大约85％外表似乎正常的婴儿发生不明原因的猝死,尸检也未能明确死因。在这些婴儿中常见病毒感染,如呼吸道病毒、肠道病毒,但它们仅引起轻微的炎症,可能系促发因素,不足以解释外表似乎健康婴儿的死亡原因。其余15％可见多种致死病灶,包括病毒性心肌炎、支气管炎、先天性心脏病、婴儿肉毒中毒、结节性硬化、败血症等。作者报告 Approximately 85% of seemingly normal babies have unexplained sudden death and autopsy has not been able to identify the cause of death. Common viral infections in these infants, such as respiratory viruses and enterovirus, cause only mild inflammation, which may be a contributing factor, not enough to explain the cause of death that appears to be healthy babies. The remaining 15% can be seen a variety of lethal lesions, including viral myocarditis, bronchitis, congenital heart disease, infant botulism, tuberous sclerosis, sepsis and so on. Author’s report