Effects of intensive blood pressure control on mortality and cardiorenal function in chronic kidney disease patients

Area of Science:

• Nephrology
• Cardiology
• Clinical Trials

Background:

• Blood pressure (BP) variability is a significant risk factor for cardiovascular and kidney outcomes in chronic kidney disease (CKD) patients.
• Optimal BP targets for CKD patients remain unclear, necessitating further research into management strategies.

Purpose of the Study:

• To evaluate the impact of intensive blood pressure (BP) management on cardiovascular and renal outcomes in patients with chronic kidney disease (CKD).
• To synthesize evidence from randomized controlled trials (RCTs) to determine the efficacy of intensive BP management in CKD.

Main Methods:

• A systematic literature search was conducted across PubMed, Embase, and the Cochrane Library for relevant RCTs.
• Inter-rater reliability for RCT selection was assessed using the Kappa score, indicating good agreement (kappa = 0.77).
• A meta-analysis was performed on data from 10 studies involving 20,059 CKD patients.

Main Results:

• Intensive BP management was associated with a significant reduction in cardiovascular disease mortality (RR: 0.69) and composite cardiovascular events (RR: 0.84).
• Overall, intensive BP management led to a significant decrease in all-cause mortality (RR: 0.77) among CKD patients.
• No significant effect was observed on the incidence of doubling of serum creatinine, 50% GFR reduction, composite renal events, or serious adverse events (SAEs).

Conclusions:

• Intensive blood pressure management in CKD patients is linked to improved survival rates, including reduced cardiovascular and all-cause mortality.
• The findings suggest that while intensive BP management benefits cardiovascular outcomes, its effect on renal function preservation in CKD requires further investigation.