NCT03010852

Brief Summary

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.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jul 2016

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 1, 2016

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

December 7, 2016

Completed
29 days until next milestone

First Posted

Study publicly available on registry

January 5, 2017

Completed
3.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2020

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2020

Completed
Last Updated

February 12, 2021

Status Verified

February 1, 2021

Enrollment Period

4.1 years

First QC Date

December 7, 2016

Last Update Submit

February 11, 2021

Conditions

Keywords

Bariatric SurgerySpirometry Monitoring

Outcome Measures

Primary Outcomes (1)

  • Frequency of at least one episode of moderate/severe hypoxemic event

    During first post operative day

Secondary Outcomes (2)

  • Duration of postoperative oxygen therapy

    Up to 7 days after surgery

  • Presence of postoperative oxygen therapy and postoperative hypoxemic events

    Up to 7 days after surgery

Study Arms (2)

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.

Behavioral: Focused incentive spirometer education and monitoring

Interventions

Focused incentive spirometer education and monitoring

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients having planned elective bariatric surgery at University of Colorado Hospital

You may not qualify if:

  • Emergency procedure
  • Oxygen therapy within the previous 30 days
  • Smoking within the previous 30 days
  • Inability or refusal to provide consent

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Colorado Hospital

Aurora, Colorado, 80045, United States

Location

Study Officials

  • Ana Fernandez-Bustamante, M.D., Ph.D.

    University of Colorado, School of Medicine - Department of Anesthesology

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 7, 2016

First Posted

January 5, 2017

Study Start

July 1, 2016

Primary Completion

August 1, 2020

Study Completion

December 1, 2020

Last Updated

February 12, 2021

Record last verified: 2021-02

Data Sharing

IPD Sharing
Will not share

N/A IPD will not be shared with other researchers

Locations