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Sevoflurane in acute myocardial infarction: a pilot randomized study.
Shahar Lavi1, Daniel Bainbridge1, Sabrina D'Alfonso2
1Western University, London, Ontario, Canada; London Health Sciences Centre, London, Ontario, Canada.
American Heart Journal
|December 3, 2014
Summary
Sevoflurane sedation did not reduce heart attack size in patients undergoing primary percutaneous coronary intervention (PCI). However, it improved ST-segment resolution, indicating better blood flow after PCI.
Area of Science:
- Cardiology
- Anesthesiology
- Critical Care Medicine
Background:
- Inhalational anesthetic sevoflurane shows potential cardioprotective effects.
- Acute myocardial infarction (MI) treatment involves primary percutaneous coronary intervention (PCI).
Purpose of the Study:
- To investigate if sevoflurane sedation reduces infarct size in acute MI patients undergoing primary PCI.
- To assess the impact of sevoflurane on myocardial reperfusion and coronary flow post-PCI.
Main Methods:
- Randomized controlled trial with 50 patients with first acute ST-elevation MI.
- Patients received either sevoflurane inhalation or standard sedation during primary PCI.
- Infarct size assessed by creatinine kinase (CK) and troponin T; reperfusion by ST-segment resolution and corrected Thrombolysis In Myocardial Infarction (TIMI) frame count.
Main Results:
- No significant difference in infarct size (CK or troponin T) between sevoflurane and control groups.
- Trend towards lower CK levels in anterior MI patients receiving sevoflurane (P = .05).
- Significantly improved ST-segment resolution in the sevoflurane group (80.7% vs. 56.6%, P = .01).
Conclusions:
- Sevoflurane sedation during primary PCI did not reduce infarct size.
- A trend towards reduced infarct size was observed in anterior MI patients.
- Sevoflurane administration improved ST-segment resolution, suggesting enhanced myocardial reperfusion.
