P1181
Lead dependent tricuspid dysfunction- mechanism and treatment

Lead dependent tricuspid dysfunction (LDTD) is  a hardly recognizable severe complication of permanent cardiac pacing.

Aim of the study was to assess the mechanism of lead dependent tricuspid dysfunction (LDTD) and effect of transvenous leads extraction (TLE) in theese patients.

We analyzed the clinical data of 3110 patients undergoing TLE from 01/2006 to 09/2019 in a single center. Echocardiographic assessment  was performed in 2559 patients. LDTD mechanism and improvement of valve function after unblocking (by removing the lead) were analyzed.

LDTD was recognized in 98 (7,3%) patients. The most common mechanism of LDTD was pulling up the leaflet of tricuspid valve by the lead. Improvement of tricuspid valve function was observed in all patients with recognized LDTD. 18 patients with slight improvement were directed to cardiosurgery after TLE.

LDTD should be considered in patients with implanted pacing system and severe tricuspid regurgitation. Transvenous leads extraction can improve function of tricuspid valve in theese patients.

Abstract Table