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Pacemaker-Mediated Tachycardia Triggered by Phrenic Nerve Stimulation During Cryoballoon Ablation of Atrial Fibrillation: A Case Report

Year: 2025

Type: article

Abstract: Pacemaker-mediated tachycardia (PMT) - also known as endless loop tachycardia - is a well-known phenomenon in dual-chamber pacemakers programmed in atrial tracking modes, such as DDD or VDD. The initiating triggers of PMT are also well recognized and most frequently include ventricular premature beats (VPBs) or loss of atrial capture. In this report, we describe a case where an unusual trigger - such as a stimulus delivered in the superior vena cava (SVC) for testing phrenic nerve capture - initiated PMT.

Source: Cureus

DOI: 10.7759/cureus.94198

Authors: Giorgi Papiashvili, Mirian Jintchvelashvili

Language: English

Topic: Cardiac pacing and defibrillation studies

Subfield: Cardiology and Cardiovascular Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: diamond

OpenAlex ID: W4414985795

FWCI:

Cites: 10

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