Anesthesia-induced atelectasis persist in the postoperative period but are not usually diagnosed because imaging techniques are required. The aim of the study is to determine whether the value of SpO2≤96 while breathing room air (0.21 FiO2) for 5 min, maneuver that we defined as the Air Test, was able to diagnose atelectasis in the postoperative period after a general anesthesia.
Study Type
OBSERVATIONAL
Enrollment
181
The Air Test simply consisted in breathing room air for 5 min on arrival into the postoperative anesthesia care unit while measuring peripheral oxygen saturation by Pulse oximetry
Department of Anesthesia and Critical Care; Hospital Clinico Universitario
Valencia, Valencia, Spain
Presence of postoperative atelectasis meassured by SpO2 levels and confirmed by computed tomography.
After arrival to the post-surgery unit, patients received supplemental oxygen through a venturi mask with flow adjusted to approximate a FiO2 of 0.5 during the first 30 minutes. The SpO2 measure was made removing the oxygen mask and leaving the patients to breath room air for at least for 5 minutes.
Time frame: 35 minutes post-surgery
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