Aim of investigation is to research possibilities of intraoperative renewal of sinus rhythm by proposed method during mitral valve replacement (MVR). In analyzed group are included 161 patients with isolated mitral valve disease in IV stage who were operated in Institute. In 155 patients underwent MVR and 6 mitral valve`s plasty with operation Labyrinth. Plasty of left atrium (LA) was performed in 119 (79,3%) patients for prevention spread of re-entry waves. Operation of LA’s fragmentation (Maze-3,4) was performed in all cases by radio-frequency method (25–30 watt), and also with ligation and resection of LA`s auricle. Among 161 operated patients 3 patients died on a hospital stage. Renewal of sinus rhythm in group pts with LA’s plasty was in 86,7%, than is higher than in alternative group (64,5% (р<0,05)). MVR with operation Maze allows successfully renew sinus rhythm on a hospital stage and stabilize it well during half-year after operation.

Узагальнений досвід хірургічного лікування 520 пацієнтів, яким здійснено хірургічну корекцію недостатності мітрального клапана (МК) внаслідок порушення цілісності хордально-папілярного апарату. Хворі послідовно оперовані в умовах штучного кровообігу (ШК) за період 2006 - 2015 рр. Пластика МК виконана у 201 пацієнта, протезування МК (ПМК) - у 319. Віддалені результати проаналізовані у 487 (93,8%) пацієнтів у строки спостереження у середньому (6,3 ± 2,6) року. Ключові слова: пластика мітрального клапана; протезування мітрального клапана; хордально-папілярний апарат; віддалені результати.

The authors present their results concerning surgical treatment of 520 patients using surgical correction of mitral insufficiency due to integrity damage of chordal-papillary continium. All the patients were operated using cardiopulmonary bypass in the period from 01.01.2006-31.12.2015 in different departments of the Mykola Amosov National Institute of Cardiovascular Surgery (Academy of Medical Sciences of Ukraine). All the patients examined were divided into two groups – group A (with mitral valve plastics) and group B (with mitral valve replacement, MVR). Long-term results became known for 487 patients (93.8% of patients discharged).