定义:对乳儿或幼儿,从病历中事先不能估计到的突然死亡,且于死后,经病理学的各项检查,亦不能解释死亡原因者叫婴儿猝死综合征。病因:病因尚不清楚,但目前较易被接受的学说是因呼吸功能不全而致低氧血症,然后死于循环衰竭。Tonkin 最近提出以下假说:幼小乳儿在鼻咽部的解剖学方面——软腭和颅底之间与成人相比是狭窄的,在此基楚上当睡 Definition: For infants or young children, sudden death, which can not be estimated in advance from the medical records, and after death, all the pathological examinations can not explain the cause of death as Sudden Infant Death Syndrome. Etiology: Etiology is not clear, but the more accepted doctrine is hypoxemia due to respiratory insufficiency and then to death from circulatory failure. Tonkin recently put forward the following hypothesis: young children in the anatomy of the nasopharynx - between the soft palate and skull base is narrow compared with adults, on the basis of sleep