Study reports increased risk of death in patients receiving anesthesia drug etomidate for surgery

Published on December 14, 2013 at 11:44 AM · No Comments

Large study reports increased risk of death in patients receiving etomidate for anesthesia

Patients receiving the widely used anesthesia drug etomidate for surgery may be at increased risk or mortality and cardiovascular events, according to a study in the December issue of Anesthesia & Analgesia, official journal of the International Anesthesia Research Society (IARS).

The study adds to safety concerns over etomidate's use as an anesthetic and sedative drug. "There is accumulating evidence for an association between mortality and etomidate use, both in critically ill patients and now in [non-critically ill] patients undergoing noncardiac surgery," according to an editorial by Drs Matthieu Legrand and Beno-t Plaud of Paris-Diderot University.

In Ill Surgical Patients, Increased Risks with Etomidate

The editorial comments on a new study by Dr Ryu Komatsu of the Cleveland Clinic and colleagues, who assessed the risk of adverse outcomes in patients receiving etomidate for induction of anesthesia. Rates of death and cardiovascular events in about 2,100 patients receiving etomidate were compared to those in a matched group of 5,200 patients receiving induction with a different intravenous anesthetic, propofol. All patients had severe but non-critical medical conditions- ASA physical status III or IV-and were undergoing noncardiac surgery.

The results showed significantly higher risks in patients receiving etomidate. The etomidate group had a 250 percent increase in the risk of death within 30 days. (Absolute risk of death was 6.5 percent with etomidate versus 2.5 percent with propofol.) Patients receiving etomidate also had a 50 percent increase in the risk of major cardiovascular events.

The results are "striking and troubling," but the study is not the first to raise safety concerns over etomidate, according to Drs Legrand and Plaud write. Previous reports have suggested an increased risk of death in patients receiving etomidate in emergency situations or during critical illness, particularly sepsis. Subsequent randomized trials did not show an increased risk of death in critically ill patients receiving etomidate.

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