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Effect of Individualized vs Standard Blood Pressure Management Strategies on Postoperative Organ Dysfunction Among High-Risk Patients Undergoing Major Surgery: A Randomized Clinical Trial.
- Source :
- JAMA: Journal of the American Medical Association; 10/10/2017, Vol. 318 Issue 14, p1346-1357, 12p, 1 Diagram, 3 Charts, 2 Graphs
- Publication Year :
- 2017
-
Abstract
- <bold>Importance: </bold>Perioperative hypotension is associated with an increase in postoperative morbidity and mortality, but the appropriate management strategy remains uncertain.<bold>Objective: </bold>To evaluate whether an individualized blood pressure management strategy tailored to individual patient physiology could reduce postoperative organ dysfunction.<bold>Design, Setting, and Participants: </bold>The Intraoperative Norepinephrine to Control Arterial Pressure (INPRESS) study was a multicenter, randomized, parallel-group clinical trial conducted in 9 French university and nonuniversity hospitals. Adult patients (n = 298) at increased risk of postoperative complications with a preoperative acute kidney injury risk index of class III or higher (indicating moderate to high risk of postoperative kidney injury) undergoing major surgery lasting 2 hours or longer under general anesthesia were enrolled from December 4, 2012, through August 28, 2016 (last follow-up, September 28, 2016).<bold>Interventions: </bold>Individualized management strategy aimed at achieving a systolic blood pressure (SBP) within 10% of the reference value (ie, patient's resting SBP) or standard management strategy of treating SBP less than 80 mm Hg or lower than 40% from the reference value during and for 4 hours following surgery.<bold>Main Outcomes and Measures: </bold>The primary outcome was a composite of systemic inflammatory response syndrome and dysfunction of at least 1 organ system of the renal, respiratory, cardiovascular, coagulation, and neurologic systems by day 7 after surgery. Secondary outcomes included the individual components of the primary outcome, durations of ICU and hospital stay, adverse events, and all-cause mortality at 30 days after surgery.<bold>Results: </bold>Among 298 patients who were randomized, 292 patients completed the trial (mean [SD] age, 70 [7] years; 44 [15.1%] women) and were included in the modified intention-to-treat analysis. The primary outcome event occurred in 56 of 147 patients (38.1%) assigned to the individualized treatment strategy vs 75 of 145 patients (51.7%) assigned to the standard treatment strategy (relative risk, 0.73; 95% CI, 0.56 to 0.94; P = .02; absolute risk difference, -14%, 95% CI, -25% to -2%). Sixty-eight patients (46.3%) in the individualized treatment group and 92 (63.4%) in the standard treatment group had postoperative organ dysfunction by day 30 (adjusted hazard ratio, 0.66; 95% CI, 0.52 to 0.84; P = .001). There were no significant between-group differences in severe adverse events or 30-day mortality.<bold>Conclusions and Relevance: </bold>Among patients predominantly undergoing abdominal surgery who were at increased postoperative risk, management targeting an individualized systolic blood pressure, compared with standard management, reduced the risk of postoperative organ dysfunction.<bold>Trial Registration: </bold>clinicaltrials.gov Identifier: NCT01536470. [ABSTRACT FROM AUTHOR]
- Subjects :
- REGULATION of blood pressure
ORGANS (Anatomy)
HYPOTENSION
AT-risk people
POSTOPERATIVE period
SURGICAL complications
RANDOMIZED controlled trials
HEALTH
PATIENTS
PHYSIOLOGY
ABDOMINAL surgery
CARDIOVASCULAR disease prevention
KIDNEY disease prevention
RESPIRATORY disease prevention
PREVENTION of surgical complications
SYSTEMIC inflammatory response syndrome
ADRENALINE
BLOOD pressure measurement
COMPARATIVE studies
LENGTH of stay in hospitals
RESEARCH methodology
MEDICAL cooperation
NORADRENALINE
POSTOPERATIVE care
RESEARCH
STATISTICAL sampling
OPERATIVE surgery
VASOCONSTRICTORS
EVALUATION research
PREVENTION
Subjects
Details
- Language :
- English
- ISSN :
- 00987484
- Volume :
- 318
- Issue :
- 14
- Database :
- Complementary Index
- Journal :
- JAMA: Journal of the American Medical Association
- Publication Type :
- Academic Journal
- Accession number :
- 125672032
- Full Text :
- https://doi.org/10.1001/jama.2017.14172