频谱多普勒超声检测左心室舒张功能评价中青年人群亚健康状态的价值  

Significance of spectral Doppler ultrasound in evaluating left ventricular diastolic function in middle-aged people with sub-health status

作　　者：朱鸿[1] 杨通琴[1] 张礼宪[1] 高崇于[1] 王俊祎 

机构地区：[1]贵阳中医学院第二附属医院超声科,贵州省550003

出　　处：《江苏医药》2015年第3期313-314,共2页Jiangsu Medical Journal

摘　　要：目的探讨彩色频谱多普勒超声检测左心室舒张功能评价中青年人群亚健康状态的应用价值。方法健康体检中青年人400例,年龄30-50岁。其中,符合美国疾病控制与预防中心对亚健康状态诊断标准者200名(亚健康组),健康者200名(健康组)。采用彩色超声心动图检查,分析两组二尖瓣口血流频谱的左心室等容舒张时间(IVRT)、舒张早期血流减速时间(DT)、舒张早期血流速度峰值(E)、舒张晚期血流速度峰值(A)、E/A比值。结果亚健康组二尖瓣口血流指标异常的发生率90.0%(180/200),高于健康组的2.5%(5/200)(P<0.01)。亚健康组的IVRT、DT和A峰均高于健康组,E峰低于健康组(P<0.01),E/A比值小于健康组(P<0.01)。结论亚健康状态的中青年左心室舒张功能减低,存在心血管系统器质性损害的风险。Objective To investigate the significance of spectral Doppler ultrasound in evaluating left ventricular diastolic function in middle-aged people with sub-health status. Methods A total of 400 people aged 30-50 years old underwent physical examination with spectral Doppler ultrasound,of whom 200 cases were in sub-health status（group A） and 200 cases were in healthy status（group B） diagnosed according to the criteria of The US Center for Disease Control and Prevention. Data of mitral valve flow spectrum were analyzed and compared. Results The incidence rate of abnormal mitral valve flow spectrum was significantly higher in group A than that in group B [90.0% （180/200） vs. 2.5% （5/200）] （P〈0. 01）. Left ventricular isovolumetric relaxation time, early diastolic blood flow deceleration time, peak early diastolic blood flow velocity and peak late diastolic blood flow velocity were higher, the E/A ratio was less, in group A than those in group ]3 （P^0. 01）. Conclusion The left ventricular diastolic function is reduced in middle-aged people with sub-health status indicating that the risk for organic damage of cardiovascular system exists.

关 键 词：亚健康 频谱多普勒超声 左心室舒张功能 

分 类 号：R540.45[医药卫生—心血管疾病]