The Effect of Continuous Pulse Oximetry Monitoring and Early Intervention Using Wearable Device on the Incidence of Postoperative Hypoxemia

The Effect of Continuous Pulse Oximetry Monitoring and Early Intervention Using Wearable Device on the Incidence of Postoperative Hypoxemia a Randomized Controlled Trial

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT04694599

Enrollment

Registered

2021-01-05

Start date

2021-02-01

Completion date

2021-07-01

Last updated

2021-01-05

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

Conditions

Postoperative Respiratory Complication

Brief summary

Vital signs of postoperative patient are monitored intensively in post-anesthesia care unit or intensive care unit, but the frequency of surveillance decreases in typical surgical wards. The continuous pulse oximetry in surgical wards is known to be useful in detection and prevention of hypoxemia, reducing complications caused by postoperative respiratory depression. However, continuous monitoring is not conducted, due to shortage of equipment and personnel. Recently, wearable device for measuring pulse oxygen saturation, which is inexpensive, applicable to patients with mobility, and can be monitored continuously through wireless connection, has been supplied. In this study, the investigators evaluate the effect of continuous monitoring of oxygen saturation with wireless device(MASIMO Radius-7) on postoperative patients who are transferred to general wards, and evaluate the effect of early intervention in reducing the event of hypoxemia.

Interventions

DEVICELow flow oxygen

Low flow oxygen delivered via nasal prong or facial mask. The flow rate is adjusted according to oxygen saturation of the patient.

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

PREVENTION

Masking

DOUBLE (Subject, Caregiver)

Eligibility

Sex/Gender

ALL

Age

45 Years to No maximum

Healthy volunteers

Inclusion criteria

* Patients undergoing noncardiac surgery under general anesthesia * American Society of Anesthesiologists (ASA) physical status class I-III

Exclusion criteria

* Patients refusing to participate in the study * Patients under emergency surgery * Patients who wearable device is not applicable * Patients scheduled to be transferred to intensive care unit * Patients scheduled to receive oxygen supplementation in surgical ward * Patients scheduled to undergo continuous pulse oximetry monitoring

Design outcomes

Primary

Measure	Time frame	Description
The prevalence of prolonged hypoxemic episodes	24 hours after transfer to surgical ward	the prevalence of hypoxia lasting more than 1 hour, according to a threshold of SpO2\<90%

Countries

South Korea

Contacts

Primary ContactJaehun Lee, MD

hoon147852@gmail.com+821022857835

Backup ContactHyung-Chul Lee, MD, PhD

vital@snu.ac.kr

Outcome results

None listed

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