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Caudal-to-cranial Approach in Laparoscopic Right Hemicolectomy with Complete Mesocolon Excision and D3 Lymph Node Dissection

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Increased lymph node harvest from colorectal cancer resections using GEWF solution: a randomised study.

L H Iversen¹, S Laurberg, R Hagemann-Madsen

¹Department of Surgery P, Aarhus University Hospital THG, Aarhus, Denmark. lene.h.iversen@dadlnet.dk

Journal of Clinical Pathology

|August 30, 2008

Summary

This summary is machine-generated.

The GEWF solution significantly improves lymph node yield from colorectal cancer (CRC) specimens. This enhanced lymph node harvest is crucial for accurate staging and treatment planning in CRC patients.

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Area of Science:

Oncology
Surgical Pathology

Background:

Accurate lymph node harvest from colorectal cancer (CRC) specimens is critical for patient prognosis, regardless of N stage.
The quality of lymph node retrieval impacts staging and treatment decisions in CRC management.

Purpose of the Study:

To evaluate the efficacy of GEWF solution (glacial acetic acid, ethanol, distilled water, formaldehyde) in enhancing lymph node retrieval from CRC specimens.
To determine if GEWF solution improves the number of lymph nodes harvested compared to conventional preparation methods.

Main Methods:

A randomized study involving 120 fresh colorectal specimens (60 colonic, 60 rectal) from primary CRC patients.
Specimens were prepared using either conventional methods or the GEWF solution and examined systematically.

Main Results:

GEWF solution significantly increased mean lymph node harvest from 9-10 to 16-17 per specimen (p<0.001).
Adequacy of nodal harvest (≥12 nodes) improved from <50% to ~75% with GEWF solution.
No significant difference in the proportion of node-negative specimens was observed between groups.

Conclusions:

GEWF solution demonstrably enhances lymph node yield in colorectal cancer resections.
This improved harvest aids in achieving adequate nodal staging for CRC patients.