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1.
J Oncol ; 2018: 6301980, 2018.
Article in English | MEDLINE | ID: mdl-30532780

ABSTRACT

INTRODUCTION: Differential expression of genes encoding cytochrome P450 (CYP) and other oxygenases enzymes involved in biotransformation mechanisms of endogenous and exogenous compounds can lead to oral tumor development. OBJECTIVE: We aimed to identify the expression profile of these genes, searching for susceptibility biomarkers in oral squamous cell carcinoma. PATIENTS AND METHODS: Sixteen oral squamous cell carcinoma samples were included in this study (eight tumor and eight adjacent non-tumor tissues). Gene expression quantification was performed using TaqMan Array Human CYP450 and other Oxygenases 96-well plate (Applied Biosystems) by real time qPCR. Protein quantification was performed by ELISA and IHC methods. Bioinformatics tools were used to find metabolic pathways related to the enzymes encoded by differentially expressed genes. Results. CYP27B1, CYP27A1, CYP2E1, CYP2R1, CYP2J2, CYP2U1, CYP4F12, CYP4X1, CYP4B1, PTGIS, ALOX12, and MAOB genes presented differential expression in the oral tumors. After correction by multiple tests, only the PTGIS (Prostaglandin I2 Synthase) gene presented significant differential expression (P < 0.05). The PTGIS gene and protein were reduced in oral tumors. CONCLUSION: PTGIS presents downexpression in oral tumors. PTGIS play an important role in the arachidonic acid metabolism. Arachidonic acid and/or metabolites are derived from this pathway, which can influence the regulation of important physiological mechanisms in tumorigenesis process.

2.
Microsc Res Tech ; 74(5): 430-9, 2011 May.
Article in English | MEDLINE | ID: mdl-20836084

ABSTRACT

Obstructive sleep apnea hypopnea syndrome (SAHS) is a complex disease of the upper respiratory airways. SAHS physiopathology is multifactorial in which airway compliance is a very important component. To evaluate the tissue changes in the palatopharyngeal muscle by morphometric, histochemical, immunohistochemical, and stereological quantification, with special attention to extracellular matrix associated with this muscle at the structural and ultrastructural levels. Thirty patients with SAHS were divided into groups of 10 according to disease severity: mild, moderate, and severe SAHS. In addition, the control group consisted of 10 patients. Fragments of palatopharyngeal muscle removed from patients with SAHS and tonsillectomies from patients in the control group were histopathologically submitted to light microscopy and transmission electron microscopy. Histopathological evaluations by light and transmission electron microscopes showed differences in analyzed groups, such as reduction of the muscle fiber diameter in patients with SAHS, taking disease severity into consideration. In contrast, stereological analysis showed a gradual increase of the collagen and elastic system fibers relative frequencies, proportionally to SAHS seriousness. MMP-2 and MMP-9 immunostaining also showed an increased reaction in the muscle fiber cytoplasm and endomisium during SAHS progression. The ultrastructural analysis showed that palatopharyngeal muscle fibers presented cytoplasmic residual corpuscles, a sign of early cell aging. In conclusion, the increase of tissue compliance in individuals with SAHS can be, in addition to other factors, consequence of diminished contractile activity of the muscle fibers, which exhibited clear signs of early senescence. Moreover, extracellular matrix components changes may contribute to muscle myopathy during SAHS progression.


Subject(s)
Extracellular Matrix/pathology , Pharyngeal Muscles/pathology , Sleep Apnea, Obstructive/pathology , Adult , Histocytochemistry , Humans , Immunohistochemistry , Microscopy , Middle Aged , Severity of Illness Index
3.
BMC Med Genomics ; 3: 14, 2010 May 04.
Article in English | MEDLINE | ID: mdl-20441585

