Maintaining Survivors??? Values of Left Ventricular Power Output during Shock Resuscitation: A Prospective Pilot Study

Objective: Maintaining left ventricular power output (LVP) > 320 mm Hg.L/ min/m 2 during resuscitation has been retrospectively associated with faster resolution of acidosis and survival after posttraumatic shock. The purpose of this prospective study was to evaluate the effects of maintaining LVP above this threshold during resuscitation on base deficit clearance, organ failure, and survival. Methods: This was a study of a consecutive series of critically injured patients (PWR) monitored with a pulmonary artery catheter during initial resuscitation. LVP, calculated as cardiac index.(mean arterial pressure-central venous pressure), was maintained >320 mm Hg.L/min/m 2 via a predefined protocol by using ventricular pressure-volume diagrams. Outcome was assessed by base deficit clearance (