P/N (n = 20)

P/H (n = 20)

RP/H (n = 20)

No. of ECT sessions with motor seizure duration > 20 sec (%)

75

83

86

No. of ECT sessions with EEG seizure duration > 25 sec (%)

60

73

88^*

No. of ECT sessions with peak RPP value > 20,000 (%)

15

17

21

Time to spontaneous breathing (min)

3.1 ± 1.0

3.8 ± 1.6

6.5 ± 2.5^**††

Emergence time (min)

5.1 ± 1.0

5.9 ± 1.6

7.7 ± 2.8^**††

Verapamil (mg)

0.2 ± 0.6

0.3 ± 0.7

0.4 ± 0.9

Ephedrine (mg)

1.3 ± 2.7

1.1 ± 2.4

2.1 ± 3.0