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The aim of the study is to evaluate whether lymph nodes draining the region of the carcinoma are located only inside the lines of standard resection or in some percentages are located outside as well. The visualized nodes draining the region of the carcinoma will be correlated to location, fluorescent yes/no and nodal positive/negative.
The draining lymph nodes will be visualized using the fluorescent dye indocyanine green.
The aim of the study is to evaluate whether lymph nodes draining the region of the carcinoma are located only inside the lines of standard resection or in some percentages are located outside as well. The visualized nodes draining the region of the carcinoma will be correlated to location, fluorescent yes/no and nodal positive/negative.
The draining lymph nodes will be visualized using the fluorescent dye indocyanine green.
Participants with a diagnosed (andeno)carcinoma of the ascending, transverse, descending and sigmoid colon will be included. Preoperatively the participants will receive an indocyanine green(ICG) injection at four points around the tumour endoscopically. The ICG marking will take place one to five days prior to surgery. In the draining lymph nodes of the specific region the ICG will accumulate and thus visible via fluorescence-camera during the surgery.
Intraoperatively, the precise locations of all fluorescent nodes will be documented photographically. A standard resection and lymph node dissection will be conducted, potential fluorescent nodes outside the standard resection lines will additionally be resected. The fresh specimen will then be measured, the fluorescent nodes marked and after the pathologic examination the nodes will be correlated to location, fluorescent yes/no and nodal positive/negative.
The aim ist not the visualization of the Sentinel node or the directly draining lymphatic vessel but all the nodes draining the peritumorous region at the point of surgery.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| ICG-marked Colon Carcinoma | Experimental | The participants will receive an endoscopic marking via ICG preoperatively |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| ICG-marking endoscopically | Procedure | Preoperatively the participants will receive an endoscopic marking at four points around the tumour with the fluorescent dye indocyanine green. |
| Measure | Description | Time Frame |
|---|---|---|
| Intraoperative ICG-positive lymph nodes in vivo after endoscopic marking of the tumour | Counting ICG-positive sites intraoperatively | intraoperative assessment |
| Video-analysis of ICG-positive lymph nodes in vivo after endoscopic marking of the tumour | Counting ICG-positive sites video-analysis | video-analysis within one week after surgery |
| Number of ICG-positive lymph nodes after endoscopic marking of the tumour | Picking ICG-positive lymph nodes ex vivo in unfixed specimen, sending ICG positive nodes separately to pathological examination | within one week after surgery |
| Correlation of nodal-positive lymph nodes inside/outside the standard resection area | ICG-positive sites outside standard resection area will be "cherry picked", sent to pathological examination separatively. | within one week after surgery |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Katharina L Lucas, MD | Contact | +4915779600815 | katharina.lucas@uni-wh.de | |
| Julia-Kristin Grass, Dr. | Contact | +4915222815011 | j.grass@uke.de |
| Name | Affiliation | Role |
|---|---|---|
| Daniel Perez, Prof. Dr. | Dept of General Visceral and Thoracic Surgery | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Hamburg Medical Institutions | Recruiting | Hamburg | Germany |
Available on reasonable request
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| ID | Term |
|---|---|
| D003110 | Colonic Neoplasms |
| D008207 | Lymphatic Metastasis |
| ID | Term |
|---|---|
| D015179 | Colorectal Neoplasms |
| D007414 | Intestinal Neoplasms |
| D005770 | Gastrointestinal Neoplasms |
| D004067 | Digestive System Neoplasms |
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Intervention group. Participants will receive a state of the art surgical procedure with additional lymph node mapping
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| D009371 | Neoplasms by Site |
| D009369 | Neoplasms |
| D004066 | Digestive System Diseases |
| D005767 | Gastrointestinal Diseases |
| D003108 | Colonic Diseases |
| D007410 | Intestinal Diseases |
| D009362 | Neoplasm Metastasis |
| D009385 | Neoplastic Processes |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |