The «labyrinth» operative procedure with the left atrium plasty in correction of isolated failure of a mitral valve

Objective. To study the possibilities of the «labyrinth» procedure in combination with the left atrium reduction. Materials and methods. Into the investigation 261 patients, suffering isolated failure of a mitral valve Stage IV, operated in the National Institute of Cardio-Vascular Surgery n. a. M. M. Amosov, were included. The left atrium plasty with objective to reduce and prevent the waves spread re-entry was performed in 139 (53.2%) patients. Fragmentation in the left atrium was made in regime of low radiofrequencies (25 - 35 Вт) in accordance to schemes of Maze ІІІ, ІV. Results. In the hospital period 5 patients died (the hospital lethality have constituted 1.9%). While discharge from the hospital the sinus rhythm was noted in majority of the patients after the left atrium plasty, than in the alternative group - in 119 (85.6%) of 139 and in 79 (64.8%) of 122 patients, accordingly. Conclusion. The «labyrinth» procedure in combination with the left atrium plasty owes significant clinical advantages, including restoration and persistence of the sinus rhythm in patients, suffering pathology of a mitral valve.