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1.
Artículo en Inglés | MEDLINE | ID: mdl-38791826

RESUMEN

BACKGROUND: Surveys conducted in different regions of the world show that the prevalence rates of health risk behaviors (HRBs) in university students are sometimes higher than those found in non-university populations. This study aims to identify the prevalence rates and demographic and academic environment correlates associated with HRBs among Brazilian university students. METHODS: In a cross-sectional epidemiological study, a random sample of 5310 university students answered an online questionnaire, with demographic (sex, age, skin color, marital status, and paid work) and academic setting information (housing type, size of campus, year, and shift of study), as well as items clustered in four HRB domains: personal safety and violence, sexual behavior and contraception, addictive substance use, eating habits, physical activity, and sleep. The data were analyzed statistically using bivariate analysis and hierarchical multiple regression. RESULTS: The highest prevalence rates occurred in HRBs clustered in the domain of eating habits, physical activity, and sleep (>60%), while HRBs for personal security and violence were less prevalent (<15%). From 15% to 35% of university students assumed HRBs regarding addictive substance use, and approximately 50% reported risky sexual behavior. The university students most susceptible to HRBs were men, aged ≥ 22 years, living far from their family, studying on larger campuses, attending night classes, and with two or more years of study at the university. CONCLUSION: The findings suggest that policies and interventions in the university context aimed at students' readiness to engage in a healthy lifestyle should target specific correlates associated with HRBs.


Asunto(s)
Conductas de Riesgo para la Salud , Estudiantes , Humanos , Brasil/epidemiología , Masculino , Estudiantes/estadística & datos numéricos , Estudiantes/psicología , Femenino , Universidades , Adulto Joven , Estudios Transversales , Adulto , Prevalencia , Adolescente , Encuestas y Cuestionarios , Conducta Sexual/estadística & datos numéricos , Ejercicio Físico , Asunción de Riesgos
2.
Cureus ; 16(1): e52284, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38357045

RESUMEN

In cat-scratch disease (CSD), hematogenous spread may result in atypical presentations. Ocular manifestations develop in a minority of patients, with treatment being important in reducing long-term visual sequelae. Bone infection is rare. We present the case of a 52-year-old woman, with close contact with cats, reporting acute unilateral blurred vision and presenting papilledema, optic disc pallor, and peripapillary hemorrhage. Etiologic study of optic neuritis revealed an elevated positive Bartonella IgG; hence, treatment for CSD with doxycycline plus rifampin and corticosteroids was started. Concomitant lumbar pain of increasing intensity warranted magnetic resonance imaging, which revealed L3-L4 vertebral osteomyelitis with spondylodiscitis. Given the temporal link with CSD diagnosis and the significant clinical improvement since its treatment was started, an etiologic link was presumed and antibiotics were prolonged. This case stands out for the presence of distinct atypical CSD manifestations in the same patient. Further studies are needed to determine the optimal treatment for rare manifestations, particularly bone infection.

3.
Acta Med Port ; 36(12): 841-845, 2023 Dec 04.
Artículo en Inglés | MEDLINE | ID: mdl-37837360

RESUMEN

Species associated with visceral leishmaniasis, such as L. infantum, may be responsible for cutaneous leishmaniasis (CL), particularly in the Mediterranean region. In immunosuppressed hosts, classification as complicated CL is essential, as the risk of mucosal leishmaniasis warrants systemic therapy. We report the case of a forty-seven-year-old male living in Portugal, with Fabry disease and receiving immunosuppressive treatment with adalimumab and methotrexate for Crohn's disease. There was no travel history outside of Europe. He presented a two-year-old, 5.5 cm plaque with a well-defined hyperkeratotic elevated border and central, painless ulceration on his back. The biopsy revealed parasites inside macrophages suggestive of Leishmania, and PCR identified the species as L. infantum. A biopsy via nasal endoscopy excluded mucosal involvement. Classification as complicated CL dictated treatment with liposomal amphotericin B and subsequent topical paramomycin. The rarity of CL in Portugal may delay its diagnosis, especially in autochthonous infections. Treatment choice is complicated by the heterogeneity of drugs available worldwide. As the global prevalence of CL increases, it is important to be aware of this diagnosis.