ABSTRACT

BACKGROUND: The development and progression of cancer depend on its genetic characteristics as well as on the interactions with its microenvironment. Understanding these interactions may contribute to diagnostic and prognostic evaluations and to the development of new cancer therapies. Aiming to investigate potential mechanisms by which the tumor microenvironment might contribute to a cancer phenotype, we evaluated soluble paracrine factors produced by stromal and neoplastic cells which may influence proliferation and gene and protein expression. METHODS: The study was carried out on the epithelial cancer cell line (Hep-2) and fibroblasts isolated from a primary oral cancer. We combined a conditioned-medium technique with subtraction hybridization approach, quantitative PCR and proteomics, in order to evaluate gene and protein expression influenced by soluble paracrine factors produced by stromal and neoplastic cells. RESULTS: We observed that conditioned medium from fibroblast cultures (FCM) inhibited proliferation and induced apoptosis in Hep-2 cells. In neoplastic cells, 41 genes and 5 proteins exhibited changes in expression levels in response to FCM and, in fibroblasts, 17 genes and 2 proteins showed down-regulation in response to conditioned medium from Hep-2 cells (HCM). Nine genes were selected and the expression results of 6 down-regulated genes (ARID4A, CALR, GNB2L1, RNF10, SQSTM1, USP9X) were validated by real time PCR. CONCLUSIONS: A significant and common denominator in the results was the potential induction of signaling changes associated with immune or inflammatory response in the absence of a specific protein.


Subject(s)
Gene Expression Regulation, Neoplastic , Mouth Neoplasms/metabolism , Proteome/metabolism , Annexin A5/metabolism , Apoptosis , Cell Proliferation , Down-Regulation , Electrophoresis, Gel, Two-Dimensional , Fibroblasts/metabolism , Genomics , Hep G2 Cells , Humans , Keratins/metabolism , Mouth Neoplasms/genetics , Nucleic Acid Hybridization , Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization , Stromal Cells/metabolism , Vimentin/metabolism
4.
Arch Med Sci ; 6(5): 772-9, 2010 Oct.
Article in English | MEDLINE | ID: mdl-22419938

ABSTRACT

INTRODUCTION: Susceptibility to head and neck squamous cell carcinoma may be modified by functional polymorphisms in genes involved in the folate pathway, such as cystathionine beta-synthase (CBS). The CBS 844ins68 polymorphism is associated with DNA methylation changes and cancer development. MATERIAL AND METHODS: A case-control retrospective study was conducted in 322 patients with head and neck squamous cell carcinoma and in 531 control subjects without cancer. The polymerase chain reaction-restriction fragment length polymorphism technique was used to genotype the polymorphism. For statistical analysis, χ(2) test was conducted to examine whether the genotypic frequency of CBS 844ins68 was in Hardy-Weinberg equilibrium and multiple logistic regression was used for comparisons between groups, and for interactions between the polymorphism and risk factors and clinical histopathological parameters. RESULTS: No significant difference in CBS 844ins68 genotypic distribution was observed between the groups. Age > 50 years, male gender and tobacco consumption were predictors of the disease with increased risk of 7.89 (95% CI: 5.56-11.21), 2.49 (95% CI: 1.72-3.62), 6.44 (95% CI: 4.63-8.96) and 2.29 times (95% CI: 1.71-3.06) respectively. There was no association between the distribution of the CBS 844ins68 genotype and risk factors for this disease. According to clinical histopathological parameters, CBS 884ins68 polymorphism presented high frequency in oral cavity (p < 0.05) and patients with the polymorphism presented less survival time (p < 0.05). CONCLUSIONS: We concluded that the CBS 844ins68 polymorphism is not associated with HNSCC risk and there is increased risk of this disease in male gender individuals smokers aged over 50 years. In adittion, the polymorphism is more frequent in patients with oral cavity as primary site and in patients with less survival time.

5.
Arch Facial Plast Surg ; 11(4): 221-9, 2009.
Article in English | MEDLINE | ID: mdl-19620526

ABSTRACT

OBJECTIVE: To present a graduated approach to refining the nasal lobule (a frequent complaint during consultations for rhinoplasty) based on anatomic features and to discuss the casuistics of this procedure since we began performing it. METHODS: A retrospective evaluation of the medical charts of 1152 patients who underwent rhinoplasty from 2003 to 2006; 641 patients fulfilled the criteria for our study (55.6%). Outcomes were assessed by comparing preoperative and last follow-up photographs and considering the width, symmetry, and contour of the nasal lobule. Cases were allocated into 7 groups: (1) no surgery on nasal tip; (2) interdomal breakup; (3) cephalic trim; (4) domal suture; (5) shield-shaped graft; (6) vertical dome division; and (7) replacement of lower lateral cartilages. RESULTS: Of the 641 patients enrolled in the study, 435 were women and 206 were men. Mean follow-up period was 1.5 years. An asymmetric tip was present in 28 patients (4.4%), and a persistent width of interdomal space in 34 (5.3%). None presented overnarrowing of interdomal space. Surgical revision rate to enhance refinement of the lobule was 5.6%. CONCLUSION: Our graduated approach has shown excellent outcomes, a high rate of patient satisfaction, and a low rate of revision.


