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1.
Radiol. bras ; 56(1): 21-26, Jan.-Feb. 2023. graf
Article in English | LILACS-Express | LILACS | ID: biblio-1422533

ABSTRACT

Abstract Objective: To evaluate acute and chronic changes seen on angiographic and histopathological studies of porcine rete mirabile, comparing those treated with the Menox liquid embolic system (LES) and those treated with the Onyx LES. Materials and Methods: Five pigs, each weighing approximately 35 kg, were submitted to rete mirabile embolization under general anesthesia and fluoroscopic guidance, with the Menox LES or Onyx LES. Four animals were treated with the Menox LES and underwent cerebral angiography, followed by euthanasia, at 1, 30, 60, and 90 days after embolization. One animal was treated with the Onyx LES underwent the same procedures at 30 days after embolization. In a subsequent histopathological analysis, we compared the Menox LES and Onyx LES in terms of the acute and chronic changes observed. Results: We observed no significant changes in blood pressure, heart rate, or electrocardiographic parameters that could be attributed to the super-selective infusion of dimethyl sulfoxide or the Menox embolic agent. Fluoroscopy showed adequate material opacity, appropriate progression to the center of the rete mirabile and complete unilateral embolization. Microcatheters were uneventfully detached from the embolized nidus. We observed mild to moderate intravascular and extravascular inflammatory responses, without histological evidence of necrotizing arteritis. There were no adverse neurovascular events. Conclusion: The Menox LES appears to be safe and effective, as well as being apparently equivalent to the Onyx LES in terms of the postprocedure angiographic and histopathological findings.


Resumo Objetivo: Avaliar as alterações angiográficas e histopatológicas agudas e crônicas em rete mirabile suína tratadas com o Menox liquid embolic system (LES) e comparar essas alterações com a embolização com Onyx LES. Materiais e Métodos: A embolização da rete mirabile com Menox LES e Onyx LES foi realizada em cinco suínos pesando cerca de 35 kg sob anestesia geral e orientação fluoroscópica. Quatro animais tratados com Menox LES foram submetidos a angiografia cerebral seguida de eutanásia após 1, 30, 60 e 90 dias e um animal tratado com Onix LES foi submetido ao mesmo procedimento após 30 dias. A análise histopatológica subsequente para alterações agudas e crônicas avaliou o desempenho do Menox LES comparado ao Onyx LES. Resultados: Não foram observadas alterações significativas atribuíveis à infusão superseletiva de dimetilsulfóxido ou Menox nos parâmetros de pressão arterial, frequência cardíaca ou eletrocardiograma. A fluoroscopia mostrou opacidade adequada do material, progressão adequada para o centro da rete mirabile e embolização unilateral completa. Os microcateteres foram retirados do nidus embolizado sem complicações. Observou-se resposta inflamatória intravascular e extravascular leve a moderada, sem indício histológico de arterite necrosante. Nenhum dos casos apresentou eventos neurovasculares adversos. Conclusão: A injeção de Menox LES mostrou-se segura e eficaz, além de ser equivalente ao Onyx LES em relação aos achados angiográficos e histopatológicos pós-procedimento.

2.
Arch. endocrinol. metab. (Online) ; 67(5): e000633, Mar.-Apr. 2023. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1439252

ABSTRACT

ABSTRACT Objective: Cervical traumatic neuromas (CTNs) may appear after lateral neck dissection for metastatic thyroid carcinoma. If they are misdiagnosed as metastatic lymph nodes (LNs) in follow-up neck ultrasound (US), unnecessary and uncomfortable fine-needle aspiration biopsy are indicated. The present study aimed to describe US features of CTNs and to assess the US performance in distinguishing CTNs from abnormal LNs. Subjects and methods: Retrospective evaluation of neck US images of 206 consecutive patients who had lateral neck dissection as a part of thyroid cancer treatment to assess CTN's US features. Diagnostic accuracy study to evaluate US performance in distinguishing CTNs from abnormal LNs was performed. Results: Eight-six lateral neck nodules were selected for analysis: 38 CTNs and 48 abnormal LNs. CTNs with diagnostic cytology were predominantly hypoechogenic (100% vs. 45%; P = 0.008) and had shorter diameters than inconclusive cytology CTNs: short axis (0.39 cm vs. 0.50 cm; P = 0.03) and long axis (1.64 cm vs. 2.35 cm; P = 0.021). The US features with the best accuracy to distinguish CTNs from abnormal LNs were continuity with a nervous structure, hypoechogenic internal lines, short/long axis ratio ≤ 0.42, absent Doppler vascularization, fusiform morphology, and short axis ≤ 0.48 cm. Conclusion: US is a very useful method for assessing CTNs, with good performance in distinguishing CTNs from abnormal LNs.

