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Prospective Repeated-Measures Study of Popliteal Vein Diameter During the First 48 Hours After Commercial Air Travel to Bogota for a Plastic Surgery Intervention
Sponsor: Research Inc
Summary
This prospective repeated-measures study will evaluate how long popliteal vein dilation persists after international commercial air travel to Bogota. Adult medical travelers will undergo standardized bilateral popliteal vein ultrasound within 24 hours before departure, within 2 hours after arrival, and at 24 and 48 hours after arrival, all before surgery. The primary outcome is change in mean bilateral popliteal vein diameter over time.
Key Details
Gender
All
Age Range
18 Years - 65 Years
Study Type
OBSERVATIONAL
Enrollment
100
Start Date
2024-01-12
Completion Date
2026-12-01
Last Updated
2026-09-08
Healthy Volunteers
No
Conditions
Interventions
Commercial Air Travel Exposure
Participants complete a commercial flight of at least 4 hours to Bogota. Flight duration, connections, cabin class, seat characteristics, movement, fluid intake, alcohol, sedatives, and compression stocking use will be recorded. Linked arm/group(s): Postflight Repeated-Measures Cohort.
Standardized Bilateral Popliteal Vein Duplex Ultrasound
After at least 10 minutes of supine rest, the popliteal vein will be imaged at a fixed landmark with minimal probe pressure. Anteroposterior and transverse diameters, cross-sectional area, compressibility, and flow will be recorded in both legs, with three repeated measurements averaged. Linked arm/group(s): Postflight Repeated-Measures Cohort.
Locations (1)
Clinica INO
Bogotá, Colombia