Asunto(s)
Antiprotozoarios , Leishmania infantum , Leishmaniasis Cutánea , Leishmaniasis Visceral , Humanos , Masculino , Persona de Mediana Edad , Antiprotozoarios/uso terapéutico , Terapia de Inmunosupresión , Leishmaniasis Cutánea/tratamiento farmacológico , Leishmaniasis Cutánea/epidemiología , Leishmaniasis Cutánea/parasitología , Leishmaniasis Visceral/tratamiento farmacológico
4.
Cureus ; 15(2): e35118, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-36945282

RESUMEN

Pulmonary actinomycosis is an uncommon and challenging infectious disease with non-specific symptoms and imaging findings. The authors report a case of a 68-year-old man with diabetes and a history of past smoking who presented with anorexia and weight loss with no significant findings on physical examination. A parenchymal consolidation in the anterior segment of the right upper lobe was detected after a chest computed tomography (CT). Bacterial colonies of Actinomyces species were identified in the histology of transbronchial biopsy. Imaging reassessment after six weeks of treatment with oral amoxicillin showed progression with a high metabolism 10.5 standardized uptake value (SUV) documented on the f-fluorodeoxyglucose positron emission tomography/CT. Concern about the possibility of lung cancer was raised and ruled out by a negative transthoracic needle biopsy. The diagnosis of pulmonary actinomycosis with pyogenic superinfection was presumed. The patient was successfully treated with intravenous amoxicillin and clavulanate for two weeks, followed by six months of oral treatment.

5.
Motrivivência (Florianópolis) ; 35(66): 1-17, 2023.
Artículo en Portugués | LILACS-Express | LILACS | ID: biblio-1451807

RESUMEN

Os futebóis ainda não se constituem como uma prática integrante na dinâmica de vida de muitas mulheres no Brasil. Para buscar entender as relações e os motivos que as fazem não vivenciar estas determinadas modalidades, este artigo aborda as experiências de mulheres menos habilidosas com as aulas de futebol/futsal na Educação Física escolar. A partir do aporte teórico/metodológico da História Oral foram realizadas dezoito entrevistas com mulheres adultas que tiveram contato com a modalidade na escola, mas que hoje não possuem ligação com estes esportes. Através dos relatos, conclui-se que o desinteresse pelo futebol/futsal por parte das meninas menos habilidosas e a resistência dos meninos em jogar com as meninas, são resultado de tecnologias de gênero que constituem não só os alunos e alunas, mas também os professores/as que acabam sendo agentes que contribuem para as normas sociais de gênero estabelecidas.


Football is not yet an integral practice in the life dynamics of many women in Brazil. In order to seek to understand the relationships and the reasons that make them not experience these certain modalities, this article addresses the experiences of less skilled women with soccer/futsal classes in school Physical Education. From the theoretical/methodological contribution of Oral History, eighteen interviews were carried out with adult women who had contact with the modality at school, but who today have no connection with these sports. Through the reports, it is concluded that the lack of interest in soccer/futsal on the part of the less skilled girls and the resistance of the boys to play with the girls, are the result of gender technologies that constitute not only the students, but also the teachers. who end up being agents that contribute to established social gender norms.


El fútbol aún no es una práctica integral en la dinámica de vida de muchas mujeres en Brasil. Con el fin de buscar comprender las relaciones y las razones que hacen que no experimenten estas determinadas modalidades, este artículo aborda las experiencias de mujeres menos hábiles con las clases de fútbol/fútsal en la Educación Física. A partir del aporte teórico/metodológico de la Historia Oral, se realizaron dieciocho entrevistas a mujeres adultas que tuvieron contacto con la modalidad en la escuela, pero que hoy no tienen vinculación con estos deportes. A través de los informes se concluye que el desinterés por el fútbol/fútbol sala por parte de las niñas menos habilidosas y la resistencia de los niños a jugar con las niñas, son resultado de tecnologías de género que constituyen no solo a los estudiantes, sino también los docentes, quienes terminan siendo agentes que contribuyen a las normas sociales de género establecidas.

