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Pulse Oximetry With Automated Verbal Prompts

Prevention of Post Operative Hypoxia in the Post Anesthesia Care Unit Using Pulse Oximetry With Automated Verbal Prompts

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02930863
Enrollment
89
Registered
2016-10-12
Start date
2016-11-30
Completion date
2019-08-13
Last updated
2019-08-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hypoxemia

Brief summary

This study will evaluate the effectiveness of an automated voice prompting system on post operative hypoxia within the Postoperative Anesthesia Care Unit (PACU). This will be done to detect an improvement of the patient experience and provider care through a decrease in the number of peripheral capillary oxygen saturation (SpO2) monitor alarms via the patients own ability to follow the instruction and improve their SpO2 levels.

Detailed description

The investigators will examine and observe the patient's stay in the PACU and utilize the pulse oximetry software and data to analyze the ability to evaluate the difference in patient oxygenation levels and supplemental oxygen use with automated verbal prompted monitoring versus a standard care control group. As well as determine if automated verbal prompted monitoring leads to less monitor alarms and subsequent improvement of subjective alarm fatigue and patient satisfaction with their care versus standard care. The pulse oximeter will have a finger probe that will be attached to the patient's middle finger to read the patient's SpO2 levels. Each time the participant's pulse oximetry value declines to 93% or less, an automated verbal prompt, created via the software, will generate as a soft prompt. This will be followed up by a hard prompt if no improvement is seen in their oxygenation level after a period of time. A positive feedback elicitation will be given if the participant's saturation levels increase above 93%. This automated verbal prompt guidance will take place during the entirety of the investigational group's PACU stay.

Interventions

OTHERpulse oximetry software

This pulse oximetry software will utilize automated verbal prompts that direct the patients to breathe when their pulse oximetry reading falls at or below 93%.

BEHAVIORALBrief post-PACU stay survey.

Complete a brief post-PACU stay survey focused around their satisfaction and experience during their time in the PACU.

Sponsors

University of Florida
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* planned general anesthetic * ability to provide informed consent

Exclusion criteria

* use of regional anesthesia * altered mental status * hearing impairment requiring assistive devices * inability to hear normal conversational voice during the consent process * inability preoperatively to squeeze probe finger against thumb for any reason * baseline SpO2 less than or equal to 93% (on room air or baseline home oxygen requirement) * history of methemoglobinemia * suspected or confirmed carbon monoxide (CO) poisoning * planned admission to an intensive care unit

Design outcomes

Primary

MeasureTime frameDescription
Change in the frequency of a participant's SpO2 level falling below 87%Change from baseline up to 24 hoursSpO2 will be monitored using the standard pulse oximeter system

Secondary

MeasureTime frameDescription
Change between the study groups number of pulse oximetry alarmsChange from baseline up to 24 hoursSpO2 will be monitored using the standard physiologic monitoring system
Change between the study groups level of alarm fatigueChange from baseline up to 24 hoursNumber of participants reporting a decreased level of alarm noise
Change between the study groups level of postoperative care satisfactionChange from baseline up to 24 hoursNumber of participants reporting alarm noise affected their level of postoperative care satisfaction

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026