C组在全身麻醉诱导前先行t9 ~T12硬脊膜外腔穿刺、置管。

Epidural catheter was placed in T9 to T12 before induction of general anesthesia in group c.

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C组在全身麻醉诱导前先行t9 ~T12硬脊膜外腔穿刺、置管。

Epidural catheter was placed in T9 to T12 before induction of general anesthesia in group c.

youdao