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A MultiCenter Pilot Randomized Controlled Trial of Remote Ischemic Preconditioning in Major Vascular Surgery
D A Healy1, E Boyle2, D McCartan3
1Department of Vascular Surgery, University Hospital Limerick, Limerick, Ireland donagh1@hotmail.com.
Vascular and Endovascular Surgery
|November 18, 2015
Summary
Remote ischemic preconditioning (RIPC) did not significantly improve clinical outcomes in major vascular surgery patients. This pilot study found no difference in major adverse events between RIPC and control groups, warranting further investigation.
Area of Science:
- Cardiovascular Surgery
- Ischemic Physiology
Background:
- Major vascular surgery carries significant risks of perioperative cardiovascular and organ injury.
- Remote ischemic preconditioning (RIPC) is a potential strategy to mitigate these risks.
- Previous studies have shown mixed results regarding RIPC's efficacy.
Purpose of the Study:
- To evaluate the effect of remote ischemic preconditioning (RIPC) on clinical outcomes in patients undergoing major vascular surgery.
- To assess the impact of RIPC on a composite endpoint of major adverse cardiovascular and organ events.
Main Methods:
- Pilot randomized controlled trial involving patients scheduled for major vascular procedures.
- Patients were randomized to receive RIPC or serve as controls.
- Primary outcome was a composite of cardiovascular death, myocardial infarction, stroke, renal failure, and other major events.
Main Results:
- The primary composite outcome occurred in 19.2% of controls and 14.1% of RIPC patients (P = .446).
- No significant differences were observed in secondary outcomes, including myocardial injury markers.
- The study provides data to inform future, larger trials on RIPC in vascular surgery.
Conclusions:
- This pilot trial did not demonstrate a significant benefit of RIPC in reducing major adverse clinical outcomes following major vascular surgery.
- Further large-scale randomized controlled trials are necessary to definitively establish the role of RIPC in this patient population.
