病态窦房结综合征大多发生在成人,儿童患者罕见,房内手术尤其是大血管错位Mustard手术损伤窦房结或影响其血供时可发生此征,小儿各种先天性心脏畸形也可并发此征;偶尔,此综合征可出现在无器质性心脏病的小儿中,其病因不明。本文报道5例患儿,男3例,女2例,出现脑症状或心动过缓时的年龄为1天～7岁,均无器质性心脏病。所 Sick sinus syndrome mostly occurs in adults and children are rare, room surgery, especially large vessel malformations Mustard surgery to damage the sinus node or affect the blood supply can occur when this sign, a variety of congenital heart malformations in children can also be complicated Occasionally, this syndrome can occur in children without organic heart disease, the etiology is unknown. This article reports 5 cases of children, 3 males and 2 females, brain symptoms or bradycardia when the age of 1 days to 7 years, no organic heart disease. The