Cath Lab Work Has Radiation-Related Health Effects

By L.A. McKeown
Wednesday, April 13, 2016

 

Interventional cardiologists and other personnel who work in environments with fluoroscopy-guided procedures appear to have more health problems than their colleagues in the same field who are not exposed to radiation, a survey suggests. The health problems range from eye, skin, and orthopedic problems to mental health issues, and cancers.

Another View. Survey Adds To Mounting Evidence That Cath Lab Work Has Radiation-Related Health Effects

Researchers led by Maria Grazia Andreassi, MSc, PhD (CNR Institute of Clinical Physiology, Pisa, Italy), say “every effort should be made to raise the radiation awareness in the professional communities of interventional cardiologists and cardiac electrophysiologists, promoting justification of the examination, optimization of the dose, and maximal protection of the radiation workers.”

They surveyed 466 physicians and other staff members with an average of 10 years of experience working in interventional cardiology or electrophysiology laboratories as well as 280 individuals working in the cardiology field but having no exposure, including physicians, researchers, nurses, and administrative staff. All completed a questionnaire about their present and past medical history, medication use, duration of work, and frequency of cigarette and alcohol use. An occupational radiological risk score, which combined length of employment, individual caseload, and proximity to the radiation source, was formulated for each participant.

Physical, Psychological Differences Evident

Reporting their results online April 12, 2016, ahead of publication in Circulation: Cardiovascular Interventions, Andreassi and colleagues found that not only were potential radiation-related health issues such as skin lesions, orthopedic problems (back, neck, knee), cataracts, and cancers more prevalent in radiation-exposed vs unexposed workers, they were also more common among physicians vs technicians and nurses, and among those with longer vs shorter work histories. Across every disease category, those with 16 or more years of working in an environment with fluoroscopy-guided procedures had the highest event rates.

The prevalence of anxiety/depression was also increased among the radiation-exposed group—at a rate 6 times higher than unexposed colleagues, while the rate of thyroid disease was doubled. Radiation-exposed workers also had greater rates of hypertension and hypercholesterolemia, but not of cardiovascular events.

Rates of health problems in the radiation-exposed versus unexposed groups were confirmed in multiple logistic regression analysis.

Table. Survey Adds To Mounting Evidence That Cath Lab Work Has Radiation-Related Health Effects

“Unfortunately, cardiologists pay little heed to monthly or cumulative reports of radiation exposure. And recent studies confirm that simple, effective protection measures—such as a lead curtain, protection glasses and thyroid collars—are not used by the majority of exposed cardiologists,” Andreassi said in a press release.

Exposure-Related Associations Abound

Among the health problems reported in the survey and previously described in the literature, radiation-induced cancer is “the most alarming and serious” of the long-term occupational risks for interventional cardiologists, the study authors write. Concerns of brain cancer on the left side of the head, which is known to be more exposed to radiation and least protected by standard shielding, have been apparent in the literature as far back as 1998, they note.

“Although the evidence supporting an increase in radiation-induced cancer among interventional cardiologists remains inconclusive, molecular studies showed that interventional cardiologists have a two-fold increase of chromosomal damage (surrogate biomarkers of cancer risk) in circulating lymphocytes than clinical cardiologists,” Andreassi and colleagues write. Recently, findings from the International Nuclear Workers cohort showed strong evidence of positive associations between protracted low-dose radiation exposure and leukemia.

Interestingly, Andreassi and colleagues point out that radiation-related increases in hypertension and elevated serum cholesterol concentrations have also been seen in atomic-bomb survivors, more than half of whom were exposed to an average dose of < 50 mSv. In the press release, Andreassi notes that experienced, busy interventional cardiologists and electrophysiologists typically are exposed to about 5 mSv yearly. In a study published last year, her group also found that cath lab workers showed early signs of vascular aging and subclinical atherosclerosis. They suggest that chronic low-dose rate radiation “triggers changes in the endothelial cell biology that induce the onset of premature senescence, and these alterations may in part be responsible for the increased risk of chronic low-dose radiation–associated cardiovascular disease.”

