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St. David's South Austin Hospital Leading the Central Texas Region in Laser-Assisted Lead-Extraction Procedures
Date:10/30/2009

AUSTIN, Texas, Oct. 30 /PRNewswire/ -- Physicians at St. David's South Austin Hospital are leading the Central Texas region in laser-assisted lead-extractions. Lead-extraction is a complicated procedure to remove leads, or transvenous pacemaker electrodes frequently used in patients with pacemakers or other implanted Cardiac Rhythm Management (CRM) devices. Recent studies have shown that using a laser can be a safe and effective way to remove cardiac leads when performed by a skilled physician. Previously, lead removal often required "open-heart" surgery.

"Over time, cardiac leads can sometimes fracture, become infected or become less effective due to biological changes at the site where they are implanted in the heart tissue, causing them to malfunction," said Shane Bailey, M.D., an electrophysiologist with Texas Cardiac Arrhythmia Institute at St. David's HealthCare. "This can create a very dangerous situation for the patient."

In many cases, damaged leads can be disconnected and left in the body, and are then replaced with new leads that are positioned to provide better functionality. Eventually, though, nonfunctioning leads must often be removed.

Doctors at St. David's South Austin Hospital are now using a laser device called the Excimer® Laser Sheath, which consists of a catheter that follows the lead and uses a laser to free it from the surrounding tissue, which often grows around the lead. A ring of laser energy dissolves binding scar tissue around the circumference of the lead allowing for safe, accurate and efficient cardiac lead removal.

"In the past, leads that were not easily removed had to be extracted using a series of long flexible sheaths," said Robert Canby, M.D., an electrophysiologist with Texas Cardiac Arrhythmia Institute at St. David's HealthCare. "These sheaths were advanced down the target lead, pushing and tearing away the tissue with which the body had coated it. This was a reasonably high-risk procedure that could only have been executed by experienced physicians."

The Excimer® Laser Sheath allows physicians to cut away the tissue so that the lead can be removed with minimal trauma. It is especially helpful in dealing with patients who require cardiac lead extraction due to an infection. In such cases, it is unlikely that antibiotics will cure the infection with the leads in place, so they must be removed to provide the body the opportunity to heal.

"Leaving non-functioning leads in the patient's body is no longer an acceptable form of treatment for many patients," Dr. Bailey said. "We now know more about the potential problems and we know that lead removal procedures can be very effective at the hands of an experienced physician."

In addition to using a laser to remove leads, doctors at St. David's South Austin Hospital also remove leads manually or with other mechanical equipment, which account for about half of the lead-removal procedures performed at St. David's South Austin Hospital.

Implantable CRM devices are used to manage cardiac arrhythmia, or an irregular or abnormal heart rate. They are designed to monitor and regulate the heart beat or, in some cases, defibrillate (shock) the heart if it goes into a potentially life-threatening rhythm. CRMs are usually implanted into a patient's upper chest, just under the skin and soft tissue, and can be located on either the left or right side of the chest.

The Excimer® Laser is manufactured by Spectranetics® Corporation.

St. David's South Austin Hospital

St. David's South Austin Hospital is owned by St. David's HealthCare, one of the largest health systems in Texas. St. David's South Austin Hospital, located at 901 West Ben White Blvd., is a member of St. David's HealthCare. The facility, built in 1982, offers a comprehensive and nationally recognized cardiac program, a fully renovated maternity unit with Level I and Level II nurseries and a thriving 24-hour emergency department. St. David's South Austin Hospital was recognized for three consecutive years by health information company, Solucient: as one of the nation's 100 Top Hospitals®, and as one of the 100 Top Hospitals® for Cardiovascular Care. The hospital has received numerous other quality awards for women's services and general surgery, among other services. St. David's South Austin Hospital, with 252 patient beds, completed a $50-million expansion project in 2004 to enhance its services and facilities. For more information, please visit www.StDavids.com/sdsah.aspx.

    Media Contacts:
    Kristin Marcum and Erin Ochoa
    Elizabeth Christian & Associates Public Relations
    (512) 472-9599

SOURCE St. David's South Austin Hospital


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SOURCE St. David's South Austin Hospital
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