CT scans don't interfere with cardiac rhythm devices

CT scans don't interfere with cardiac rhythm devices

(HealthDay)—Cardiac rhythm management devices should not be a cause for delaying computed tomography (CT) imaging procedures, according to research published online Feb. 26 in the Journal of the American College of Cardiology.

Ayman Hussein, M.D., from the University of Maryland in Baltimore, and colleagues assessed 516 CT scans that involved direct of cardiac rhythm management (CRM) devices (332 defibrillators and 184 pacemakers) at two large-volume centers between July 2000 and May 2010.

The researchers found that none of the CT scans was associated with the composite end point of death; bradycardia or tachycardia requiring termination of the scan or an immediate intervention; unplanned hospital admissions; reprogramming of the device; inappropriate defibrillator shocks; or device replacement/revision due to CT imaging. There were no differences in changes in battery voltage or lead parameters between devices exposed to radiation and those not exposed. In a small group of devices (both in the CT group and in the control group), potentially significant changes in device parameters were observed. However, there was no definitive link to CT and there were no associated clinical consequences.

"The findings suggest that the presence of cardiac devices should not delay or result in cancellation of clinically indicated CT imaging procedures, and provides evidence which would be helpful when the FDA advisory is reevaluated," the authors write.

One author disclosed financial ties to the medical device industry.

More information: Full Text (subscription or payment may be required)
Editorial (subscription or payment may be required)

add to favorites email to friend print save as pdf

Related Stories

Multiple cone-beam scans fall within acceptable ranges

Mar 14, 2013

(HealthDay)—The radiation dose imparted to patients undergoing multiple intraoperative lumbar single cone-beam computed tomography (CT) scans is within the dose range that patients receive during a single ...

X-rays overused in ICU: Ultrasound safer, just as effective

Oct 28, 2013

A new study shows that the use of ultrasound testing rather than x-rays or CT scans in the ICU reduces patient radiation exposure and lowers costs of care. The study was presented at CHEST 2013, the annual meeting of the ...

Awareness of risks reduces parents' desire for CT scans

Jul 08, 2013

(HealthDay)—Willingness to subject children with a head injury to computed tomography (CT) scans decreases once parents are informed of lifetime malignancy risks associated with the scans, but most are ...

Recommended for you

NT-proBNP modestly improves CVD risk prediction in women

22 hours ago

(HealthDay)—N-terminal pro-B-type natriuretic peptide (NT-proBNP) modestly improves cardiovascular disease (CVD) risk prediction for women, according to a study published in the Oct. 28 issue of the Journal of ...

User comments