O Laccourreye1, D Veivers, S Hans, M Ménard, D Brasnu, H Laccourreye. 1. Department of Otorhinolaryngology-Head and Neck Surgery, Hôpital Européen Georges Pompidou, Assistance Publique des Hôpitaux de Paris, University of Paris V, Paris, France. ollivier.laccourreye@hop.egp.ap-hop-paris.fr
Abstract
BACKGROUND: The current studies documented the results achieved with chemotherapy alone with curative intent in a series of 67 patients with invasive squamous cell carcinoma of the pharyngolarynx classified as T1-T4N0M0 complete clinical responders after a platin-based induction chemotherapy regimen. METHODS: Group I consisted of 36 patients with tumors originating from the glottis. Group II consisted of 31 patients with tumors originating from sites within the pharyngolarynx other than the glottis. A minimum of 3 years of follow-up was achieved. Statistical analyses of survival, local control, lymph node control, distant metastasis, and second primary tumor rates were based on the Kaplan-Meier life-table method. Laryngeal preservation rates and local control rates are presented. RESULTS: The 5-year actuarial survival estimate was 85.1% in Group I patients and 54.8% in Group II patients. Survival was statistically more likely to be reduced in Group II patients compared with Group I patients (P = 0.01). The 5-year actuarial local control estimate was 65.7% in Group I patients and 37.5% in Group II patients. Local failure was statistically more likely to occur in Group II patients compared with Group I patients (P = 0.02). Local control rates after salvage treatment were 100% in Group I patients and 83% in Group II patients. Laryngeal preservation rates after salvage treatment were 100% in Group I patients and 64% in Group II patients. The 5-year actuarial lymph node control estimate was 90% in Group I patients and 73.7% in Group II patients. Lymph node failure was statistically more likely to occur in Group II patients compared with Group I patients (P = 0.04). The 5-year actuarial estimate for patients without distant metastasis was 100% in Group I patients and 90% in Group II patients. Distant metastasis was statistically more likely to occur in Group II patients compared with Group I patients (P = 0.03). The 10-year actuarial estimate for patients without metachronous second primary tumors was 56.4% in Group I and 46.1% in Group II. CONCLUSIONS: The current report 1) contradicts the old dogma of nonchemocurability for invasive squamous cell carcinoma of the upper aerodigestive tract and 2) suggests that the use of a platin-based chemotherapy-alone regimen with curative intent in patients with invasive squamous cell carcinoma of the pharyngolarynx who are classified as T1-T4N0M0 complete clinical responders after receiving an induction chemotherapy regimen is best indicated when the tumor originates from the glottis. Copyright 2001 American Cancer Society.
BACKGROUND: The current studies documented the results achieved with chemotherapy alone with curative intent in a series of 67 patients with invasive squamous cell carcinoma of the pharyngolarynx classified as T1-T4N0M0 complete clinical responders after a platin-based induction chemotherapy regimen. METHODS: Group I consisted of 36 patients with tumors originating from the glottis. Group II consisted of 31 patients with tumors originating from sites within the pharyngolarynx other than the glottis. A minimum of 3 years of follow-up was achieved. Statistical analyses of survival, local control, lymph node control, distant metastasis, and second primary tumor rates were based on the Kaplan-Meier life-table method. Laryngeal preservation rates and local control rates are presented. RESULTS: The 5-year actuarial survival estimate was 85.1% in Group I patients and 54.8% in Group II patients. Survival was statistically more likely to be reduced in Group II patients compared with Group I patients (P = 0.01). The 5-year actuarial local control estimate was 65.7% in Group I patients and 37.5% in Group II patients. Local failure was statistically more likely to occur in Group II patients compared with Group I patients (P = 0.02). Local control rates after salvage treatment were 100% in Group I patients and 83% in Group II patients. Laryngeal preservation rates after salvage treatment were 100% in Group I patients and 64% in Group II patients. The 5-year actuarial lymph node control estimate was 90% in Group I patients and 73.7% in Group II patients. Lymph node failure was statistically more likely to occur in Group II patients compared with Group I patients (P = 0.04). The 5-year actuarial estimate for patients without distant metastasis was 100% in Group I patients and 90% in Group II patients. Distant metastasis was statistically more likely to occur in Group II patients compared with Group I patients (P = 0.03). The 10-year actuarial estimate for patients without metachronous second primary tumors was 56.4% in Group I and 46.1% in Group II. CONCLUSIONS: The current report 1) contradicts the old dogma of nonchemocurability for invasive squamous cell carcinoma of the upper aerodigestive tract and 2) suggests that the use of a platin-based chemotherapy-alone regimen with curative intent in patients with invasive squamous cell carcinoma of the pharyngolarynx who are classified as T1-T4N0M0 complete clinical responders after receiving an induction chemotherapy regimen is best indicated when the tumor originates from the glottis. Copyright 2001 American Cancer Society.
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