Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 2 de 2
Filtrar
Mais filtros











Base de dados
Intervalo de ano de publicação
1.
Int J Radiat Oncol Biol Phys ; 79(4): 1081-8, 2011 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-20378262

RESUMO

PURPOSE: To investigate a novel chemoradiation regimen designed to maximize locoregional control (LRC) and minimize toxicity for patients with advanced head-and-neck squamous cell carcinoma (HNSCC). METHODS AND MATERIALS: Patients received hyperfractionated intensity modulated radiation therapy (HIMRT) in 1.25-Gy fractions b.i.d. to 70 Gy to high-risk planning target volume (PTV). Intermediate and low-risk PTVs received 60 Gy and 50 Gy, at 1.07, and 0.89 Gy per fraction, respectively. Concurrent cisplatin 33 mg/m(2)/week was started Week 1. Patients completed the Quality of Life Radiation Therapy Instrument pretreatment (PRE), at end of treatment (EOT), and at 1, 3, 6, 9, and 12 months. Overall survival (OS), progression-free (PFS), LRC, and toxicities were assessed. RESULTS: Of 39 patients, 30 (77%) were alive without disease at median follow-up of 37.5 months. Actuarial 3-year OS, PFS, and LRC were 80%, 82%, and 87%, respectively. No failures occurred in the electively irradiated neck and there were no isolated neck failures. Head and neck QOL was significantly worse in 18 of 35 patients (51%): mean 7.8 PRE vs. 3.9 EOT. By month 1, H&N QOL returned near baseline (mean 6.2, SD = 1.7). The most common acute Grade 3+ toxicities were mucositis (38%), fatigue (28%), dysphagia (28%), and leukopenia (26%). CONCLUSIONS: Hyperfractionated IMRT with low-dose weekly cisplatin resulted in good LRC with acceptable toxicity and QOL. Lack of elective nodal failures despite very low dose per fraction has led to an attempt to further minimize toxicity by reducing elective nodal doses in our subsequent protocol.


Assuntos
Antineoplásicos/administração & dosagem , Carcinoma de Células Escamosas/tratamento farmacológico , Carcinoma de Células Escamosas/radioterapia , Cisplatino/administração & dosagem , Neoplasias de Cabeça e Pescoço/tratamento farmacológico , Neoplasias de Cabeça e Pescoço/radioterapia , Radioterapia de Intensidade Modulada/métodos , Adulto , Idoso , Antineoplásicos/efeitos adversos , Carcinoma de Células Escamosas/mortalidade , Carcinoma de Células Escamosas/patologia , Cisplatino/efeitos adversos , Terapia Combinada/métodos , Intervalo Livre de Doença , Fracionamento da Dose de Radiação , Esquema de Medicação , Feminino , Neoplasias de Cabeça e Pescoço/mortalidade , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Qualidade de Vida , Dosagem Radioterapêutica , Carga Tumoral
2.
J Am Coll Surg ; 198(1): 36-41, 2004 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-14698309

RESUMO

BACKGROUND: Carotid body tumors (CBT) are rare, infrequently malignant vascular neoplasms that are near the carotid bifurcation. Surgical excision is the treatment of choice, but individual surgeons or an institution cannot accumulate sufficient expertise to evaluate their outcomes with confidence. Our purpose was to report outcomes of surgical procedures for CBT from a nationwide dataset. STUDY DESIGN: Data were retrieved from the Nationwide Inpatient Sample from nonfederal hospital discharge abstracts. Data were queried for ICD-9-CM code 39.8, operations on the carotid body and vascular bodies, and code 38.2, carotid endarterectomy. Outcomes analyzed were length of stay, charges, and in-hospital mortality. RESULTS: An estmated 4,601 operations were identified, 3,746 for CBT surgical procedures only, and in 855 a carotid endarterectomy was also performed. Overall morbidity was 3.3%. Mortality with CBT alone was 2.0% but was 8.8% if carotid endarterectomy was also performed. CBT surgical procedures are most commonly performed in western states where higher elevations are found. Women constituted 59% of the population; mortality for women was higher than for men (12.4% versus 7.9%). Mortality in urban teaching hospitals was 2.1% and in nonteaching hospitals 4.9%. CONCLUSIONS: CBT surgical procedures are rare but are performed across a broad age spectrum. Mortality rate is low for patients having CBT alone but rises when CE is added. Women are more commonly affected and fare less well. Addition of CE to CBT surgical procedures and the resulting poor outcomes have not been previously described. Consideration should be given to referral of CBT patients to hospitals where mortality rates are low.


Assuntos
Tumor do Corpo Carotídeo/cirurgia , Endarterectomia das Carótidas , Avaliação de Resultados em Cuidados de Saúde/estatística & dados numéricos , Bases de Dados Factuais/estatística & dados numéricos , Endarterectomia das Carótidas/estatística & dados numéricos , Feminino , Preços Hospitalares/estatística & dados numéricos , Mortalidade Hospitalar , Hospitais Rurais/estatística & dados numéricos , Hospitais de Ensino/estatística & dados numéricos , Hospitais Urbanos/estatística & dados numéricos , Humanos , Tempo de Internação/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Encaminhamento e Consulta , Fatores Sexuais , Estados Unidos/epidemiologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA