부산대학교 도서관

Conclusions. Reduction of distant metastases is essential for better survival. Effective adjuvant chemotherapy should be developed for patients with advanced primary disease (T>2) as well as for patients with advanced nodal status (N>0 or PLN>2). Objectives. The aim of this study was to identify prognostic factors for hypopharyngeal cancer. Patients and methods. In all, 142 previously untreated patients were analyzed retrospectively; 75% of the cases were stage III or IV. Surgical resection was administered as primary treatment to 116 of the patients (82%), while 26 patients (18%) underwent primary radiotherapy. Results. The cause-specific 5-year actuarial survival was 46.3%. Distant metastases were the most frequent (23%) cause of failure, followed by local recurrence (15%), and regional recurrence (13%). Cox's regression analysis showed that the significant factors affecting cause-specific survival were N classification, T classification, number of pathological lymph node metastases (PLN), lymphatic invasion, and positive surgical margin. Similarly, T classification and PLN affected distant metastases. [ABSTRACT FROM AUTHOR]