Oedematous Lower Limb Subcutaneous Drainage in Palliative Care

* Background : Edema of lower extremities is a concern ranging from 19 % to 60% of palliative cancer patients. Lymphedema decreases mobility, induces pain, impacts daily activities, esthetic and behavior. Usual treatment is based on diuretics and physiotherapy but is often unsuccessful. In case of conventional treatment failure, in palliative care, subcutaneous drainage can be discussed with the patients. The technique is simple, easy to use but remains off the record. Since 2004, 23 cases were reported with various methods. All the cases reported were undertaken with various technical approaches and efficacy criteria. * Purpose : Investigator hypothesize that the subcutaneous drainage of edema (SDO) is effective in case of refractory lymphedema of the lower limbs in palliative care and leads to an improvement in QOL in terms of behavioral and autonomy.