Preoperative Walking Evaluation and Postoperative Outcome
NCT ID: NCT06023069
Last Updated: 2025-09-03
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
264 participants
OBSERVATIONAL
2023-09-01
2026-12-31
Brief Summary
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Self-reporting of physical activity is prone to be unreliable. In order to obtain a better picture of patients' physical activity, we intend to investigate the association between the average number of steps and postoperative outcomes. Many other objective measures of physical activity are costly and time-consuming to perform; for example, exercise tests, extensive sampling, and longer questionnaires.
The primary research question is: Do patients with a higher degree of physical activity, measured as the average number of steps recorded on the patient's mobile phone, have a reduced risk of peri/postoperative complications and death, measured as Days At Home alive at 30 days (DAH30)?
Secondary research questions include:
Is physical activity, measured as the average number of steps recorded on the patient's mobile phone, linearly linked to DAH30? Is physical activity, measured as the average number of steps recorded on the patient's mobile phone, associated with specific peri/postoperative organ impact, such as lung, heart, cerebral, infection, or kidney complications? Is physical activity, measured as the average number of steps recorded on the patient's mobile phone, also linked to long-term outcomes one year after surgery? Is physical activity, measured as the average number of steps recorded on the patient's mobile phone, solely associated with DAH30 and organ complications for specific patient groups in terms of age, comorbidities, and/or type of surgery?
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Detailed Description
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Procedures/Data Collection Preoperatively: The investigators will record age, gender, comorbidities, and ongoing medication, as well as ASA classification, frailty score, and mDASI (modified Duke Activity Status Index), which is a measure of functional ability. Routine preoperative laboratory tests will be noted. Furthermore, the investigators intend to record average physical activity, including daily step count on average at one, six, and twelve months before surgery, based on data from the patient's mobile phone\*. Type of planned surgery will be recorded.
\*The dominant mobile phones on the market (iOS and Android-based) use different types of systems to count steps. Some mobile phones completely lack such systems. The validation of how accurately they count steps per day also varies. We will record the model and operating system, as well as the type of app used. Not all patients carry their phones all the time; we intend to register their own estimate of how often it is carried. A few patients do not have a mobile phone and cannot contribute step per day data.
Intraoperatively: The investigators will record anesthesia method, operation time (incision time and total operation time), fluid balance, bleeding, and transfusion requirements, as well as adverse events such as blood pressure drops, hypoxia, tachycardia.
Conditions
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Study Design
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COHORT
PROSPECTIVE
Interventions
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Number of steps recorded by mobile phone as a proxy for physical activity
This cohort is likely to have patients with many steps/day (high activity) and few steps/day (low activity)
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
18 Years
ALL
No
Sponsors
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Karolinska Institutet
OTHER
Responsible Party
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Max Bell
MD, PhD
Principal Investigators
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Max Bell
Role: PRINCIPAL_INVESTIGATOR
N32276 PMI/Karolinska
Locations
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Karolinska University Hospital
Stockholm, , Sweden
Countries
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Central Contacts
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Facility Contacts
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Other Identifiers
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N32276 PMI/Karolinska
Identifier Type: -
Identifier Source: org_study_id
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