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Previous issue date: 2009-03-26 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / Introduction: Cancer of the lip is very common in tropical countries, being noticeable the squamous cell carcinoma as the main histological type. Objective: Evaluate the socialdemographic profile, habits, occupation, clinical characteristics of the cancer lesions and the aftermath of treatment of the patients treated on the Luiz Ant?nio Hospital (Natal-RN). Design: Retrospective cohort. Methods: We analyzed 181 medical records of patients from the Luiz Ant?nio Cancer Hospital (Natal-RN) in the period between 1997 and 2004. The statistic evaluation of time between the diagnosis and the relapse or the cure of the patient were done through the Kaplan-Meier method and the comparison of survivor functions were done through the Log-rank test. Later, was estimated the proportional risk model of Cox.
Results: The study population were composed by 69,1% males, 95,2% unlettered, the mean age of 66,5 years, 89,0% of smokers and 64,1% had an occupation involving sun exposure. In regard to the clinical characteristics, most lesions were in the lower lip (77,9%), the size of the
tumor was smaller than 2 cm (51,8%), 92,6% had localized lesions. Were verified 16,3% of local relapse and 13% of regional. Almost the totally of the cases corresponded to squamous cell carcinoma (97,2%). We observed smaller accumulated probability of not occurrence of local relapse when the base and borders were free of lesions (p=0,041), as well as a smaller probability of regional relapse when the sort of treatment was surgery, associated with other therapeutics modalities (p=0,001). The patients with advanced pathologic stage (p=0,016), treated with surgery associated with other therapeutics modalities (p=0,001) and diameter above 4cm (p=0,019) presented a bigger possibility of any kind of relapse. The multivariable analysis pointed the complex treatments (surgery plus other therapeutics modalities) as a
predictor variable for occurrence of new local lesions (p=0,001) and total (p=0,046), besides the age above 70 years to the regional relapse (p=0,050). Conclusion: Cancer of the lip occur in the lower lip, in males, smokers and individuals exposed to Sun light. The relapse was frequent, even being localized and without great consequences to the patient s health. The probability of relapse is related to the size and borders of the lesion and to the histological
exam, as well as to the patient s age and complexity of the treatment chosen / Introdu??o: O c?ncer labial ? bastante freq?ente nos pa?ses tropicais, apresentando, geralmente, progn?stico bastante favor?vel. Objetivo: Avaliar o perfil s?cio-demogr?fico,
h?bitos, ocupa??o, caracter?sticas cl?nicas da les?o cancerosa e as seq?elas p?s tratamento dos pacientes atendidos no Hospital Dr. Luiz Ant?nio (Natal-RN). Desenho: Coorte retrospectivo. Metodologia: 181 prontu?rios do Registro Hospitalar de C?ncer do Hospital Dr. Luiz Ant?nio (Natal-RN) no per?odo de 1997 2004 foram analisados. Foram obtidas as estimativas das probabilidades acumuladas de n?o ocorr?ncia de recidiva local, regional e de qualquer um dos tipos de recidiva dos pacientes registrados no Hospital Dr. Luiz Antonio entre 1997 e 2004. Foram testadas as diferen?as entre as curvas de probabilidades acumuladas atrav?s do teste log-rank. O modelo de riscos proporcionais de Cox foi utilizado para estimativas das raz?es de riscos. Resultados: A popula??o de estudo foi composta por 69,1% de indiv?duos do sexo masculino, 95,2% analfabetos, idade m?dia de 66,5 anos, 89,1% de fumantes e 64,1% apresentavam atividades ocupacionais relacionadas ? exposi??o solar. No que tange ?s caracter?sticas cl?nicas, predominou o l?bio inferior (77,9%), tamanho do tumor menor que 2 cm (51,8%), 92,6% apresentaram les?o localizada. Foram verificados 16,3% de
recidivas locais e 13% regional. Observou-se menor probabilidade acumulada de n?o ocorrer recidiva local quando a base ou as margens da les?o estavam comprometidas (p = 0,041), bem como uma menor probabilidade acumulada de n?o ocorrer recidiva regional quando o tipo de tratamento era cirurgia, associada com outras modalidades terap?uticas (p =0,001). Os pacientes com estadiamento patol?gico avan?ado (p=0,016), aqueles submetidos ? cirurgia associada com outras modalidades terap?uticas (p=0,001) e os pacientes com di?metro histopatol?gico acima de 4 cm (p=0,019) apresentaram uma maior probabilidade acumulada
de ter qualquer tipo de recidiva. A an?lise multivariada apontou os tratamentos complexos (cirurgia aliada a outras modalidades terap?uticas) como vari?vel preditora para ocorr?ncia de recidiva regional (p=0,001) e total (p=0,046), al?m da idade acima de 70 anos para a ocorr?ncia de recidiva regional (p=0,050). Conclus?o: O c?ncer de l?bio acomete mais o l?bio inferior, o sexo masculino, fumantes e indiv?duos submetidos ? exposi??o solar. A recidiva foi alta, apesar de localizada e sem grandes conseq??ncias ? sa?de do paciente. A probabilidade de recidiva est? relacionada ao tamanho e ?s margens da les?o ao exame histopatol?gico, bem como ? idade do paciente e ? complexidade do tratamento realizado
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/17052 |
| Date | 26 March 2009 |
| Creators | Sena, Marina Fernandes de |
| Contributors | CPF:39817270459, http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4767285D3, Maciel, Shirley Suely Soares Veras, CPF:42637910453, http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4773895T8, Oliveira, Angelo Giuseppe Roncalli da Costa, CPF:42313384420, http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4794935P9&dataRevisao=null, Ferreira, Maria ?ngela Fernandes |
| Publisher | Universidade Federal do Rio Grande do Norte, Programa de P?s-Gradua??o em Odontologia, UFRN, BR, Odontologia Preventiva e Social; Periodontia e Pr?tese Dent?ria |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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