Evidence map›Paper›PMID 41856858›Full record

Observational studyJournal of cardiothoracic and vascular anesthesia2026

Patient-, Clinician-, and Institution-level Variation in Intraoperative Antihypertensive Use: A Multicenter Observational Analysis.

Megan L Rolfzen, Douglas A Colquhoun, Nirav Shah, Siyu Ma, Allison M Janda, Graciela B Mentz, Sue Liu, Sachin Kheterpal, Michael R Mathis, MPOG Collaborators

Abstract readObservational StudyMulticenter Study
In one paragraph

Observational study in Journal of cardiothoracic and vascular anesthesia, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

10 authors.

Megan L RolfzenDepartment of Anesthesiology, University of Michigan Medical School, Ann Arbor, MI.
Douglas A ColquhounDepartment of Anesthesiology, University of Michigan Medical School, Ann Arbor, MI.
Nirav ShahDepartment of Anesthesiology, University of Michigan Medical School, Ann Arbor, MI.
Siyu MaChiesi USA, Inc., Cary, NC.
Allison M JandaDepartment of Anesthesiology, University of Michigan Medical School, Ann Arbor, MI.
Graciela B MentzDepartment of Anesthesiology, University of Michigan Medical School, Ann Arbor, MI.
Sue LiuChiesi USA, Inc., Cary, NC.
Sachin KheterpalDepartment of Anesthesiology, University of Michigan Medical School, Ann Arbor, MI.
Michael R MathisDepartment of Anesthesiology, University of Michigan Medical School, Ann Arbor, MI; Department of Computational Bioinformatics, University of Michigan Medical School, Ann Arbor, MI. Electronic address: mathism@med.umich.edu.
MPOG Collaborators

Funding

Data Driven Approaches to Improving Risk Prediction of Pulmonary Complications After Major Inpatient SurgeryK08HL159327 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI COLQUHOUN, DOUGLAS ALASTAIR · 2021 to 2025
$811k
PHEnylephrine versus NOrepinephrine in Major NONcardiac surgery (PHENOMeNON): Foundational Studies for a Pragmatic Randomized Clinical Trial.K23HL166685 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Allison Mary Janda · 2023 to 2026
$689k
NHLBI NIH HHS K08 HL159327NHLBI NIH HHS K23 HL166685
6 · The paper itself

Abstract

OBJECTIVE(S): Intraoperative use of antihypertensive medications in cardiac and major noncardiac surgery to achieve hemodynamic stability is important for patient outcomes, yet limited multicenter data exist on the degree of practice variation.

designRetrospective, multicenter observational study.

settingSixty-five U.S. hospitals in the Multicenter Perioperative Outcomes Group national registry between 2014 and 2022.

participantsAdult patients undergoing cardiac surgery (n = 89,530; 30 hospitals) and major noncardiac surgery (n = 2,644,777; 65 hospitals).

interventionsNone. MEASUREMENTS AND MAIN

resultsGeneralized linear mixed models estimated patient-, clinician-, and institutional-level variation and identified factors associated with antihypertensive infusion administration, defined as >60 cumulative minutes or continued during transport from the operating room. Among cardiac cases, 12,415 (13.9%) patients received an antihypertensive infusion for >60 minutes, most commonly nitroglycerin or nicardipine. Among noncardiac patients, 23,535 (0.89%) received an antihypertensive infusion of >60 minutes, most commonly nicardipine. In the cardiac cohort, median odds ratios for receiving antihypertensive infusions were 2.03 (95% confidence interval (CI) 1.95-2.11) and 2.77 (95% CI 2.13-3.40) between randomly selected clinicians and institutions, respectively (Table 2). Factors associated with antihypertensive infusions in cardiac patients were valve surgery (adjusted odds ratio 2.59, 95% CI 2.29-2.92), emergent procedure (2.46, 2.22-2.72), and maximum intraoperative systolic blood pressure >200 mmHg (2.28, 1.99-2.62). In the noncardiac cohort, median odds ratios for receiving antihypertensive infusions were 1.90 (95% CI 1.86-1.93) and 2.02 (95% CI 1.80-2.24) between randomly selected clinicians and institutions, respectively. Factors most strongly associated with antihypertensive use in major noncardiac surgery were elevated intraoperative systolic blood pressure (>140 mmHg) and hypertension comorbidity (adjusted odds ratio 1.82, 95% CI 1.74-1.89).

conclusionsWhile patient clinical characteristics were major contributors to antihypertensive infusion use across U.S. institutions, clinician- and institution-level factors also appear to influence practice variation. Such differences highlight the need for evidence-based guidelines and comparative effectiveness research to ground practice, drive quality improvement efforts, and reduce potentially unexplained variation.

Indexed as

Antihypertensive AgentsCardiac Surgical ProceduresHypertensionIntraoperative CareAgedFemaleHumansMaleMiddle AgedRegistriesRetrospective StudiesUnited StatesAntihypertensive Agentsadult major surgeryanesthesiologyantihypertensive medicationsperioperative registriespractice variation

Identifiers

PMID41856858
PMCPMC13101070

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.