This case highlights a specific programming challenge that can lead to intermittent loss of capture in patients with His bundle pacemakers.
Identifies a programming challenge in His bundle CRT with LV-port placement; leaves open questions on optimal configurations and monitoring protocols.
His bundle pacing is gaining popularity in patients receiving cardiac resynchronization therapy (CRT) devices.1,2 The present case highlights a unique challenge in patients with a His bundle lead in the left ventricular (LV) port who are programmed to subthreshold right ventricular (RV) outputs to promote His bundle–only pacing.
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Padala et al. (2017) studied this question.
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