• Tetsuya Shimada, Edward J Mascha, Dongsheng Yang, Mauro Bravo, Eva Rivas, Ilker Ince, Alparslan Turan, and Daniel I Sessler.
• From the Departments of Outcomes Research ( TS, EJM, DY, MB, ER, II, AT, DIS) , Quantitative Health Sciences (EJM, DY), General Anesthesiology (AT), Cleveland Clinic, Cleveland, Ohio, USA, Department of Anesthesiology, National Hospital Organization, Murayama Medical Center, Musashimurayama, Tokyo, Japan (TS), Department of Anesthesiology, National Defense Medical College, Tokorozawa, Saitama, Japan (TS), Department of Anesthesia Hospital Clinic of Barcelona, IDIBAPS, Universidad de Barcelona, Barcelona, Spain (ER), Altinbas University, Bahcelievler Medical Park Hospital, Istanbul, Turkey (II).
• Eur J Anaesthesiol. 2022 Apr 1; 39 (4): 315323315-323.

BackgroundWhether intra-operative hypertension causes postoperative complications remains unclear.ObjectiveWe sought to assess whether there is an absolute systolic hypertensive threshold associated with increased odds of a composite of postoperative myocardial injury and mortality, and acute kidney injury.DesignA retrospective cohort analysis using an electronic medical record registry.SettingThe Cleveland Clinic Main Campus, Cleveland, Ohio, USA, between January 2005 and December 2018.PatientsA total of 76 042 adults who had inpatient noncardiac surgery lasting at least an hour, creatinine recorded preoperatively and postoperatively, and had an available clinic blood pressure within 6 months before surgery.Main Outcome MeasuresUnivariable smoothing and multivariable logistic regression were used to estimate the probability of each outcome as a function of the highest intra-operative pressure for a cumulative 5, 10, or 30 min. We further assessed whether the relationships between intra-operative hypertension and each outcome depended on baseline systolic blood pressure.ResultsThe composite of myocardial injury and mortality was observed in 1.9%, and acute kidney injury in 4.5% of patients. After adjustment for confounders, there was little or no relationship between systolic pressure and either outcome over the range from 120 to 200 mmHg. There were also no obvious change points or thresholds above which odds of each outcome increased. And finally, there was no interaction with preoperative clinic blood pressure.ConclusionsThere was no clinically meaningful relationship between intra-operative systolic pressure and the composite of myocardial injury and mortality, or acute kidney injury, over the range from 120 and 200 mmHg.Copyright © 2022 European Society of Anaesthesiology and Intensive Care. Unauthorized reproduction of this article is prohibited.

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