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Assessment of the effects of pressors on graft blood flow after free tissue transfer surgery - Free 4 Flow

Assessment of the effects of pressors on graft blood flow after free tissue transfer surgery - Free 4 Flow

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2008-000073-37-GB
Enrollment
Unknown
Registered
2008-10-16
Start date
2008-09-24
Completion date
Unknown
Last updated
2012-03-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Patients in need of free flap facial reconstructive surgery

Interventions

Trade Name: Dopacard Product Name: Dopexamine Pharmaceutical Form: Solution for infusion INN or Proposed INN: DOPEXAMINE HYDROCHLORIDE CAS Number: 86484915 Concentration unit: % (W/V) percent weight/v

Sponsors

Oxford Radcliffe Hospitals NHS Trust
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients eligible for inclusion are those undergoing oral reconstruction using free flaps at the John Radcliffe Hospital in Oxford and expected to be admitted to the Adult Intensive Care Unit post-operatively. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: Patients will be excluded from the trial if they: • are having repeat surgery, • refuse consent, • are contraindicated for pressor infusions, • are not planned to be ventilated overnight - are prisoners - are unable to give consent.

Design outcomes

Primary

MeasureTime frame
Main Objective: • Absolute change in transfer function (flap vascular resistance) after pressor infusion.;Secondary Objective: • Relative change in transfer function after pressor infusion compared with “normal” tissue. • Change in flap flow after pressor infusion. • Differences in frequency spectrum of skin blood flow between flaps and “normal” tissue before and after pressor infusion. ;Primary end point(s): To identify the optimal pharmacological agent for blood pressure maintenance after free tissue transfer surgery by investigating in the allocated random order, which of 4 commonly used and available licensed pressors achieves the best free flap blood flow as well as increasing blood pressure.

Countries

United Kingdom

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026