6.
Cureus ; 15(12): e49974, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-38179390

RESUMEN

Hematologic malignancies and chemotherapy are risk factors for COVID-19 progression and mortality. Immunocompromised hosts, particularly those with severe B-cell depletion, can shed viable viruses for extended periods, which can lead to persistent infection. We present the case of a 73-year-old male with diffuse large B-cell lymphoma (stage IV-B) under curative immunochemotherapy with rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP). After the first episode of mild COVID-19, he developed two severe relapses following the third and fourth cycles of R-CHOP. Lung CT scans performed in both episodes showed new-onset ground-glass infiltrates and fibrosis of previously affected pulmonary segments. In light of similar semiquantitative SARS-CoV-2 viral loads between episodes, without further risk exposure or microbiological findings, persistent COVID-19 with severe clinical relapses was assumed and successfully treated with polyclonal immunoglobulin and remdesivir. Whole-genome sequencing was performed in all samples, confirming the same specimen, which belonged to the B.1.177 lineage. This case stands out for the unusually long viral persistence and the various relapses of severe COVID-19 related to the worsening immune status with each immunochemotherapy cycle.

7.
Acta Med Port ; 34(6): 469-483, 2021 Jun 01.
Artículo en Portugués | MEDLINE | ID: mdl-34009114

RESUMEN

We propose a guideline about the risk, prevention and treatment of infection in the patient under immunomodulatory or immunosuppressive therapy in the context of autoimmune or autoinflammatory disease. It is divided into three sections: drugs and associated risk of infection; immunizations; risk, prevention, and treatment of specific infections. The treatment of autoimmune diseases involves the use of immunosuppressive or immunomodulatory therapies, with an increasing number of new drugs being used. It is associated with an increased risk of infection, which may be present globally or only for specific agents, varying widely depending on the pharmacological class and even within the same class. The prevention strategy and clinical management need to be individually tailored and there are several key factors: characterization of the disease that prompts the immunosuppression, understanding of the mechanism of action of the immunosuppressive drug, knowledge of previous infections, recognition of risk factors, laboratory test results, vaccine administration, monitoring of clinical signs and symptoms and patient education.


O presente protocolo aborda o risco, prevenção e tratamento da infeção no doente sob terapêutica imunomoduladora ou imunossupressoraem contexto de doença autoimune ou autoinflamatória. Subdivide-se nas seguintes secções: fármacos e risco associado de infeção; imunizações; risco, prevenção e tratamento de infeções específicas. Com um número crescente de novos fármacos em utilização nos últimos anos, o tratamento de doenças autoimunes envolve a utilização de terapêuticas imunossupressoras ou imunomoduladoras e associa-se a aumento do risco de infeção, que pode estar presente de uma forma global ou apenas para infeções por agentes específicos, variando amplamente consoante a classe farmacológica e mesmo dentro desta. Na estruturação da estratégia preventiva são fundamentais a caracterização da patologia que motiva a imunossupressão, a compreensão do mecanismo de ação do imunossupressor, a aferição de infeções prévias, o reconhecimento de fatores de risco, a realização de rastreios laboratoriais, a administração de vacinas, a educação do doente e a monitorização de sintomas e sinais clínicos, na dependência de uma gestão clínica necessariamente individualizada.


Asunto(s)
Enfermedades Autoinmunes , Terapia de Inmunosupresión , Enfermedades Autoinmunes/tratamiento farmacológico , Humanos , Tolerancia Inmunológica , Inmunomodulación , Inmunosupresores
8.
Rev. cuba. estomatol ; 56(4): e2207, oct.-dez. 2019. graf
Artículo en Portugués | LILACS | ID: biblio-1093260

RESUMEN

RESUMO Introdução: A lesão central de células gigantes é própria dos ossos gnáticos, sendo um tumor benigno não odontogênico. É uma lesão de crescimento predominantemente lento, bem circunscrito e assintomático, geralmente diagnosticada através de algum exame de rotina ou, em casos mais avançados, quando se começa a visualizar alguma alteração estético-anatômica ou através da queixa do paciente de algum desconforto localizado na região. Objetivo: Ilustrar um caso clínico de lesão central de células gigantes e sua resolução envolvendo momento cirúrgico e reabordagem que inclui a homeopatia na proposta terapêutica. Apresentação do caso: Paciente do sexo feminino, inicialmente com 4 anos de idade com uma lesão na região de pré-maxila. Após avaliação radiográfica, tomográfica, exames sanguíneos e biópsia incisional, foi realizada, em primeiro momento, a exérese da lesão sob anestesia geral, por curetagem com aplicação de solução de carnoy. Após proservação e surgimento de imagem radiopaca nos exames, deu-se início ao tratamento não invasivo com homeopatia e injeções de corticoide visando à redução e neoformação óssea em área sugestiva de tecido cicatricial. Conclusões: Abordagens mais conservadoras podem ser, em muitos casos, uma opção plausível que acaba por livrar o paciente de cirurgias mutilantes(AU)


