Patients With ASA Status I-III Scheduled for Elective Surgery
Conditions
Brief summary
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.
Interventions
PROCEDUREAir Test
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
Sponsors
Fundación para la Investigación del Hospital Clínico de Valencia
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* ASA I-III * Scheduled for elective surgery
Exclusion criteria
* age of \<18 years * pregnant women * previous lung resection * local-regional anesthesia * cardio-thoracic anesthesia * preoperative room air SpO2 less than 97%
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Presence of postoperative atelectasis meassured by SpO2 levels and confirmed by computed tomography. | 35 minutes post-surgery | 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. |
Countries
Spain
Outcome results
None listed