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Systematic review and consensus definitions for the Standardized Endpoints in Perioperative Medicine (StEP)
W Scott Beattie1, Manoj Lalu2, Matthew Bocock2
1Cardiovascular Anesthesia, University Health Network, University of Toronto, Toronto, ON, Canada.
Insights
Standardized cardiovascular outcomes for perioperative trials were established. Nine key events, including myocardial infarction and cardiovascular death, were identified to improve clinical trial consistency and reliability.
Area of Science:
- Cardiology
- Anesthesiology
- Clinical Trials
Background:
- Adverse cardiovascular events significantly contribute to perioperative morbidity and mortality.
- Heterogeneous definitions of perioperative cardiovascular adverse events hinder consistent research.
- The Standardized Endpoints in Perioperative Medicine initiative seeks to address this variability.
Purpose of the Study:
- To achieve consensus among clinical trialists on standardized cardiovascular outcomes for perioperative research.
- To establish valid and reliable endpoints for future clinical trials evaluating perioperative interventions.
Main Methods:
- Systematic literature review to identify existing perioperative cardiovascular outcomes.
- Three-stage Delphi consensus process involving 55 international clinician researchers.
- Assessment of shortlisted outcomes for validity, reliability, feasibility, and clarity.
Main Results:
- Identified 18 cardiovascular outcomes initially, with high participation rates in Delphi rounds.
- Elicited consensus on nine key cardiovascular outcomes: myocardial infarction, myocardial injury, cardiovascular death, non-fatal cardiac arrest, coronary revascularisation, major adverse cardiac events, pulmonary embolism, deep vein thrombosis, and atrial fibrillation.
- The nine consensus outcomes were rated as valid, reliable, feasible, and clearly defined by experts.
Conclusions:
- The nine consensus cardiovascular outcomes provide a standardized set of endpoints for perioperative clinical trials.
- These standardized endpoints can be confidently utilized to improve the quality and comparability of research on perioperative interventions.
- This consensus is expected to enhance the evaluation of interventions aimed at improving perioperative outcomes.
Background:
Adverse cardiovascular events are a leading cause of perioperative morbidity and mortality. The definitions of perioperative cardiovascular adverse events are heterogeneous. As part of the international Standardized Endpoints in Perioperative Medicine initiative, this study aimed to find consensus amongst clinical trialists on a set of standardised and valid cardiovascular outcomes for use in future perioperative clinical trials.
Methods:
We identified currently used perioperative cardiovascular outcomes by a systematic review of the anaesthesia and perioperative medicine literature (PubMed/Ovid, Embase, and Cochrane Library). We performed a three-stage Delphi consensus-gaining process that involved 55 clinician researchers worldwide. Cardiovascular outcomes were first shortlisted and the most suitable definitions determined. These cardiovascular outcomes were then assessed for validity, reliability, feasibility, and clarity.
Results:
We identified 18 cardiovascular outcomes. Participation in the three Delphi rounds was 100% (n=19), 71% (n=55), and 89% (n=17), respectively. A final list of nine cardiovascular outcomes was elicited from the consensus: myocardial infarction, myocardial injury, cardiovascular death, non-fatal cardiac arrest, coronary revascularisation, major adverse cardiac events, pulmonary embolism, deep vein thrombosis, and atrial fibrillation. These nine cardiovascular outcomes were rated by the majority of experts as valid, reliable, feasible, and clearly defined.
Conclusions:
These nine consensus cardiovascular outcomes can be confidently used as endpoints in clinical trials designed to evaluate perioperative interventions with the goal of improving perioperative outcomes.
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