Among the complications of heart transplant, primary dysfunction of the graft (PDG) is the most feared with a net impact on early morbidity and mortality. The all-cause mortality rate at the international level is 10% at 30 days and 34% at one year. Mortality at 30 days is secondary in 66% of cases with DPG or multi-organ failure.

The treatment of choice for the more severe PDG remains ECMO-type circulatory mechanical assistance or ventricular assistance. According to several studies, this could reduce early mortality. Early placement and short-term (<30 days) of support appear to improve survival in the first year after transplantation.

The haemodynamic parameters revealing this DPG are not clearly described in the literature.

hypothesis of this research is that:

• DPG risk factors in strasbourg's hospital center are comparable to other European and international centers.
• Simple hemodynamic parameters can be used to detect PDG earlier in order to set up assistance more quickly.

Inclusion Criteria:

• All patients who had an isolated heart transplant in the cardiac surgery department of HUS (Hôpitaux Univertsitaires de Strasbourg) between June 2008 and December 2015.

Exclusion Criteria:

• multi-organ transplants, patients with secondary graft dysfunction and those whose postoperative data were not accessible.

All patients who had an isolated heart transplant in the cardiac surgery department of HUS (Hôpitaux Univertsitaires de Strasbourg) between June 2008 and December 2015.