PMID- 23608237 OWN - NLM STAT- MEDLINE DCOM- 20131024 LR - 20181202 IS - 1879-355X (Electronic) IS - 0360-3016 (Linking) VI - 87 IP - 1 DP - 2013 Sep 1 TI - Elective inguinal node irradiation in early-stage T2N0 anal cancer: prognostic impact on locoregional control. PG - 60-6 LID - S0360-3016(13)00269-1 [pii] LID - 10.1016/j.ijrobp.2013.03.008 [doi] AB - PURPOSE: To evaluate the influence of elective inguinal node radiation therapy (INRT) on locoregional control (LRC) in patients with early-stage T2N0 anal cancer treated conservatively with primary RT. METHODS AND MATERIALS: Between 1976 and 2008, 116 patients with T2 node-negative anal cancer were treated curatively with RT alone (n=48) or by combined chemoradiation therapy (CRT) (n=68) incorporating mitomycin C and 5-fluorouracil. Sixty-four percent of the patients (n=74) received elective INRT. RESULTS: Over a median follow-up of 69 months (range, 4-243 months), 97 (84%) and 95 patients (82%) were locally and locoregionally controlled, respectively. Rates for 5-year actuarial local control, LRC, cancer-specific, and overall survival for the entire population were 81.7% +/- 3.8%, 79.2% +/- 4.1%, 91.1% +/- 3.0%, and 72.1% +/- 4.5%, respectively. The overall 5-year inguinal relapse-free survival was 92.3% +/- 2.9%. Isolated inguinal recurrence occurred in 2 patients (4.7%) treated without INRT, whereas no groin relapse was observed in those treated with INRT. The 5-year LRC rates for patients treated with and without INRT and with RT alone versus combined CRT were 80.1% +/- 5.0% versus 77.8% +/- 7.0% (P=.967) and 71.0% +/- 7.2% versus 85.4% +/- 4.5% (P=.147), respectively. A trend toward a higher rate of grade >/=3 acute toxicity was observed in patients treated with INRT (53% vs 31%, P=.076). CONCLUSIONS: In cases of node-negative T2 anal cancer, the inguinal relapse rate remains relatively low with or without INRT. The role of INRT in the treatment of early-stage anal carcinoma needs to be investigated in future prospective trials. CI - Copyright (c) 2013 Elsevier Inc. All rights reserved. FAU - Zilli, Thomas AU - Zilli T AD - Department of Radiation Oncology, Geneva University Hospital, Geneva, Switzerland. Thomas.Zilli@hcuge.ch FAU - Betz, Michael AU - Betz M FAU - Bieri, Sabine AU - Bieri S FAU - Ris, Frederic AU - Ris F FAU - Roche, Bruno AU - Roche B FAU - Roth, Arnaud D AU - Roth AD FAU - Allal, Abdelkarim S AU - Allal AS LA - eng PT - Journal Article DEP - 20130419 PL - United States TA - Int J Radiat Oncol Biol Phys JT - International journal of radiation oncology, biology, physics JID - 7603616 RN - 50SG953SK6 (Mitomycin) RN - U3P01618RT (Fluorouracil) SB - IM CIN - Int J Radiat Oncol Biol Phys. 2013 Sep 1;87(1):13-5. PMID: 23920385 MH - Adult MH - Aged MH - Aged, 80 and over MH - Antineoplastic Combined Chemotherapy Protocols/therapeutic use MH - Anus Neoplasms/drug therapy/pathology/*radiotherapy MH - Carcinoma, Squamous Cell/drug therapy/pathology/*radiotherapy MH - Carcinoma, Transitional Cell/pathology/*radiotherapy/surgery MH - Chemoradiotherapy/methods MH - Dose Fractionation, Radiation MH - Female MH - Fluorouracil/administration & dosage MH - Humans MH - Inguinal Canal MH - Lymphatic Irradiation/*methods MH - Male MH - Middle Aged MH - Mitomycin/administration & dosage MH - Neoplasm Staging MH - Retrospective Studies EDAT- 2013/04/24 06:00 MHDA- 2013/10/25 06:00 CRDT- 2013/04/24 06:00 PHST- 2012/10/25 00:00 [received] PHST- 2013/03/04 00:00 [revised] PHST- 2013/03/06 00:00 [accepted] PHST- 2013/04/24 06:00 [entrez] PHST- 2013/04/24 06:00 [pubmed] PHST- 2013/10/25 06:00 [medline] AID - S0360-3016(13)00269-1 [pii] AID - 10.1016/j.ijrobp.2013.03.008 [doi] PST - ppublish SO - Int J Radiat Oncol Biol Phys. 2013 Sep 1;87(1):60-6. doi: 10.1016/j.ijrobp.2013.03.008. Epub 2013 Apr 19.