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Transoral Robotic Total Thyroidectomy and Bilateral Central Regional Lymph Node Dissection for Papillary Thyroid Carcinoma
Published on: September 15, 2023
Elective neck dissection in papillary thyroid carcinoma patients.
1Department of Thyroid Surgery, Provincial Hospital Affiliated to Shandong University, Jinan, 250021, P.R. China.
Acta Chirurgica Belgica
|March 27, 2012
Summary
Methylene blue dye is a safe and effective method for identifying cervical lymph node metastases in papillary thyroid carcinoma patients, improving the accuracy of elective neck dissection. This technique enhances detection rates and aids in surgical planning.
Area of Science:
- Oncology
- Surgical Pathology
- Diagnostic Imaging
Background:
- Papillary thyroid carcinoma (PTC) frequently metastasizes to cervical lymph nodes, necessitating accurate staging for appropriate treatment.
- Elective neck dissection (END) is a common surgical procedure for PTC, but its effectiveness relies on precise identification of metastatic lymph nodes.
- Assessing the diagnostic performance of methylene blue dye for detecting cervical lymph node metastases in PTC patients is crucial for optimizing surgical strategies.
Purpose of the Study:
- To evaluate the diagnostic performance of methylene blue dye in identifying cervical lymph node metastases in papillary thyroid carcinoma.
- To determine the technique's sensitivity and detection rate for guiding elective neck dissection.
- To establish the safety and feasibility of using methylene blue dye in this context.
Main Methods:
- Methylene blue dye (1.0%) was injected into the parenchyma surrounding the primary tumor under ultrasound guidance.
- Intra-operative identification and excision of blue-stained lymph nodes and lymphatic channels.
- Histologic analysis (frozen and permanent sections) of stained and unstained lymph nodes for metastatic assessment.
Main Results:
- A total of 1373 lymph nodes were analyzed from 132 patients.
- The pathological diagnosis concordance rate between dye staining and metastasis detection was 87.8%.
- Nodal metastases were most frequently observed in levels VI, IV, and III, followed by levels II, I, and V.
Conclusions:
- Methylene blue dye injection is a technically feasible and safe method for assessing cervical lymph node status in PTC.
- The dye's findings correlate well with histological analysis, supporting its use in surgical planning.
- Performing elective neck dissection guided by methylene blue dye patterns and frozen-section analysis is a reliable and safe surgical approach for PTC.
