In the literature, there are many studies on the nutritional support to be used during allografts, that highlight the superiority of enteral nutrition over parenteral nutrition in terms of reducing co-morbidities.~Enteral nutrition is the nutritional support recommended by learned societies for therapeutic intensification with autograft of autologous hematopoietic cells in hematology. Nevertheless, enteral nutrition presents difficulties in its implementation and failures (refusal of patients, probes vomiting, neutropenic colitis, etc.), requiring the use of parenteral nutrition in case of failure.~In this context, the study proposes to assess the success and effectiveness of enteral nutrition.
When the digestive tract is functional, learned societies recommend the use of a nutritional support by enteral feeding. Indeed, it has many advantages (maintenance of gut trophicity, reduction of the risk of infection by reducing the incidence of bacterial translocations,...). It has been used for about fifteen years in hematology departments and offers promising results in the context of allogeneic transplantation with prospective trials in progress (NEPHA study). However, its tolerance has not been studied during autologous transplantation. This study aims to assess the success of enteral nutrition in this setting.