As for the higher incidence of anxiety and depression in the radiation workers, Andreassi and colleagues hypothesize that this may be related to “high stress and psychological strain,” or a direct effect of radiation exposure to the head of the operator, resulting in “hippocampal neurogenesis and neuronal plasticity, with possible negative effects on mood stability and psychiatric morbidity.”

Stress a Likelier Culprit

Commenting for TCTMD, Stephen Balter, PhD, of Columbia University Medical Center (New York, NY), said the biggest flaw with the study is that everything was assumed to stem from radiation.

“It’s a high-stress job and I’m not surprised that there are health risks associated with doing the job, but these things are unlikely to be associated with radiation per se,” Balter said. “I think people trying to do the best they can are stressed out, and that’s reflected in their mental state and in their chemistry.”

Other than cataracts, which have a long, documented history in operators and others routinely exposed to occupational radiation, the other health issues such as cancers have not been substantiated in the literature as related to exposure, he added.

“The message is you have to be careful, but there’s no reason for panic,” Balter commented, adding that enforcing the wearing of radiation protection glasses and other gear among cath lab workers remains a challenge.

Profit Over People

Even though the current study is limited, there is “more than enough information for us to conclude that the interventional catheterization laboratory is not a healthy workplace,” observe Lloyd W. Klein, MD and Mugurel Bazavan, MD (Rush Medical College, Chicago, IL), in an accompanying editorial.

Despite the known risks to operators, the technology used in cath labs has outpaced safety-related changes in cath lab design and personnel protection, they say, primarily due to a profit mentality on the part of administrators that values talented, young, and inexpensive workers who can be readily replaced.

“Certainly, investing money in an innovative cath laboratory design to protect its workers is hardly cost-effective when nurturing a long career is not the goal of management,” Klein and Bazavan write. “We call on industry and hospital administration to provide responsible stewardship, and for physician societies and interventional leaders to advocate visibly and set new priorities, so that those of us who choose to help patients live a longer and healthier life can ourselves enjoy a long and healthy career, one that allows us to use all the magnificent and cherished skills we have dedicated years to master.”


Sources:

  • Andreassi MG, Piccaluga E, Guagliumi G, et al. Occupational health risks in cardiac catheterization laboratory workers. Circ Cardiovasc Interv. 2016;Epub ahead of print.
  • Klein LW, Bazavan M. The economic imperatives underlying the occupational health hazards of the cardiac catheterization laboratory. Circ Cardiovasc Interv. 2016;Epub ahead of print.

Disclosures:

  • Andreassi, Klein, and Bazavan report no relevant conflicts of interest.
  • Balter reports serving on the speakers’ bureau for Mavig, a manufacturer of radiation-protection supplies.

 

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BRAIN Study Confirms Higher Radiation Dose to Cardiologists’ Left Side

BRAIN Study Confirms Higher Radiation Dose to Cardiologists’ Left Side

Posted on July 29, 2016 by in Safety, Uncategorized with no comments

BRAIN Study Confirms Higher Radiation Dose to Cardiologists’ Left Side:

This study was conducted by Ethisham Mahmud, MD, of University of California, San Diego, along with 7cardiology fellows and 4 physicians as they performed diagnostic and interventional cardiovascular procedures to show the attenuation of radiation by using a lead-free cap. Dr. Mahmud discusses the significant amount of exposure the left time of the cranium receives compared to the right during these procedures. Dr. Mahmud says that we need to do a lot more to further understand the equipment being used and the dangers of radiation in the lab. He notes that lead-free caps are a great way to reduce scatter radiation.

Contact us for a No Brainer surgical cap sample

 

Read the full article below or see the original piece here:

http://www.tctmd.com/show.aspx?id=130244

 

BRAIN Study Confirms Higher Radiation Dose to Cardiologists’ Left Side

Key Points:

  • Single-center study looks at whether protective cap can limit radiation exposure during interventional procedures
  • Exposure consistently greater on left side of head; secondary operators receive more radiation than primary

By Yael L. Maxwell
Tuesday, August 18, 2015

Radiation exposure to the cranium is higher on the left than on the right side for cardiologists doing invasive procedures, though this difference can be attenuated by wearing a nonlead-based cap in the cath lab, according to a study published in the August 17, 2015, issue of JACC: Cardiovascular Interventions.

