Efficacy of veno-venous extracorporeal membrane oxygenation in severe acute respiratory failure.

Purpose: The objective of this study was to evaluate our institutional experience with veno-venous (VV) extracorporeal membrane oxygenation (ECMO) in patients with severe acute respiratory failure (ARF).

Materials And Methods: From January 2007 to August 2013, 31 patients with severe ARF that was due to various causes and refractory to mechanical ventilation with conventional therapy were supported with VV ECMO. A partial pressure of arterial oxygen (PaO₂)/inspired fraction of oxygen (FiO₂) <100 mm Hg at an FiO₂ of 1.

The effects of intravenous dexmedetomidine on spinal anesthesia: comparision of different dose of dexmedetomidine.

Background: In this prospective, randomized, double-blind, placebo-controlled trial, we tried to find out appropriate amounts of single-dose dexmedetomidine to prolong the duration of spinal anesthesia in a clinical setting.

Methods: Sixty patients who were scheduled for unilateral lower limb surgery under spinal anesthesia were randomized into three groups receiving normal saline (control group, n = 20) or 0.5 or 1.