Key result
Persistent left superior vena cava is an anatomic variant occurring in 0.47% of device patients that may hinder cardiac resynchronization therapy device implantation.
Why the study?
Can cardiac resynchronization therapy be performed using a two-leads-only approach in patients with persistent left superior vena cava?
Can cardiac resynchronization therapy be performed using a two-leads-only approach in patients with persistent left superior vena cava?
Highlights the anatomical challenges of persistent left superior vena cava during CRT implantation and questions the feasibility of a two-leads-only approach.
Persistent left superior vena cava (PLSVC) is a congenital developmental abnormality of the sinus venosus with an incidence of 0.47% in patients undergoing cardiac implantable electronic devices.1 The 2 variants include a double superior vena cava (right and left SVC, with or without an innominate vein connecting the two) or a single left-sided SVC (without a right SVC), which may occur in one third of PLSVC subjects.1 This anatomic variant may hinder pacemaker / cardiac resynchronization therapy (CRT) device implantation, especially when the placement of the left ventricular (LV) lead is concerned.
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Biffi et al. (2016) studied Persistent left superior vena cava (PLSVC). Cardiac resynchronization therapy was evaluated. Persistent left superior vena cava is an anatomic variant occurring in 0.47% of device patients that may hinder cardiac resynchronization therapy device implantation.
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