Effect of intensive lowering of systolic blood pressure treatment on heart failure events: a meta-analysis of randomized controlled studies

J Hum Hypertens. 2019 Sep;33(9):648-657. doi: 10.1038/s41371-019-0221-z. Epub 2019 Jul 30.

Abstract

We performed this meta-analysis to assess the association between intensive systolic blood pressure (SBP)-lowering strategies and heart failure (HF). A comprehensive literature review was conducted using English and Chinese databases from their origination through April 2018. Random-effects models were used to calculate pooled relative risks and 95% confidence intervals. Nine randomized controlled trials including a total of 39,936 hypertensive patients were ultimately included in our meta-analysis. Pooled analysis of these nine trials showed that a treatment target of SBP ≤140 mmHg was associated with a significant reduction in HF risk (RR: 0.73, 95%CI: 0.62-0.87). Furthermore, the pooled analysis of prospective randomized controlled trials indicated a significant association between intensive lowering of SBP and HF risk (RR: 0.75, 95%CI: 0.62-0.90) and showed that intensive lowering of SBP could decrease risk of HF in patients without diabetes mellitus (RR: 0.69, 95%CI: 0.52-0.91) and in those ≥65 years old (RR: 0.72, 95%CI: 0.56-0.93), but this finding was not shown for patients with diabetes mellitus (RR: 0.81, 95%CI: 0.56-1.19) or in those <65 years old (RR: 0.81, 95%CI: 0.56-1.19). When intensive lowering of SBP achieved an SBP ≤ 120 mmHg, a pooled analysis indicated a positive association between SBP and HF risk (RR: 0.75, 95%CI: 0.63-0.89), and a pooled analyses showed that intensive lowering of SBP could decrease risk of HF in patients without diabetes mellitus (RR: 0.71, 95%CI: 0.51-0.98) and in those ≥65 years old (RR: 0.76, 95%CI: 0.58-0.98); however, this result was not found for patients with diabetes mellitus (RR: 0.81, 95%CI: 0.56-1.19) or those <65 years old (RR: 0.81, 95%CI: 0.56-1.19). The existing data support the results of a positive association between intensive SBP-lowering treatment and HF risk, especially for those patients without diabetes and those older than 65 years. However, additional prospective studies are still needed to confirm these associations.

Publication types

  • Meta-Analysis
  • Systematic Review

MeSH terms

  • Adult
  • Age Factors
  • Aged
  • Aged, 80 and over
  • Antihypertensive Agents / therapeutic use*
  • Blood Pressure / drug effects*
  • Diabetes Mellitus / epidemiology
  • Female
  • Heart Failure / diagnosis
  • Heart Failure / epidemiology
  • Heart Failure / physiopathology
  • Heart Failure / prevention & control*
  • Humans
  • Hypertension / diagnosis
  • Hypertension / drug therapy*
  • Hypertension / epidemiology
  • Hypertension / physiopathology
  • Male
  • Middle Aged
  • Randomized Controlled Trials as Topic
  • Risk Assessment
  • Risk Factors
  • Time Factors
  • Treatment Outcome

Substances

  • Antihypertensive Agents