Subject(s)
Nasal Cartilages/surgery , Nose/surgery , Rhinoplasty/methods , Adolescent , Adult , Age Factors , Cohort Studies , Esthetics , Female , Follow-Up Studies , Humans , Male , Middle Aged , Nasal Septum/surgery , Nose/physiopathology , Patient Satisfaction , Retrospective Studies , Risk Factors , Sex Factors , Suture Techniques , Treatment Outcome , Young Adult
6.
Rev. Soc. Bras. Cir. Craniomaxilofac ; 11(3,supl): 15-15, jun. 2008.
Article in Portuguese | LILACS | ID: lil-523542

ABSTRACT

Introdução: Vários enxertos e/ou implantes têm sido usados para reconstrução do dorso nasal. Em alguns casos, especialmente os narizes pós-cirurgia de câncer, traumático, acometidos por granulomatose e multioperados, a quantidade de aumento é maior que o normalmente disponível em auto-enxerto de septo e concha auricular. Objetivo: Avaliar a segurança e a eficácia do osso de mastóide como auto-enxerto para reconstrução do dorso nasal. Método: Um estudo de 20 pacientes consecutivos submetidos a reconstrução do dorso nasal com osso de mastóide, durante um período de 4 anos. O resultado foi avaliado principalmente por complicações e satisfação do paciente e cirurgião. Resultados: Os enxertos variaram de 5 a 12 mm em espessura. O período de seguimento variou de 6 meses a 4 anos. Dezessete (85%) pacientes apresentaram resultados satisfatórios para o cirurgião e o paciente. Um paciente mostrou aumento excessivo leve somente notado pelo cirurgião. Um paciente apresentou aumento deficiente, necessitando cirurgia revisional. Um paciente precisou de cirurgia de revisão devido a deslocamento do enxerto no primeiro mês de pós-operatório. Nenhum caso apresentou infecção ou absorção de enxerto. Conclusões: O osso de mastóide se apresentou como um material efetivo como auto-enxerto para reconstrução do dorso nasal. A taxa de complicação foi baixa. O seguimento a longo prazo mostrou que não ocorre absorção clinicamente significante.


Subject(s)
Humans , Mastoid/surgery , Nasal Septum/surgery , Transplantation, Autologous
7.
Micron ; 39(7): 910-4, 2008 Oct.
Article in English | MEDLINE | ID: mdl-18178447

ABSTRACT

Squamous cell carcinoma of the tongue is one of the most common head and neck cancer. Treatment in the early stages is still controversial. This study aims to correlate the apoptosis rate of primary tongue cancer with cervical node metastasis, found in the histopathological studies of specimens obtained from neck dissections or during clinical follow-up. Twenty patients, 65% males, mean age 64.5 years, without clinical evidence of cervical metastasis was included. Eighty-five percent were smokers and 40% were alcohol abusers. Mann-Whitney test was used for statistical analysis (p

Subject(s)
Apoptosis , Carcinoma, Squamous Cell/pathology , Head and Neck Neoplasms/pathology , Lymph Nodes/pathology , Neoplasm Metastasis/pathology , Tongue Neoplasms/pathology , Aged , Aged, 80 and over , Carcinoma, Squamous Cell/secondary , Carcinoma, Squamous Cell/surgery , Female , Follow-Up Studies , Humans , Male , Middle Aged , Risk Factors
8.
Arq. ciênc. saúde ; 14(2): 99-102, abr.-jun. 2007.
Article in Portuguese | LILACS | ID: lil-490336

ABSTRACT

Introdução: Devido às graves conseqüências advindas do uso prolongado de descongestionantes e por ser um dos remédios mais procurados dentro da automedicação no Brasil, resolvemos avaliar o grupo de pacientes usuários de descongestionante nasal para um melhor conhecimento desta população. Material e Métodos: Num período de seis meses, dos 234 pacientes que procuraram o Ambulatório de Otorrinolaringologia com sintomas nasais, 100 eram usuários de descongestionantes. Para estes foi aplicado um questionário sobre oshábitos de uso: freqüência, causas do início, indicação e, outros. Resultados: Dos pacientes abordados, 42,7% eram usuários e destes: 18,4% apresentavam alguma contra-indicação ao uso; 37% praticaram automedicação; 59% usavam o remédio além do período indicado e 32% usavam mais do que duas vezes ao dia. Conclusão: Concluiu-se que os pacientes entrevistados têm seu medicamento prescrito pelo médico,utilizam o medicamento por longos períodos, não consideram o uso crônico do descongestionante nasal como um problema de saúde pública, compram esse medicamento livremente nas farmácias e, por fim, os pacientes praticantes da automedicação possuem maior grau de escolaridade


