Martínez-García T, Sobrino J M, Pujol E, Galvez J, Benítez E, Girón-González J A
Department of Internal Medicine, Hospital Juan Ramón Jiménez, Huelva, Spain.
Heart. 2000 Dec;84(6):620-4. doi: 10.1136/heart.84.6.620.
Echocardiographic and Doppler analysis of myocardial mass and diastolic function in patients infected with HIV.
Case-control study.
Tertiary referral centre, Huelva, Spain.
61 asymptomatic patients with HIV infection and 32 healthy controls.
Time motion, cross sectional, and Doppler echocardiographic studies were performed, and left ventricular mass and diastolic function variables determined (peak velocity of early and late mitral outflow and isovolumic relaxation time).
Left ventricular mass index (LVMI) was decreased in patients compared with healthy controls (mean (SD): 76.7 (23.6) v 118.8 (23.5) g/m(2), p < 0.001). Linear regression analysis showed a correlation between LVMI and brachial fat and muscle areas. The ratio of peak velocities of early and late mitral outflow was decreased in HIV infected patients compared with controls (1.19 (0.44) v 1.58 (0.38), p < 0.001). This ratio was exclusively related to haemodynamic variables (heart rate, systolic and diastolic blood pressures). HIV infected patients had a prolonged isovolumic relaxation time (103.0 (10.5) v 72.9 (12.9) ms, p < 0.001). Isovolumic relaxation time was correlated only with brachial muscle area on multivariate analysis.
HIV infected patients had a reduced left ventricular mass index and diastolic functional abnormalities. These cardiac abnormalities are predominantly related to nutritional status.
对感染人类免疫缺陷病毒(HIV)的患者进行心肌质量和舒张功能的超声心动图及多普勒分析。
病例对照研究。
西班牙韦尔瓦的三级转诊中心。
61例无症状HIV感染患者和32名健康对照者。
进行了时间运动、横截面和多普勒超声心动图研究,并测定了左心室质量和舒张功能变量(二尖瓣早期和晚期流出峰值速度及等容舒张时间)。
与健康对照者相比,患者的左心室质量指数(LVMI)降低(均值(标准差):76.7(23.6)对118.8(23.5)g/m²,p<0.001)。线性回归分析显示LVMI与肱部脂肪和肌肉面积之间存在相关性。与对照组相比,HIV感染患者二尖瓣早期和晚期流出峰值速度之比降低(1.19(0.44)对1.58(0.38),p<0.001)。该比值仅与血流动力学变量(心率、收缩压和舒张压)有关。HIV感染患者的等容舒张时间延长(103.0(10.5)对72.9(12.9)ms,p<0.001)。多变量分析显示等容舒张时间仅与肱部肌肉面积相关。
HIV感染患者的左心室质量指数降低且存在舒张功能异常。这些心脏异常主要与营养状况有关。