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  • Title: A strategy for determining which thoracic esophageal cancer patients should undergo cervical lymph node dissection.
    Author: Nagatani S, Shimada Y, Kondo M, Kaganoi J, Maeda M, Watanabe G, Imamura M.
    Journal: Ann Thorac Surg; 2005 Nov; 80(5):1881-6. PubMed ID: 16242473.
    Abstract:
    BACKGROUND: There is controversy about performing cervical lymph node dissections in all middle and lower thoracic esophageal squamous cell carcinoma patients. The purpose of this study was to evaluate whether intraoperative examination of thoracic paratracheal lymph node by real-time reverse transcription-polymerase chain reaction was worthwhile for selecting patients for cervical lymph node dissection. METHODS: Under informed consent, 30 middle and lower thoracic esophageal squamous cell carcinoma patients were examined for thoracic paratracheal lymph node metastasis intraoperatively by hematoxylin-eosin staining and real-time reverse transcription-polymerase chain reaction for messenger RNA encoding squamous cell carcinoma antigen. When thoracic paratracheal lymph node metastasis was found, cervical lymph node dissection was performed. If the patients had no thoracic paratracheal lymph node metastasis, a randomized study for selection of cervical lymph node dissection was performed. RESULTS: Eleven of 30 patients with middle or lower third thoracic esophageal squamous cell carcinoma had thoracic paratracheal lymph node metastasis. Five of these 11 patients had cervical lymph node metastasis. Nineteen patients who had no metastasis in the thoracic paratracheal lymph nodes were enrolled in a randomized study. Eight of the 19 patients received cervical lymph node dissection and they were found not to have cervical lymph node metastasis. The other 11 patients did not receive cervical lymph node dissection, and there was no cervical lymph node recurrence. CONCLUSIONS: The intraoperative diagnosis of metastasis in the thoracic paratracheal lymph node may be used as an indicator for cervical lymph node dissection in middle and lower thoracic esophageal cancer patients.
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