RESUMEN Introducción: La lesión central de células gigantes es propia de los huesos gnáticos, lo que constituye un tumor benigno no odontogénico. Es una lesión de crecimiento predominantemente lento, bien circunscrita y asintomática, generalmente diagnosticada a través de algún examen de rutina o en casos más avanzados cuando se empieza a visualizar alguna alteración estético-anatómica o el paciente que se queja de algún malestar localizado en la región. Objetivo: Presentar un caso clínico de lesión central de células gigantes y su resolución involucrando momento quirúrgico y reabordaje que incluye la homeopatía en la propuesta terapéutica. Presentación del caso: Paciente del sexo femenino, inicialmente con 4 años de edad con una lesión en la región de pre-maxila. Después de la evaluación radiográfica, tomográfica, exámenes sanguíneos y biópsia incisional con el diagnóstico, se realizó en un primer momento la exéresis de la lesión bajo anestesia general, por curetaje con aplicación de solución de carnoy. En los exámenes de acompañamiento, después de la aparición de imagen radiopaca, se inició el tratamiento no invasivo con homeopatía e inyecciones de corticoides para la reducción y neoformación ósea en el área sugestiva de tejido cicatricial. Conclusiones: Los enfoques más conservadores pueden ser, en muchos casos, una opción plausible que termina librando al paciente de cirugías de mutilación(AU)


ABSTRACT Introduction: Giant cell central lesion is characteristic of the gnathic bones, being a non-odontogenic benign tumor. Classified as a predominantly slow grotwh, well-circumscribed and asymptomatic lesion usually diagnosed through routine examination or in some and more advanced cases once it begins to create some aesthetic-anatomical alteration or when the patient starts complaining of some located discomfort in the region. Objective: To present a clinical case of central giant cell lesion and its resolution involving surgical approach and second management, which includes homeopathy as a therapeutic proposal. Case presentation: central giant cell lesion located in the premaxilla region in a 4 years old female patient. After radiographic, tomographic and blood exams evaluation, followed by incisional biopsy and diagnostic, leading to surgical approach to remove the entire lesion by curettage with Carnoy's solution application under general anesthesia. After appearance of radiopaque imaging in the proservation examinations, the non-invasive treatment by corticoid injection and homeopathy got started aiming the reduction of cicatricial tissue's suggestive area and neoformation of the bone. Conclusions : approaches that are more conservative can be, in many cases, a plausible option that ends up ridding the patient of mutilating surgeries(AU)


Asunto(s)
Humanos , Femenino , Preescolar , Enfermedades Maxilares/cirugía , Tumores de Células Gigantes/diagnóstico por imagen , Homeopatía/efectos adversos
9.
IDCases ; 15: e00493, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30766796

RESUMEN

Prostatitis is a clinical condition of difficult management and with limited antimicrobial options, especially in the setting of antimicrobial resistance. Recurrences are frequent and can be severe. Limited reports support the use of fosfomycin for chronic prostatitis by ESBL-producing bacteria. We reported a case of a patient with chronic prostatitis caused by ESBL-producing Escherischia coli with several relapses after prolonged periods of treatment with broad-spectrum intravenous antibiotic therapy and with recurring urinary symptoms after transuretheral prostatic resection. After resolution of the last infection, we performed a long-term eradication antimicrobial treatment with 3 g of fosfomycin once daily, altered to 3 g every 48 h after 10 days due to diarrhea (which resolved with the dose change). After three months with this dosage, fosfomycin was switched to a once-weekly regimen which was maintained for further 9 months. After 9 months of follow-up without antimicrobial treatment, the patient has remained free of urinary symptoms. Experience with fosfomycin for chronic prostatitis caused by ESBL-producing E. coli is limited to three case reports and two case series. Intraprostatic measurements have shown adequate penetration of fosfomycin into prostatic tissue. Accordingly, our report suggests that fosfomycin can be used as eradication therapy in a patient with a prior history of chronic prostatitis by ESBL-producing bacteria with recurring urinary infections after surgical treatment.

