Application of combined anesthesia with spontaneous breathing in the surgery of intertrochanteric fracture of femur in elderly patients.

After anesthesia, the VAS scores in three groups showed a decreasing trend over time, and those in Group A were lower than those in Group B and Group C, indicating that LMA preserving spontaneous breathing has better anesthetic effect, faster onset of effect, quicker recovery of postoperative consciousness, and longer maintenance time of analgesic effect, which can effectively reduce the pain of patients.

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The MMS scores of the three groups showed a trend of decreasing first and, then, increasing.

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