Computed tomography predictors of increased transvenous lead extraction difficulty.

Area of Science:

• Cardiology
• Radiology
• Medical Imaging

Background:

• Predicting transvenous lead extraction (TLE) difficulty is crucial for patient outcomes.
• Computed tomography (CT) characteristics are being investigated as potential predictors of TLE complexity.

Purpose of the Study:

• To identify specific CT findings that correlate with increased difficulty during TLE procedures.
• To establish CT as a valuable tool for pre-procedural risk assessment in TLE.

Main Methods:

• Analysis of 343 consecutive patients undergoing TLE from January 2018 to February 2022.
• Review of cardiac-gated chest CT scans with contrast by a single radiologist.
• Multivariable regression analyses to identify predictors of fluoroscopy time and mechanical sheath use.

Main Results:

• Venous occlusion on CT was significantly associated with longer lead-removal fluoroscopy times (p=0.004).
• Lead-associated calcification (OR: 5.08) and venous occlusion (OR: 3.72) were strongly linked to the need for mechanical sheath use during TLE.

Conclusions:

• Chest CT findings, specifically venous occlusion, can predict increased fluoroscopy time in TLE.
• CT-detected lead calcification and venous occlusion are significant predictors for requiring mechanical assistance during TLE, highlighting their utility in pre-procedural planning.