Набор скоро начнётся NCT07635420

Comparing Intraoperative Indocyanine Green Fluorescence Imaging With Standard Clinical Assessment for Flap Perfusion in Head and Neck Reconstruction (VISION Trial)

Фаза IV С лечением Head and Neck Cancer (H&N) Free Tissue Flaps Free Flap Free Flap Evaluation

Ориентир для пациента и семьи

Простыми словами

Автоматическая сводка по структурированным данным реестра. Она помогает сориентироваться, но не заменяет официальный протокол или оценку врача.

Что изучают: В протоколе указаны: Indocyanine Green, Standard clinical perfusion assessment.
Кому может быть актуально: Состояния в реестре: Head and Neck Cancer (H&N), Free Tissue Flaps, Free Flap, Free Flap Evaluation. Базовые параметры: от 18 лет · Все.
Что важно проверить: Возраст, диагноз и пол — только базовые ориентиры. Предыдущее лечение, анализы и другие обязательные условия указаны ниже в критериях участия.
Где проводится: Швеция
Следующий шаг: Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →

Не всё понятно в терминах? Прочитайте наш гид для пациентов →

Официальное название

Comparing Intraoperative Indocyanine Green Fluorescence Imaging With Standard Clinical Assessment for Flap Perfusion in Head and Neck Reconstruction: A Randomised Controlled Trial (VISION Trial)

Обзор

This is a prospective multicentre randomised controlled trial evaluating whether intraoperative indocyanine green (ICG) fluorescence angiography improves outcomes in head and neck free flap reconstruction compared with standard clinical assessment of flap perfusion. Adult patients undergoing microvascular free flap reconstruction for oncologic, trauma, or benign head and neck defects will be randomised to either intraoperative ICG angiography or conventional clinical perfusion assessment. The primary outcome is partial flap loss requiring intervention within 30 days after surgery. Secondary outcomes include total flap loss, flap-related re-exploration, flap salvage, and postoperative complications.

Подробное описание

The VISION Trial is a prospective, multicentre, open-label, parallel-group randomised controlled trial comparing intraoperative indocyanine green (ICG) fluorescence angiography with standard clinical assessment for flap perfusion in head and neck free flap reconstruction.

Free flap reconstruction is an essential component of complex head and neck reconstruction, but flap survival depends on adequate microvascular perfusion. Conventional intraoperative assessment methods, including inspection of flap colour, capillary refill, tissue turgor, bleeding upon needle prick, and Doppler examination, provide indirect assessment of perfusion and may be unreliable in some situations.

ICG fluorescence angiography enables real-time visualisation of arterial inflow and venous outflow using near-infrared fluorescence imaging. Retrospective studies have suggested that ICG angiography may reduce rates of partial flap loss and flap-related re-exploration, but high-quality prospective randomised evidence remains limited.

A total of 244 adult patients undergoing microvascular free flap reconstruction for oncologic, trauma, or benign head and neck defects at participating Swedish centres will be included. Participants will be randomised to either standard clinical assessment alone or standard clinical assessment supplemented with intraoperative ICG fluorescence angiography.

In the intervention group, ICG angiography will be performed intraoperatively using near-infrared fluorescence imaging systems after administration of intravenous indocyanine green (Verdye®). Quantitative perfusion analysis will also be performed using SPY-Q software.

The primary endpoint is partial flap loss requiring intervention within 30 days after surgery. Secondary endpoints include total flap loss, flap-related re-exploration under general anaesthesia, flap salvage, postoperative complications graded according to Clavien-Dindo classification, and the association between intraoperative SPY-Q perfusion values and flap outcomes.

No additional trial-specific postoperative visits are required. Outcomes will be assessed through structured chart review at 30 and 90 days postoperatively.

Вмешательства

Препарат Indocyanine Green
Indocyanine green (ICG) is administered intravenously during surgery for intraoperative fluorescence angiography assessment of free flap perfusion in head and neck reconstruction. A 25 mg vial of ICG (Verdye®) is reconstituted with sterile water, and approximately 7.5 mg is administered intravenously followed by saline flush. Perfusion is assessed using near-infrared fluorescence imaging systems and SPY-Q quantitative perfusion analysis.
Процедура Standard clinical perfusion assessment
Standard intraoperative clinical assessment of free flap perfusion including evaluation of flap colour, capillary refill, tissue turgor, bleeding upon needle prick, and Doppler examination as clinically indicated during head and neck free flap reconstruction.

Первичные конечные точки

Partial flap loss requiring intervention [Срок оценки: From index surgery to 30 days postoperatively]

Вторичные конечные точки (5)

Total flap loss [Срок оценки: From index surgery to 30 days postoperatively]
Flap-related re-exploration under general anaesthesia [Срок оценки: From index surgery to 30 days postoperatively]
Flap salvage [Срок оценки: From index surgery to 30 days postoperatively]
Postoperative complications [Срок оценки: From index surgery to 90 days postoperatively]
Correlation between intraoperative SPY-Q Relative Perfusion Value (%) and partial flap loss [Срок оценки: From index surgery to 30 days postoperatively]

Критерии участия

Критерии включения

Age ≥18 years at the time of inclusion
Scheduled to undergo microvascular free flap reconstruction as part of oncologic, trauma, or benign surgery in the head and neck area
Ability to understand study information and provide written informed consent