Objective To summarizes the High-frequency ultrasound imaging and discusses the possible relevant inducement of transitory enteric intussusception in infants and children. Methods Thirty-six cases of transitory enteric intussusception were retrospectively studied, the characteristics of ultrasonic images, clinical data and its inducement were analysed. Results Of 36 cases,33 were single,3 were multiple. The lengths were 1. 9~4.1 cm,with the average (2. 6±0. 3) cm. The diameters were 1. 2~2. 1 cm, with the average (1. 6±0. 1) cm. All the children were reposited by themselves within 24 h. The severity of symptoms were variable. Improper diet, cold, fever, inflammation, viral infection , drug or external stimulus may induce transitory enteric intussusception. Conclusions Transitory enteric intussusception is a common type of intussusception with a variety of possible incentives. It can be diagnosed definitely by high-frequency ultrasound. The characteristics of ultrasound images are small diameter, short length, no hydropic intestinal wall,automatic reduction,recovery without surgery and enema.%目的 总结小儿暂时性小肠套叠高频超声图像特点,分析其可能诱因.方法 回顾性分析超声检查发现的暂时性小肠套叠患儿的资料,共36例,总结超声图像特点,结合临床资料分析其诱因.结果 36例患儿中,单发33例,多发3例,套叠长度1.9～4.1 cm,平均(2.6±0.3)cm,直径1.2～2.1 cm,平均(1.6±0.1) cm.所有患儿在最长24 h内均自行复位.患儿症状表现轻重不一,饮食不适、受凉、发热、炎症、病毒感染、药物或外界刺激等均可能诱发暂时性小肠套叠.结论 暂时性小肠套叠是一种常见的特殊类型肠套叠,具有多种可能诱因,高频超声可明确诊断.其超声影像特点为靶环形直径小,套叠长度短,无肠壁水肿,可自行复位,无需手术及灌肠治疗.
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