Assessment of thoracic fluid volume in polytrauma patients with different body mass indexes under standard and restrictive infusion therapy regimens

Background. Capillary-leak-driven fluid overload is a frequent complication in polytrauma, and obesity further amplifies this risk because standard body-weight– based resuscitation may overestimate the true distribution volume. Purpose – to evaluate how different body-mass-index categories and two infusionvolume calculation strategies influence thoracic fluid accumulation during the first week after injury.