Predictors of complications of endovascular chronic lead extractions from pacemakers and defibrillators: a...

Area of Science:

• Cardiology
• Medical Device Technology
• Interventional Procedures

Background:

• Increasing rates of chronic lead extractions from cardiac rhythm management (CRM) devices necessitate understanding associated risks.
• Complications following lead extraction procedures pose a significant clinical challenge.

Purpose of the Study:

• To identify predictors of complications associated with chronic lead extractions from CRM devices.
• To analyze factors contributing to both major and minor complications post-extraction.

Main Methods:

• Retrospective analysis of 212 patients undergoing endovascular chronic CRM lead extraction between 2002 and 2008.
• Collection of demographic data, procedural details, and 30-day post-extraction complication data.
• Statistical analysis to determine independent predictors of complications.

Main Results:

• A total of 26 complications (11.8%) occurred in 25 patients, including 9 major (4.2%) and 17 minor (8.0%) events.
• Higher number of explanted right ventricular leads (HR=3.51, P=0.013) independently predicted complications.
• Implantable cardioverter-defibrillator (ICD) lead extraction showed a trend toward significance (HR=2.57, P=0.053) compared to pacemaker leads; elevated white blood cell count predicted major complications (HR=1.52, P=0.005).

Conclusions:

• The number of extracted leads and the presence of defibrillator leads are significant predictors of complications.
• A prospective strategy involving removal of all leads not connected to a device may reduce complication risks.
• Further research is warranted to validate the potential benefits of removing unused leads.