Navigation Links
Mayo Clinic study shows people with heart devices can 'digest' advanced diagnostic technology safely
Date:10/26/2009

SCOTTSDALE, Ariz. A new Mayo Clinic study suggests that video capsule endoscopy (CE), a procedure that uses wireless technology in diagnosing intestinal disease, is safe for patients with heart devices. Wireless electrical gadgets, such as cell phones, have been shown to interfere with implanted heart devices, including pacemakers and defibrillators. This risk has led medical experts to speculate that capsule endoscopy could similarly cause heart devices to fail.

As a result, the noninvasive procedure has been contraindicated by the U.S. Food and Drug Administration (FDA) for patients with cardiac devices. Contraindication means an increased risk may be involved.

Generally, the topic has remained in the subject of speculation, although several small studies have found no interference with cardiac devices, and no clinical reports have surfaced linking CE to problems with them.

The study concludes that performing a video capsule endoscopy on patients who have cardiac devices appears safe, and, conversely, the cardiac implants don't impair capsule endoscopies.

"Ours is the largest study of its kind, with 84 patients (91 capsule studies), and we found no complications from the capsule endoscopy," says Jonathan Leighton, M.D., chair of the Division of Gastroenterology at Mayo Clinic in Arizona and senior author of a report on the research.

"The size of the study population should give physicians confidence to use the procedure," says Dr. Leighton. Mayo physicians perform capsule endoscopy routinely, averaging from two to five cases a week at the Arizona site.

In the study, Lucinda Harris, M.D., Stephanie Hansel, M.D., reviewed the medical records of 84 patients who underwent CE and had implantable cardiac devices cardiac pacemakers, defibrillators or left ventricular assist devices at Mayo Clinic's campuses in Arizona and Rochester, Minn.

The patients' average age was 73, and 69 percent had pacemakers. In a large majority of cases (74 percent), the reason for performing the CE was to locate gastrointestinal bleeding. In each case, the capsule explored the entire length of the small bowel. Assessments after the procedure revealed no interference with the implanted cardiac devices.

Approved by the FDA in 2000, capsule endoscopy uses a tiny wireless camera to examine the inside of the digestive tract. The patient swallows a vitamin-sized capsule containing a battery-driven camera that travels through the intestines, taking thousands of pictures. It then transmits them to an external receiver from areas deep inside the small bowel previously accessible only through surgery. The device is later excreted through the colon.

The use of capsule endoscopy has solved a long-term problem for doctors: visualizing the midsection of the small intestine, which can measure 20 feet in length. Standard endoscopy, done through the mouth or the rectum, can't penetrate deeply enough and requires anesthesia. Now, CE is used to visualize the entire small intestine. Most commonly, it is used to find the source of unexplained bleeding. The procedure is also used to detect the causes of anemia, abdominal pain and certain intestinal diseases.

Because cell phones, microwave ovens and other wireless appliances have affected heart devices, physicians were concerned that the radiofrequencies used in CE may potentially interfere with the radiofrequency of heart devices. But in the study, the only research complication occurred when a capsule's receiver stopped working for reasons unrelated to a heart device, according to Dr. Harris, a Mayo gastroenterologist and first author on this study.

"There were no problems with the devices interacting," says Dr. Harris. "The data is now out there. We are coming to the point where we know this is a relatively safe procedure. She was scheduled to report on the project Monday, Oct. 26, at a meeting of the American College of Gastroenterology in San Diego.

Affirming the procedure's safety when heart devices are present mainly benefits elderly patients, who are the most prone to have implanted devices (primarily pacemakers) and to experience unexplained intestinal bleeding from illnesses or blood-thinning medications.

Mayo doctors plan to continue using capsule technology on patients with implants. But even with the positive results of the study, they will continue to do CE as an inpatient procedure.

"If it were not contraindicated by the FDA, we would do it as outpatient, and it would reduce costs, just as safely," says Dr. Leighton.


'/>"/>

Contact: Lynn Closway
closway.lynn@mayo.edu
480-301-4337
Mayo Clinic
Source:Eurekalert

Related medicine news :

1. Anemia and tropical diseases; Is pharmacogenomics ready for the clinic?
2. Radiologists encouraged to look beyond cancer for clinically unseen diseases
3. Clinical depression linked to abnormal emotional brain circuits
4. Preclinical study suggests organ-transplant drug may aid in lupus fight
5. Mayo Clinic researchers discover new diagnostic test for detecting infection in prosthetic joints
6. AASM encourages those student-athletes at risk for developing osa to visit a sleep clinic
7. Thailand: Partners Open Free AIDS Treatment Clinic in Renowned AIDS Temple in Lop Buri
8. MinuteClinic Becomes Participating Provider with Assurant Health
9. Therap Services Continues to Hire Experienced Developmental Disability Industry Clinicians for its Customer Support Team
10. Acupuncturists Relocation Tightens Relationship With Fertility Clinic
11. Cardiovascular Technologies to be Highlighted at 5th Annual Cleveland Clinic Medical Innovation Summit, Oct. 1-3
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/26/2016)... Cary, North Carolina (PRWEB) , ... June 26, 2016 , ... ... the release of a new product that was developed to enhance the health of ... harvested for centuries. , The two main herbs in the PawPaws Cat Kidney ...
(Date:6/25/2016)... ... June 25, 2016 , ... ... issues and applications at AcademyHealth’s Annual Research Meeting June 26-28, 2016, at the ... several important health care topics including advance care planning, healthcare costs and patient ...
(Date:6/25/2016)... Aliso Viejo, California (PRWEB) , ... June 25, 2016 , ... ... preset to fit their specific project," said Christina Austin - CEO of Pixel Film ... all fully customizable and all within Final Cut Pro X . Simply select ...
(Date:6/25/2016)... ... June 25, 2016 , ... Dr. Calvin Johnson has dedicated ... has implemented orthobiologic procedures as a method for treating his patients. The procedure ... doctors to perform the treatment. Orthobiologics are substances that orthopaedic surgeons use to ...
(Date:6/24/2016)... ... 2016 , ... A recent article published June 14 on E ... goes on to state that individuals are now more comfortable seeking to undergo not ... as calf and cheek reduction. The Los Angeles area medical group, Beverly Hills Physicians ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... 2016  In a startling report released today, National Safety ... lacking a comprehensive, proven plan to eliminate prescription opioid overdoses. ... how states are tackling the worst drug crisis in recorded U.S. ... Kentucky , New Mexico , ... Of the 28 failing states, three – Michigan ...
(Date:6/23/2016)... , June 23, 2016 Research and ... News Issue 52" report to their offering. ... influenza treatment creates a favourable commercial environment for MedImmune to ... patient base that will serve to drive considerable growth for ... would serve to cap sales considerably, but development is still ...
(Date:6/23/2016)... Colombia , June 23, 2016  Astellas today announced the establishment of Astellas Farma Colombia (AFC), a new ... affiliate in Latin America . ... ... ... ...
Breaking Medicine Technology: