...性质及蒂的有无和长短。瘤体大蒂长者易致房室瓣口狭窄或关闭不全,发生血流动力学的改变,出现一系列的症状,瘤体小蒂短者,可长期无症状。一、症状(一)梗阻症状 早期常有心悸、气短、运动耐力减低,左心房粘液瘤如梗阻肺静脉或二尖瓣口可产生酷似二尖瓣病变...
...on YBB00082003 Test Methods of Gas Permeability, this article presents a detailed introductionto the methods of gas ...
...He who acts, spoils; He who grasps, loses. People often fail on the verge of success; Take care at the end as at the ...
... can overflow starts with a clod of earth; A journey of a thousand miles begins at the spot under one’s feet. Therefore ...
...上颌窦癌(carcinoma of the maxillary sinus)是耳鼻咽喉科常见的恶性肿瘤之一,占耳鼻咽喉各部恶性肿瘤总数的20%。以鳞状细胞最多见,其次是移行细胞癌、基底细胞癌、腺癌等,肉瘤则较少见。多发生于40岁以上的男性...
...耳鼻咽喉创伤(traumatic injuries of the ear,noseand throat)平时、战时均可见到,对越自卫反击战中不完全统计耳鼻咽喉伤员占入院总务员的5.7%。耳鼻突出于头面部,容易受外伤。战时火器的爆震压力波对...
...鼻窦创伤(traumatic injuries of the nasalsinus )因上颌窦及额窦位置较表浅,受创伤的机会较多,以上颌窦最多,额窦次之,筛窦较少,蝶窦因位于深处更为少见。平时以工伤及交通事故;战时各种火器伤,以枪弹及弹片...
...坎上 艮下 “蹇”:利西南,不利东北。利见大人,贞吉。 《彖》曰:“蹇”,难也,险在前也。见险而能止,知矣哉!“蹇,利西南”,往得中也。“不利东北”,其道穷也。 “艮”,东北也;“坎”,北也。难在东比,则西南者无难之地也。君子将有意乎犯难...
...咽喉创伤(traumatic injuries of the pharynxand larynx)常为颈部外伤所累及,常合并颈段气管、食管伤。咽喉与甲状腺、颈部大血管、神经、颈椎等重要器官邻近,如同时受伤,可以出现大出血、休克、窒息等危象...
...全(Insuficiency of the papillary Muscle) 二尖瓣环钙化(Calcification of Mitral valvular Ring) 心脏粘液瘤(Myxoma of the Heart) ...
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