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  • Title: Analysis of prognostic factors in patients with oropharyngeal squamous cell carcinoma treated with radiotherapy alone or in combination with systemic chemotherapy.
    Author: Pedruzzi PA, Kowalski LP, Nishimoto IN, Oliveira BV, Tironi F, Ramos GH.
    Journal: Arch Otolaryngol Head Neck Surg; 2008 Nov; 134(11):1196-204. PubMed ID: 19015451.
    Abstract:
    OBJECTIVE: To assess the prognostic significance of several factors in oropharyngeal squamous cell carcinoma treated with radiotherapy alone or in combination with chemotherapy. DESIGN: Retrospective study. SETTING: Erasto Gaertner Hospital, Curitiba, Brazil, and A. C. Camargo Hospital, São Paulo, Brazil. PATIENTS: A total of 361 patients treated for squamous cell carcinoma from January 1, 1990, to December 31, 2001. INTERVENTIONS: Radiotherapy alone or with chemotherapy. MAIN OUTCOME MEASURES: Disease-free survival, overall survival, and treatment response. RESULTS: Most tumors were located at the tonsil (46.8%) or base of the tongue (28.0%) and were at clinical stage III or IV (92.8%). Treatment response was associated with Zubrod scale score, weight loss, number of comorbidities, symptom-severity and Piccirillo stages, hemoglobin level, tumor site, macroscopic appearance of the tumor, and clinical stage. The 5-year overall survival rate was 17.6% and disease-free survival rate was 16.2%. The significant prognostic variables were age; Zubrod scale score; weight loss; comorbidities; Berg, Piccirillo, and symptom-severity staging; involvement of adjacent soft-tissue areas and bone; lymph node mobility; clinical stage; and radiotherapy doses. The multivariate analysis showed Zubrod scale score, symptom-severity staging system, Berg staging system, comorbidities, and radiotherapy dose as independent prognostic factors. CONCLUSION: A combination of clinical factors, such as symptoms, patients' general status, weight loss, and comorbidities, leads to a relevant stage of clinical severity that can be associated with the TNM stage as predictors of survival in oropharyngeal carcinoma.
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