作者利用透射电镜对8例婴儿急死综合征死亡及4例其他原因死亡的婴儿的颈动脉体进行观察。发现婴儿急死综合征与非婴儿急死综合征死亡的婴儿,其颈动脉体的主细胞形态结构相似。两组检材的主细胞内均含大量致密颗粒,其大小及数量无明显不同。认为有必要进一步应用生化技术对婴儿急死综合征颈动脉体主细胞中致密颗粒物质进行定性和定量研究。 The authors used transmission electron microscopy of eight cases of infant death syndrome and death of 4 other causes of carotid body was observed in infants. Found that infants with acute infant death syndrome and non-infant acute death syndrome infants, the main carotid body morphology and structure similar. The main cells of two samples contain a large number of dense particles, the size and number of no significant difference. It is considered necessary to further apply biochemical techniques to qualitatively and quantitatively study the dense particulate matter in the main carotid body of infant’s acute death syndrome.