Implications: BRAIN Study Confirms Higher Radiation Dose to Cardiologists’ Left Side

For the BRAIN (Brain Radiation Exposure and Attenuation During Invasive Cardiology Procedures) study, Ehtisham Mahmud, MD, of the University of California, San Diego (La Jolla, CA), and colleagues assessed 7 cardiology fellows and 4 attending physicians (mean age 38.4 years; all men) at their institution as they performed diagnostic and interventional cardiovascular procedures (mean 66.2 cases per operator; mean fluoroscopy time 14.9 minutes).

Each participant wore a lightweight XPF attenuating cap (BLOXR; Salt Lake City, UT) containing barium sulfate and bismuth oxide. All caps were fitted with 6 dosimeters to measure radiation exposure on the outside and inside of the cap.

A Little More on the Left

Total exposure on the outside of the cap was numerically higher on the left than center location (106.1 vs 83.1 mrad; P = .075), but exposure in both areas was higher than on the right side (50.2 mrad; P < .001 for both). Total exposure inside the cap was similar for all 3 locations—ranging from 41.8 to 42.3 mrad—and was only slightly higher than that measured by the ambient controls (38.3 mrad; P = .046).

After accounting for the ambient radiation, outside left exposure was 16 times higher than exposure on inside left and 4.7 times higher than that on the outside right (P < .001 for both). Exposure on the outside center was 11 times higher than on the inside center of the cap (P < .001), but no difference was seen between outside and inside doses on the right side.

Among a variety of factors—including patient weight, patient BMI, operator height, operator weight, percentage of radial cases, fluoroscopy time, and dose area product—only operator training level (fellow in training or attending cardiologist) predicted the extent of radiation exposure on the outside left and center locations.

Attending cardiologists—who tend to stand in the secondary position farther from the radiation source—received more outside left and center radiation than did fellows, who usually stand in the primary position (P = .002 and P = .01, respectively). “Despite the decreased exposure to the second operator as explained by the inverse square law, the optimal use of shielding in favor of the primary operator may overcome the protection offered by the increased distance,” Dr. Mahmud and colleagues suggest.

The Cap is Only the Beginning

In a telephone interview with TCTMD, Dr. Mahmud said the value of the study is “not as much about the cap as the concept.” Regardless of what protection operators may or may not use, “the most important message of this paper is that the left side of the brain gets tremendously greater exposure to radiation,” he said.

“We’re not doing a whole lot to protect ourselves… whether it’s in the primary or secondary position,” Dr. Mahmud continued. “One option is this cap, but the reality is we need to do a lot more to further understand and design equipment… or to look at alternative ways to do the procedure.”

Stephen Balter, PhD, of Columbia University Medical Center (New York, NY), told TCTMD in a telephone interview that the overall exposure reported outside the cap in the study is “reasonable” and well within the regulatory guidelines of 15,000 total mrad per year.

That said, using the cap “certainly doesn’t hurt,” he commented, and the fact that it can be used multiple times makes it less expensive than other options.

It is well known that radiation exposure is greater on the left than right side of cath lab operators, Dr. Balter explained. “It’s just how they stand and how they look at the monitors.” But “tracking people and understanding what’s happening is very relevant,” he said, adding that more specific results should come in time with theoretical modeling studies.

There will never be enough epidemiological research to show whether the XPF cap and other protections are increasing safety, Dr. Balter said. “There is a theoretical gain based on the radiobiology of models,” he added. “But it’s a small gain based on these numbers.”

All About Education

Dr. Mahmud said his team is planning another study, known as BRAIN 2, to further examine the phenomenon of how operator position affects radiation exposure. “The primary position is actually often better protected than the secondary position, where you’re a little bit further away but you might get more exposure to scatter,” he explained. “This is probably the first time this has ever been measured and ascertained.”

The second study will assess the validity of the difference between positions, Dr. Mahmud said. “We’re actually going to measure in a very systematic manner the radiation exposure for operators in the primary and secondary positions and behind and in front of shields.” BRAIN 2 will require the operators to stay in the same position throughout the course of each procedure, he explained.

