Utility of fluoroscopy alone for monitoring of intrathoracic bleeding complications during transvenous lead extraction.

Abstract

Transvenous lead extraction (TLE) carries a significant risk of major complications, namely bleeding into the pericardial sac or thoracic cavity. While echocardiographic imaging has been recommended for intraprocedural monitoring for those complications, no studies had examined the potential benefits of fluoroscopy alone as an alternative to echocardiography. The aim of this study was to evaluate the utility of fluoroscopy for monitoring intrathoracic bleeding complications during TLE. This is a single-center retrospective study of consecutive patients who underwent TLE of a pacemaker or ICD lead with fluoroscopy-only monitoring. At the beginning of each TLE procedure, baseline fluoroscopic images were obtained for both lung fields and the cardiac silhouette. Similar images were acquired again when hypotension develops during the procedure. Fluoroscopy alone (without echocardiographic imaging) was used in 783 consecutive patients (54% women; average age, 71.5 ± 12.9 years) who underwent TLE. There were 93 patients (11.9%) who experienced significant hypotension. Fluoroscopy showed no obvious cause for hypotension in 63 patients. Right ventricular inversion was implied by fluoroscopy in 27 patients. Fluoroscopy detected new pericardial effusion in two patients and new right pleural effusion in one patient, which prompted halting the extraction procedure and therapeutic intervention. Additionally, routine fluoroscopic images revealed the development of an unsuspected new small left pleural effusion in one patient and a pericardial effusion in another. In-hospital mortality rate was 0%. In selected patients undergoing TLE, fluoroscopy can provide valuable information for identifying or excluding cardiovascular causes during periods of intraprocedural hemodynamic instability.