4.
Clinics ; 75: e1843, 2020. tab, graf
Article in English | LILACS | ID: biblio-1133446

ABSTRACT

To systematically review and analyze the medical literature to assess ultrasonography echotexture changes in thyroid cancer patients for the detection of chronic sialadenitis caused by radioiodine therapy. Methods: Sources were retrieved from PubMed, Scopus, EMBASE and LILACS through November 2018. All studies that assessed ultrasonographic features before 131I administration and at 12 months after 131I administration were selected. After data extraction, statistical analysis was performed by using Stata software. Results: From a total of 435 studies, 4 studies involving 665 patients were considered eligible, and echotexture heterogeneity was found with a significant difference. Conclusions: Ultrasound echotexture may detect chronic sialadenitis secondary to salivary radioiodine therapy.


Subject(s)
Humans , Sialadenitis/etiology , Sialadenitis/diagnostic imaging , Thyroid Neoplasms/radiotherapy , Thyroid Neoplasms/diagnostic imaging , Ultrasonography , Iodine Radioisotopes/adverse effects
5.
Arch. endocrinol. metab. (Online) ; 63(3): 300-305, May-June 2019. tab, graf
Article in English | LILACS | ID: biblio-1011171

ABSTRACT

ABSTRACT Objective Hürthle cell carcinomas (HCCs) of the thyroid have been recently reclassified as a separate entity due to their distinct clinical and molecular profiles. Few studies have assessed the ability of preoperative characteristics in differentiating HCCs from Hürthle cell adenomas (HCAs) due to the low prevalence of both lesions. This study aimed to compare the preoperative features of HCCs and HCAs and evaluate the diagnostic performance of ultrasound in distinguishing between both. Subjetcs and methods Retrospective study including 101 patients (52 HCCs and 49 HCAs) who underwent thyroid surgery from 2000 to 2016. Clinical, ultrasonographic, and histological data were reviewed. Diagnostic performance of suspicious sonographic features was analyzed in 51 cases (24 HCCs and 27 HCAs). Results Hürthle cell neoplasms were predominant in females. Subjects ≥ 55 years represented 58% of the cases of HCCs and 53% of those of HCAs. Carcinomas were significantly larger (p < 0.001), and a tumor size ≥ 4 cm significantly increased the risk of malignancy (odds ratio 3.67). Other clinical, cytologic, and sonographic data were similar between HCCs and HCAs. Among the HCCs, the lesions were purely solid in 54.2%, hypoechoic in 37.5%, and had coarse calcifications in 12.5%, microcalcifications in 8.3%, irregular contours in 4.2%, and a taller-than-wide shape in 16.7%. Predominantly/exclusive intranodular vascularization was observed in 52.6%. Overall, 58% of the HCCs were classified as TI-RADS 4 or 5 compared with 48% of the HCAs. TI-RADS 4 or 5 had a specificity of only 51.8% and a positive likelihood ratio of 1.21. Conclusions Apart from the lesion size, no other preoperative feature adequately distinguished HCCs from HCAs. Sonographic characteristics raising suspicion for malignancy, which are mostly present in papillary carcinomas, were infrequent in HCCs. New tools must be developed to improve preoperative diagnosis and deferral of surgery in cases of adenomas.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Thyroid Gland/diagnostic imaging , Thyroid Neoplasms/diagnostic imaging , Adenoma/diagnostic imaging , Carcinoma, Papillary, Follicular/diagnostic imaging , Ultrasonography, Doppler/methods , Thyroid Gland/surgery , Thyroid Gland/pathology , Thyroid Neoplasms/surgery , Thyroid Neoplasms/pathology , Adenoma/surgery , Adenoma/pathology , Retrospective Studies , Carcinoma, Papillary, Follicular/surgery , Carcinoma, Papillary, Follicular/pathology , Diagnosis, Differential
6.
São Paulo; s.n; 2015. [215] p. ilus, tab, graf.
Thesis in Portuguese | LILACS | ID: biblio-871508

