Incidence and prognosis of pacemaker lead-associated masses: a study of 1,569 transesophageal echocardiograms.

Abstract

TEE identified an echogenic mass on 12% of the leads imaged, with 60% having suspected endocarditis. The mortality rate of lead vegetation was 11%. An incidental mass was noted on 5% of the leads, with no significant associated morbidity or mortality observed.