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Co-Authors: Guedes MA, SOUSA JS, Brandão CMA, Vieira M, Stolf NAG.
BACKGROUNDS:
Acquired giant left atrium is a rare condition often associated with rheumatic mitral valve disease and there is no consensus related to its surgical correction. Giant left atrium may be congenital or acquired. Surgical resection is the treatment of choice, even in asymptomatic patients, because of the risks of rupture, systemic embolism, heart failure, arrhythmia, or extrinsic compression of trachea or esophagus.
OBJECTIVE:
Describe the early experience of giant left atrium correction with the tangential triangular resection technique.
METHODS:
Were included 6 patients with giant left atrium submitted to tangential triangular resection technique. The technique consists in 3 left atrium diamond shape resection, one side between pulmonary veins, one side in the way of the left atriotomy and the last one in the direction of mitral annulus, forming a triangular shape. Of them, 4 patients were female and the age ranged between 22 to 51 years old. Preoperatively, left atrium diameter ranged between 69 to 134mm. There were 3 redo cases, one of them 2nd reoperation surgery. Preoperative cardiac rhythm was atrial fibrillation in 5 cases. Left atrial fibrosis and thickness were found in all anatomic pathologic specims.
RESULTS:
There was no in-hospital death. Conservative mitral surgery was done in 3 cases. Postoperatively, left atrium diameter ranged between 40 to 60mm. The left atrium reduction ranged between 28 to 70%. Sinus rhythm was achieved in all cases in in-hospital period.
CONCLUSIONS:
The tangential triangular resection can be an option to treat the giant left atrium.