Suppr超能文献

原发性高血压患者左心室舒张功能障碍频谱的多普勒超声心动图评估

Doppler echocardiographic evaluation of the spectrum of left ventricular diastolic dysfunction in essential hypertension.

作者信息

Ren J F, Pancholy S B, Iskandrian A S, Lighty G W, Mallavarapu C, Segal B L

机构信息

Cardiac Ultrasound Laboratory, Philadelphia Heart Institute, Presbyterian Medical Center, PA 19104.

出版信息

Am Heart J. 1994 Apr;127(4 Pt 1):906-13. doi: 10.1016/0002-8703(94)90560-6.

Abstract

Left ventricular topography and diastolic and systolic functions were studied in 41 patients with essential hypertension (group 1) and 33 age-matched normal adults (group 2) by Doppler echocardiography. In group 1 54% had LV concentric hypertrophy, 19% had combined concentric hypertrophy and eccentric remodeling, and 27% had concentric remodeling. LV systolic function was within the normal range. In concentric LV remodeling, the EDV was significantly decreased (compared with group 2) (84 +/- 15 vs 130 +/- 38 ml, p < 0.05), whereas the NPFR was normal (2.89 +/- 0.65 vs 3.22 +/- 0.83 sec-1, p = NS). In concentric hypertrophy, LV end-diastolic and end-systolic volumes were normal, but the NPFR was decreased (2.04 +/- 0.59 sec-1). Patients with concentric hypertrophy and eccentric remodeling had the largest end-diastolic (140 +/- 48 ml) and end-systolic (62 +/- 32 ml) volumes and the lowest NPFR (1.67 +/- 0.69 sec-1). The LVMI inversely correlated with the NPFR (r = -0.89, p < 0.0001). Thus LV concentric hypertrophy with or without concentric or eccentric remodeling is seen in patients with systemic hypertension. A decrease in peak filling occurs early in the evolution of hypertensive heart disease and is observed even when systolic performance is still normal.

摘要

通过多普勒超声心动图对41例原发性高血压患者(第1组)和33例年龄匹配的正常成年人(第2组)的左心室形态以及舒张和收缩功能进行了研究。在第1组中,54%的患者有左心室向心性肥厚,19%的患者有向心性肥厚合并离心性重塑,27%的患者有向心性重塑。左心室收缩功能在正常范围内。在向心性左心室重塑中,舒张末期容积显著降低(与第2组相比)(84±15 vs 130±38 ml,p<0.05),而充盈率正常(2.89±0.65 vs 3.22±0.83秒-1,p=无显著差异)。在向心性肥厚中,左心室舒张末期和收缩末期容积正常,但充盈率降低(2.04±0.59秒-1)。有向心性肥厚合并离心性重塑的患者舒张末期容积(140±48 ml)和收缩末期容积(62±32 ml)最大,充盈率最低(1.67±0.69秒-1)。左心室质量指数与充盈率呈负相关(r=-0.89,p<0.0001)。因此,在系统性高血压患者中可见有或无向心性或离心性重塑的左心室向心性肥厚。在高血压性心脏病的演变过程中,早期就会出现峰值充盈降低,甚至在收缩功能仍正常时也可观察到。

文献检索

告别复杂PubMed语法,用中文像聊天一样搜索,搜遍4000万医学文献。AI智能推荐,让科研检索更轻松。

立即免费搜索

文件翻译

保留排版,准确专业,支持PDF/Word/PPT等文件格式,支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述,25分钟生成高质量综述,智能提取关键信息,辅助科研写作。

立即免费体验