Endocardial transvenous pacing in patients with surgically palliated univentricular hearts: A review on different techniques, problems and management.

ABSTRACT: Fontan surgery and its modifications have improved survival in various forms of univentricular hearts. A regular atrial rhythm with atrioventricular synchrony is one of the most important prerequisite for the long-term effective functioning of this preload dependent circulation. A significant proportion of these survivors need various forms of pacing for bradyarrhythmias, often due to sinus nodal dysfunction and sometimes due to atrioventricular nodal block. The diversion of the venous flows away from the cardiac chambers following this surgery takes away the simpler endocardial pacing options through the superior vena cava. The added risks of thromboembolism associated with endocardial leads in systemic ventricles have made epicardial pacing as the procedure of choice. However challenges

SUBMITTER: Umamaheshwar KL 

PROVIDER: S-EPMC6354237 | biostudies-literature | 2019 Jan - Feb

REPOSITORIES: biostudies-literature