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Barsukov Y.A.,Russian okhin Cancer Research Center | Gordeyev S.S.,Moscow State University | Tkachev S.I.,Russian okhin Cancer Research Center | Fedyanin M.Y.,Russian okhin Cancer Research Center | Perevoshikov A.G.,Russian okhin Cancer Research Center
Colorectal Disease | Year: 2013

Aim: Locally advanced fixed T4 rectal cancer has a poor prognosis and no standard treatment strategy. The aim of this study was to investigate the safety and efficacy of neoadjuvant chemoradiotherapy using hypofractionated radiotherapy combined with local hyperthermia, capecitabine, oxaliplatin and metronidazole. Method: Radiotherapy was given to a total dose of 40 Gy in 10 fractions. Capecitabine 650 mg/m2 twice a day was given on days 1-22 and intravenous oxaliplatin 50 mg/m2 was administered on days 3, 10 and 17. Local hyperthermia, 41-45°C for 60 min, was performed on days 8, 10, 15 and 17. Metronidazole 10 g/m2 was administered per rectum on days 8 and 15. Surgery was carried out within 6-8 weeks after neoadjuvant treatment. The primary end-point was R0 resection rate. Secondary end-points included 2-year disease-free survival, 2-year overall survival, local recurrence rate, grade III-IV tumour regression (Dworak) and treatment toxicity. Results: From July 2006 to February 2011, 64 previously untreated patients were enrolled. R0 resection was carried out in 59 (92.2%). Five (7.8%) remained inoperable. Seven (10.9%) patients had grade IV and 30 (46.9%) had grade III regression. The main grade III toxic events included diarrhoea (15.6%, n = 10), vomiting (3.1%, n = 2), proctitis (3.1%, n = 2) and skin reaction (1.6%, n = 1). Only one (1.6%) patient had grade IV diarrhoea and vomiting. The median follow-up was 24.9 months. Two-year overall survival was 91% and 2-year disease-free survival was 83%. Conclusion: Hyperthermia combined with chemotherapy to produce radiosensitization for locally advanced fixed primary rectal cancer is followed by a high R0 resection rate, with toxicity comparable with standard regimens. © 2013 The Association of Coloproctology of Great Britain and Ireland. Source

Rasulov A.O.,Russian okhin Cancer Research Center | Mamedli Z.Z.,Russian okhin Cancer Research Center | Gordeyev S.S.,Russian okhin Cancer Research Center | Kozlov N.A.,Russian okhin Cancer Research Center | Dzhumabaev H.E.,Russian okhin Cancer Research Center
Techniques in Coloproctology | Year: 2016

Background: Transanal total mesorectal excision (taTME) has potential benefits of better visual control, especially in male patients with a high body mass index and low rectal cancer. However, this method has not yet been validated in clinical trials. The aim of this study was to compare the short-term outcomes of transanal and laparoscopic (lap) TME. Methods: From October 2013 to January 2015, consecutive patients undergoing transanal or laparoscopic TME for biopsy-proven mrT1-4aN0-2M0 rectal cancer were included in a prospective database. Patients with Eastern Cooperative Oncology Group performance status 2 and higher and patients undergoing partial mesorectal excision were excluded. This analysis focused on short-term surgical outcomes. Results: From October 2013 to January 2015, 22 taTME procedures and 23 laparoscopic TME procedures were performed. Patient characteristics were comparable between groups, but more patients in the taTME group underwent neoadjuvant (chemo) radiotherapy (87 vs. 48 %, p = 0.006). Median operative time was 320 min in the taTME group and 305 min in the lapTME group. There was one conversion in each group, but the transanal procedure was converted to laparoscopic resection. Transanal specimen extraction was performed in 86 versus 48 % patients in taTME and lapTME groups accordingly (p = 0.021). There was no post-operative mortality and post-operative morbidity in the taTME and lapTME groups was similar (27 vs. 26 %). One patient in the taTME group had positive circumferential resection margins. Oncologic results from resected specimens were comparable. Conclusions: Our initial experience demonstrates comparable short-term results for taTME and lap TME. Further investigation is necessary to assess long-term functional and oncologic outcomes. © 2016, Springer-Verlag Italia Srl. Source

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