Shaken baby syndrome is the most common cause of death or serious neurological injury resulting from child abuse. 

“摇晃婴儿综合征”是因虐童行为导致儿童或造成其神经严重受损最常见的原因。

It has been a recognized diagnosis for several decades, though many medical professionals now prefer the term abusive head trauma. 

“摇晃婴儿综合征”作为一种得到认可的诊断结果已有几十年的历史了，不过现在很多医学专家更喜欢用“虐待性头部创伤”这个说法。

Shaken baby syndrome is defined by a constellation of symptoms known as the triad: brain swelling, bleeding on the surface of the brain and bleeding behind the eyes. For years, those three symptoms by themselves were uniformly accepted as evidence that a crime had been committed, even in the absence of bruises, broken bones or other signs of abuse.

这种综合征是由一系列称为“三要素”的症状来定义的：脑肿胀、脑表面出血、视网膜出血。多年来，这三种症状一直被认为是发生了犯罪行为的证据，即便没有淤青、骨折或其他虐待迹象。