The Value of Lymph Node Dissection of Indocyanine Green-guided Near-infrared Fluorescent Imaging in Esophagectomy

Study Overview
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Brief Summary
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Indocyanine green (ICG) has been recently introduced in clinical practice as a fuorescent tracer. Lymphadenectomy is particularly challenging in esophageal cancer surgery, owing to the complex anatomical drainage.Therefore, the purpose of this study was to explore whether the NIR-ICG imaging system could accurately assess the lymph node markers during radical resection of esophageal cancer.

Detailed Description
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This study will be accepted in esophageal cancer patients with Radical Esophag-ectomy as the research object.We will divide them into two groups: experimental group for injection of indocyanine green group and control group for injectable in-docyanine green group.We will compare with the accuracy,false positive rate and false negative rate,sensitivity, specificity and related indicators of intraoperative lymph node cleaning,in order to explore the common position of esophageal cancer sentinel lymph node,guidance of esophageal cancer lymph node cleaning thoroughly.

Official Title
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The Value of Lymph Node Dissection of Indocyanine Green-guided Near-infrared Fluorescent Imaging in Video-assisted Thoracoscope Radical Esophagectomy

Conditions
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Esophageal Cancer, Indocyanine Green

Intervention / Treatment
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* Drug: Indocyanine green solution


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Age and gender: 18-75 years old, male and female unlimited; Preoperative biopsy was pathologically diagnosed as esophageal squamous cell carcinoma; Preoperative combination with neoadjuvant chemoradiotherapy; Surgical resection of esophageal carcinoma under endoscopic selection and intraoperative anastomosis; Heart, lung, liver and kidney functions can tolerate operation; Patients and their family members can understand and are willing to participate in this clinical study and sign the informed consent. Exclusion Criteria: Allergic to ICG or iodine; Patients with a history of chest surgery or thoracic lymph node dissection; Patients needing emergency surgery; Patients whose tumors involve neighboring organs and need to be removed by combining organs; Patients with tumor recurrence or distant metastasis; Patients who had participated in or were participating in other clinical trials within the previous 4 weeks were included; A history of serious mental illness; Pregnant or lactating women; Patients with other conditions considered by the researcher should not participate in the study.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 75 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: NIR-ICG<br>After positioning,Indocyanine green（ICG） dye (Yichuang Pharmaceutical, Liaoning, China) stored at a dose of 25 mg in a small bottle was diluted with 5 ml sterile water. Then, 2 ml of this solution was added to 8 ml sterile water in a dis-posable dressing bowl, resulting in a final concentration of 1.25 mg/ml. | Drug: Indocyanine green solution<br>* ICG solution was endoscopically injected into the esophageal submucosa at the four quadrants around the tumor.<br>* Other names: Indocyanine Green for Injection;|
| No Intervention: Control<br>This group of patients received only conventional radical resection of esophageal cancer without Indocyanine green injection. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Accuracy rate of lymph node dissection | Accuracy rate of lymph node dissection of each arm（according to postoperative pathology） | 1 week after operation | 
| False positive rate of lymph node dissection | False positive rate of lymph node dissectionof each arm（according to postoperative pathology） | 1 week after operation | 
| False negative rate of lymph node dissection | False negative rate of lymph node dissection of each arm（according to postoperative pathology） | 1 week after operation | 
| Sensitivity and specificity of lymph node dissection | Sensitivity and specificity of lymph node dissection of each arm（according to postoperative pathology） | 1 week after operation | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The mapping of sentinel lymph nodes in esophageal cancer | The mapping of sentinel lymph nodes in esophageal cancer | 1 week after operation | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Esophageal Cancer, Indocyanine Green, the lymph node markers