Dominguez Renata F, da Costa-Hong Valeria A, Ferretti Luan, Fernandes Fabio, Bortolotto Luiz A, Consolim-Colombo Fernanda M, Egan Brent M, Lopes Heno F
Universidade Nove de Julho-UNINOVE, São Paulo, Brasil.
Heart Institute (InCor) do Hospital das Clinicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brasil.
SAGE Open Med. 2019 Jan 8;7:2050312118823582. doi: 10.1177/2050312118823582. eCollection 2019.
The aim of this study was to determine if carvedilol improved structural and functional changes in the left ventricle and reduced mortality in patients with hypertensive heart disease.
Blood pressure, heart rate, echocardiographic parameters, and laboratory variables, were assessed pre and post treatment with carvedilol in 98 eligible patients.
Carvedilol at a median dose of 50 mg/day during the treatment period in hypertensive heart disease lowered blood pressure 10/10 mmHg, heart rate 10 beats/min, improved left ventricular ejection fraction from baseline to follow-up (median: 6 years) (36%-47%)) and reduced left ventricular end-diastolic and end-systolic dimensions (62 vs 56 mm; 53 vs 42 mm, respectively, all p-values <0.01). Left ventricular ejection fraction increased in 69% of patients. Patients who did not have improved left ventricular ejection fraction had nearly six-fold higher mortality than those that improved (relative risk; 5.7, 95% confidence interval: 1.3-25, p = 0.022).
Carvedilol reduced cardiac dimensions and improved left ventricular ejection fraction and cardiac remodeling in patients with hypertensive heart disease. These treatment-related changes had a favorable effect on survival.
本研究旨在确定卡维地洛是否能改善高血压性心脏病患者左心室的结构和功能变化,并降低死亡率。
对98例符合条件的患者在使用卡维地洛治疗前后评估血压、心率、超声心动图参数和实验室指标。
在高血压性心脏病治疗期间,卡维地洛的中位剂量为50毫克/天,可使血压降低10/10毫米汞柱,心率降低10次/分钟,左心室射血分数从基线到随访(中位时间:6年)得到改善(从36%提高到47%),并减小了左心室舒张末期和收缩末期内径(分别为62对56毫米;53对42毫米,所有p值<0.01)。69%的患者左心室射血分数增加。左心室射血分数未改善的患者死亡率比改善的患者高近六倍(相对风险;5.7,95%置信区间:1.3 - 25,p = 0.022)。
卡维地洛可减小高血压性心脏病患者的心脏大小,改善左心室射血分数和心脏重塑。这些与治疗相关的变化对生存有有利影响。