Introduction: Due to the serious consequences caused by the prolonged use of nasal decongestants since they are easily available among self- medications in Brazil, we decided to evaluate a group of users of these drugs for a better knowledge of this population. Material and Methods: In a period of six months, out of 234 patients with nasal symptoms assisted in the Otorhinolaringology Outpatients, 100 were users of nasal decongestants. A questionnaire about their use habits was applied: frequency, causes of the beginning,indication and, others. Results: Out of these patients, 42.7% were users of some medications, and out these: 18.4% presented some contraindication to the use; 37% had practiced self-medication; 59% used the drug beyond the indicated period, and 32% used it more than twice a day. Conclusion: We concluded that the interviewed patients had their medication prescribed by the doctor, have been using it for long periods, have not considered the chronic use of the nasal decongestants as a problem of public health, have freely bought these drugs at drugstores, and finally, self- medication patients had high educational level


Subject(s)
Humans , Male , Female , Self Medication/adverse effects , Nasal Decongestants , Health Profile , Outpatient Clinics, Hospital
9.
Int J Cancer ; 120(12): 2582-9, 2007 Jun 15.
Article in English | MEDLINE | ID: mdl-17340616

ABSTRACT

Annexin 1 protein (ANXA1) expression was evaluated in tumor and mast cells in human larynx cancer and control epithelium. The effect of the exogenous ANXA1 (peptide Ac 2-26) was also examined during the cellular growth of the Hep-2 human larynx epidermoid carcinoma cell line. This peptide inhibited the proliferation of the Hep-2 cells within 144 hr. In surgical tissue specimens from 20 patients with larynx cancer, ultrastructural immunocytochemistry analysis showed in vivo down-regulation of ANXA1 expression in the tumor and increased in mast cells and Hep-2 cells treated with peptide Ac2-26. Combined in vivo and in vitro analysis demonstrated that ANXA1 plays a regulatory role in laryngeal cancer cell growth. We believe that a better understanding of the regulatory mechanisms of ANXA1 in tumor and mast cells may lead to future biological targets for the therapeutic intervention of human larynx cancer.


Subject(s)
Annexin A1/genetics , Gene Expression Profiling , Laryngeal Neoplasms/pathology , Mast Cells/metabolism , Aged , Aged, 80 and over , Annexin A1/analysis , Annexin A1/pharmacology , Cell Line, Tumor , Epithelial Cells/metabolism , Epithelial Cells/ultrastructure , Gene Expression/drug effects , Humans , Immunohistochemistry , Laryngeal Neoplasms/genetics , Laryngeal Neoplasms/metabolism , Larynx/metabolism , Larynx/pathology , Larynx/ultrastructure , Male , Microscopy, Immunoelectron , Middle Aged , Peptides/pharmacology , RNA, Messenger/genetics , RNA, Messenger/metabolism , Reverse Transcriptase Polymerase Chain Reaction , Time Factors , Tryptases/genetics , Tryptases/metabolism
10.
Arq. ciênc. saúde ; 12(4): 206-212, out.-dez. 2005. ilus
Article in Portuguese | LILACS | ID: lil-463650

ABSTRACT

No presente trabalho revisamos dados de literatura sobre o papel de telerradiografias cefalométricas laterais, procurando identificar associação entre as características ósseas craniofaciais e de tecidos moles com os dados clínicos e polissonográficos, verificando as áreas anatômicas que mais contribuem para a obstruçãodas vias aéreas superiores nos pacientes com Síndrome da Apnéia Obstrutiva do Sono (SAOS). Para avaliar se existe um padrão cefalométrico previsível para a Síndrome da Apnéia Obstrutiva do Sono, na presente pesquisa foram comparadas as diferenças das médias das dimensões esqueléticas craniofaciais e dos tecidos moles da faringe, em norma lateral. Diante dos dados de literatura concluímos que: os pacientes apnéicos possuem alterações no posicionamento das estruturas anatômicas ósseas, principalmente um posicionamento inferior do osso hióide em relação às vértebras cervicais, retrognatismo e dimensões aumentadas dos tecidos moles faríngeos, aumento no comprimento e largura do palato mole, principalmente, com diminuição do espaço aéreo póstero-superior, quando comparados a pessoas normais.


