• Jaume Mesquida, Guillem Gruartmoner, and Ricard Ferrer.
• aCritical Care Department, Hospital de Sabadell, Corporació Sanitària Universitària Parc Taulí, Universitat Autònoma de Barcelona, Sabadell bIntensive Care Department, Vall d'Hebron University Hospital, Autonomous University of Barcelona cCIBER Enfermedades Respiratorias dShock, Organ Dysfunction and Resuscitation Research Group (SODIR), VHIR, Barcelona, Spain.
• Curr Opin Crit Care. 2017 Jun 1; 23 (3): 237-243.

Purpose Of ReviewTo evaluate the existing evidence on the passive leg raising (PLR) test for fluid responsiveness prediction.Recent FindingsIt has been well established that either insufficient or excessive fluid administration derives in worse outcomes in critically ill patients, highlighting that a more accurate assessment of fluid management is required. Accordingly, several cardiovascular indices have been tested to improve our ability to predict patients' response to fluid loading at the bedside, the so-called functional hemodynamic monitoring. The standardized PLR is a relatively novel maneuver that, over the past 10 years, has repeatedly demonstrated high sensitivity and specificity for fluid responsiveness prediction.SummaryThe current review underlines that PLR is an easy-to-perform and reliable method to assess fluid responsiveness. Its excellent performance is maintained even in many situations in which other dynamic predictive indices are not consistent and represents a valid alternative to the fluid challenge to avoid unnecessary volume administration.

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