RESUMO
We report a case of surgical treatment for mitral valve papillary fibroelastoma which is an uncommon and rare benign tumor. The patient was a 62-year-old woman who had TIA (paralysis of left leg) and was admitted with the diagnosis of cardiac tumor. Before operation, the tumor was detected in the left atrium two-dimensional echocardiography, attached to the anterior leaflet of the mitral valve. At operation, the tumor was 11×8mm in size, with a yellow jelly-like and fragile appearance, attached to the same position as indicated by echocardiography. As the tumor occupied over one third of the leaflet, it was excised including all the anterior leaflet of the mitral valve and a prosthetic valve was replaced leaving the posterior leaflet intact. The tumor was diagnosed as papillary fibroelastoma by pathological examination. The postoperative course was uneventful.
RESUMO
The combined method of antegrade and retrograde administration of cardioplegic solution has been established for coronary bypass surgery. We applied this technique in patients undergoing aortic and mitral valve surgery. Between January 1989 and December 1990, 28 patients underwent both aortic and mitral valve replacements. To compare the myocardial protective effect according to the method of cardioplegic administration, they were divided into two groups; Ante group (antegrade, <i>n</i>=15) and Retro group (combined method of antegrade and retrograde, <i>n</i>=13). Aortic occlusion time and cardiopulmonary bypass time were shorter in Retro group. The mean interval of each cardioplegic administration was significantly shorter in Retro group (Ante group, 29.2±4.8min vs Retro group, 24.0±3.8min; <i>p</i><0.01). These results suggest that retrograde cardioplegia method never disturbs ongoing operation during each delivery while antegrade method often does. Serum CPK-MB at 6hr of reperfusion tended to be less in Retro group (Ante group, 120±80IU/<i>l</i> vs Retro group, 78±50IU/<i>l</i>; <i>p</i>=0.09). The results of postoperative cardiac functions were the same in both groups. We therefore believe that this method is an optimal strategy even in patients with valvular heart disease.