Evidence map›Paper›PMID 18479744›Full record

Trial reportLancet (London, England)2008

Effects of extended-release metoprolol succinate in patients undergoing non-cardiac surgery (POISE trial): a randomised controlled trial.

POISE Study Group, P J Devereaux, Homer Yang, Salim Yusuf, Gordon Guyatt, Kate Leslie, Juan Carlos Villar, Denis Xavier, Susan Chrolavicius, Launi Greenspan and 10 more

7 registry-linked trialsAbstract readMulticenter StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Lancet (London, England), 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 7 registered trials, which are not on this map. Cited by 433 papers, 16 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
433citing papers in PubMed, 16 pooled it
–field-weighted citation impact
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.

NCT01543555 phase3completedstarted 2012, after this paper: background citation

Multicenter Randomized Controlled Trial of Loading Dose Statins for the Prevention of Cardiovascular Complications in High-Risk Non-Cardiac Surgery

Ran2012Enrolled648Registered outcomes10Posted comparisons0ConditionsAortic Aneurism, Myocardial Infarction, Peripheral Vascular DiseaseArmsAtorvastatin, Placebo
Open the trial in the graph
NCT00182039 phase3terminatednot on this map

Perioperative Ischemic Evaluation Study (POISE) Trial

TypeinterventionalSponsorHamilton Health Sciences CorporationRan2002 to 2007Enrolled8,351ConditionsCardiovascular DiseasesArmsMetoprolol controlled release (CR), Placebo
NCT00430612 completednot on this mapstarted 2009, after this paper: background citation

The PACE-MI Registry Study - Outcomes of Beta-blocker Therapy After Myocardial Infarction (OBTAIN)

Typeobservational_patient_registrySponsorNorthwestern UniversityRan2009 to 2015Enrolled7,057ConditionsMyocardial Infarction
NCT01330654 nawithdrawnnot on this mapstarted 2011, after this paper: background citation

Using Heart Rate Variability to Analyze the Effect of Beta Blockers on Intermediate Risk Patients Undergoing Laparoscopic Surgical Procedures

TypeinterventionalSponsorUniversity of California, San FranciscoRan2011 to 2012Enrolled0ConditionsCardiac Event RiskArmsmetoprolol
NCT02291419 phase4terminatednot on this mapstarted 2015, after this paper: background citation

An Open Label, Randomized Study to Determine the Rate of Cardiovascular Events at 1 yr for Patients With Elevated Troponins Post Major Non-cardiac Surgery and the Impact of Ticagrelor vs Aspirin on the Occurrence of Cardiovascular Events

TypeinterventionalSponsorThe Cleveland ClinicRan2015 to 2016Enrolled6ConditionsMyocardial InjuryArmsticagrelor, aspirin
NCT03129009 naunknown statusnot on this mapstarted 2017, after this paper: background citation

Changes of Hemodynamics and Vital Organ Function in Intracerebral Hemorrhage During Different General Anesthesia

TypeinterventionalSponsorXuzhou Medical UniversityRan2017 to 2018Enrolled90ConditionsBalanced Anesthesia, Intracerebral Hemorrhage, Total Intravenous AnesthesiaArmsTotal intravenous anesthesia group, Balanced anesthesia group
NCT06944301 nanot yet recruitingnot on this mapstarted 2025, after this paper: background citation

Comparison of Myocardial Injury After Noncardiac Surgery (MINS) Incidence in Supine vs. Prone Positioning During Percutaneous Nephrolithotomy (PNL)

TypeinterventionalSponsorMedipol UniversityRan2025 to 2026Enrolled400ConditionsMINS, Myocardial Injury After Noncardiac Surgery, Myocardial Injury After Noncardiac Surgery (MINS), Renal CalculiArmsblood sampling
3 · Its place in the literature

Who cites it

433 citing papers in PubMed, 16 syntheses or guidelines pooled it.

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  4. Guideline
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  10. Beta-blockers in patients without heart failure after myocardial infarction.The Cochrane database of systematic reviews · 2021
    Pooled it
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  13. Beta-blockers for suspected or diagnosed acute myocardial infarction.The Cochrane database of systematic reviews · 2019
    Pooled it
  14. Pooled it
  15. The Japanese Society of Hypertension Guidelines for the Management of Hypertension (JSH 2019).Hypertension research : official journal of the Japanese Society of Hypertension · 2019
    Guideline
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  17. Trial
  18. Trial
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373 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

20 authors.

POISE Study GroupMcMaster University, Faculty of Health Sciences, Clinical Epidemiology and Biostatistics, Room 2C8, 1200 Main Street West, Hamilton, ON, L8N 3Z5, Canada. philipj@mcmaster.ca
P J Devereaux
Homer Yang
Salim Yusuf
Gordon Guyatt
Kate Leslie
Juan Carlos Villar
Denis Xavier
Susan Chrolavicius
Launi Greenspan
Janice Pogue
Prem Pais
Lisheng Liu
Shouchun Xu
German Málaga
Alvaro Avezum
Matthew Chan
Victor M Montori
Mike Jacka
Peter Choi

Funding

British Heart Foundation
6 · The paper itself

Abstract

backgroundTrials of beta blockers in patients undergoing non-cardiac surgery have reported conflicting results. This randomised controlled trial, done in 190 hospitals in 23 countries, was designed to investigate the effects of perioperative beta blockers.

methodsWe randomly assigned 8351 patients with, or at risk of, atherosclerotic disease who were undergoing non-cardiac surgery to receive extended-release metoprolol succinate (n=4174) or placebo (n=4177), by a computerised randomisation phone service. Study treatment was started 2-4 h before surgery and continued for 30 days. Patients, health-care providers, data collectors, and outcome adjudicators were masked to treatment allocation. The primary endpoint was a composite of cardiovascular death, non-fatal myocardial infarction, and non-fatal cardiac arrest. Analyses were by intention to treat. This trial is registered with ClinicalTrials.gov, number NCT00182039.

findingsAll 8351 patients were included in analyses; 8331 (99.8%) patients completed the 30-day follow-up. Fewer patients in the metoprolol group than in the placebo group reached the primary endpoint (244 [5.8%] patients in the metoprolol group vs 290 [6.9%] in the placebo group; hazard ratio 0.84, 95% CI 0.70-0.99; p=0.0399). Fewer patients in the metoprolol group than in the placebo group had a myocardial infarction (176 [4.2%] vs 239 [5.7%] patients; 0.73, 0.60-0.89; p=0.0017). However, there were more deaths in the metoprolol group than in the placebo group (129 [3.1%] vs 97 [2.3%] patients; 1.33, 1.03-1.74; p=0.0317). More patients in the metoprolol group than in the placebo group had a stroke (41 [1.0%] vs 19 [0.5%] patients; 2.17, 1.26-3.74; p=0.0053).

interpretationOur results highlight the risk in assuming a perioperative beta-blocker regimen has benefit without substantial harm, and the importance and need for large randomised trials in the perioperative setting. Patients are unlikely to accept the risks associated with perioperative extended-release metoprolol.

Indexed as

Adrenergic beta-AntagonistsAgedBlood PressureCardiovascular DiseasesDelayed-Action PreparationsFemaleHumansIntraoperative ComplicationsMaleMetoprololMiddle AgedPerioperative CarePreoperative CareRisk FactorsAdrenergic beta-AntagonistsDelayed-Action PreparationsMetoprolol

Identifiers

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

and 1 more above

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.