ABSTRACT

INTRODUÇÃO: A criocirurgia (crioablação) percutânea em tecidos ósseos próximos da medula espinhal e sistema nervoso periférico tem sido feita na prática clínica, porém sem estudos experimentais que provem sua segurança e eficácia. O objetivo deste trabalho foi desenvolver um modelo experimental suíno in vivo de crioablação vertebral guiada por tomografia computadorizada de feixe cônico (TCFC). Um estudo preliminar de morfometria da coluna vertebral suína por imagens de TCFC foi realizado. Um protocolo específico de crioablação foi criado para adaptar a bola de gelo às dimensões da vértebra suína e testado em modelos in vitro, ex vivo e in vivo. MÉTODOS: O comitê institucional de cuidados com os animais aprovou este estudo. Dezesseis parâmetros anatômicos foram medidos em 36 vértebras lombares suínas e comparados às medidas aferidas nas imagens de TCFC e TC multidetectores (TCMD). Três simuladores in vitro / ex vivo foram desenvolvidos para o posicionamento de sensores de temperatura (termopares) em volta de uma sonda de congelamento. As isotermas foram obtidas durante um protocolo duplo de congelamento-descongelamento de 2-8 minutos. Vinte e duas crioablações vertebrais guiadas por TCFC foram realizadas em oito suínos, mediante termometria e dissecção por dióxido de carbono (CO2) no espaço epidural a fim de proteger os nervos. O seguimento clínico foi realizado até seis dias antes da eutanásia. Os dados clínicos e radiológicos foram correlacionados com o estudo histopatológico à microscopia de luz (n=20) ou eletrônica de transmissão (n=2). RESULTADOS: Na avaliação anatômica da coluna lombar suína a TCFC se mostrou um método de imagem comparável à TCMD e ao estudo anatômico, com correlação significativa (p < 0,05) em todas as variáveis, exceto aquelas que incluiu o tecido cartilaginoso dos planaltos vertebrais. As isotermas registradas foram mais frias no modelo ex vivo imerso em gel (-34 °C e -2 °C; -30 °C e 3 °C; -10 °C e 13 °C, respectivamente), do que nos...


INTRODUCTION: Percutaneous spine cryosurgery (cryoablation) close to nerves and spinal cord has been performed in the clinical practice, however without experimental studies proving its safety and efficacy. The aim of this work was to develop an experimental swine model of in vivo cone beam computed tomography (CBCT) guided vertebral cryoablation. A preliminary morphometric study of the porcine spine by CBCT imaging was carried out. A specific cryoablation protocol was proposed to adapt the "ice ball" to the swine vertebrae dimensions. Subsequently, the protocol was tested in in vitro, ex vivo and in vivo models. METHODS: The institutional animal care committee approved this study. Sixteen anatomical parameters were measured in 36 lumbar swine vertebrae and compared to the same measurements of the CBCT and multidetector CT (MDCT). Three models of in vitro / ex vivo studies were developed for the positioning of thermocouples around the cryoprobe. Isotherms were obtained from measured temperatures for each minute during a 2-8 minutes double freezing-thawing protocol. Twenty -two CBCT-guided vertebral cryoablations were performed in eight pigs. Epidural thermocouples registered the temperatures while carbon dioxide (CO2) was injected in the epidural space to protect nerves. The clinical follow-up was carried out until six days before euthanasia. Clinical and radiologic data were correlated to the histopathology study with light microscopy (n=20) or electron transmission microscopy (n=2). RESULTS: CBCT was proven to be a comparable imaging method to MDCT with significant correlation (p < 0.05) in all variables, except in those including the cartilaginous tissue of the vertebral plateau. The registered isotherms were colder in the ex vivo model embedded in gel (-34 °C and -2 °C; -30 °C and 3 °C; -10 °C and 13 °C, respectively) than in the in vitro model (-23 °C and 3 °C; -7 °C and 10 °C; 1 °C and 16 °C) or the ex vivo model without gel (-30 °C and 28...