But all of these studies, present and future, are meant to educate, Dr. Mahmud observed. “I am always shocked as to how few people seem to even admit that [radiation] is an issue. So I think it’s going to take more and more information, knowledge, and dissemination,” about the potential risk and any preventative options available, he said.

 


Source:
Reeves RR, Ang L, Bahadorani J, et al. Invasive cardiologists are exposed to greater left sided cranial radiation: the BRAIN study (Brain Radiation Exposure and Attenuation During Invasive Cardiology Procedures). J Am Coll Cardiol Intv. 2015;8:1197-1206.

Disclosures:

  • Dr. Mahmud reports receiving clinical trial support from Boston Scientific, Corindus, and Gilead; serving as a consultant to The Medicines Company; and serving on the speakers bureau of Medtronic.
  • Dr. Balter reports no relevant conflicts of interest.

 

 

 

Protecting the Provider:  A Reexamination of Cath Lab Radiation Safety

Protecting the Provider: A Reexamination of Cath Lab Radiation Safety

Posted on July 22, 2016 by in Safety with no comments

Protecting the Health of Cath Lab Technicians

Unlike patients who are only exposed to ionized radiation during their procedure, cath lab technicians are exposed during every procedure they perform. This article discusses health effects associated with radiation exposure in the cath lab along with ways to protect the health of those technicians. Two of those ways are wearing a lead-based shield, and keeping a distance between the operator and the radiation source.

Wohns, David, and Ryan Madder. “Protecting the Provider: A Reexamination of Cath Lab Radiation Safety.” Cath Lab Digest. HMP Communications, Feb. 2015. Web. 26 May 2016.

Read the article in full below, or click the link to see the originally published article at Cath Lab Digest:

http://www.cathlabdigest.com/article/Protecting-Provider-Reexamination-Cath-Lab-Radiation-Safety

 


 

Protecting the Provider: A Reexamination of Cath Lab Radiation Safety

Author(s):

David Wohns, MD, Medical Director, and Ryan Madder, MD, 

Kresge Cardiac Cath Labs, Frederik Meijer Heart & Vascular Institute, 

Spectrum Health, Grand Rapids, Michigan

Topics:
Radiation
Safety
Robotic PCI

In the delivery of high-quality healthcare, patient safety is always a major concern of providers and the public. The safety of healthcare workers frequently receives significantly less attention. Recent events have highlighted this issue and are altering this perspective, with greater recognition of the sacrifices and risks that healthcare workers routinely take to perform their jobs. Patient safety remains the number-one concern of healthcare providers. However, the health and safety of providers should receive equal attention, particularly when novel techniques and strategies can be adopted to mitigate provider risk.

During 2014, the Ebola patients treated within U.S. borders caught the attention of the mainstream media and the public. Besides the public’s general concern for the patients, much attention was devoted to the healthcare workers who were exposed to the virus while caring for Ebola patients. These events raised the public’s awareness of healthcare worker safety and also caused many people to ask: “How do we ensure the safety of healthcare providers who put themselves in harm’s way to look after their patients’ health?

Madder

This increased awareness is especially relevant to interventional cardiologists. Unlike patients, who are only exposed to ionizing radiation during their procedure, interventional cardiologists and other members of the cath lab team are repeatedly exposed to ionizing radiation, subjecting them to potentially serious long-term health issues. Additionally, the physical demands of performing their jobs while wearing heavy protective gear can lead to chronic orthopedic conditions that may prematurely end careers or force change into other fields of medicine.

Wohns

With the increased interest in healthcare worker safety, it is an appropriate time to explore the risks associated with cath lab environments and novel technological solutions available to improve safety.

Assessing cath lab risks

Medical procedures performed in the cath lab are a leading source of occupational ionizing radiation exposure for medical personnel1, due to the use of fluoroscopy and cine angiography during these procedures. This occupational radiation exposure is of particular concern because today’s interventional cardiologists are spending significantly greater time in the cath lab doing more complex and lengthy procedures. Further, the performance of percutaneous coronary intervention (PCI) procedures in cath labs has increased more than 50 percent since 20002, potentially exposing interventional cardiologists to additional radiation.

