[Myocardial revascularization: isoflurane and halothane. Our experience]

The use of isofluorane in coronary patients has been questioned due to the coronary steal syndrome that this agent is said to produce with changes in the myocardial lactate extraction, ST segment changes or T wave inversion. Three hundred fifty nine patients underwent coronary revascularization were studied. The anaesthesia was carried out with halothane (146 patients) or isofluorane (213 patients) as volatile agents of a balanced anesthetic technique based on high doses of narcotics. We found no correlation between the use of isofluorane and ST changes or T wave inversion. The appearance of myocardial infarction between the 2 groups was also no statistically difference (p = 0.61).