Subject(s)
Animals , Male , Female , Carbon Dioxide , Cone-Beam Computed Tomography , Cryosurgery , Models, Animal , Spine , Swine
7.
Rev. méd. Minas Gerais ; 24(1)jan.-mar. 2014.
Article in Portuguese | LILACS | ID: lil-720024

ABSTRACT

O diagnóstico da paracoccidioidomicose requer a presença de dados epidemiológicos e de algumas manifestações clínicas mais típicas, entretanto, depende da propedêutica complementar que ainda requer métodos intervencionistas, o diagnóstico diferencial com patologias de grande relevância como tuberculose e linfomas, e o controle de cura.Nesta atualização são discutidos os avanços nessas várias áreas que inclui a propedêutica complementar, o diagnóstico diferencial e o controle de cura, apontando para as perspectivas de desenvolvimento que poderão ajudar a definir melhor a sua abordagem.


The diagnosis of paracoccidioidomycosis requires epidemiological data to be available and for the presence of some more typical clinical manifestations.It requires complementary investigation with interventional methods, differential diagnosis of pathologies of great importance such as tuberculosis and lymphomas, and cure control. This update discussesthe advances in these various areas, which include complementary investigation, differential diagnosis and cure control, pointing to development prospects that may help better define the best approach to this disease.


Subject(s)
Humans , Paracoccidioidomycosis/diagnosis , Paracoccidioidomycosis/epidemiology , Brazil , Diagnosis, Differential , Diagnostic Techniques and Procedures
8.
Rev. Soc. Bras. Med. Trop ; 43(6): 651-656, Nov.-Dec. 2010. ilus, tab
Article in English | LILACS | ID: lil-569425

ABSTRACT

INTRODUCTION: The purpose of this study was to compare respiratory signs and symptoms between patients with and without chest X-ray abnormalities in order to establish the meaning of radiographic findings in pulmonary PCM diagnosis. METHODS: The epidemiological, clinical and radiological lung findings of 44 patients with paracoccidiodomycosis (PCM) were evaluated. Patients were divided into two groups of 23 and 21 individuals according to the presence (group 1) or absence (group 2) of chest X-ray abnormalities, respectively, and their clinical data was analyzed with the aid of statistical tools. RESULTS: As a general rule, patients were rural workers, young adult males and smokers - group 1 and 2, respectively: males (91.3 percent and 66.7 percent); mean age (44.4 and 27.9 year-old); smoking (34.7 percent and 71.4 percent); acute/subacute presentation (38.1 percent and 21.7 percent); chronic presentation (61.9 percent and 78.3 percent). The most frequent respiratory manifestations were - group 1 and 2, respectively: cough (25 percent and 11.4 percent) and dyspnea (22.7 percent and 6.8 percent). No statistical difference was observed in pulmonary signs and symptoms between patients with or without radiographic abnormalities. The most frequent radiological finding was nodular (23.8 percent) or nodular-fibrous (19 percent), bilateral (90.5 percent) and diffuse infiltrates (85.7 percent). CONCLUSIONS: Absence of statistical difference in pulmonary signs and symptoms between these two groups of patients with PCM indicates clinical-radiological dissociation. A simplified classification of radiological lung PCM findings is suggested, based on correlation of these data and current literature review.


