Computed Tomography-Guided Risk Assessment in Percutaneous Lead Extraction

Area of Science:

• Cardiovascular Imaging
• Interventional Cardiology
• Medical Device Technology

Background:

• Lead adhesions can unpredictably complicate lead extraction (LE), even for newer leads.
• Identifying high-risk features pre-procedurally is crucial for managing LE complexity.

Purpose of the Study:

• To evaluate if pre-procedural computed tomography (CT) can identify high-risk operative features.
• To determine if CT can predict increased procedural complexity during lead extraction.

Main Methods:

• 143 patients undergoing CT within 90 days of planned lead extraction were analyzed.
• CT scans were reviewed blinded to outcome using a checklist for specific findings.
• Procedural complexity and major complications served as the combined primary endpoint.

Main Results:

• Severe lead adhesions identified on CT were associated with more complex procedures (p=0.04).
• In patients with leads <10 years indwelling, CT-detected severe adhesions predicted worse outcomes (OR: 6.4, p=0.02).
• Other CT findings like perforation or stenosis were not significantly linked to complexity.

Conclusions:

• Pre-procedural CT effectively locates severe lead adhesions prior to extraction.
• For leads <10 years, CT is valuable in identifying patients likely to experience complex lead extractions.