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Fluorescence Guided Targeted Pelvic Lymph Node Dissection for Intermediate and High Risk Prostate Cancer
Stephan Hruby1, Christine Englberger1, Lukas Lusuardi1
1Departments of Urology and Pathology (MH), Paracelsus Medical University, Salzburg, Austria.
The Journal of Urology
|April 22, 2015
Summary
Fluorescence-guided surgery accurately identifies prostate cancer lymph node metastases, improving detection rates and reducing the number of removed nodes. This technique enhances diagnostic accuracy compared to traditional methods.
Area of Science:
- Urology
- Surgical Oncology
- Medical Imaging
Background:
- Prostate cancer staging relies heavily on accurate lymph node metastasis detection.
- Super-extended pelvic lymph node dissection (SEPLND) is a standard but extensive procedure.
- Minimally invasive techniques are sought to improve diagnostic yield and reduce morbidity.
Purpose of the Study:
- To evaluate the efficacy of fluorescence-guided pelvic lymph node dissection (FLND) using indocyanine green (ICG) in identifying prostate cancer lymph node metastases.
- To compare the detection rate of FLND with super-extended pelvic lymph node dissection (SEPLND) in intermediate and high-risk prostate cancer patients.
Main Methods:
- 38 intermediate/high-risk prostate cancer patients underwent FLND during laparoscopic radical prostatectomy.
- SEPLND served as the control for comparison.
- Exclusion criteria included neoadjuvant hormonal therapy and prior prostate surgery.
Main Results:
- FLND identified lymphatic drainage in most patients, with 75% of removed nodes being fluorescence-stained.
- Lymph node metastases were detected in 39.5% of patients.
- Metastases outside the standard dissection template were found in 33.3% of positive cases, highlighting FLND's superior sensitivity and negative predictive value.
Conclusions:
- Fluorescence-guided pelvic lymph node dissection reliably visualizes prostate lymphatic drainage.
- FLND increases diagnostic accuracy for lymph node metastases while decreasing the number of removed nodes.
- This technique offers a more precise approach to staging prostate cancer.