INTRODUÇÃO: Comparar sinais e sintomas respiratórios entre pacientes com e sem alterações à radiografia de tórax para se estabelecer o significado dos achados radiográficos no diagnóstico da paracoccidioidomicose pulmonar. MÉTODOS: Os achados epidemiológicos, clínicos e radiológicos de 44 pacientes com paracoccidioidomicose (PCM) foram avaliados. Os pacientes foram divididos em dois grupos de 23 e 21 indivíduos de acordo com a presença (grupo 1) ou ausência (grupo 2) de anormalidades à radiografia de tórax, respectivamente, e seus dados clínicos foram analisados com auxílio de ferramentas estatísticas. RESULTADOS: Como regra geral, os pacientes eram trabalhadores rurais do sexo masculino, tabagistas e em idade adulta jovem - grupo 1 e 2, respectivamente: homens (91,3 por cento e 66,7 por cento); média de idade (44,4 e 27,9 anos); tabagismo (34,7 por cento e 71,4 por cento); forma aguda/subaguda (38,1 por cento e 21,7 por cento); forma crônica (61,9 por cento e 78,3 por cento). As manifestações respiratórias mais frequentes foram - grupo 1 e 2, respectivamente: tosse (25 por cento e 11,4 por cento) e dispnéia (22,7 por cento e 6,8 por cento). Nenhuma diferença estatística foi observada nos sinais e sintomas respiratórios entre pacientes com ou sem anormalidades radiográficas. Os achados radiológicos mais frequentes foram o padrão nodular (23,8 por cento) ou nodular-fibrótico (19 por cento), bilateral (90,5 por cento) e infiltrado difuso (85,7 por cento). CONCLUSÕES: A ausência de diferença estatística nos sinais e sintomas pulmonares entre estes dois grupos de pacientes com PCM sugere dissociação clínico-radiológica. Uma classificação simplificada dos achados radiológicos pulmonares da PCM é sugerida, com base na correlação destes dados e revisão da literatura atual.


Subject(s)
Adolescent , Adult , Aged , Child , Female , Humans , Male , Middle Aged , Young Adult , Lung Diseases, Fungal , Paracoccidioidomycosis , Acute Disease , Chronic Disease , Retrospective Studies , Socioeconomic Factors
9.
Rev. méd. Minas Gerais ; 20(n.esp)nov. 2010. ilus
Article in Portuguese | LILACS | ID: lil-568297

ABSTRACT

Relata-se o caso de paciente com risco de fratura acetabular por lesão osteolítica metastática dolorosa, submetido à cimentoplastia percutânea acetabular bem-sucedida, por intermédio da radiologia intervencionista. Discutem-se os aspectos clínicos, imagenológicos e técnicos do procedimento.


We present the case of a patient under acetabular risk fracture secondary to an ostheolytic painful metastasis treated by a successful percutaneous acetabular cementoplasty in the interventional radiology service. The clinical, imaging and technical aspects are discussed.


Subject(s)
Humans , Male , Middle Aged , Acetabulum/surgery , Fractures, Bone , Radiology, Interventional , Acetabulum/injuries
10.
Radiol. bras ; 37(4): 291-294, jul.-ago. 2004.
Article in Portuguese | LILACS | ID: lil-364716

ABSTRACT

O objetivo deste trabalho foi comparar a tomografia computadorizada helicoidal com os métodos imaginológicos atualmente disponíveis para a abordagem dos pacientes com dor lombar aguda e revisar brevemente as características fisiopatológicas da urolitíase e a evolução da sua abordagem diagnóstica. Foi revista a literatura publicada nos últimos 30 anos, comparando os seguintes métodos: radiografia simples de abdome, urografia excretora, ultra-sonografia e tomografia computadorizada helicoidal. Esta última se mostrou método de alta sensibilidade e especificidade para o diagnóstico de urolitíase, sendo que, virtualmente, todos os cálculos são identificados por este método, exceto em pacientes em uso de indinavir. A radiografia simples de abdome associada à ultra-sonografia têm acurácia semelhante à tomografia computadorizada helicoidal, contudo, esta foi superior como método de avaliação isolado. A literatura sugere que a tomografia computadorizada helicoidal é útil na avaliação de pacientes com dor lombar aguda quando disponível, possibilitando também o diagnóstico diferencial entre as várias doenças que simulam os sintomas de urolitíase.


