Work

Algorithms for locating accessory pathways: How far should we trust?

Year: 2025

Type: article

Abstract: Algorithms for locating accessory pathways (APs) are widely used in planning catheter ablation for patients with ventricular preexcitation. These algorithms typically rely on characteristics of the delta wave and QRS complex to predict AP location. However, factors such as anatomical variations, age, the presence of multiple APs, and patient biotype can lead to inaccuracies. We present the case of a patient with ventricular preexcitation but no comorbidities, whose electrocardiogram (ECG) suggested an AP location entirely different from that predicted by standard algorithms. This discrepancy led to a change in the catheter ablation strategy, which was successfully performed via a retrograde aortic approach.

Source: Journal of Electrocardiology

DOI: 10.1016/j.jelectrocard.2025.153936

Authors: Anna Clara de Melo Sousa Ferro, Thiago Baccili Cury Megid, Vinicius Padovese, Eduardo Palmegiani, Adalberto M. Lorga Filho

Institutions: Hospital de Base, Instituto de Moléstias Cardiovasculares

Language: English

Topic: Cardiac Arrhythmias and Treatments

Subfield: Cardiology and Cardiovascular Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: hybrid

Estimated APC paid: $2,890