The operative time, bleeding volume and the time of exsufflation and hospitalization after operation in modified group were less than those in routine, with significant difference(P<0.05).
改良组的手术时间、出血量、术后排气时间和住院时间均少于常规组，差异有显著性（P<0.05）；
The operative time, bleeding volume and the time of exsufflation and hospitalization after operation in modified group were less than those in routine, with significant difference(P<0.05).
改良组的手术时间、出血量、术后排气时间和住院时间均少于常规组，差异有显著性（P<0.05）；
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