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  • Title: Transanal endoscopic microsurgery for rectal neoplasms: experience of 300 consecutive cases.
    Author: Allaix ME, Arezzo A, Caldart M, Festa F, Morino M.
    Journal: Dis Colon Rectum; 2009 Nov; 52(11):1831-6. PubMed ID: 19966628.
    Abstract:
    PURPOSE: Abdominal resection for rectal neoplasms is associated with significant morbidity. Local excision with retractors can be proposed only for distal rectal lesions. With this retrospective review of our prospective series of transanal endoscopic microsurgery procedures, we wanted to verify the advantages of local treatment in terms of disease recurrence and complication rates. METHODS: Indications for transanal endoscopic microsurgery were adenoma, early carcinoma, rectal ulcers, carcinoid tumors, gastrointestinal stromal tumors, and leiomyosarcoma apparently located in the extraperitoneal rectum. We analyzed operating time, morbidity and mortality rates, length of hospital stay, staging discrepancy, recurrence rate, and oncological outcome. RESULTS: From January 1993 to January 2007, 300 patients underwent transanal endoscopic microsurgery at our institution. The mean operating time was 66 minutes. The peritoneum was inadvertently opened in 13 cases. The overall morbidity rate was 7.7%. The mean hospital stay was five days. Histology demonstrated cancer in 90 patients. At a mean follow-up of 60 months, the recurrence rate was zero in pT1, 24% in pT2, and 50% in pT3. The overall estimated five-year survival rate was 87%, and the disease-free survival rate was 82%. CONCLUSIONS: Transanal endoscopic microsurgery is safe and effective in the treatment of adenoma and pT1 carcinoma; it carries a lower morbidity than conventional surgery and a recurrence rate comparable to that of conventional surgery.
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