Extremely low 90-day cardiac device infection rates with TYRX antibacterial envelope use

New prospective data presented on 1,000 patients at 2013 Heart Rhythm Society shows over 90 percent fewer major device infections

2013-05-11

(Press-News.org) Denver, CO (May 11, 2013): Use of TYRX, Inc.'s AIGISRx® Antibacterial Envelope reduced major infection rates by more than 90% in patients undergoing Cardiovascular Implantable Electronic Device (CIED) replacement procedures compared to similar high-risk cohorts, according to the CITADEL & CENTURION clinical study results presented on Saturday at the Late Breaking Clinical Trials session at Heart Rhythm 2013, the Heart Rhythm Society's 34th Annual Scientific Sessions.

CITADEL / CENTURION is a prospective, multicenter clinical study to evaluate the major device infection and mechanical complication rates in the 12 months after implantation, in patients at high risk for CIED infection who have their CIED implanted with an AIGISRx Antibacterial Envelope. Study patients were enrolled at 55 US centers, and were at high-risk for infection because they were undergoing a CIED replacement procedure with an implantable cardioverter-defibrillator (ICD), (CITADEL), or a cardiac resynchronization therapy (CRT) device (CENTURION). The results from a planned interim analysis of the primary endpoints for the first 1000 eligible patients after 90 days of follow up were presented by Dr. Charles A. Henrikson, the Chief of Electrophysiology at the Oregon Health Sciences University.

Key study findings include:

The CITADEL / CENTURION cohort at 90 days of follow-up had 95% fewer major CIED infections than the pre-defined published control cohort of 533 ICD and CRT replacement procedures (Gould et al. JAMA 2006, 295(16); 1907-1911) which had a major CIED infection rate of 1.88% at a mean follow-up of 81 days (0.1% vs. 1.88%; P

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