| 词汇 | mitral-valve |
| 释义 | mitral valve noun[ Cusually singular ] anatomy specializeduk /ˈmaɪ.trəl ˌvælv/ us /ˈmaɪ.trəl ˌvælv/ the valve (= a structure that opens and closes) in the heart that stops blood from returning into the left atrium (= upper space) from the left ventricle (= lower space)二尖瓣（心脏内部不断开关的瓣膜结构，可阻止血液从左心室回流到左心房） Synonym bicuspid valvespecialized Compare tricuspid valvespecialized See also valve The circulatory system & blood ABO accessory pathway adventitia adventitial ANA auricle bicuspid valve corpuscle femoral artery glomus granulocyte haematogenous haemic phagocyte portal system precava pulmonary artery pulmonary vein pulmonic tricuspid valve Examples of mitral valvemitral valve The diameter of the isthmus was found to be smaller, and the size of mitralvalve annulus larger, than previously published values. A tiny imperforate mitralvalve and a rudimentary left ventricle were found. Two years after surgery the child is clinically well, with no signs of pulmonary hypertension and with normal flow through the mitralvalve. It is generally acknowledged that the inflammatory process involves most frequently the mitralvalve. Congenital mitralvalve disease associated with coarctation of the aorta. The principal problem associated with repair of the mitralvalve in children is long-term durability. Echocardiography showed poor systolic function of her systemic (morphologically right) ventricle, and identified new severe regurgitation of her right-sided mitralvalve. The attachment extended to the left coronary leaflet of the aortic valve, and to the ventricular surface of the aortic leaflet of the mitralvalve. There does not appear to be any residual ventricular septal defect but the mitralvalve is "masked" by the patch material. There was no systolic anterior motion of the mitralvalve, but mild prolapse of an aortic leaflet was seen. The ventricular septal defect was directly related to the mitralvalve. Instead, they represented gross calcification of the mitralvalve, and of the papillary muscles, as a consequence of viral myocarditis. Increasingly, we are debulking the coronary sinus which we feel may be partially obstructive to the mitralvalve. Since 1991, mitralvalve allografts have been used in our institution to replace the mitralvalve. Other abnormalities were: patent ductus arteriosus, septal hypertrophy, mitralvalve prolapse and pericardial effusion (one case each). See all examples of mitral valve These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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