10.
Pulmonology ; 25(3): 162-167, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30309821

RESUMEN

SETTING: Nontuberculous mycobacteria (NTM) are increasingly recognized as causative agents of opportunistic infections in humans for which effective treatment is challenging. There is, however, very little information on the prevalence of NTM drug resistance in Portugal. OBJECTIVE AND DESIGN: Our aim was to analyze the drug susceptibility testing (DST) performed in NTM at the Portuguese National Health Institute Dr. Ricardo Jorge from February 2003 to February 2016. A total of 262 DST were included in the analysis. RESULTS: Most (94%) M. avium intracellulare complex isolates showed in vitro susceptibility to clarithromycin. All M. kansasii isolates were susceptible to rifampicin and ethambutol and 97.1% were susceptible to isoniazid. The majority of rapidly-growing mycobacteria (RGM) demonstrated in vitro susceptibility to amikacin, clarithromycin and cefoxitin. However, in RGM there was a marked increase on the relative risk of having sulfamethoxazole resistance in isolates resistant to ciprofloxacin compared to susceptible isolates. CONCLUSION: Tested NTM in Portugal revealed in vitro susceptibility to most of the antimicrobials currently recommended for treatment. However, our results also suggest that sulfamethoxazole should be avoided in treatment of RGM resistant to ciprofloxacin (or vice versa). Further trials that correlate the in vitro DST results with the clinical outcome are needed in order to reach conclusions on efficient antimicrobial therapy.


Asunto(s)
Antibacterianos/farmacología , Infecciones por Mycobacterium no Tuberculosas/tratamiento farmacológico , Micobacterias no Tuberculosas/efectos de los fármacos , Antibacterianos/uso terapéutico , Claritromicina/farmacología , Claritromicina/uso terapéutico , Farmacorresistencia Bacteriana , Etambutol/farmacología , Humanos , Pruebas de Sensibilidad Microbiana , Infecciones por Mycobacterium no Tuberculosas/clasificación , Portugal , Rifampin/farmacología , Rifampin/uso terapéutico
11.
Urol Int ; 101(4): 387-390, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30317230

RESUMEN

INTRODUCTION: Renal cell carcinoma (RCC) reveals a tendency towards venous invasion in its advanced stages, making clinical management challenging. Survival may be improved following surgery, but is less clear if it applies to patients with metastatic disease at diagnosis. MATERIALS AND METHODS: Review of clinical files of patients submitted to surgery for RCC at our institution. RESULTS: Twenty-one patients underwent radical nephrectomy and thrombectomy from 2000 to 2017, with a median follow-up of 25 months. Eighteen (85.7%) men and 3 (14.3%) women, with median age of 63 at the time of diagnosis, were included. The thrombus was in the renal vein in 10 (47.6%) patients and had extension to inferior vena cava (IVC) in 11 (52.4%). The level of involvement in IVC was grade II in 4 (19%) cases, grade III in 4 (19%) cases and grade IV in 3 (14.4%) cases. Surgery was successful in all but 1 patient. Ten patients died during the follow-up (47.6%), resulting in a 5-year overall survival of 34.8%. When considering the metastatic population at diagnosis, the overall survival at 5 years was 45.7%. CONCLUSION: Radical nephrectomy with removal of the venous thrombus remains the preferential treatment for patients with RCC with venous thrombus, even if they have metastatic disease at diagnosis.


