Application of alveolar recruitment strategy and positive end-expiratory pressure combined with autoflow in the one-lung ventilation during thoracic surgery in obese patients.

Background: The present study aims to evaluate the influence of alveolar recruitment strategy (ARS) and positive end-expiratory pressure (PEEP) combined with autoflow on respiratory mechanics, the oxygen index (OI), pulmonary shut [Qs/Qt(%)], and the concentrations of IL-6 and TNF-α in venous blood after surgery in obese patients who experienced thoracic surgery with one-lung ventilation (OLV).

Methods: A total of 36 obese patients with ASAII-III degree, who experienced selective pulmonary lobectomy, were within 36-74 years old, and had a BMI of 30-40 kg/m, were randomly divided into two groups: control group (C group) and protective ventilation group (P group). In the P group, ARS was given once when OLV began.

[A comparison of double-lumen endotracheal tube with univent blocker and bronchial blocker during thoracic surgical anesthesia].

Objective: To compare the effectiveness of lung isolation among double-lumen endotracheal tube, Univent blocker and bronchial blocker during thoracic surgical anesthesia.

Methods: A total of 120 patients undergoing elective thoracic surgery were enrolled. They were intubated with Mallinckrodt DLT (DLT group, n = 40), Univent blocker (UNI group, n = 40) and Coopdech bronchial blocker (BB group, n = 40) after intravenous anesthesia induction.