The aim of this study is to compare helical computed tomography with imaging studies currently used to evaluate patients with acute low back pain. In addition, we briefly review the pathophysiology of urolithiasis. The literature published in the last 30 years was reviewed, and the following methods were discussed: plain abdominal radiographs, intravenous pielography, ultrasound of the urinary tract, and helical computed tomography. Helical computed tomography showed high sensitivity and specificity for detecting urolithiasis, virtually showing all stones, except in patients receiving indinavir. The accuracy of plain abdominal radiographs associated with ultrasound was similar to helical computed tomography, although the latter showed superiority as an isolated method. Data from literature suggest that whenever helical computed tomography is available, it is helpful in the evaluation of low back pain and also allows differential diagnosis between conditions that mimic the symptoms of urolithiasis.


Subject(s)
Humans , Urinary Calculi/diagnosis , Diagnostic Imaging , Urinary Calculi , Urinary Tract Physiological Phenomena , Urinary Calculi/pathology , Diagnosis, Differential , Low Back Pain , Radiography, Abdominal , Urinary Tract , Tomography, Spiral Computed , Urography
11.
Rev. méd. Minas Gerais ; 13(4): 231-233, out.-dez. 2003. graf
Article in Portuguese | LILACS | ID: lil-589806

ABSTRACT

A paracoccidioidomicose (PCM) é a infecção fúngica sistêmica de maior prevalência na América Latina. Sua real prevalência, entretanto, não é conhecida, pois não é de notificação compulsória. Foram analisados, retrospectivamente, 74 pacientes com PCM atendidos no HC, entre 1975 e 2001. AS informações foram analisadas através do aplicativo EPIINFO 6.04. Os pacientes apresentaram a seguinte distribuição: 1) 54 (73%) eram homens; 2) 43 (58,1%) residiam em áreas urbanas e 26(35,1%) em áreas rurais de MG; 3) 47 (63,5%) relataram contato com área rural; 4) 28 (37,8%) eram lavradores, 19 (25,7%) eram prestadores de serviços em áreas urbanas, 15 (20,3%) eram estudantes, 6 (8,1%) eram "do lar" e 4 (5,4%) eram domésticas; 5) 31 (41,9%) eram feodérmico, 21 (28,4%) eram leucodérmicos, e 19 (25,7%) melanodérmicos.


Paracoccidioidomycosis (PCM) is the most prevalent systemic fungal infection in Latin America. However, its real prevalence is not known because there is not compulsory notification. A sample of 74 patients with PCM attended in a university hospital, between 1975 and 2001, was evaluated. The data were analyzed through EPIINFO 6.04 program. The patients had the following distribuition: 1) 54 (73%) men. 2) 43 (58,1%) living in urban areas and 26 (35,1%)in rural areas of Minas Gerais State. 3) 47 (63,5%) reported contact with rural area. 4) 28 (37,8%) were rural workers, 19 (25,7%) worked in urban areas, 15 (20,3%) were students, 6 (8,1%) were housewives and 4 (5,4%) were domestic maids. 5) 31 (41;9%) were mulattos, 21 (28,4%) were white, and 19 (25,7%) were black.


Subject(s)
Humans , Male , Female , Paracoccidioidomycosis/epidemiology , Brazil , Retrospective Studies , Hospitals, University
12.
Rev. bras. reumatol ; 42(5): 334-337, set.-out. 2002. ilus
Article in Portuguese | LILACS | ID: lil-413674

ABSTRACT

Os autores descrevem um caso de lúpus eritematoso sistêmico (LES) em corticoterapia a longo prazo, que evoluiu com lesões cutâneas em membro superior esquerdo, sendo diagnosticada cromomicose causada por Fonsecaea pedrosoi. A prevalência da cromomicose é maior em pacientes imunocompetentes e sua associação com doenças imunossupressoras, incluindo as colagenoses, é rara.


Subject(s)
Humans , Female , Middle Aged , Chromoblastomycosis , Lupus Erythematosus, Systemic
13.
Rev. méd. Minas Gerais ; 11(4): 230-235, out.-dez. 2001. graf, tab
Article in Portuguese | LILACS | ID: lil-588781