Although research studies have demonstrated substantial variations in the amount of ionizing radiation to which interventional cardiologists are exposed, a look at the literature reveals the following:

  • One study showed that an interventional cardiologist’s head and neck area are generally exposed to approximately 20 to 30 millisieverts (mSv) per year3, which equates to 2 to 3 rems per year.
  • Another demonstrated that cumulative doses for the average interventional cardiologist after 30 years in the cath lab fall between 50 to 200 mSv, equivalent to 5 to 20 rems, or 2,500 to 10,000 chest x-rays.4
  • A third shows that interventionalists receive approximately 1 to 3 sieverts (Sv) to their head during their career (equivalent to 1,000 to 3,000 mSv, or 100 to 300 rems), which corresponds to about 500mSv to the brain5 (equivalent to 50 rems).
  • A separate study showed that interventional cardiologists have a radiation exposure rate documented to be two to ten times higher than that of diagnostic radiologists.4

 

Adverse health effects

Despite the availability and use of personal protective equipment (PPE), such as lead aprons, leaded glasses and thyroid collars, there are significant radiation exposure risks that have the potential to negatively impact the health of interventional cardiologists and their staff. Below are some findings from recent scientific literature:

  • Cataracts: The Occupational Cataracts and Lens Opacities in Interventional Cardiology (O’CLOC) study revealed that 50 percent of interventional cardiologists and 41 percent of cardiac cath nurses and technologists had significant posterior subcapsular lens changes, a precursor to cataracts, which is typical of ionizing radiation exposure.6
  • Thyroid disease: Studies have reported structural and functional changes of the thyroid as a result of radiation exposure.7 Structural changes such as malignant and benign thyroid tumors develop at a linear rate to dose exposure. Functional changes that would result in hyper- or hypo-thyroidism were noted at elevated doses of external and internal radiation exposure.7
  • Brain tumors and brain disease: A recent study focused on interventionalists who had been diagnosed with a variety of brain tumors. The study revealed that 86% of the brain tumors (where location is known) originated on the left side of the brain.8 This is significant, since interventional cardiologists typically stand with the left side of their body closest to the X-ray source and scattered radiation. In the general population, brain tumors originate with equal frequency on the left and right hemispheres.
  • Cardiovascular changes: Recent studies suggest evidence of a link between low- to moderate-dose radiation exposure and cardiovascular changes, despite personal protective wear.5
  • Reproductive health effects: For males, ionizing radiation has demonstrated a reduction in sperm.9 Additionally, cath lab staff members who may become pregnant while working in the cath lab must also take into consideration the effects that ionizing radiation can have on the developing fetus.

Additionally, there are orthopedic-related consequences from the heavy weight of lead gear worn by interventional cardiologists. The repeated standing and leaning over patients during procedures is fatiguing and commonly leads to chronic orthopedic conditions. A 2006 survey conducted by the Society for Cardiovascular Angiography and Interventions (SCAI) disclosed that interventional cardiologists suffer from a disproportionate amount of back, hip, and knee injuries leading to a significant amount of missed workdays.10 The weight of the personal protective gear is fatiguing, and a physician who is fatigued or experiencing discomfort may be more likely to be distracted or rush through a procedure.

Protecting the health of cath lab employees

There are two traditional techniques used to reduce radiation exposure. One is lead-based shielding, and the second is increasing the distance between the operator and the radiation source.

A relatively new approach to shielding includes devices that support lead aprons that hang from a boom, rather than being worn by clinicians. These hanging aprons provide effective radiation protection with a greater quantity of lead than is traditionally worn by operators. Since the operator is not physically supporting the lead, these devices have the potential to reduce orthopedic injuries and reduce overall operator fatigue.

The advent of robot-assisted percutaneous coronary intervention (PCI) represents another novel approach to reducing radiation exposure to operators. Robotic systems for PCI allow interventional cardiologists to perform procedures remotely, away from the patient’s bedside. Seated in a radiation-protected cockpit, the physician uses digital controls to robotically manage catheters, guide wires, angioplasty balloons, and stents to clear blockages and restore blood flow. These technologies are beneficial in reducing exposure by positioning operators further from the radiation source, but also have the potential to mitigate the impact that wearing PPE has on operators, such as orthopedic pain, missed work and disability.

