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Effect of intensive versus standard blood pressure control on cardiovascular outcomes: a meta-analysis of randomized
1Department of Cardiology, Yixing People's Hospital, Yixing, Jiangsu Province, China.
Insights
Intensive blood pressure control significantly lowers cardiovascular risks, including heart attack and stroke. These findings support lower blood pressure targets for improved patient outcomes in hypertension management.
Area of Science:
- Cardiology
- Public Health
- Clinical Trials
Background:
- Hypertension management strategies vary, with differing targets for blood pressure control.
- The impact of intensive versus standard blood pressure control on cardiovascular outcomes requires systematic evaluation.
Purpose of the Study:
- To systematically evaluate the impact of intensive versus standard blood pressure control on cardiovascular outcomes.
- To synthesize evidence from randomized controlled trials (RCTs) to inform clinical practice guidelines.
Main Methods:
- A comprehensive meta-analysis of RCTs was conducted, searching major databases up to May 2025.
- Thirty-one RCTs with 156,933 participants were included, using a random-effects model for pooled risk estimates.
Main Results:
- Intensive blood pressure control significantly reduced major cardiovascular events (RR: 0.80), myocardial infarction (RR: 0.83), stroke (RR: 0.76), all-cause mortality (RR: 0.87), and cardiac death (RR: 0.79).
- Sensitivity analyses confirmed the robustness of these findings.
- Treatment effects showed variability based on participant characteristics and study duration.
Conclusions:
- Intensive blood pressure control, targeting systolic BP <120 or <130 mmHg, is associated with substantially reduced cardiovascular event risk.
- These results advocate for the adoption of lower blood pressure targets in clinical practice.
- Individualized patient assessment is crucial when implementing intensive blood pressure control strategies.
Background:
This meta-analysis systematically evaluated the impact of intensive (typically targeting systolic BP [SBP] <120 or <130 mmHg) versus standard (typically targeting SBP <140 mmHg) blood pressure control on cardiovascular outcomes in patients with hypertension.
Materials And Methods:
Relevant randomized controlled trials (RCTs) published up to May 2025 were identified through systematic searches of PubMed, Embase, Web of Science, and the Cochrane Library. A random-effects model was used to calculate pooled relative risks (RRs) with 95% confidence intervals (CIs).
Results:
Thirty-one RCTs involving a total of 156,933 participants (mean age range of trial populations: 36.6 to 83.6 years; proportion of male participants: 34.5% to 69.4%; follow-up duration: 1.8 to 19.3 years) were included in the final meta-analysis. Compared to standard blood pressure control, intensive control significantly reduced the risk of major cardiovascular events (RR: 0.80; 95% CI: 0.75-0.84; p < 0.001), myocardial infarction (RR: 0.83; 95% CI: 0.76-0.91; p < 0.001), stroke (RR: 0.76; 95% CI: 0.70-0.82; p < 0.001), all-cause mortality (RR: 0.87; 95% CI: 0.83-0.92; p < 0.001), and cardiac death (RR: 0.79; 95% CI: 0.73-0.86; p < 0.001). Sensitivity analyses confirmed the robustness of these findings. Additionally, the treatment effects varied by sample size, male proportion, smoking prevalence, diabetes status, and follow-up duration.
Conclusion:
Intensive blood pressure control (typically targeting SBP <120 or <130 mmHg) is strongly associated with a reduced risk of cardiovascular events. These findings support adopting lower blood pressure targets in clinical practice while emphasizing the need for individualized patient assessment.
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