| 词汇 | aneurysm |
| 释义 | aneurysm noun[ C ] medical specializeduk /ˈæn.jə.rɪ.zəm/ us /ˈæn.jɚ.ɪ.zəm/ a swollen area on the wall of an artery动脉瘤 The essential feature of a traumatic aneurysm is that it is produced by some form of injury which divides all the coats of the artery. The risk of gangrene is diminished by a course of digital compression of the femoral artery, before operating on the aneurysm. The rupture of a popliteal aneurysm, however, by compressing the vein and the articular branches, usually determines gangrene. They usually heal rapidly, but, like punctured wounds, are liable to be followed by the formation of an aneurysm. When the bleeding is profuse, however, the parts beyond the aneurysm become greatly swollen, livid, and cold, and the pulse beyond is completely lost. Examples of aneurysmaneurysm Histological examination showed a normal atrioventricular node and bundle, adjacent to the aneurysm. The aneurysms ruptured into the right ventricle in 73%, into the right atrium in 27% and into the left ventricle in less than 1%. Besides these, aneurysms are seen in the transition from muscular to elastic segments in such arteries as the celiac and mesenteric. Similar aneurysms are also seen in the large muscular arteries themselves outside the major organs. Approximately 15-25% of children who acquire the disease develop aneurysms of one or more coronary arteries following the acute illness. The most important finding is the presence of aneurysms of the coronary arteries, which have their origins in arteritis. Those with descending aortic aneurysm underwent conduit placement, and those with valve disease underwent repair or replacement. There was a saccular aneurysm of 5 mm diameter in the proximal thoracic descending aorta, two millimeters distal to the patent arterial duct. In the other four patients with no symptoms of ischemia, the therapy was undertaken when thrombus was detected in a coronary aneurysm. The cost-effectiveness of early surgery versus watchful waiting in the management of small abdominal aortic aneurysms. The initial reports dealt predominantly with the possibility of non-invasively detecting coronary aneurysms rather than with the specificity and sensitivity of the echocardiographic technique. All patients had coronary changes, and six patients had giant aneurysms and severe stenotic lesions in each coronary arteries. Duration and severity of arterial hypertension are likely to be important risk factors in formation of aneurysms, remote from the site of repair. She presented 4 weeks after reoperation with fresh haemoptysis and was subsequently found at delayed emergency surgery to have a leaking false aortic aneurysm. The haemoptysis in this case could have been due to erosion of a small vessel of the compressed lung by the false aneurysm. See all examples of aneurysm 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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