Prospective Repeated-Measures Study of Popliteal Vein Diameter During the First 48 Hours After Commercial Air Travel to Bogota for a Plastic Surgery Intervention
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: hugo Aguilar, MD, Plastic surgeon
- Telefonnummer: +57 301 6918526
- E-mail: havplasticacademy@gmail.com
Studiesteder
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Bogotá, Colombia
- Rekruttering
- Clinica INO
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Kontakt:
- hugo Aguilar, MD, Plastic surgeon
- Telefonnummer: +57 3016918526
- E-mail: havplasticacademy@gmail.com
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- Age 18 to 65 years.
- International commercial flight to Bogota with total airborne time of at least 4 hours.
- Preflight baseline ultrasound obtained within 24 hours before departure using the standardized protocol.
- Arrival ultrasound completed within 2 hours after reaching the study site and before surgery or intravenous fluid therapy.
- Availability for 24-hour and 48-hour examinations.
- Written informed consent.
Exclusion Criteria:
- Known current deep venous thrombosis or pulmonary embolism.
- Therapeutic anticoagulation at enrollment.
- Major lower-extremity venous surgery, active leg infection, or condition preventing popliteal ultrasound.
- Surgery, prolonged immobilization, or substantial intravenous fluid administration before completion of the 48-hour measurement.
- Pregnancy.
- Nondiagnostic baseline examination or inability to reproduce the landmark.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Postflight Repeated-Measures Cohort
All participants undergo standardized preflight and postarrival bilateral popliteal vein ultrasound without assignment to a travel intervention.
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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.
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.
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Change in Mean Bilateral Popliteal Vein Diameter
Tidsramme: Within 24 hours before departure; within 2 hours after arrival at the study site; 24 +/- 2 hours after arrival; and 48 +/- 2 hours after arrival. 1 week
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At each visit, the mean of three anteroposterior diameter measurements in each leg will be calculated, followed by the mean of both legs.
Change from the participant's preflight value will be reported in millimeters and as percent change.
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Within 24 hours before departure; within 2 hours after arrival at the study site; 24 +/- 2 hours after arrival; and 48 +/- 2 hours after arrival. 1 week
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Return of Popliteal Vein Diameter to Baseline
Tidsramme: 24 +/- 2 hours and 48 +/- 2 hours after arrival. 1 week
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Proportion of participants whose mean bilateral diameter is within plus or minus 10% of their preflight value.
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24 +/- 2 hours and 48 +/- 2 hours after arrival. 1 week
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Incidental Venous Thrombosis or Abnormal Compressibility
Tidsramme: From preflight baseline through 48 hours after arrival. 1week
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Number and proportion of participants with a new noncompressible venous segment or other finding requiring diagnostic clinical evaluation.
This research protocol is not designed as a definitive thrombosis screening examination unless the final duplex protocol is expanded.
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From preflight baseline through 48 hours after arrival. 1week
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Hugo Aguilar, MD, plastic surgery
Publikationer og nyttige links
Generelle publikationer
- Hoyos AE, Ramirez B, Benavides J, Perez Pachon ME, Varela A. Aeromedical Considerations for Patient Safety in Aesthetic Medical Tourism. Aerosp Med Hum Perform. 2024 Oct;95(10):765-770. doi: 10.3357/AMHP.6432.2024.
- Ramirez B, Aguilar H, Stanford N, Paez Z, Menendez JP, Pachon J, Osorio E, Varela A. Aesthetic Surgical Tourism: Physiological Changes During Flight That May Affect Patient Safety and Outcomes. Plast Reconstr Surg Glob Open. 2026 May 8;14(5):e7568. doi: 10.1097/GOX.0000000000007568. eCollection 2026 May.
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 015 (Anden identifikator: Nahrain Medical Research Collective (NMRC))
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
IPD-planbeskrivelse
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
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