Asunto(s)
Carcinoma de Células Renales/cirugía , Neoplasias Renales/cirugía , Trombosis/cirugía , Anciano , Carcinoma de Células Renales/complicaciones , Carcinoma de Células Renales/mortalidad , Carcinoma de Células Renales/patología , Femenino , Estudios de Seguimiento , Humanos , Neoplasias Renales/complicaciones , Neoplasias Renales/mortalidad , Neoplasias Renales/patología , Masculino , Persona de Mediana Edad , Metástasis de la Neoplasia , Estudios Retrospectivos , Análisis de Supervivencia , Trombectomía , Trombosis/complicaciones , Trombosis/mortalidad , Trombosis/patología , Resultado del Tratamiento
12.
J Sports Med Phys Fitness ; 56(1-2): 9-18, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-25286894

RESUMEN

BACKGROUND: The purpose of this study was to examine the effects of an additional set of exhaustive exercise before local muscular endurance (LME) training on maximal dynamic strength and endurance of quadriceps muscle in young men. METHODS: Twenty-seven healthy men (age: 20.9±1.8 years) performed one repetition maximum (1RM), muscular endurance, and magnetic resonance imaging (MRI) tests on two separate occasions (before and after an 8-wk LME training program using a bilateral knee extensor machine). After baseline testing, the subjects were divided into three groups: untrained control (CO, N.=9), traditional training (TR, N.=9), and prior exhaustive training (PE, N.=9). Both the TR and PE groups trained using the same LME training protocol (2 d∙wk-1; 3 sets of 15-20 repetitions at 50% of 1RM) throughout the 8-wk experimental period; the only difference was that the PE group performed an additional set of exhaustive exercise at 80% of 1RM immediately before each training session. RESULTS: After 8 wk, the PE group experienced a greater (P<0.05) increase in 1RM, endurance, and work efficiency than the TR group. Additionally, no changes (P>0.05) in cross-sectional area (CSA), body mass and daily dietary intake were observed from pre- to post-test in either group. CONCLUSIONS: These results suggest that the inclusion of a single set of exhaustive exercise at 80% of 1RM immediately before LME training can be a suitable strategy for inducing additional beneficial effects on quadriceps strength and endurance in young men.


Asunto(s)
Músculo Esquelético/fisiología , Resistencia Física/fisiología , Músculo Cuádriceps/fisiología , Entrenamiento de Fuerza/métodos , Adolescente , Adulto , Dieta , Humanos , Imagen por Resonancia Magnética , Masculino , Fuerza Muscular/fisiología , Músculo Esquelético/anatomía & histología , Adulto Joven
13.
IDCases ; 2(4): 102-5, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26793472

RESUMEN

Visceral leishmaniasis is an infection with an insidious and disabling course caused by parasites of the genus Leishmania. In Europe, it is mostly associated with HIV infection. Systemic lupus erythematosus and its treatment are associated with increased risk of infection, neoplastic and concomitant autoimmune disorders. The association of these diseases may go unnoticed. A 60 year-old Caucasian woman with lupus presented with a one-year history of fever, malaise, weakness and weight loss. The highlights on physical examination were pallor, palpable hepatosplenomegaly and low-grade fever. Blood tests showed pancytopenia, hyperproteinemia with hypoalbuminemia and hypergammaglobulinemia; electrophoresis showed a polyclonal gamma curve. Full-body CT scan revealed massive hepatosplenomegaly. Microbiology investigation was negative for the most common pathogens, including tuberculosis. There were no signs of hematologic malignancy in the bone marrow smear. PCR for Leishmania infantum was positive both in blood and bone marrow. The patient was treated with liposomal amphotericin B, and immunosuppression was adjusted. She showed rapid clinical improvement and 6 months later had no signs of disease. The differential diagnosis in a patient with lupus presenting with fever and multisystemic manifestations includes infectious or neoplastic disorders. The patient lived in an endemic area of Leishmania, and typical clinical and analytical changes were all present, making this case highly educational. The case highlights the importance of a patient's epidemiological background and how it can lead to the diagnosis and timely treatment of a rare disease.

