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  • Title: [Surgical treatment for ischemic mitral regurgitation in patients with poor left ventricle].
    Author: Hayase S, Yano Y, Ogawa K, Fujita K, Yuasa T, Shirota K, Kidokoro H, Hattori T.
    Journal: Kyobu Geka; 1995 Apr; 48(4):259-63; discussion 263-7. PubMed ID: 7715108.
    Abstract:
    Results of CABG with and without mitral valve surgery were analyzed retrospectively in 81 patients with ischemic mitral regurgitation (MR) to determine the effects of severity of MR and surgical treatment on survival. Seven of 81 patients had severe MR (more than Sellers III degrees/IV). Of these 7 patients, 5 patients underwent mitral valve replacement and 1 patient underwent mitral annuloplasty. Only one patient did not undergo valve surgery. This patient had slight improvement of the functional classification after CABG, but died of congestive heart failure 5 years after surgery. There were 3 hospital deaths and 5 late deaths in 81 patients. Among the 29 patients with poor left ventricle (EF < or = 0.3), there were 3 hospital deaths and 2 late deaths. Postoperatively, 12 patients had Sellers II degrees/IV or III degrees/IV MR. In 4 patients of these 12, the severity of MR was aggravated in comparison with the preoperative severity. Three of these 4 patients had perioperative myocardial infarction (PMI). IABP was utilized preoperatively in patients with poor left ventricle to keep the stable hemodynamics and prevent PMI. In these patients, there were no PMI, no hospital death, or no aggravation of MR. In conclusion, patients with Sellers I degree/IV or II degrees/IV MR require CABG only, whereas those with Sellers III degrees/IV or IV degrees/IV MR need CABG combined with mitral valve surgery. Preoperative use of IABP is useful for preventing PMI and aggravation of MR in patients with poor left ventricle.
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