ABSTRACT

O presente estudo procura analisar o perfil dos médicos registrados no Conselho Regional de Medicina quanto à educação continuada e mercado de trabalho. Foi enviado questionário para cerca de 19.000 médicos, sendo respondidos e devolvidos 3.074 (16,1%). Os questionários foram agrupados em quatro faixas etárias, homogeneizando esses grupos quanto à situação profissional: até 30 anos, 31 a 40, 41 a 60 e mais de 60 anos de idade. Dados obtidos demonstraram uma população médica predominantemente jovem (48% abaixo de 40 anos), grande parte tem residência médica (74%), pequena parte possui mestrado (7,7%), doutorado (3,7%) ou formação no exterior (10,8%). Observou-se a existência de profissionais com multi-empregos, concentrados na região metropolitana de Belo Horizonte e melhor remuneração entre 41 e 60 anos de idade. Esse trabalho fornece dados para a busca de soluções na luta contra a obsolescência médica.


This study is aimed at analyzing the profile of physicians registered with the Regional Council of Medicine, as to their continuing education and the related labor market. Questionnaires were submitted to about 19.000 physicians, of which 3,074 were answered and returned (16,1%). The questionnaires were classified by age and grouped into four major categories for the purpose of homogenizing the groups as to their professional status, e.g.: up to 30 years of age, from 31 to 40, 41 to 60 and over 60 years of age. The data gathered revealed a predominantly young medical population (48% below 40 years of age), an extensive attendance of medical residence (74%), a small dedication to post graduate studies (7,7%), doctorate studies (3,7%) and overseas academic studies (10,8%). The study showed professionals with multiple jobs, concentrated in the metropolitan region, and earning better remuneration between 41 and 60 years of age. This paper contributes with data to the search for solutions in fighting against with stagnation.


Subject(s)
Humans , Education, Medical, Continuing , Physicians/statistics & numerical data , Brazil , Internship and Residency , Surveys and Questionnaires
15.
Rev. méd. Minas Gerais ; 9(2): 77-9, abr.-jun. 1999. ilus
Article in Portuguese | LILACS | ID: lil-247706

ABSTRACT

Paciente adulta jovem, com hipertensäo arterial sistêmica (HAS) crônica e miomatose uterina, internada no Hospital das Clínicas/UFMG para ser submetida à histerectomia. Evidenciou-se hipopotassemia e pressäo arterial elevada no pré-operatório, ambas refratárias à terapêutica medicamentosa. Surgiu diarréia líquida sem repercussöes sistêmicas ou evidências de etiologia infecciosa, que persistiu durante quase toda a internaçäo. A ultrassonografia revelou massa em topografia de glândula supra-renal esquerda. Foi realizada adrenalectomia através de videolaparoscopia, evidenciando-se melhora parcial dos níveis pressóricos no período pós-operatório. O potássio sérico normalizou-se e a diarréia desapareceu progressivamente. O exame anátomo-patológico da glândula revelou adenoma de supra-renal. O presente caso evidencia a necessidade de se manter postura crítica constante sobre a busca de explicaçäo para a hipertensäo arterial sistêmica.


Subject(s)
Humans , Female , Adult , Adrenal Cortex Neoplasms/pathology , Adrenocortical Adenoma/pathology , Hyperaldosteronism/complications , Hypertension/etiology , Adrenal Cortex Neoplasms/surgery , Adrenocortical Adenoma/surgery , Diarrhea/complications , Hypokalemia/complications
16.
Rev. Inst. Med. Trop. Säo Paulo ; 38(4): 293-7, jul.-ago. 1996. ilus
Article in English | LILACS | ID: lil-182833

ABSTRACT

Os efeitos da ivermectina, uma droga semi-sintetica amplamente utilizada para o tratamento de doencas parasitarias do gado, foram observados em larvas de Culex quinquefasciatus. Os efeitos toxicos e a avaliacao da mortalidade foram investigados apos 5,15 30 e 60 minutos de exposicao a 1, 5 ou 10 ppm de solucao de ivermectina. As observacoes foram realizadas 24 e 48 horas apos o inicio do experimento, e perda de mobilidade, paralisia progressiva e alta mortalidade de larvas foram registradas. Os efeitos da ivermectina observados nas larvas de mosquito estao provavelmente correlacionados com a ativacao de canais de Cloro em membranas celulares


Subject(s)
Culex/drug effects , Insect Vectors/drug effects , Ivermectin/pharmacology , Culex/classification
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