14.
Int J Urol ; 20(10): 956-62, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23634720

RESUMEN

Botulinum toxin A is available under three different protein complexes that are not interchangeable until appropriate comparative studies are undertaken. The best studied for the treatment of urinary incontinence as a result of neurogenic detrusor overactivity and overactive bladder/idiopathic detrusor overactivity is onabotulinum toxin A. This brand is only approved for the treatment of urinary incontinence as a result of neurogenic detrusor overactivity at a dose of 200 U and idiopathic detrusor overactivity at a dose of 100 U. In patients with detrusor overactivity as a result of spinal cord injury or multiple sclerosis, 200 U of onabotulinum toxin A should be injected in 30 different sites above the trigone. It was shown to be highly effective in curing or decreasing urinary symptoms of incontinence, increasing quality of life, increasing bladder capacity and decreasing maximal detrusor pressure. This effect was independent of the concomitant use of oral anticholinergic drugs. Adverse events were mild, mainly urinary tract infections and high postvoid residual requiring clean intermittent catheterization. In patients with overactive bladder/idiopathic detrusor overactivity, 100 U of onabotulinum toxin A should be injected in 20 sites above the trigone. It markedly decreases urinary incontinence and improves quality of life. Frequency and urgency episodes are also decreased. Adverse events are mild, mainly urinary tract infections and urinary retention. The latter occurred in just 5% of the patients. Candidates for onabotulinum toxin A treatment should be warned that the effect of the toxin is transient and that repeated injections will be required to maintain the effect in the long term. There is no evidence that repeated injections will have a decreased efficacy.


Asunto(s)
Toxinas Botulínicas Tipo A/administración & dosificación , Vejiga Urinaria Hiperactiva/tratamiento farmacológico , Incontinencia Urinaria/tratamiento farmacológico , Toxinas Botulínicas Tipo A/efectos adversos , Humanos , Antagonistas Muscarínicos/administración & dosificación , Antagonistas Muscarínicos/efectos adversos , Fármacos Neuromusculares/administración & dosificación , Fármacos Neuromusculares/efectos adversos
15.
Auton Neurosci ; 166(1-2): 35-8, 2012 Jan 26.
Artículo en Inglés | MEDLINE | ID: mdl-22037502

RESUMEN

PURPOSE: To evaluate the effect of a transient receptor potential vanilloid 1 (TRPV1) antagonist GRC 6211 on neurogenic detrusor overactivity (NDO) of spinal origin. MATERIALS AND METHODS: Cystometries under urethane anaesthesia were obtained in 14 chronic spinalized rats to confirm NDO. Two groups were created. In the first one (n=10), GRC 6211 (0.01, 0.1 and 1mg/kg weight) was administered via the duodenum in cumulative doses and cystometries performed 150 min after the administration of each dose of the drug. In the second group (n=4), used as control, the animals were submitted to cystometries during 12 hours, without administration of GRC 6211. Frequency and amplitude of bladder contractions were recorded in both groups. RESULTS: The mean (±SDev) bladder detrusor muscle contraction frequency of spinalized rats was 0.7±0.27 contractions/min. GRC 6211 produced a significant dose-dependent effect, with the frequency diminished to 0.53±0.23, 0.40±0.20 and 0.20±0.13 contractions/min, respectively. The mean (± SDev) amplitude of bladder contractions was 48.4±4.4 cmH(2)O. After administration of 0.01 mg/kg, 0.1mg/kg and 1mg/kg of GRC 6211, the amplitude decreased to 47.1±4.3, 45.6±5.6 and 40.2±4.1 cm H(2)O respectively. The effect was significant at 0.1 and 1mg/kg doses. Cystometries performed in the control group of spinalized rats showed no evidence of detrusor fatigue caused by the urethane anaesthesia and long duration of the experiment. CONCLUSION: TRPV1 antagonists may be very effective in reducing NDO of spinal origin. This finding may have profound implications for the pathogenesis and future treatment options of patients with spinal NDO.


Asunto(s)
Músculo Liso/efectos de los fármacos , Traumatismos de la Médula Espinal/fisiopatología , Canales Catiónicos TRPV/antagonistas & inhibidores , Urea/análogos & derivados , Vejiga Urinaria Neurogénica/tratamiento farmacológico , Vejiga Urinaria/efectos de los fármacos , Animales , Modelos Animales de Enfermedad , Relación Dosis-Respuesta a Droga , Femenino , Contracción Muscular/efectos de los fármacos , Contracción Muscular/fisiología , Músculo Liso/inervación , Músculo Liso/fisiopatología , Presión , Ratas , Ratas Wistar , Traumatismos de la Médula Espinal/complicaciones , Canales Catiónicos TRPV/fisiología , Resultado del Tratamiento , Urea/farmacología , Vejiga Urinaria/inervación , Vejiga Urinaria/fisiopatología , Vejiga Urinaria Neurogénica/etiología , Vejiga Urinaria Neurogénica/fisiopatología , Urodinámica/efectos de los fármacos , Urodinámica/fisiología
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