Mashiah A, Mashiah T
J Am Geriatr Soc. 1984 Jan;32(1):62-3. doi: 10.1111/j.1532-5415.1984.tb05152.x.
Forty-three elderly patients with massive bleeding of hemorrhoidal varices were treated by cryosurgery at a single outpatient session, using nitrous oxide gas, without premedication or anesthesia. The results were excellent in all but one patient, who had ulcerative colitis and required another session of cryotherapy following a recurrence of bleeding. There was no morbidity and no mortality. The patients have remained free of symptoms over follow-up periods ranging from two to five years. The authors believe that cryosurgery is the treatment of choice and indeed may sometimes be life-saving for elderly, poor-risk patients who are unfit for general anesthesia and surgical hemorrhoidectomy.
43例患有内痔静脉曲张大出血的老年患者在门诊单次接受冷冻手术治疗，使用一氧化二氮气体，未进行术前用药或麻醉。除1例患者外，其余患者效果均极佳，该例患者患有溃疡性结肠炎，出血复发后需再次进行冷冻治疗。无并发症发生，也无死亡病例。在长达2至5年的随访期内，患者一直无症状。作者认为，对于不适合全身麻醉和外科痔切除术的老年、高危患者，冷冻手术是首选治疗方法，甚至有时可能挽救生命。
