An interventional study of Alarms ON in Hypoxemia, sponsored by University of Colorado, Denver. Not yet recruiting. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-08-31.
Sponsored by University of Colorado, Denver · Not applicable, Interventional, and Prevention
The purpose of this study is to test whether automatic reminders with a light and a soft sound help patients improve deep breathing exercises after surgery. These breathing exercises are routinely done with the help of a plastic device that you attach to your mouth and you take a deep breath. These exercises are routinely recommended after major surgery to improve the oxygen level in your blood and reduce other respiratory problems.
The goal of this project is to evaluate whether automatic reminders increase incentive spirometry performance (IS) and reduce hypoxemia during the first three postoperative days after inpatient non-cardiac surgery in patients with a preoperative ARISCAT risk score ≥26.
This three-center pilot study will first test the effectiveness of automatic IS reminders, compared to no reminders, on the quality of performance for three postoperative days after inpatient non-cardiac surgery. Then we will estimate the effect size of IS reminders on postoperative hypoxemia and other complications.
1,076 studies on the registry are indexed under Hypoxia; 213 are open to participants now.
This study's planned enrollment of 88 is above the median of 45 across 769 interventional studies indexed under Hypoxia.
Browse Hypoxia studies →University of Colorado, Denver is the lead sponsor of 1,543 studies on the registry; 317 are open to participants now.
Of its 147 completed or terminated interventional studies of FDA-regulated products, 92 (63%) have results posted.
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Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
A soft buzz and blinking light emitted from the incentive spirometer base attachment (monitor) will go off every twenty minutes during waking hours after major surgery.
Device: Alarms ON
The patient will be given an incentive spirometer with the base attachment (monitor). No light or soft buzz will be emitted from the device.
Alarms are turned ON. The alarms include a dim light and soft buzz every twenty minutes during waking hours.
Median IS breaths per hour
Median adequate IS breaths per hour within eligible hours of all patients in each reminder group
Time frame: Post-Anesthesia Care Unit (PACU) admission to postoperative day 3 (POD3)
Hypoxemia
Hypoxemia will be calculated using the trapezoidal rule when PaO₂/FiO₂ \< 300. The total time with hypoxemia for each POD will be observed using the area-under-curve (AUC); i.e., the use of the area under the oxygen saturation curve
Time frame: From post-anesthesia care unit (PACU) admission to postoperative day 3 (POD3)
No study locations are listed for this record.
Plan to share: No — Patient privacy protection
This study is not yet recruiting, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.
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University of Colorado, Denver →