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Individualized blood pressure management reduces delirium but does not impact acute kidney injury or mortalityIndividualized Blood Pressure Care Cuts Delirium Risk

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Key Takeaway
Note that individualized blood pressure management reduces delirium but does not significantly impact AKI or mortality.

This meta-analysis evaluated the impact of individualized blood pressure management compared to conventional methods in 4,017 adults undergoing major non-cardiac surgery. The analysis focused on primary outcomes of acute kidney injury (AKI) and all-cause mortality, alongside secondary outcomes including delirium, myocardial infarction, and intraoperative mean arterial pressure (MAP).

The meta-analysis found that individualized management did not significantly reduce the risk of acute kidney injury (RR 0.88; 95% CI: 0.68 to 1.15; p = 0.36) or all-cause mortality (RR 0.96; 95% CI: 0.63 to 1.46; p = 0.83). However, a significant reduction in delirium was observed with individualized management (RR 0.55; 95% CI: 0.35 to 0.88; p = 0.01). Additionally, patients receiving individualized care had a higher mean intraoperative MAP (MD 5.53 mmHg; 95% CI: 1.66 to 9.40; p = 0.01).

Other secondary outcomes, including myocardial infarction, postoperative cognitive dysfunction, composite complications, and length of hospital stay, showed no significant differences between the two management strategies. While individualized management may improve intraoperative hemodynamic stability and reduce delirium risk, it does not appear to influence primary clinical endpoints like AKI or mortality in this population.

A new analysis of previous studies looked at whether customizing blood pressure management during major non-cardiac surgery helps patients. The analysis combined data from 4,017 adults, with about half receiving individualized blood pressure targets and the other half receiving conventional care.

The main goals were to see if individualized care reduced acute kidney injury or the need for kidney replacement therapy, and deaths from any cause. The analysis found no significant reduction in either. The risk of kidney injury or replacement therapy was 0.88 times that of conventional care, but this could have been due to chance. Similarly, the risk of death was 0.96 times, also not statistically significant.

However, there was a notable benefit: delirium was significantly less common with individualized care. The risk was 0.55 times that of conventional care, a statistically significant finding. Also, patients in the individualized group had a higher average blood pressure during surgery, by about 5.53 mmHg, which was also significant.

No differences were seen for heart attacks, cognitive problems, other complications, or length of hospital stay. Safety details were not reported.

This is a meta-analysis, which means it combines results from several studies, but the primary outcomes did not show clear benefits. The main takeaway is that individualized blood pressure management might help prevent delirium, but it does not appear to reduce kidney injury or death. Patients should discuss their blood pressure management with their surgical team.

What this means for you:
Individualized blood pressure during surgery may lower delirium risk, but doesn't reduce kidney injury or death.

Common questions

What is individualized blood pressure management?

It means doctors set blood pressure targets for each patient during surgery, rather than using a one-size-fits-all approach. This analysis compared that to conventional care in adults having major non-cardiac surgery.

Does individualized blood pressure management reduce kidney injury?

No. The analysis found no significant reduction in acute kidney injury or need for kidney replacement therapy. The risk was 0.88 times that of conventional care, but this was not statistically significant.

Does it reduce the risk of death?

No. The risk of death was 0.96 times that of conventional care, but this was not statistically significant. So there is no clear evidence that it lowers mortality.

What are the potential benefits?

The analysis found a significant reduction in delirium, with a risk of 0.55 times that of conventional care. Patients also had a higher average blood pressure during surgery, by about 5.53 mmHg.

Study Details

Study typeMeta analysis
EvidenceLevel 1
PublishedAug 2026
View Original Abstract ↓
IntroductionIntraoperative hypotension is common during non-cardiac surgery and is associated with high rates of morbidity and mortality. Individualized blood pressure management aims to minimize postoperative complications by tailoring patients’ blood pressure targets based on their baseline values rather than relying on conventional management. This meta-analysis aims to evaluate the efficacy of individualized and conventional blood pressure management strategies in patients undergoing non-cardiac surgery.MethodsWe conducted a search of PubMed, Scopus, Web of Science, and Cochrane CENTRAL from their inception to January 2026 to identify randomized controlled trials (RCTs) that compared individualized blood pressure management with conventional care in adults undergoing major non-cardiac surgery. The primary outcomes were acute kidney injury/renal replacement therapy and all-cause mortality. The secondary outcomes included myocardial infarction, delirium, postoperative cognitive dysfunction, composite complications, mean intraoperative mean arterial pressure (MAP), and length of hospital stay.ResultsNine RCTs comprising 4,017 patients (with 2,014 receiving individualized blood pressure management and 2,003 in the control group) were included. Individualized blood pressure management did not significantly reduce the risk of acute kidney injury/the need for renal replacement therapy (RR 0.88, 95% CI: 0.68–1.15, p = 0.36) or all-cause mortality (RR 0.96, 95% CI: 0.63–1.46, p = 0.83) compared to conventional management. Similarly, no significant differences were observed for myocardial infarction, postoperative cognitive dysfunction, composite complications, or length of hospital stay. However, individualized management significantly reduced delirium rates (RR 0.55, 95% CI: 0.35–0.88, p = 0.01) and achieved higher mean intraoperative MAP (MD 5.53 mmHg, 95% CI: 1.66–9.40, p = 0.01).ConclusionIndividualized intraoperative blood pressure management did not reduce major postoperative complications, such as acute kidney injury, or mortality rates compared to conventional care. However, it was associated with reduced postoperative delirium and improved intraoperative hemodynamic stability. These findings suggest that while individualized strategies may not significantly affect clinical outcomes, they offer benefits in preventing delirium.Systematic review registrationhttps://www.crd.york.ac.uk/PROSPERO/view/CRD420261319820.
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