Errington M, Bloomfield P, Starkey I R, Shaw T R
Royal Infirmary, Edinburgh.
Br Heart J. 1990 Dec;64(6):393-4. doi: 10.1136/hrt.64.6.393.
Audible cardiac murmurs are uncommon and may indicate severe native valve dysfunction. In six patients with bioprosthetic mitral valves audible honking systolic murmurs suddenly developed. Doppler echocardiography showed characteristic striated regurgitant signals. At operation each prosthesis had torn cusps. New audible murmurs and striated Doppler signals originating from mitral bioprosthetic valves are indicators of cusp tears. Recognition of this is important because early detection of prosthetic valve dysfunction may improve subsequent surgical outcome.
可闻及的心杂音并不常见，可能提示严重的自身瓣膜功能障碍。在6例使用生物瓣二尖瓣置换术的患者中，突然出现了可闻及的雁鸣声收缩期杂音。多普勒超声心动图显示出特征性的条纹状反流信号。手术时发现每个瓣膜的瓣叶均有撕裂。源自二尖瓣生物瓣的新出现的可闻及杂音和条纹状多普勒信号是瓣叶撕裂的指标。认识到这一点很重要，因为早期发现人工瓣膜功能障碍可能会改善后续的手术结果。
