Oxygenation Test During General Anesthesia

Morbid Obesity Clinical Trial

Official title: Application of Protective Ventilation Improves Oxygenation During and After Anesthesia. Is it Possible That a Special Procedure, an Oxygenation Test, Can Replace Arterial Blood Gases When Evaluating Oxygenation?

Status Completed

Clinical Trial Summary

The study investigates if applying a special ventilatory strategy during anesthesia for laparoscopic gastric by pass, produces less atelectasis and better oxygenation in spite of using 100 % oxygen during pre oxygenation and induction of anesthesia. The study investigates oxygenation with blood gas samples but also with a new method that might give more information without the use of blood gas samples.

Primary: Oxygenation in patients with morbid obesity improves if preoxygenation, induction and maintenance of anesthesia is performed with either a continuous positive airway pressure (CPAP) or a positive end expiratory pressure (PEEP), respectively, of 10 cm H2O, in comparison to a technique without CPAP but with a PEEP of 10 cm H2O.

Secondary: The improved oxygenation during anesthesia can be prolonged inte the postoperative period if emergence from anesthesia is performed without high levels of oxygen.

Clinical Trial Description

n/a

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Factorial Assignment, Masking: Single Blind (Subject), Primary Purpose: Treatment

Related Conditions & MeSH terms

• Morbid Obesity
• Obesity, Morbid

• NCT number: NCT01559402
• Study type: Interventional
• Source: Landstinget Västmanland
• Status: Completed
• Phase: N/A
• Start date: March 2012
• Completion date: March 2014