[Management and clinical outcome in patients over 80 years with rectal cancer treated between 2006 and 2008 in Southern France (PACA region)]. / Prise en charge et devenir des patients de plus de 80ans atteints d'un cancer du rectum, en région Provence-Alpes-Côte-d'Azur de 2006 à 2008.

PURPOSE: Rectal cancer is increasingly prevalent in elderly patients. Their clinical history and outcome after treatment are poorly described. This retrospective study was undertaken to provide more data and to compare therapeutic strategies to the standard of care for younger patients. PATIENTS AND METHODS: Patients concerned were aged 80 years or older, with a rectal cancer diagnosed between 2006 and 2008 and treated in Provence-Alpes-Côte-d'Azur (PACA), irrespective of stage and treatment of the disease. Overall survival and relapse-free-survival were correlated with patients' characteristics and treatment. The adopted therapeutic strategy was then compared to the standard-of-care for younger patients. RESULTS: With a median follow-up of 36 months, among the 160 patients included, the 3-year overall survival and relapse-free survival were 59.2% and 76.6%, respectively for the 117 patients who received a treatment with curative intent. In the multivariate analysis, node status and surgery independently influenced overall survival, while relapse-free survival was influenced by age, N status, and gender. For T0-T2 tumours, patients were treated similarly to younger patients with an overall survival of 83.6% and a relapse-free survival of 95.2%. For T3-T4 tumours, the 3-year relapse-free survival was 65%, even with a less aggressive strategy. CONCLUSION: Surgical resection after evaluation using the Comprehensive Geriatric Assessment (CGA) test should be the standard treatment for localized rectal cancer (T0-T2) in elderly patients, as it is in younger patients. For locally advanced lesions (T3-T4), results obtained after a conservative approach suggest that a non-surgical strategy can be used in elderly patients.