儿童体位性心动过速综合征的治疗随访研究

摘要

Objective To compare the short-term and long-term therapeutic effects of oral rehydration salts,metoprolol or midodrine hydrochloride in children with postural tachycardia syndrome (POTS).Methods Two hundred and forty-four children with POTS diagnosed in the First Hospital Peking University of from Dec.2004 to Jan.2013 were followed up in clinics or by telephone.They were divided into oral rehydration salt group (n =75),metoprolol group (n =66) and midodrine hydrochloride group (n =103).The patients were followed up for 3 ～ 100 months.Results After 3 months of treatment,the symptom scoring of the three groups was improved greatly as compared with the baseline data.Therapeutic effect of midodrine hydrochloride group was significantly superior to metoprolol group and oral rehydration salt group (x2 =8.750,P =0.013).One hundred and forty-two out of 244 children were followed up and their head-up tilt test(HUT)was repeated.The HR increment of children in 3 groups became smaller as compared with before treatment (P ＜ 0.05).After follow-up,the symptom scoring was improved greatly as compared with the baseline scoring (P ＜ 0.05).The short-term effect of midodrine hydrochloride group was significantly better than that of metoprolol group or oral rehydration salt group (x2 =8.750,P =0.013).The Kaplan-Meier curves showed that the long-term effect of midodrine hydrochloride group was significantly superior to metoprolol group and oral rehydration salt group (89.3％vs 78.8％,P =0.033;89.3％ vs 76.0％,P =0.002).Conclusion Oral rehydration salts,midodrine hydrochloride or metoprolol were all effective for POTS in children.And the short-term and long-term effect of midodrine hydrochloride might be superior to metoprolol and oral rehydration salts.%目的 比较口服补液盐、美托洛尔及盐酸米多君3种治疗方法对儿童体位性心动过速综合征(postural tachycardia syndrome,POTS)的疗效.方法 对2004年12月至2013年1月确诊的POTS患儿进行电话或门诊随访,共244例,分为口服补液盐组(75例)、美托洛尔组(66例)和盐酸米多君组(103例),随访时间3 ～100个月.结果 各组患儿治疗3个月后症状评分较基础症状评分均明显降低,盐酸米多君的疗效明显优于美托洛尔和口服补液盐(x2=8.750,P=0.013).244例患儿中,共有142例在3个月内进行门诊随诊并复查直立试验.各治疗组卧立位心率差值较治疗前均减小(P＜0.05).各组患儿随访结束时的症状评分较基础症状评分均明显降低(P＜0.05).Kaplan-Meier曲线比较各组患儿在随访期间的治疗效果表明,盐酸米多君的累计有效率明显高于美托洛尔和口服补液盐(89.3％vs 78.8％,P=0.033;89.3％vs 76.0％,P=0.002).结论 与口服补液和美托洛尔比较,盐酸米多君治疗POTS的短期和长期疗效更好.