Several studies on perioperative fluid management have reported that 'high volume' regimens may result in overhydration having deleterious effects on cardiac and pulmonary function, recovery of GI motility, tissue oxygenation, wound healing and coagulation. Most reported randomized trials suggest that perioperative fluid management has evolved to a more restricted regimen. Specifically, restricted fluid volumes applied during bariatric procedures have been shown to reduce perioperative complications (pulmonary dysfunction, hypoxia, nausea and vomiting), thereby decrease the prevalence of morbidity and mortality associated with such procedures.