简述当腹外疝发生嵌顿时,会出现哪些临床表现?
嵌顿性疝时,疝块突出而不能回纳,肿块张力增大,冲击感消失,下腹部疼痛进行性加重伴恶心、呕吐,停止排便排气等肠梗阻症状,自行回纳的机会较少,如不及时处理,终将发展成绞窄性疝。
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