Undernutrition is the result of energy and protein deficiency and / or catabolic. These phenomena are observed daily in patients awaiting lung transplantation.

After lung transplantation that undernutrition is growing (on average 11% weight loss after the first observations in the continuing care of the University Hospital of Strasbourg). In other words the non-malnourished patients become. Hence the importance to reach every patient awaiting transplant, mainly to patients already malnourished before surgery.

Several studies have shown that early nutritional support has a direct effect on reducing comorbidities and the average length of stay. In the course of care of these patients it is necessary to intensify the dietary management to give them the best chance for early rehabilitation.

The main objective of the study is to evaluate the impact of the use of the SFNEP's nutritional care decision-making tree (Société Francophone Nutrition Clinique et Métabolisme) on the implementation of enteral nutrition by gastrostomy tube in patients awaiting for lung transplantation.

Inclusion criteria:

transplant patients between January 1, 2012 and December 31, 2015 aged over 16 years, with a BMI <25 at the time of pre-transplant assessment and that not oppose the use of his data.

Exclusion criteria:

• Cardiopulmonary Transplant Patients
• refusal to participate in the study

transplant patients between January 1, 2012 and December 31, 2015 aged over 16 years, with a BMI <25 at the time of pre-transplant assessment