O'Callaghan J D, Matheson T S, Hall R
Br J Surg. 1982 Mar;69(3):157-9. doi: 10.1002/bjs.1800690315.
A comparative retrospective study, based on clinical assessment and questionnaire analysis, of 97 patients treated by cryosurgical haemorrhoidectomy and 99 patients treated by Milligan-Morgan haemorrhoidectomy, at 4-year average follow-up, has shown that 70 per cent of patients in each group derived complete and lasting relief from their symptoms. Two patients in each group required further treatment. There was no significant difference between the numbers who remembered severe, moderate or mild pain, or in its duration, although fewer cryosurgical patients required opiates. Postoperative discharge ceased in 70 per cent of patients within 2 weeks. When skin tags remained, they were usually inconsequential. Anal stenosis following cryohaemorrhoidectomy did not occur, and has not been reported. Cryohaemorrhoidectomy gave results equal to Milligan-Morgan haemorrhoidectomy in patients with prolapsing piles, with fewer complications, and has the economic advantages of less time in hospital (P less than 0.01) and less time off work (P less than 0.01).
一项基于临床评估和问卷调查分析的对比性回顾性研究,对97例行冷冻痔切除术的患者和99例行Milligan-Morgan痔切除术的患者进行了平均4年的随访,结果显示每组70%的患者症状得到完全且持久的缓解。每组有2例患者需要进一步治疗。在记得严重、中度或轻度疼痛的人数及其持续时间方面,两组之间没有显著差异,尽管接受冷冻手术的患者需要使用阿片类药物的较少。70%的患者在2周内停止术后排液。当有皮赘残留时,通常无关紧要。冷冻痔切除术后未发生肛门狭窄,也未见相关报道。对于脱垂性痔患者,冷冻痔切除术的效果与Milligan-Morgan痔切除术相当,并发症更少,并且具有住院时间更短(P<0.01)和误工时间更短(P<0.01)的经济优势。