Cardiac dimensions and motion shortly after mitral valve surgery.

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概要

• 論文の詳細を見る

• We studied 71 adult patients echocardiographically both before and 2-16 days (mean 8 days) after mitral valve surgery to systematically evaluate the early postoperative changes in cardiac dimensions and motion. The patients were divided into 4 groups: group I with predominant mitral stenosis (MS) (26 patients), group II with predominant mitral insufficiency (MI) (12 patients), group III with MS+MI (16 patients) and group IV with combined mitral and aortic valvular disease (17 patients). After operation the left atrial dimension at endsystole decreased (mean±standard deviation, 56±12mm vs 46±11mm, p<0.001), but did not completely normalize in the majority of patients. The left ventricular dimension at enddiastole decreased in group II from 67±12mm to 54±5mm (p<0.01) and in group IV from 59±13mm to 54±13mm (p<0.01), but increased in group I from 43±8mm to 46±9mm (p<0.05). Mitral EF slope increased from 15±11mm/sec to 52±20mm/sec (p<0.001) after commissurotomy, and decreased from 136±61mm/sec to 66±30mm/sec (p<0.05) after annuloplasty. However, the postoperative means were subnormal in these subgroups. Paradoxical or hypokinetic septal motion occurred in 5/71 (7%) before and 50/71 (70%) after operation.We conclude that: 1) partial normalization of cardiac dimensions and subnormal mitral EF slopes shortly after mitral valve surgery suggest a residual pressure gradient across the mitral valve as well as partial irreversibility of the heart after longstanding mechanical overloading, and 2) postoperative abnormal septal motion, which may be caused by pericardiotomy, can occur after any type of open heart surgery.

• International Heart Journal刊行会の論文

著者

• Lee Ying-shiung

  Division Of Cardiology Department Of Internal Medicine National Taiwan University Hospital

• CHIANG Cheng-Wen

  Division of Cardiology, Chang Gung Memorial Hospital

• CHIANG Cheng-Wen

  Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital

• Hsu Tsu-Shiu

  Division of Cardiology, Chang Gung Memorial Hospital

• CHANG Chau-Hsiung

  Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital

関連論文

• HIS BUNDLE ELECTROGRAM IN RHEUMATIC MITRAL VALVE DISEASE WITH SPECIAL REFERENCE TO BACHMANN'S BUNDLE BLOCK IN P MITRALE
• Acute Myocardial Infarction in a Young Man Complicated With Left Ventricular Thrombi
• Early postoperative echocardiographic studies of atrial septal defects.
• Cardiac dimensions and motion shortly after mitral valve surgery.

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