The robotic-assisted PCI system being used at Spectrum Health is called CorPath (Corindus Vascular Robotics). The CorPath System allows physicians to perform PCI procedures from the comfort of a radiation-shielded cockpit that includes angiographic and hemodynamic monitors. Physicians using the system are able to take measurements, with sub-millimeter accuracy, of relevant anatomy, as well as advance or retract guide wires and/or balloon stent catheters with movements as small as a millimeter. A clinical trial has shown that using the robotic system reduced radiation exposure to the primary operator by more than 95 percent.11

Elevating healthcare worker safety

Interventional cardiology is a uniquely rewarding, highly innovative profession. The bulk of the innovation in our field over the past 3 decades has appropriately been focused on patient care. However, the manner and circumstances with which that care has been delivered in the cath lab has changed little over time. New approaches are now available to begin to mitigate the biomechanical, orthopedic, and radiation risks of working in the cath lab. The CorPath System is an example of a device with tremendous promise to reduce these hazards for interventional cardiologists, contributing to longer, healthier careers. We have been excited to bring this innovative technology to our cath labs as part of the evolution of our environment.

References

  1. Sun Z, AbAziz A, Yusof AK. Radiation-induced noncancer risks in interventional cardiology: optimisation of procedures and staff and patient dose reduction. Biomed Res Int. 2013; 2013: 976962. doi: 10.1155/2013/976962.
  2. Best PJ, Skelding KA, Mehran R, Chieffo A, Kunadian V, Madan M, et al; Society for Cardiovascular Angiography & Interventions’ Women in Innovations (WIN) Group. SCAI consensus document on occupational radiation exposure to the pregnant cardiologist and technical personnel. Catheter Cardiovasc Interv. 2011 Feb 1; 77(2): 232-241. doi: 10.1002/ccd.22877.
  3. L Renaud. A 5-y follow-up of the radiation exposure to in-room personnel during cardiac catheterization. Health Phys. 1992 Jan; 62(1): 10-15.
  4. Picano E, Andreassi MG, Piccaluga E, Cremonesi A, Guagliumi G. Occupational risks of chronic low dose radiation exposure in cardiac catheterisation laboratory: the Italian Healthy Cath Lab study. EMJ Int Cardiol. 2013; 1: 50-58.
  5. Picano E, Vano E, Domenici L, Bottai M, Thierry-Chef I. Cancer and non-cancer brain and eye effects of chronic low-dose ionizing radiation exposure. BMC Cancer. 2012 Apr 27; 12: 157. doi: 10.1186/1471-2407-12-157.
  6. Vano E, Kleiman NJ, Duran A, Romano-Miller M, Rehani MM. Radiation-associated lens opacities in catheterization personnel: results of a survey and direct assessments. J Vasc Interv Radiol. 2013 Feb; 24(2): 197-204. doi: 10.1016/j.jvir.2012.10.016.
  7. Ron E, Brenner A. Non-malignant thyroid diseases after a wide range of radiation exposures.Radiat Res. 2010 Dec; 174(6): 877-888. doi: 10.1667/RR1953.1.
  8. Roguin A, Goldstein J, Bar O, Goldstein JA.  Brain and neck tumors among physicians performing interventional procedures. Am J Cardiol. 2013 May 1; 111(9): 1368-1372. doi: 10.1016/j.amjcard.2012.12.060.
  9. Burdorf A, Figà-Talamanca I, Jensen TK, Thulstrup AM. Effects of occupational exposure on the reproductive system: core evidence and practical implications. Occup Med (Lond). 2006 Dec; 56(8): 516-520.
  10. Dehmer GJ. Occupational hazards for interventional cardiologists. Catheter Cardiovasc Interv. 2006 Dec; 68(6): 974-976.
  11. Weisz G, Metzger DC, Caputo RP, Delgado JA, Marshall JJ, Vetrovec GW, et al. Safety and feasibility of robotic percutaneous coronary intervention: PRECISE (Percutaneous Robotically-Enhanced Coronary Intervention) Study. J Am Coll Cardiol. 2013 Apr 16; 61(15): 1596-1600. doi: 10.1016/j.jacc.2012.12.045.

