Neoadjuvant Chemoradiotherapy for Advanced Rectal Cancer

Document Type : Original Article

Authors

1 Professor of general surgery and surgical oncology, Imam Khomeini Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran & Petroleum & Environmental Pollutant Cancer Research Center.

2 Assistant Professor of radiotherapy and oncology, Department of Radiotherapy and Oncology, Golestan Hospital, Ahvaz Jundishapur University of Medical Science, Ahvaz, Iran

3 Professor of general surgery, Department of Surgery, Imam Khomeini Hospital, Ahvaz Jundishapur University of Medical Science, Ahvaz, Iran

4 General Surgeon, Department of Surgery, Razi Hospital, Ahvaz Jundishapur University of Medical Science, Ahvaz, Iran.

Abstract

Introduction: There is some evidence that neoadjuvant chemoradiation for stages II and III rectal tumors associated with significant greater rate of complete pathologic response and sphincter preservation. The aim of this study was to determine the outcome of neoadjuvant chemoradiation in patients with advanced rectal cancer.
Materials and Methods: In this retrospective investigation, the medical records of all patients with stage II or III that underwent neoadjuvant chemoradiation (during 2005-2010) were studied. Radiotherapy was delivered by 4500-5000cGy/25-28f for 25-28 sessions, and oral 5-FU and weekly injected Eloxatin were administered. Then, all patients underwent surgery by one expert oncologist surgeon. Data include demographic data, the kind of operation, the rate of pathologic complete response and clear surgical margins and sphincter preservation were collected. Data were analyzed with SPSS software version 14.
Results: Among70 patients, the mean age was 46±13 years and 71.5% of them were male.Ten percent had the pathologic complete response, 60% had clear surgical margins. Sphincter preservation rate in cases which the distance of the tumor from anal verge was five cm or more and in cases which it was less than five cm were 51.4% and 5.6%, respectively.
Conclusion: Our results indicated that neoadjuvant chemoradiation recommended for patients with the stages II and III rectal cancers. The advantages of this modality are relatively higher chance of complete response and anal sphincter saving procedure.

Highlights

Abdolhassan Talaiezadeh (PubMed)(Google Scholar)

Keywords


References
1. https://seer.cancer.gov/statfacts/html/colorect.html 2.Ryan R, Gibbons D, Hyland JM, Treanor D, White A, Mulcahy HE, O'donoghue DP, Moriarty M, Fennelly D, Sheahan K. Pathological response following long‐course neoadjuvantchemoradiotherapy for locally advanced rectal cancer. Histopathology. 2005 Aug 1;47(2):141-6. 3.Ansari R, Mahdavinia M, Sadjadi A, Nouraie M, Kamangar F, Bishehsari F, Fakheri H, Semnani S, Arshi S, Zahedi MJ, Darvish-Moghadam S. Incidence and age distribution of colorectal cancer in Iran: results of a population-based cancer registry. Cancer letters. 2006 Aug 18;240(1):143-7.
4.Capirci C, Valentini V, Cionini L, De Paoli A, Rodel C, Glynne-Jones R, Coco C, Romano M, Mantello G, Palazzi S, Mattia FO. Prognostic value of pathologic complete response after neoadjuvant therapy in locally advanced rectal cancer: long-term analysis of 566 ypCR patients. International Journal of Radiation Oncology Biology Physics. 2008 Sep 1;72(1):99-107.
5.Kapiteijn E, Marijnen CA, Nagtegaal ID, et al. Preoperative radiotherapy combined with total mesorectal excision for resectable rectal cancer. N Engl J Med 2001; 345:638–646[PubMed: 11547717] 6.Kapiteijn E, Van De Velde CJ. The role of total mesorectal excision in the management of rectal cancer. Surg. Clin. North Am. 2002; 82; 995–1007. 7.Cedermark B, Dahlberg M, Glimelius B, Påhlman L, Rutqvist LE, Wilking N. Improved survival with preoperative radiotherapy in resectable rectal cancer. NEJM. 1997 Apr;336(14):980-7. 8.Russo S, Steele S, Fredman E, Biswas T. Current topics in the multimodality treatment of locally advanced rectal cancer. Future Oncology. 2016 Apr;12(7):963-79.
9.Dalal KM. Bleday R. cancer of the rectum. Zinner MJ. Ashley SW. MAINGOT’S abdominal operations.11th edition. Boston. McGraw-Hill com, Inc.2007: 693-723 2.Kapiteijn E, Marijnen CA, Nagtegaal ID, et al. Preoperative radiotherapy combined with total mesorectal excision for resectable rectal cancer. N Engl J Med 2001; 345:638–646[PubMed: 11547717]
10. Swedish Rectal Cancer Trial. Improved survival with preoperative radiotherapy in respectable rectal cancer. N Engl J Med 1997; 336:980–987
11. Sauer R, Becker H, Hohenberger W, et al. Preoperative versus postoperative chemo radiotherapy for rectal cancer. N Engl J Med 2004; 351:1731–1740 [PubMed: 15496622]
12.Eich HT, Stepien A,Neoadjuvantradiochemotherapy and surgery for advanced rectal cancer: Prognostic significance of tumor regression, strahlentheronkol, 2011Apr, 187(4); 225-230.
13.Sara popek, vassilikiTsikitis, Neoadjuvant vs. adjuvant pelvic radiotherapy for locally advanced rectal cancer: Which is superior? World j Gastroenterenteral. 2011 Feb 21; 17(7): 848–854.