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Prospective Stratified Randomized Four-Group Study of Cabin Class and Graduated Compression Stockings on Popliteal Vein Dilation After Long-Haul Air Travel After Aesthetic Surgery
Sponsor: Research Inc
Summary
This four-group prospective study will enroll travelers who have independently booked economy or premium business/first-class flights to Bogota. Within each cabin stratum, participants will be randomized to moderate graduated compression stockings or no stockings. Bilateral popliteal vein ultrasound will be performed before flight, within 2 hours after arrival, and at 24 and 48 hours. The primary outcome is the interaction between cabin class and compression assignment for change in mean bilateral popliteal vein diameter.
Key Details
Gender
All
Age Range
18 Years - 65 Years
Study Type
INTERVENTIONAL
Enrollment
200
Start Date
2024-01-12
Completion Date
2026-12-01
Last Updated
2026-09-09
Healthy Volunteers
No
Conditions
Interventions
Knee-High Graduated Compression Stockings
PROPOSED pressure class: 20-30 mmHg at the ankle, properly fitted and worn from approximately 1 hour before boarding through the arrival ultrasound. Product and pressure class require confirmation. Linked arm/group(s): Economy Cabin Plus Compression, Premium Cabin Plus Compression.
Economy Cabin Exposure
Prebooked and completed economy-cabin travel; seat characteristics and behavior are measured but not assigned. Linked arm/group(s): Economy Cabin Plus Compression, Economy Cabin Without Compression.
Premium Cabin Exposure
Prebooked and completed business/first-class travel; seat characteristics and behavior are measured but not assigned. Linked arm/group(s): Premium Cabin Plus Compression, Premium Cabin Without Compression.
Standardized Bilateral Popliteal Vein Ultrasound
Triplicate bilateral diameter and cross-sectional-area measurements before flight and at arrival, 24 hours, and 48 hours by an assessor masked to stocking allocation. Linked arm/group(s): Economy Cabin Plus Compression, Economy Cabin Without Compression, Premium Cabin Plus Compression, Premium Cabin Without Compression.
Locations (1)
Clinica INO
Bogotá, Colombia