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Analysis of local recurrence in patients with selected T1-3N0M0 squamous cell carcinoma of the true vocal cord managed with a platinum-based chemotherapy-alone regimen for cure
Authors:Laccourreye Ollivier  Veivers David  Bassot Vincent  Ménard Madeleine  Brasnu Daniel  Laccourreye Henri
Affiliation:Department of Otorhinolaryngology-Head and Neck Surgery, LaEnnec Hospital, Assistance Publique H?pitaux de Paris, University of Paris V, France.
Abstract:
Based on an inception cohort of 35 patients with T1-3N0M0 squamous cell carcinoma of the true vocal cord who had a complete clinical response after a platinum-based induction chemotherapy regimen and a minimum of 3 years of follow-up, the current retrospective study documented the long-term results and consequences of local recurrence following the use of a platinum-based chemotherapy-alone regimen for cure. During the years 1985 to 1996, 231 patients with invasive squamous cell carcinoma of the true vocal cord classified as T1-3N0M0 were managed at our department with a platinum-based induction chemotherapy regimen. A complete clinical response was achieved in 77 patients. Thirty-five of the 77 patients with complete clinical response were managed at our institution with a platinum-based chemotherapy-alone regimen. The statistical analysis of data on survival, local control, nodal control, distant metastasis, and metachronous second primary tumor incidence was based on the Kaplan-Meier product limit method. Univariate analysis was performed for potential statistical relation between local recurrence and various variables. The 3- and 5-year actuarial survival estimates were 91.4% and 88.6%, respectively. Overall, the causes of death were intercurrent disease in 6 patients and metachronous second primary tumor in 4 patients. The 3- and 5-year actuarial local control estimate was 64.8%. No significant statistical relation could be demonstrated between the incidence for local recurrence and the variables under analysis. Salvage treatment in patients with local recurrence yielded a 100% local control rate and laryngeal preservation rate. The 3- and 5-year actuarial lymph node control estimate was 97.1%. The 3- and 5-year actuarial estimate for patients with distant metastasis was 0%. The 5- and 10-year actuarial estimates for patients with metachronous second primary tumor were 9.7% and 28.1%, respectively. Although local recurrence was noted in almost a third of patients with complete clinical response who were managed with a platinum-based chemotherapy-alone regimen, it did not appear to be detrimental, as none of the patients who had local recurrence ultimately died from their disease or lost their larynx.
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