Trial shows ‘signals’ in favor of general anesthesia during EVT for stroke

The trial’s primary endpoint results showed that although final infarct volume was smaller in the GA group, the difference in the volume of infarct growth 48-72 hours after symptom onset among patients treated under GA or CS did not reach statistical significance (median [IQR] growth, 8.2 [2.2-38.6] mL vs. 19.4 [2.4-79.0] mL; P = .10).

“Assuming a normal distribution, the mean infarct growth for CS was 57.4 mL and for GA was 34.1 mL (difference, 23.2 mL; 95% CI, –6.4 to 52.9),” the research team noted.

A higher rate of successful reperfusion in the GA arm appeared to reflect its better clinical outcomes. Successful reperfusion occurred in 76.9% of GA patients, compared with 60.3% of CS patients (P = .04).

There were no clinically meaningful differences in safety endpoints between the two arms. Four patients (6.3%) in the CS group were converted to GA.