Postoperative Respiratory and Activity Monitoring


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This study plans to learn more about specific breathing and activity recommendations for patients after surgery. Participants will be monitored after abdominal surgery to identify what activities help them breathe better and reduce complications after surgery.

Study Overview

Start Date
December 22, 2022
Completion Date
June 22, 2025
Date Posted
February 2, 2024
Accepts Healthy Volunteers?


Full Address
UC Health
Aurora, Colorado 80045, United States


Study Population
Patients over the age of 18 undergoing abdominal surgery at the University of Colorado Health Hospital (UCHealth) that it high-risk for postoperative pulmonary complications (PPCs).
Minimum Age (years)
Maximum Age (years)
Eligibility Criteria
Inclusion Criteria:

Must be 18 or older
Must be undergoing abdominal surgery
Must be high-risk for PPCs (ARISCAT score equal to or greater than 26)

Exclusion Criteria:

Anyone under 18
Anyone not undergoing abdominal surgery
Anyone that is not high-risk for PPCs (ARISCAT score less than 26)

Study Contact Info

Study Contact Name
Emily G. Helmer
Study Contact Email
Study Contact Phone

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Other Details

FDA Regulated Drug?
FDA Regulated Device?
Detailed Description
Investigators will study adults undergoing elective abdominal surgery with at least moderate risk for postoperative pulmonary complications.

Participants will be monitored on their chest and thigh with devices that record their breathing pattern (breath volume and frequency) and body position and movements. These monitors will be placed on their skin in the Post-Anesthesia Care Unit (PACU) and will stay on for three days, or until the patient is able to ambulate freely or until their hospital discharge, whichever comes earlier. Investigators will analyze the association between the frequency, duration and intensity of various activities (e.g., sitting, walking) and breathing and other clinical complications, in combination with medications received and other hospital course events.
NCTid (if applicable)