1442例儿童幽门螺杆菌感染状况及相关性疾病分析

了解天津市儿童幽门螺杆菌染状态，探讨儿童Ｈｐ感染状况与相关性疾病的关系。方法采用ＥＬＩＳＡ方法对１４４２例儿童进行血清抗Ｈｐ－ＩｇＧ检测，对其中有消化道症状的９１６例行胃镜检查，同时取胃窦粘膜３块分别作病理组织学检查及快速尿素酶、改良Ｇｉｅｍｓａ染色找Ｈｐ菌，取胃液检测Ｈｐ－ＰＣＲ。

Analysis on Helicobacter pylori infection and its related diseases in 1 442 children in Tianjin city

OBJECTIVE: The aim of this study was to investigate the prevalence of Helicobacter pylori (Hp) infection in children in Tianjin and to study the relationship between the Hp infection and its related diseases. METHODS: (1) Serologic examination for Hp - IgG; (2) Rapid urease test for Hp (Hp - Rut); (3) Giemsa staining for Hp; (4) Gastric fluid examination for Hp by PCR. Hp infection were diagnosed by at least two criteria. RESULTS: (1) Of the 1 442 children, 651 were Hp - IgG positive. The total positive rate was 45.15%, Positive rates of Hp - IgG among children under the age of 1 year, 3 years, 6 years, 10 years and to 14 years were 11.19%, 19.23%, 44.21%, 54.20% and 61.46%, respectively. (2) Positive rates of Hp - IgG were 31.18% (164/526) and 53.17% (48/916) in asymptomatic children and in patients with gastrointestinal symptoms. The rate was significantly higher in the later group (P < 0.005). (3) Hp infection rate in patients with duodenal ulcer (DU) was 90.76%, higher than that in other gastrointestinal diseases. (4) Histological examination showed that Hp infection rates were 33.20% and 83.97% in mild and moderate or severe gastritis, respectively. CONCLUSIONS: (1) The prevalence of Hp infection in children in Tianjin was high. (2) Rate of Hp infection increased with age and Hp infection rate was higher in children with gastrointestinal symptoms than with asymptomatie. (3) There was a high correlation in children with gastroduodenal diseases and Hp infection especially with DU. (4) Hp positive rate correlated with the pathohistologic severity of gastritis.