Table 2.
Immediate extubation rate at different stages of the learning curve
| Indices | First group (n = 54) | Second group (n = 54) | Third group (n = 54) | Fourth group (n = 54) |
|---|---|---|---|---|
| PASP 60–70 mm Hg, n (s%) | 0 | 2 (0.04) | 4 (0.07) | 6 (0.11) |
| Cardiopulmonary bypass time, min | 80±26 | 62±23a | 48±16a, b | 45±14a, b |
| Aortic clamp time, min | 55±28 | 42±21a | 35±18a | 30±12a, b |
| Duration of the surgery, min | 115±35 | 90±21a | 76±16a, b | 70±17a, b |
PASP = Pulmonary arterial systolic pressure.
a
p < 0.05 compared with the first group.
a
p <0.05 compared with the second group.