血液指标与儿童血管迷走性晕厥复发的关系

目的 探究实验室血液指标与儿童血管迷走性晕厥（VVS）复发的关系。方法 回顾性分析2014 年1 月—2017 年1 月青海大学附属医院收治的82 例VVS 患儿临床资料，并分为复发组21 例（患儿治疗后1 年内情复发）和非复发组61 例（患儿治疗后1 年内无复发）。单因素和Logistic 多因素分析患儿VVS复发相关因素。结果 单因素分析结果显示，复发组患儿的体重指数（BMI）、血红蛋白（Hb）、血小板计数（PLT）及平均红细胞血红蛋白含量（MCH）高于非复发组（P <0.05）；复发组中有晕车史和有阳性家族史的患儿所占比例较高（P <0.05）。Logistic 多因素分析结果显示，高Hb、高PLT、高MCH、合并晕车史及合并阳性家族史为患儿VVS 复发的危险因素（P <0.05）。结论 实验室血液指标中Hb、PLT 及MCH 升高为患儿VVS 复发的危险因素，且合并晕车史、合并阳性家族史患儿复发率也较高，应对该类患儿加强监控，以改善预后。

Relationship between blood parameters and recurrence ofvasovagal syncope in children

Objective To explore the relationship between laboratory blood parameters and recurrence ofvasovagal syncope (VVS) in children. Methods The clinical data of 82 children with vasovagal syncope in ourhospital from January 2014 to January 2017 were analyzed retrospectively. 21 cases of children relapsed within 1 yearafter treatment were divided into the recurrence group, and the other 61 children without recurrence within 1 yearafter treatment were divided into non-recurrence group. Univariate and Logistic multivariate were used to analyzerelapse-related factors in children with VVS. Results The results of univariate analysis showed that the body massindex (BMI), hemoglobin (Hb), platelet count (PLT) and mean erythrocyte hemoglobin (MCH) in recurrence groupwere higher than those in non-recurrence group, but BMI was lower (P < 0.05). The proportion of children withmotion sickness history and positive family history in recurrence group was higher than that in non-recurrence group,and the difference was statistically significant (P < 0.05). Logistic multivariate analysis showed that high Hb, highPLT, high MCH, history of motion sickness and positive family history were risk factors of recurrence of childrenwith VVS (P < 0.05). Conclusions Increasing Hb, PLT and MCH are the risk factors of recurrence of children with VVS. The children with motion sickness and positive family history have high risk of recurrence. To improve theprognosis, we should strengthen the surveillance of these children.