Ann Med Med Res | Volume 7, Issue 1 | Research Article | Open Access

Effects of a Combination of Fixed and Steerable Sheaths Applied for Catheter Ablation of Left Anterolateral Papillary Muscle-Related Arrhythmias

Lei S^1#, Wang R¹, Wang N², Gao L^1* and Cheng L^2*

¹Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, China ²Department of Cardiology, Songshan General Hospital, China  

^*Correspondance to: Lingyun Gao 

Abstract

Background: Left anterolateral papillary muscle-related arrhythmias are sometimes difficult to ablate. Aim: To investigate the effects of a combination of fixed and steerable sheaths in catheter ablation for left anterolateral papillary muscle-related arrhythmias. Methods: Twenty-nine patients were included and divided into a combined fixed and steerable (Vizigo) sheath group (n=12), a fixed (Swartz) sheath-only group (n=13), and a steerable (Vizigo) sheath only group (n=4). Ablation was performed under intracardiac echocardiography in each patient. The procedural time and success rate were analyzed. Results: In the Vizigo-sheath-only group, rough mapping was very difficult when using the Vizigo sheath. Four patients in these groups were switched to the combined group. Six patients in the Swartz-sheath-only group and none in the combined-sheath group experienced clinical arrhythmia recurrence. The recurrence-free survival rate was greater in the combined-sheath group (100.0% vs. 53.8%, P=0.005). The total procedural time was 122.9 ± 7.0 min for patients in the combined sheath group and 131.0 ± 9.0 min for patients in the Swartz group. There was a significant difference in procedure time between the combined-sheath group and the Swartz-sheath-only group (122.9 ± 7.0 vs. 131.0 ± 9.0, P=0.02). Conclusion: A combination of fixed and steerable sheaths is useful for the ablation of left anterolateral papillary muscle-related arrhythmias.

Keywords:

Ablation; Left anterolateral papillary muscle; Steerable sheath; Ventricular arrhythmias

Citation:

Lei S, Wang R, Wang N, Gao L, Cheng L. Effects of a Combination of Fixed and Steerable Sheaths Applied for Catheter Ablation of Left Anterolateral Papillary Muscle-Related Arrhythmias. Ann Med Medical Res. 2024; 7: 1079..