Hip fracture is a frequent pathology, involving elderly patients with many co-morbidities ; therefore, post-operative morbidity and mortality is high. It is reported that intra-operative hemodynamics correlate with post-operative complications such as myocardial injury after non-cardiac surgery (MINS) or acute kidney injury (AKI) ; that is why elderly patients undergoing hip fracture surgery should benefit from a better hemodynamic stability.