Related Experiment Videos
Dye-guided sentinel node biopsy revisited; validation and observational study from a single institute
Tomohiko Aihara1, Yuichi Takatsuka
1Department of Surgery, Kansai Rosai Hospital, 3-1-69, Inabaso, Amagasaki, Hyogo 660-8511, Japan. aiharat@kanrou.net
Breast Cancer (Tokyo, Japan)
|September 5, 2003
Summary
Indigocarmine dye-guided sentinel node biopsy is a feasible and accurate method for breast cancer staging. This technique successfully identifies sentinel nodes, potentially avoiding further axillary dissection in node-negative patients.
Area of Science:
- Oncology
- Surgical Pathology
Background:
- Sentinel node biopsy is crucial for accurate breast cancer staging.
- Axillary lymph node dissection carries risks and can be avoided in node-negative cases.
Purpose of the Study:
- To assess the feasibility and accuracy of indigocarmine dye-guided sentinel node biopsy (SNB).
- To evaluate the potential of this method to obviate the need for complete axillary lymph node dissection (ALND) in sentinel node-negative patients.
Main Methods:
- A validation study involved 60 patients undergoing indigocarmine-guided SNB followed by ALND.
- An observational study applied indigocarmine-guided SNB to 42 patients to avoid ALND, using intraoperative frozen section analysis.
- Sentinel nodes were identified using 0.5% indigocarmine dye.
Main Results:
- Sentinel nodes were successfully detected in all patients (100% detection rate).
- The validation study showed a 0% false-negative rate in detecting metastases.
- The observational study achieved an 8% false-negative rate with intraoperative frozen section, with similar detection rates and node yields between studies.
Conclusions:
- Indigocarmine dye-guided SNB is a feasible and accurate technique for breast cancer staging.
- The method is suitable for application in observational studies following successful validation.
- This approach offers a reliable alternative to complete axillary dissection in select patients.