Disclosure: Dr. Wohns and Dr. Madder report no conflicts of interest regarding the content herein.

The authors can be contacted via David.Wohns@spectrumhealth.org.

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Copyright AP Radiation protection
Cath Lab Workers May Be Harmed by Radiation

Cath Lab Workers May Be Harmed by Radiation

Posted on July 1, 2016 by in Safety with no comments

This article discusses a study comprising 466 hospital staff members, including interventional cardiologists, electrophysiologists, nurses and technicians who are exposed to radiation regularly. Additionally, 280 staffers who were not exposed to radiation in the cath lab were interviewed. This study gathered work-related and lifestyle information, current medications and health status for these workers. Almost three percent of interventional cardiology staff had a history of cancer, compared to less than one percent of the unexposed group. Eight percent of lab workers had experienced skin lesions, 30 percent experienced orthopedic illness and five percent had cataracts, compared to two, five, and less than one percent of the unexposed group.

See the full article below or read the original by clicking the link below:

http://www.newsmax.com/Health/Health-News/cath-lab-workers-healthcare/2016/04/13/id/723656/

Cath Lab Workers May Be Harmed by Radiation
Wednesday, 13 Apr 2016 08:53 AM

Copyright AP Radiation protection
Healthcare workers in labs where patients undergo heart procedures guided by X-rays may be at higher risk for cataracts, skin lesions, bone disorders or cancer than other healthcare workers, according to a new study.

Procedures in the “cath lab” – named for the catheters threaded into the heart – are done for all forms of cardiac disease, like congenital heart defects, ischemic heart disease or heart arrhythmias, said lead author Maria Grazia Andreassi of the CNR Institute of Clinical Physiology in Pisa, Italy.
“These procedures, highly effective and often life-saving, require substantial radiation exposure to patients,” Andreassi told Reuters Health by email.

But staff members, too, are exposed to radiation. In particular, for the cardiologists and electrophysiologists who work near the patient and the radiation source, “the cumulative dose in a professional lifetime is not negligible,” Andreassi said.

The researchers used questionnaires to gather work-related and lifestyle information, current medications and health status for 466 exposed hospital staff, including interventional cardiologists, electrophysiologists, nurses and technicians, half of whom had been working for at least 10 years. They also surveyed 280 staffers who had not been exposed to radiation in the cath lab.

Almost 3 percent of interventional cardiology staff had a history of cancer, compared to less than 1 percent of the unexposed comparison group. Eight percent of lab workers had experienced skin lesions, 30 percent had an orthopedic illness and five percent had cataracts, compared to two percent, five percent and less than one percent of the unexposed group, respectively.

Doctors had higher risks than nurses or technicians, and risk was higher for those who had been working more than 16 years, as reported in Circulation: Cardiovascular Interventions.

Stroke and heart attack risk were similar in the radiation and non-radiation exposure groups.

“Compared to healthcare professionals not exposed to radiation, workers with more than 16 years of occupational work are approximately 10 times more likely to experience cataracts and eight times more likely to have cancer after adjusting for other confounders,” like age and smoking status, Andreassi said.

Protective measures like leaded aprons, thyroid collars, leaded glasses, and overhead radiation shields can reduce the radiation dose to the operators, but are still not used regularly in every laboratory, Andreassi said.

Healthcare workers in the cath lab “sort of know there is a risk but it’s typically presented to young people as something to know about and not to worry about,” said Dr. Lloyd Klein of Advocate Illinois Medical Center in Chicago, who coauthored an editorial accompanying the new study.
“Everyone wears lead aprons, and increasingly, lead caps,” Klein told Reuters Health by email. “We are careful about unnecessary exposure.”

But wearing lead creates orthopedic problems and doesn’t completely protect against the effects of radiation, he said.

The Occupational Safety and Health Administration and federal and state agencies probably need to get more involved than they already are, he said.

“Unfortunately, interventional cardiologists are often inadequately trained in radiation safety and radiobiology, and hospitals have few training programs regarding radiation risk and exposure,” Andreassi said.
© 2016 Thomson/Reuters. All rights reserved.

 

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