Lymph node metastasis and the recurrence of esophageal carcinoma with emphasis on lymphadenectomy in the neck and superior mediastinum

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Abstract
A series of 335 patients with squamous cell carcinoma of the thoracic esophagus undergoing resection and reconstruction via a right thoracotomy and laparotomy with cervical anastomosis between 1973 and 1990, were reviewed. Prior to 1982, the removal of lymph nodes was limited to the nodes in the mediastinum below the tracheal bifurcation and upper abdomen (142 patients). Nodal metastases were found in 89 of these patients at operation. The upper abdominal nodes were the most frequent sites of metastasis (47.2%). None of the 38 patients with positive nodes sampled from the neck and superior mediastinum survived for more than 45 months. In the 50 patients with recurrences, 30 were in the neck and/or superior mediastinum. During or after 1983, the superior mediastinal nodes, particularly the bilateral recurrent nerve nodal chains, were routinely removed (193 patients). Nodal metastasis was proven in 131 of the 193 patients, in whom 87 (45.1%) had metastasis in the neck and superior mediastinum. Eleven of these 87 patients survived for 45 months or more. In the 61 patients with recurrences, 20 were in the neck and/or superior mediastinum. These data suggest that recurrent nerve nodal chains should be removed to improve survival in patients with esophageal carcinoma.