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  • Title: Nasopharyngectomy for recurrent nasopharyngeal carcinoma: a review of 31 patients and prognostic factors.
    Author: To EW, Lai EC, Cheng JH, Pang PC, Williams MD, Teo PM.
    Journal: Laryngoscope; 2002 Oct; 112(10):1877-82. PubMed ID: 12368634.
    Abstract:
    OBJECTIVES/HYPOTHESIS: Nasopharyngectomy is a well-established treatment option for recurrent nasopharyngeal carcinoma. Over a period of 4 years and 3 months, in a total of 43 patients, 45 nasopharyngectomies were performed. Thirty-one patients with follow-up ranging from 12 to 58 months were studied. Twenty-two patients (58%) survived; of these, 18 patients (82%) remained disease free. All patients who developed repeat recurrence or died (n = 12) had a high recurrent T-stage tumor, skull base involvement, multiple recurrences, positive surgical margins, or concurrent neck node metastasis. These factors are poor prognostic parameters and might mitigate the indications for aggressive salvage surgery. However, low recurrent T-stage tumor without neck metastasis carries a good prognosis. Modern minimally invasive surgery carries minimal morbidity. STUDY DESIGN A retrospective study was made to determine prognostic indicators in patients treated with salvage surgery for recurrent nasopharyngeal carcinoma. METHODS: Medical records were analyzed for all patients who had received nasopharyngectomy for recurrent nasopharyngeal carcinoma from March 1997 to June 2001. They were followed up from March 1997 to January 2002. Recurrent T stage, nodal metastasis, surgical approach, surgical margins, and pathological nodal status, together with surgical mortality, morbidity, and the delivery of postoperative irradiation, were compared with survival. RESULTS: In all, 43 patients underwent 45 nasopharyngectomies over a period of 4 years and 3 months. Patients with less than 1 year of follow-up were excluded. Four patients with residual disease, who represent a more favorable group, and five patients with planned debulking, nasopharyngectomy, and postoperative stereotactic irradiation were also excluded. The study group comprised 25 men and 6 women (ratio of 4:1) with age ranging from 26 to 69 years (mean age, 49.5 y). In 28 patients (90.3%), the recurrence of nasopharyngeal carcinoma was their first recurrence; in 3 patients (9.7%), the recurrences were second recurrences. Twenty-two patients (71%) survived, achieving a mean survival of 28.5 months. Nine patients died with a mean interval of 7.8 months (range, 1-14 mo). Of the nine patients who died, six (67%) had T3 or T4 tumor, four (44.4%) had concurrent recurrent neck disease, and five (55.5%) had positive surgical margins. Two patients died of perioperative meningitis. Fifteen (83.3%) of the 18 disease-free survivors had a low recurrent T-stage tumor. Mean intervals for development of repeat recurrence or distant metastasis were 16 and 7.9 months, respectively. CONCLUSIONS: High recurrent T stage, skull base involvement, repeated recurrence before surgery, nodal metastasis, and positive surgical margins carry a poor prognosis. This is particularly evident with high T stage and concurrent nodal metastasis. However, patients with low T stage have a survival advantage and benefit most from surgical treatment.
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