Subject(s)
Sleep Apnea, Obstructive/diagnosis , Cephalometry
11.
Rev. bras. otorrinolaringol ; 69(1): 16-18, jan.-fev. 2003.
Article in Portuguese | LILACS | ID: lil-335799

ABSTRACT

A laringomalácia é a causa mais comum de estridor respiratório na infância, sendo a malformaçäo congênita da laringe de maior incidência. Geralmente, associa-se a outras doenças e/ou malformaçöes, dentre elas a doença do refluxo gastroesofágico. Sua etiologia é desconhecida e a doença normalmente é autolimitada, com resoluçäo espontânea em cerca de 85 por cento dos casos, no entanto, 10 a 15 por cento dos pacientes apresentam quadro severo, com obstruçäo respiratória, necessitando de intervençäo cirúrgica. FORMA DE ESTUDO: Clínico retrospectivo. MATERIAL E MÉTODO: Esse estudo de revisäo avalia os resultados do Serviço de Otorrinolaringologia Pediátrica da Faculdade de Medicina de Säo José do Rio Preto, no tratamento da laringomalácia severa, onde quinze pacientes com diagnóstico clínico e nasofibroscópico foram submetidos a supraglotoplastia unilateral e avaliaçäo de lesöes sincrônicas associadas


Subject(s)
Humans , Child , Larynx , Gastroesophageal Reflux/etiology , Respiratory Sounds/etiology , Sleep Apnea Syndromes
12.
J. pediatr. (Rio J.) ; 77(2): 124-30, mar.-abr. 2001. tab
Article in Portuguese | LILACS | ID: lil-283106

ABSTRACT

Objetivo: realizar a avaliação da audição e o levantamento da prevalência de deficiências auditiva em amostras de crianças, na faixa etária de 3 a 6, em creches e pré-escolas municipais de São José do Rio Preto, SP. Métodos: foram realizadas audiometrias em campo livre para triagem, como primeira etapa, em 103 crianças de ambos os sexos, na referida faixa etária, em 8 creches e 8 pré-escolas previamente selecionadas. As crianças que apresentaram alterações audiométricas na triagem foram encaminhadas ao ambulatório de fonoaudiologia da instituição para realização de audiometria tonal convencional, em uma segunda etapa. A classificação da deficiêcia auditiva, em relação ao grau, foi feita segundo os critérios da OMS. Resultados: foram encontradas alterações na função auditiva em dez crianças (9,70 por cento, DP por cento=0,96) da pupolação do estudo. Destas, uma criança (0,97 por cento, DP por cento=0,96) do sexo masculino apresentou deficiência auditiva condutiva de grau leve na orelha esquerda (média OE=35 dB) e 9 crianças (8,73 por cento, DP por cento=2,78) apresentaram alterações nos limiares auditivos, por via aérea, nas frequências agudas de 4.000, 6.000 e/ou 8.000Hz. Cento e duas crianças (99,03 por cento, DP por cento=0,96 por cento), sendo 55 do sexo masculino (53,39 por cento, DP por cento=4,90 por cento e 47 do sexo feminino (45,64 por cento, DP por cento=4,90 por cento), não apresentaram deficiência auditiva, pelos critérios da OMS. Conclusões: a prevalência de 9,7 por cento de alterações na função auditiva encontrada na população do estudo vem a comprovar a necessidade da implantação de programas de prevenção e diagnóstico precoce da deficiência auditiva


Subject(s)
Humans , Male , Female , Hearing
13.
Rev. bras. otorrinolaringol ; 66(5): 454-456, Out. 2000.
Article in Portuguese | LILACS | ID: biblio-1022933

