Fluid Day Spanish Observational Study

Perioperative fluid therapy has undergone a huge change in clinical practice in recent years. The patterns of replacement and / or restoration of volemia described in the classic anaesthesiology books were supported by weak scientific evidence, and a paradigm shift in perioperative fluid therapy based on aspects such as increased mortality associated with an excessively positive balance of fluids in the perioperative period, evidences related to the non-existence of the third non-anatomical space and the need to preserve the capillary endothelium and its glycocalyx. On the other hand, advances in technology, through the availability of less invasive monitoring systems, capable of determining dynamic parameters related to blood volume that allow predicting the response to volume management, have provided much more adequate monitoring and simple to guide such intravenous volume restoration. Following all these changes different guidelines and recommendations have been published in recent years with the intention of clarifying the current evidence and facilitate the correct use of fluid therapy to clinicians, but despite this the fact is that today the investigators still do not have information on how fluid therapy is administered in daily practice, so the section of Hemostasis, Transfusion Medicine and Fluid Therapy of SEDAR, considered it necessary to evaluate the clinical practice of fluid therapy in the perioperative period through the Fluidday study.