Severe tricuspid stenosis related to endocardial pacemaker lead / Estenose tricúspide severa induzida por eletrocatéter de marcapasso

Tricuspid stenosis (TS) is an uncommon complication of transvenous ventricular pacing. We present a case of TS developed 14 years after pacemacker implantation. The etiology of stenosis appeared to be inflammation and fibrosis of tricuspid valve (TV) secondary to leaflet perforation by the pacemacker lead and it was managed successfully with surgical valvuloplasty. Iatrogenic TS may occur more frequently than is clinically suspected and it should be considered in any patient with endocardial leads presenting with right heart failure.