Complete Endoatriectomy of Coconut Left Atrium with Mitral Valve Replacement and Tricuspid Repair
Abstract
We report an exceptionally rare case of “Coconut Left Atrium” (LA) presenting with severe mitral stenosis and tricuspid regurgitation. The patient developed acute, refractory symptoms necessitating urgent surgical intervention with mitral valve replacement and tricuspid repair. During the initial surgery, no cleavage plane could be identified in the interatrial septum (IAS), prompting a plan for balloon mitral valvotomy via a surgically created septal access. However, this plan was abandoned upon discovery of a newly formed soft thrombus during reoperation. With limited options remaining, a complete endoatriectomy of the heavily calcified left atrium and IAS was successfully accomplished.
Fields of Study & Subjects
Congenital Heart Disease Studies
Cardiac Valve Diseases and Treatments
Cardiac Arrhythmias and Treatments
Publication details
- Journal / source
- Journal of the Heart Valve Society
- Volume
- 3
- Issue
- 1
- Pages
- 57–60
- Publication date
- 1 January 2026
- Language
- EN