Global end-diastolic volume could be more appropiate to reduce intraoperative bleeding than central venous pressure during major liver transection.

Background: Central venous pressure often fails to identify the true value of cardiac preload. Our purpose is to investigate whether Global End-Diastolic Volume (GEDV) values can control hemodynamic parameters for the measurement of fluid volume, cardiac preload and blood loss during liver transection.

Methods: This was a prospective clinical study that included patients undergoing liver resection.

Helmet noninvasive mechanical ventilation in patients with acute postoperative respiratory failure.

Background: The physiological and clinical effects of noninvasive ventilation (NIV) on acute postoperative respiratory failure are relatively unknown. The aim of this study was to determine the prediction factors for failure in the use of NIV with a helmet in this context.

Methods: This was a prospective observational study.