ABSTRACT

O carcinoma espinocelular de cabeça e pescoço é uma das neoplasias mais comuns. Entre esses tumores, os de língua são os de maior incidência. A presença de metástase cervical é considerada por alguns autores como o fator prognóstico mais importante, com decréscimo de cerca de 50% no tempo de sobrevida dos pacientes. o tratamento de pacientes com lesões iniciais de língua, T1 e T2, ainda é discutível com relação a dissecção cervical nos casos de pescoço N0 e, principalmente, se não há necessidade de acesso cervical para exérese da lesão primária. Esse estudo tem como objetivo avaliar a presença de metástases ocultas em T1 e T2 de língua intra-oral. Material e método: Foi utilizado neste estudo uma amostra de 20 pacientes, portadores de lesões T1 e T2 de língua em sua porção intraoral, tratados pelo Serviço de Cirurgia de Cabeça e Pescoço do Hospital de Base de São José do Rio Preto. Foram analisadas informações dos prontuários, com o intuito de se estabelecer um perfil desses pacientes, a presença de metástases cervicais clinicamente ocultas detectáveis apenas no exame anátomo-patológico e a evolução clínica dos pacientes. Resultados: A média de idade dos pacientes foi de 64,5 anos, variando de 46 a 81 anos; 65% da amostra foram compostos por indivíduos do sexo masculino e 35% pelos do sexo feminino. Metástases subclínicas estavam presentes em 25% dos casos. O tabagismo foi evidenciado em 85% dos pacientes; e o etilismo, em 40%. Conclusão: Os resultados deste estudo, compatível com o de outros autores, demonstra a presença de metástases ocultas em tumores de língua, mesmo em seu estádio inicial.


Head and neck squamous cell carcinoma is one of the most common neoplasias, and tongue tumors are among the most frequent types. Some authors consider that cervical metastases represent the most important prognostic factor, accounting for about 50% of reduction of patients' survival rates. Treatment of initial tongue lesions staged T1 and T2 still remains an issue for discussion: whether cervical dissection in cases of N0 neck should be performed or not, especially if there is no need for cervical acess in the exeresis of the primary lesion. This study aimed at assessing occult metastases staged Tl and T2 in the intraoral portion of the tongue. Material and method: We studied 20 patients who had tongue lesions staged T1 and T2 in its intraoral portion. The patients were treated at the Service of Head and Neck Surgery of Hospital de Base, São José do Rio Preto, SP. Their medical files were analyzed in order to draw a profile of the patients and the existence of-clinical occult cervical metastases only detected by anatomical pathologic analysis or clinical evolution of patients. Results: Patients' mean age was 64.5 years, ranging from 46 to 81 years, and divided into 65% male and 35% female subjects. There were subclinical metastases in 25% of the patients. Smoking was found in 85% of the cases and alcohol abuse, in 40% of them. Conclusion: The results found by the present study were consistent with the literature and demonstrated the presence of occult metastases of tongue tumors, even at initial stages.


Subject(s)
Humans , Male , Female , Tongue/anatomy & histology , Tongue/physiopathology , Mouth Neoplasms/pathology , Neoplasm Metastasis/drug therapy
14.
Rev. bras. otorrinolaringol ; 66(3,pt.1): 194-7, maio-jun. 2000. tab, graf
Article in Portuguese | LILACS | ID: lil-297455

ABSTRACT

Introduçäo: A amigdalectomia ou tonsilectomia asiociada ou näo à adenoidectomia é um dos procedimentos cirúrgicos mais antigos e mais praticados pela medicina. Desde a sua primeira descriçäo, vem sofrendo diversas modificaçöes, com o intuito de diminuir suas complicaçöes, sendo o sangramento a mais comum e mais temida delas. Objetivo: Avaliar a eficácia do agente hemostático subgalato de bismuto utilizado no intraoperatório de tonsilectomias após a dissecçäo ou curetagem das mesmas, seguindo um padräo de utilizaçäo e tempo de permanência do agente em contato com o leito cirúrgico de denoidectomia e/ou amigdalectomia e observando-se a hemostasia do mesmo. Material e método: Foram utilizados neste estudo trezentos e doze pacientes, submetidos a amigdalectomia e/ou adenoidectomia, procedimentos estes realizados por dissecçäo e curetagem, respectivamente, seguindo técnicas cirúrgicas consagradas e escritas na literatura. As cirurgias foram realizadas por residentes do Departamento de Otorrinolaringologia e Serviço de Cirurgia de Cabeça e Pescoço da Faculdade de Medicina de Säo José do Rio Preto /SP. Conclusäo: Foi obtido um índice de sangramento no pós-operatório da ordem de 0,33 por cento, observado em um caso de amigdalectomia, em que foi necessária reintervençäo cirúrgica com controle subseqüente da hemorragia, demonstrando que o uso do subgalato de bismuto é uma forma segura e simples de obter hemostasia em tal procedimento


Subject(s)
Humans , Male , Female , Child , Adenoidectomy , Bismuth/therapeutic use , Hemostasis, Surgical/methods , Tonsillectomy
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