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  • Title: Management of T3N1 glottic carcinoma: therapeutic outcomes.
    Author: Spector JG, Sessions DG, Lenox J, Simpson J.
    Journal: Laryngoscope; 2006 Jan; 116(1):106-10. PubMed ID: 16481820.
    Abstract:
    OBJECTIVE: The aim of the current study was to determine the best total laryngectomy (TL) approach to the treatment of T3N1 glottic cancer, to study the impact of early nodal disease on stage III glottic cancers, and to describe the preliminary results in a group of patients recently treated for laryngeal preservation (LP). METHODS: A retrospective study of Tumor Research Project data were performed on previously untreated patients with T3N1 glottic squamous cell carcinoma who were treated with curative intent by TL and neck dissection (ND) with or without adjuvant radiation therapy (TL +/- RT) from April 1, 1955 to October 8, 1999 at Washington University School of Medicine/Barnes Jewish Hospital. A preliminary analysis of a similar group of patients more recently treated for LP (1-1-2000 to 1-1-2005) is reported. RESULTS: Forty-two patients with T3N1 glottic carcinoma were treated with TL and ND (TL/ND-16) and TL with ND and TL (TL/ND/RT-26). The 5 year observed survival (OS) and disease-specific survival (DSS) for TL/ND were similar at 62.5%. The 5 year OS and DSS for TL/ND/RT were 53.8% and 58.3%, respectively. There was no survival difference between the two methods. The overall local-regional control rate was 73.9% (11/42 recurrences). The overall recurrence rate was 38%, with 7.1% recurrence at both the primary site and neck. Recurrence was not related to treatment method. The overall salvage rate (5 year DSS after retreatment) was 20% with 50% salvage for patients with neck recurrence. No patients with local recurrence were survivors. The incidence of second primary cancers was 6.8%. More recently, 26 similar patients were treated with LP techniques. Preliminary results showed a 3 year OS of 63.5% and DSS of 76.8%. Local-regional control was 85.4%. LP was 88.5%. CONCLUSIONS: The two TL modalities had statistically similar results in terms of survival, recurrence, and complications. Decreased DSS was seen in older patients (>65 years) and in patients with involved resection margins, recurrent disease, and distant metastasis. Patients with T3N1 glottic cancer had an 8% decrease in DSS compared to patients with T3N0 disease. Previously patients with T3N1 disease have been treated with TL resulting in loss of natural voice in all patients. Preliminary results on 26 patients with T3N1 disease, treated between 2000 and 2005 with voice preservation intent, indicate that the OS, DSS, and local-regional control rates were similar to the TL group, whereas 88.5% of patients maintained natural voice and natural breathing. Use of LP techniques should be the initial therapeutic approach for patients with T3N1 glottic cancer.
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