左心房容积指数与血管迷走性晕厥的关系  

Relationship of left atrial volume index and vasovagal syncope

作　　者：李虹彦[1] 王晓娜[2] 赵丽茹[2] 郭放[1] 孙景辉[2] 于侠[2] 

机构地区：[1]吉林大学第一医院护理部,长春130021 [2]吉林大学第一医院小儿心血管科,长春130021

出　　处：《中华实用儿科临床杂志》2014年第13期990-992,共3页Chinese Journal of Applied Clinical Pediatrics

基　　金：“十二五”国家科技支撑课题（2012BA103B03）

摘　　要：目的 通过检测左心房容积指数（LAVI）,探讨心脏容积及功能与血管迷走性晕厥（VVS）发生机制的关系.方法 选取2012年1月1日至12月31日在吉林大学第一医院就诊并诊断为VVS的患者68例为观察组,健康对照组病例选自本院同期健康体检的儿童及青少年60例.所有患者均给予心脏彩超、直立倾斜试验,测量身高、体质量,及胸正位片,测量LAVI及心胸比例.结果 观察组与健康对照组年龄分别为（12.19±2.01）岁及（12.15±2.00）岁,2组年龄比较差异无统计学意义（t=0.10,P＞0.05）.观察组男23例,女45例,健康对照组男31例,女29例,2组性别构成比比较差异有统计学意义（χ^2 =4.16,P＜0.05）.观察组与健康对照组LAVI值分别为（21.23 ±2.04） mL/m^2及（23.45±3.01） mL/m^2,2组比较差异有统计学意义（t =4.29,P＜0.05）;VVS混合型、VVS血管抑制型和VVS心脏抑制型LAVI值分别为（21.41±2.98） mL/m^2、（21.06±2.59） mL/m^2和（21.23±3.22） mL/m^2,VVS混合型、VVS血管抑制型与健康对照组LAVI值比较差异有统计学意义（t =3.27、3.36,P均＜0.05）;VVS心脏抑制型与健康对照组LAVI值比较差异无统计学意义（t=1.61,P＞0.05）.观察组与健康对照组心胸比例分别为0.43±0.07及0.46±0.06,2组比较差异有统计学意义（t=3.05,P＜0.05）.结论 VVS的发生机制与左心的大小及功能有关;心胸比例偏小、LAVI小的儿童及青少年更容易发生VVS.Objective To explore the relationship between the volume and function of the heart and the pathogenesis of vasovagol syncope （VVS） through the detection of the left atrial volume index（LAVI）.Methods The 68 cases in the observation group were diagnosed as VVS and hospitalized in the First Hospital of Jilin University from Jan.1 to Dec.31 in 2012.The 60 cases in the control group were children and adolescents receiving healthy physical examinations during the same period.All the patients were given the examination of heart color Doppler ultrasound,head up tilt test（HUT）,body height,body mass,chest X-ray and accounted the LAVI and cardiothoracic ratio was accounted.Results The average age in the observation group and the control group was（12.19 ± 2.01） and（12.15 ± 2.00） years old,respectively.And there was no statistically significant difference in age between these two groups （t =0.10,P 〉0.05）.There were 23 boys and 45 girls in the observation group,and 31 boys and 29 girls in the control group.There was statistically significant difference in the ratio of gender composition between these two groups （x2 =4.16,P 〈 0.05）.The LAVI values in these two groups were （21.23 ± 2.04） mL/m^2 and （23.45 ± 3.01） mL/m^2,respectively.There was statistically significant difference between two groups（t =4.29,P 〈 0.05）.The LAVI values in VVS mixed inhibition （VVS-MI）,VVS vascular inhibition （VVS-VI） and VVS cardiac inhibition （VVS-CI） were （21.41 ± 2.98） mL/m^2,（21.06 ± 2.59） mL/m^2 and（21.23 ± 3.22） mL/m^2,respectively.There were statistically significant differences between VVS-MI or VVS-VI and the control groups（t =3.27,3.36,all P 〈 0.05）,but there was no statistically significant difference between VVS-CI and control groups（t =1.61,P 〉 0.05）.The cardiothoracic ratio were 0.43 ± 0.07 and 0.46 ± 0.06 in the observation group and the control group,respectively,and there was statistically significant difference between these two groups（t =3.

关 键 词：血管迷走性晕厥 左心房容积指数 心胸比例 

分 类 号：R541[医药卫生—心血管疾病]