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- Ensayo clínico NCT07745738
ICG Fluorescence Versus CO₂ Inflation-Deflation for Intersegmental Plane Identification During Thoracoscopic Segmentectomy
Comparison of Indocyanine Green Fluorescence and Carbon Dioxide Inflation-Deflation for Intersegmental Plane Identification During Thoracoscopic Segmentectomy: A Prospective Paired Study
Intersegmental plane identification is a critical step in thoracoscopic anatomical segmentectomy because it helps ensure adequate surgical margins while preserving healthy lung tissue. Indocyanine green (ICG) fluorescence imaging and carbon dioxide (CO₂) inflation-deflation are two techniques used to identify the intersegmental plane, but their agreement and clinical applicability have not been adequately evaluated.
This prospective paired study aims to compare the intersegmental planes identified by ICG fluorescence imaging and the CO₂ inflation-deflation method during thoracoscopic anatomical segmentectomy. In each participant, both techniques will be performed during the same operation, and the identified intersegmental planes will be compared. The findings of this study may provide evidence regarding the agreement and clinical applicability of the two methods for intersegmental plane identification.
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Tipo de estudio
Inscripción (Estimado)
Fase
- No aplica
Contactos y Ubicaciones
Estudio Contacto
- Nombre: Zhang Ni Zhang Ni
- Número de teléfono: +8613006315393
- Correo electrónico: zhangnidoc@163.com
Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
- Adulto Mayor
Acepta Voluntarios Saludables
Descripción
Inclusion Criteria:
- Adults aged 18 to 80 years.
- Scheduled to undergo elective thoracoscopic anatomical segmentectomy.
- Preoperative thin-section chest CT with three-dimensional reconstruction available for surgical planning.
- Lesion considered suitable for anatomical segmentectomy by the thoracic surgery team.
- Able and willing to provide written informed consent.
Exclusion Criteria:
- Known allergy or contraindication to indocyanine green (ICG).
- Pregnant or breastfeeding women.
- Severe hepatic dysfunction or other conditions contraindicating the use of ICG.
- Severe emphysema, bullous lung disease, diffuse pulmonary fibrosis, or other severe pulmonary parenchymal disease expected to interfere with intersegmental plane identification.
- Conversion to thoracotomy before completion of both intersegmental plane identification methods.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Otro
- Asignación: N / A
- Modelo Intervencionista: Asignación de un solo grupo
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
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Experimental: Single Group
Participants undergoing thoracoscopic anatomical segmentectomy will undergo intersegmental plane identification using indocyanine green (ICG) fluorescence imaging and carbon dioxide (CO₂) inflation-deflation during the same surgical procedure.
The intersegmental planes identified by the two techniques will be compared to evaluate their clinical concordance and intraoperative performance.
The final parenchymal transection line will be determined by the operating surgeon according to intraoperative clinical judgment.
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Intravenous indocyanine green (ICG) fluorescence imaging is used intraoperatively to identify the intersegmental plane during thoracoscopic anatomical segmentectomy.
Carbon dioxide (CO₂) inflation-deflation is used intraoperatively to identify the intersegmental plane during thoracoscopic anatomical segmentectomy.
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Clinical concordance of the intersegmental planes identified by indocyanine green fluorescence imaging and carbon dioxide inflation-deflation
Periodo de tiempo: Intraoperative, after both intersegmental boundaries have been identified and marked and immediately before pulmonary parenchymal division during thoracoscopic segmentectomy.
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Clinical concordance between the intersegmental planes identified by the two techniques, determined by blinded assessment of de-identified intraoperative videos.
Concordance is defined as Grade A or Grade B agreement; discordance is defined as Grade C.
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Intraoperative, after both intersegmental boundaries have been identified and marked and immediately before pulmonary parenchymal division during thoracoscopic segmentectomy.
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Difference in tumor-to-plane distance (Δ margin)
Periodo de tiempo: Immediately after removal of the resected specimen during the surgical procedure and before formalin fixation
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Difference in the shortest distance from the tumor to the intersegmental plane identified by carbon dioxide (CO₂) inflation-deflation and indocyanine green (ICG) fluorescence imaging, measured on the resected specimen (Δ margin = CO₂ - ICG).
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Immediately after removal of the resected specimen during the surgical procedure and before formalin fixation
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Time to intersegmental plane visualization
Periodo de tiempo: Intraoperative, from completion of ICG injection or complete CO₂ reinflation to first visualization of the respective intersegmental boundary, before pulmonary parenchymal division during thoracoscopic segmentectomy.
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Time from completion of the identification procedure to visualization of a clearly identifiable intersegmental plane for each technique.
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Intraoperative, from completion of ICG injection or complete CO₂ reinflation to first visualization of the respective intersegmental boundary, before pulmonary parenchymal division during thoracoscopic segmentectomy.
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Technical success rate
Periodo de tiempo: Intraoperative, at completion of each intersegmental plane identification technique and before pulmonary parenchymal division during thoracoscopic segmentectomy.
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Proportion of procedures in which a clearly identifiable intersegmental plane is successfully visualized using each technique.
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Intraoperative, at completion of each intersegmental plane identification technique and before pulmonary parenchymal division during thoracoscopic segmentectomy.
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Perioperative safety
Periodo de tiempo: From surgery until hospital discharge
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Perioperative adverse events related to indocyanine green (ICG) fluorescence imaging or carbon dioxide (CO₂) inflation-deflation, including allergic reactions, physiological changes, and intraoperative complications.
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From surgery until hospital discharge
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Colaboradores e Investigadores
Patrocinador
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Publicado por primera vez (Actual)
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Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- TJ-IRB202606104
Plan de datos de participantes individuales (IPD)
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Información sobre medicamentos y dispositivos, documentos del estudio
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