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Postoperative (PO) hypoventilation, atelectasis and hypoxemia after bariatric surgery are common and multifactorial, contributing to prolonged oxygen (O2) therapy after surgery and even at hospital discharge. Incentive spirometry (IS) is recommended postoperatively but its success in preventing postoperative atelectasis and hypoxemia (POH) heavily depends on patient compliance with IS effort and frequency. The investigators hypothesize that a focused education preoperatively on IS for POH and intensive monitoring of patient compliance with IS therapy in the early postoperative period shortens postoperative oxygen therapy, decreases POH episodes, and improves respiratory outcomes after bariatric surgery, compared to patients receiving standard of care.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Standard of care incentive spirometer | No Intervention | Patients in the SOC cohort will not receive the preoperative education and only one postoperative visit per day to collect their self-reported use of IS, if prescribed, and respiratory symptoms but avoiding increasing their awareness of POH, O2 therapy and IS. | |
| Focused incentive spirometer education and monitoring | Experimental | One of the study investigators will meet eligible patients in the preoperative visit to the UCH Weight Loss Surgery clinic, inform and consent the patient and introduce the first education on IS therapy, highlighting its possible benefits and the importance of compliance (patient's inspiratory effort and frequency). This IS education will be repeated in the preoperative area immediately before surgery. The site will then follow the patient postoperatively. The site will directly check on the patient in the PACU and later in his/her hospital room at least 3 times a day during the first 3 days or sooner if their O2 therapy is discontinued for 2h. During these PO check ups The site will reinforce the IS use, monitor the patient's performance of IS and ask him/her about other respiratory symptoms. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Focused incentive spirometer education and monitoring | Behavioral |
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| Measure | Description | Time Frame |
|---|---|---|
| Frequency of at least one episode of moderate/severe hypoxemic event | During first post operative day |
| Measure | Description | Time Frame |
|---|---|---|
| Duration of postoperative oxygen therapy | The duration of postoperative oxygen therapy will be evaluated from the arrival to the post-anesthesia care unit to successful discontinuation of oxygen therapy lasting greater than 2 hours. | Up to 7 days after surgery |
| Presence of postoperative oxygen therapy and postoperative hypoxemic events |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Ana Fernandez-Bustamante, M.D., Ph.D. | University of Colorado, School of Medicine - Department of Anesthesology | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Colorado Hospital | Aurora | Colorado | 80045 | United States |
N/A IPD will not be shared with other researchers
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The development of postoperative hypoxemic events will be evaluated from the initiation of post-operative oxygen therapy through hospital discharge. |
| Up to 7 days after surgery |