Abstract:

Objective To investigate the therapeutic efficacy of using multiple mitral valve repair techniques in treating patients with complex mitral insufficiency. Methods Two or more repair techniques were used for treating 76 patients with moderate or severe mitral regurgitation. The closure of mitral valve was examined perioperatively by transesophageal echocardiography (TEE) and valve regurgitation was examined by transthoracic echocardiography (TTE) before discharge. The closure of mitral valve and relevant left heart parameters in short and medium terms were followed up. Results The perioperative TEE results showed that the closure of mitral valve in 9737% (74/76) of patients reached satisfactory outcome after using combined repair techniques. TTE results before discharge were consistent with TEE results. 6-72 months of followup showed that the closure of mitral valve in 9342% (71/76) of patients reached satisfactory outcome with significant higher left ventricular ejection fractions and lower left ventricular end diastolic diameters compared with preoperative data. Conclusion Combined mitral valve repair techniques are efficient for treating complex mitral insufficiency and the choice of combined surgical procedure should be based on pathological changes in patient valves and surgeons mastery of repair techniques.

Key words: combined mitral valve repair, complex mitral insufficiency, therapeutic effect