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
Studieoversikt
Status
Status
Forhold
Forhold
Intervensjon / Behandling
Intervensjon / Behandling
Detaljert beskrivelse
Studietype
Studietype
Registrering (Antatt)
Registrering
Fase
Fase
- Ikke aktuelt
Kontakter og plasseringer
Studiekontakt
Studiekontakt
- Navn: hugo Aguilar, MD, Plastic surgeon
- Telefonnummer: +57 301 6918526
- E-post: havplasticacademy@gmail.com
Studiesteder
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-
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Bogotá, Colombia
- Rekruttering
- Clinica INO
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Ta kontakt med:
- hugo Aguilar, MD, Plastic surgeon
- Telefonnummer: +57 3016918526
- E-post: havplasticacademy@gmail.com
-
-
Deltakelseskriterier
Kvalifikasjonskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
- Voksen
- Eldre voksen
Tar imot friske frivillige
Beskrivelse
Inclusion Criteria:
- Age 18 to 65 years.
- Commercial itinerary to Bogota with at least 4 hours of total airborne time.
- Prebooked premium business/first-class or economy-class cabin documented before randomization.
- No medical requirement for or contraindication to graduated compression stockings.
- Ability to complete standardized ultrasound before flight and through 48 hours after arrival before surgery.
- Written informed consent.
Exclusion Criteria:
- Current deep venous thrombosis, therapeutic anticoagulation, or severe peripheral arterial disease.
- Pregnancy.
- Lower-extremity skin, neurologic, or anatomic condition preventing safe stocking use or ultrasound.
- Cabin upgrade or downgrade after randomization that changes the prespecified stratum.
- Surgery or major intravenous fluid therapy before the 48-hour examination.
- Inability to follow the randomized stocking assignment.
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Forebygging
- Tildeling: Ikke-randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Enkelt
Antall våpen
Våpen og intervensjoner
Deltakergruppe / ArmDeltakergruppe / Arm |
Intervensjon / BehandlingIntervensjon / Behandling |
|---|---|
|
Eksperimentell: Economy Cabin Plus Compression
Participants with a prebooked economy itinerary randomized to knee-high moderate graduated compression stockings.
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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.
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.
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.
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Aktiv komparator: Economy Cabin Without Compression
Participants with a prebooked economy itinerary randomized to no compression stockings.
|
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.
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.
|
|
Eksperimentell: Premium Cabin Plus Compression
Participants with a prebooked business/first-class itinerary randomized to knee-high moderate 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.
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.
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.
|
|
Aktiv komparator: Premium Cabin Without Compression
Participants with a prebooked business/first-class itinerary randomized to no compression stockings.
|
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.
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.
|
Hva måler studien?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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Cabin-Class-by-Compression Interaction in Change in Popliteal Vein Diameter
Tidsramme: Within 24 hours before departure and within 2 hours after arrival at the study site. 3 days
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Interaction term between prebooked cabin stratum and randomized stocking assignment for the change in participant-level mean bilateral popliteal vein diameter from preflight baseline to arrival.
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Within 24 hours before departure and within 2 hours after arrival at the study site. 3 days
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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Randomized Compression Stocking Effect on Arrival-Related Diameter Change
Tidsramme: Within 24 hours before departure and within 2 hours after arrival. 3 days
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Adjusted mean difference between stocking and no-stocking assignments overall and separately within each cabin stratum.
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Within 24 hours before departure and within 2 hours after arrival. 3 days
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Adjusted Cabin-Class Association With Arrival-Related Diameter Change
Tidsramme: Within 24 hours before departure and within 2 hours after arrival. 3 days
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Adjusted mean difference between premium and economy cabin groups overall and separately by stocking assignment.
This contrast is observational because cabin class is not randomized.
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Within 24 hours before departure and within 2 hours after arrival. 3 days
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Four-Group Popliteal Vein Diameter Trajectory
Tidsramme: Within 24 hours before departure; within 2 hours after arrival; 24 +/- 2 hours; and 48 +/- 2 hours after arrival. 3 days
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Estimated mean bilateral diameter and change from baseline in each of the four groups across postarrival time points.
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Within 24 hours before departure; within 2 hours after arrival; 24 +/- 2 hours; and 48 +/- 2 hours after arrival. 3 days
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Samarbeidspartnere og etterforskere
Sponsor
Sponsor
Etterforskere
Etterforskere
- Hovedetterforsker: Hugo Aguilar
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Studiestart
Primær fullføring (Faktiske)
Primær fullføring
Studiet fullført (Antatt)
Studiet fullført
Datoer for studieregistrering
Først innsendt
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Først lagt ut
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Sist oppdatering lagt ut
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Sist bekreftet
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Andre studie-ID-numre
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