Lead Extraction With Baffle Stenting in Adults With Transposition of the Great Arteries.

Affiliation

Department of Medicine, Electrophysiology Service, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada; Department of Medicine, Adult Congenital Heart Disease Center, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada. Electronic address: [Email]

Abstract

OBJECTIVE : This study sought to assess the feasibility, safety, and outcomes of a stepwise combined percutaneous approach that includes transvenous lead extraction (TLE) followed by baffle stenting and device reimplantation in patients with D-transposition of the great arteries (D-TGA) and atrial baffle dysfunction.
BACKGROUND : Management of baffle leak or stenosis in patients with D-TGA and atrial switch surgery is challenging in the presence of transvenous cardiac implantable electronic devices. Baffle complications hinder device-related interventions and addressing baffle dysfunction often requires TLE.
METHODS : All consecutive patients with D-TGA and TLE followed by a percutaneous baffle intervention at the Montreal Heart Institute between 2009 and 2018 were enrolled.
RESULTS : Ten patients, median 38.6 years of age (range 15.2 to 50.6 years), 5 males (50.0%) were included. Procedures were performed for a device-related indication in 5 patients (50.0%) and for baffle dysfunction in 5 patients (50.0%). A total of 19 leads (17 pacing, 2 defibrillation) were targeted, with a median time from implantation of 8.7 (range 4.3 to 22.1) years. A laser sheath was most frequently required for successful TLE, which was achieved in all patients. Immediate baffle stenting was performed in 9 patients (90.0%) and immediate device reimplantation in 6 (60.0%). During a median follow-up of 3.0 (range 0.1 to 8.2) years, the only complication was subpulmonary atrioventricular valve damage requiring surgery in 1 patient, 8 months after the procedure.
CONCLUSIONS : A combined approach with TLE followed by baffle stenting and reimplantation appears to be safe and feasible in D-TGA patients with atrial switch, baffle dysfunction, and transvenous leads.

Keywords

Mustard or Senning operation,baffle leak,baffle obstruction,baffle stenting,congenital heart disease,transvenous lead extraction,

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