Please login or register to print this page.

News & Views

PREVENTING OVERDIAGNOSIS OF ICD LEAD FRACTURES

Implantable cardioverter defibrillator (ICD) diagnostics can be used to discriminate accurately between lead fractures and normally functioning leads, according to a study published recently in the Journal of the American College of Cardiology.1

Researchers led by Dr Charles Swerdlow (Cedars-Sinai Medical Center, Los Angeles) used a development set of 91 leads to construct an algorithm for locating lead fractures, identified by either extremely high maximum impedance or noise oversensing with a normal impedance trend.

A short interval from surgery to impedance rise or a prolonged stable impedance after an abrupt rise were also taken to indicate a connection problem.  When applied to an independent test set of 100 leads, the algorithm correctly classified 100% of fractures and 87% of connection problems that were misdiagnosed as fractures.

The authors say that their algorithm may help to determine the aetiology of high-impedance alerts and may avoid unnecessary lead replacement procedures.

References

1 Swerdlow CD, Sachanandani H, Gunderson BD, Ousdigian KT, Hjelle M, Ellenbogen KA.  Preventing Overdiagnosis of Implantable Cardioverter-Defibrillator Lead Fractures Using Device Diagnostics.  JACC 2011;57:2330–9.

Published on: July 6, 2011

Members Area

Log in or Register now.

SEARCH THE SITE

RSS FEED

Subscribe to our RSS feed
home

GET EXCLUSIVE UPDATES

Sign up for our regular email newsletters & be the first to know about fresh articles and site updates.

RECENT COMMENTS

    None Found

ENDORSED BY

  • ArrhythmiaAlliance
  • Stars
  • Anticoagulation Europe
  • Atrial Fibrillation Association
 

You are not logged in

You need to be a member to print this page.
Sign up for free membership, or log in.

You are not logged in

You need to be a member to download PDF's.
Sign up for free membership, or log in.