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Updated: May 9, 2026

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation

Published on: February 26, 2013

[Extensive Atrial Resection for Marked Atrial Enlargement due to Long-standing Persistent Atrial Fibrillation].

Shinji Mizuta¹, Satoshi Sato, Shintaro Nakajima

¹Department of Cardiovascular Surgery, Ichinomiyanishi Hospital, Ichinomiya, Japan.

Kyobu Geka. the Japanese Journal of Thoracic Surgery

|May 7, 2026

Summary

Surgical intervention for severe atrial enlargement and dysfunction in a patient with long-standing atrial fibrillation significantly improved heart function and breathing. The procedure reduced atrial volume and resolved dyspnea, with sustained benefits for three years.

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Published on: February 26, 2013

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Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China

Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China

Published on: February 11, 2022

Area of Science:

Cardiology
Thoracic Surgery
Medical Devices

Background:

A 67-year-old female with a 35-year history of atrial fibrillation presented with severe dyspnea.
Mild mitral regurgitation had led to conservative management, but atrial enlargement caused restrictive ventilatory impairment.

Purpose of the Study:

To evaluate the efficacy of surgical intervention for severe atrial enlargement and dysfunction leading to restrictive ventilatory impairment.
To assess the impact of surgical repair on atrial volume, cardiac function, and respiratory capacity.

Main Methods:

The patient underwent mitral annulus repair, tricuspid annulus repair, maze procedure, and extensive atrial resection under cardiopulmonary bypass.
Pre- and post-operative measurements of atrial volume and vital capacity were compared.

Main Results:

Post-surgery, left atrial volume decreased from 830 ml to 275 ml, and right atrial volume also reduced.
Vital capacity improved from 1.28 L to 1.77 L, indicating resolution of restrictive ventilatory impairment.
The patient maintained sinus rhythm and experienced complete resolution of dyspnea, with sustained improvement for three years.

Conclusions:

Surgical intervention, including extensive atrial resection and rhythm control procedures, is effective in managing severe atrial enlargement and dysfunction.
This approach can significantly improve cardiac function, respiratory capacity, and quality of life in patients with long-standing atrial fibrillation and associated complications.