Delivery of cardiac resynchronization therapy via the left inferior phrenic vein: a case report.

ABSTRACT:

Background

The successful implantation of cardiac resynchronization therapy (CRT) may be prevented by anatomical variations that preclude the delivery of clinically effective left ventricular (LV) pacing from within the coronary sinus (CS) or its tributaries. Failure of lead delivery, suboptimal LV capture thresholds, or intractable phrenic nerve capture with accompanying diaphragmatic twitch is often encountered. Commonly employed alternative approaches to LV lead delivery, including epicardial, trans-septal, or transapical pacing are associated with significant morbidity.

Case summary

A 74-year-old man with ischaemic heart disease, prior mitral valve repair, long-standing atrial fibrillation, and severe symptomatic LV systolic dysfunction, underwent single chamber pacemake

SUBMITTER: McIntosh RA 

PROVIDER: S-EPMC6764584 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature