Epidural catheter was placed in T9 to T12 before induction of general anesthesia in group c.
C组在全身麻醉诱导前先行t9 ~ T12硬脊膜外腔穿刺、置管。
Induction of General anesthesia General anesthesia can be induced by giving drugs intravenously, by inhalation, or by a combination of both methods.
全身麻醉的诱导经静脉、吸入或两种方式联合给药都能诱导全身麻醉。
CONCLUSION: We conclude that bag-mask ventilation is easier in edentulate patients when their dentures are left in situ during induction of general anesthesia.
结论：无牙患者全身麻醉诱导过程中保留假牙在原位有助于面罩通气。
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