目的：探讨超声截断结扎术治疗重度混合痔的临床应用价值。

Objective To investigate clinical value of ultrasonic-scalpel-segment and ligation in the treatment of severe mixed hemorrhoids.

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目的：探讨更加完善的治疗重度环肛混合痔的手术方法。

Objective:To explore more perfect operative methods in treatment of severe circumferential mixed hemorrhoid.

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目的探讨吻合器痔上黏膜环形切除术(PPH)治疗重度脱垂性混合痔的临床效果。

Objective: To evaluate the outcomes of haemostasis by procedure for prolapse and hemorrhoids (PPH) in severe haemorrhoids.

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