Platelet-rich plasma for osteoarthritis treatment.

We conducted a comprehensive and systematic search of the literature on the use of platelet-rich plasma (PRP) in the treatment of osteoarthritis, using the Medline, Lilacs, Cochrane and SciELO databases, from May 2012 to October 2013. A total of 23 studies were selected, with nine being controlled trials and, of these, seven randomized, which included 725 patients. In this series, the group receiving PRP showed improvement in pain and joint function compared to placebo and hyaluronic acid. The response lasted up to two years and was better in milder cases. However it was found that there is no standardization in the PRP production method, neither in the number, timing, and volume of applications. Furthermore, the populations studied were not clearly described in many studies. Thus, these results should be analyzed with caution, and further studies with more standardized methods would be necessary for a more consistent conclusion about the PRP role in osteoarthritis.

Platelet-rich plasma for osteoarthritis treatment / Plasma rico em plaquetas no tratamento da osteoartrite

ABSTRACT We conducted a comprehensive and systematic search of the literature on the use of platelet-rich plasma (PRP) in the treatment of osteoarthritis, using the Medline, Lilacs, Cochrane and SciELO databases, from May 2012 to October 2013. A total of 23 studies were selected, with nine being controlled trials and, of these, seven randomized, which included 725 patients. In this series, the group receiving PRP showed improvement in pain and joint function compared to placebo and hyaluronic acid. The response lasted up to two years and was better in milder cases. However it was found that there is no standardization in the PRP production method, neither in the number, timing, and volume of applications. Furthermore, the populations studied were not clearly described in many studies. Thus, these results should be analyzed with caution, and further studies with more standardized methods would be necessary for a more consistent conclusion about the PRP role in osteoarthritis.

RESUMO Fez-se uma pesquisa abrangente e sistemática da literatura sobre o uso de plasma rico em plaquetas (PRP) no tratamento da osteoartrite nas bases de dados do Medline, Lilacs, Cochrane e SciELO, de maio de 2012 a outubro de 2013. Foram selecionados 23 estudos, entre eles nove ensaios controlados e, desses, sete randomizados, os quais incluíram 725 pacientes. Nessa casuística, o grupo que recebeu PRP apresentou melhoria na dor e na função articular quando comparado ao que recebeu placebo e ácido hialurônico. A resposta durou até dois anos e foi melhor nos casos mais leves. Entretanto, verificou-se que não há uma padronização no método de obtenção do PRP, bem como no número, intervalo e volume de aplicações. Além disso, as populações estudadas também não foram claramente descritas em muitos estudos. Desse modo, esses resultados devem ser analisados com cautela e seriam necessários novos estudos com métodos mais padronizados para uma conclusão mais consistente sobre o papel do PRP na osteoartrite.

Características da arterite de Takayasu no início da doença e de acordo com o gênero / Features of the onset of Takayasu's arteritis acccording to gender

FUNDAMENTO: Embora haja diversos estudos epidemiológicos publicados referentes à artrite de Takayasu (AT), nenhum analisou a influência do gênero nas manifestações clínicas e laboratoriais ou as alterações vasculares no início da doença. OBJETIVO: Analisar a influência do gênero nas manifestações clínicas e laboratoriais e nas variações de imagiologia vascular no início da AT. MÉTODOS: Estudo de coorte retrospectivo, unicêntrico que avaliou 55 pacientes consecutivos com AT entre 1982 e 2012. Todos os dados clínicos e resultados de testes laboratoriais relacionados ao início da doença foram analisados. Incluímos apenas pacientes de 12 a 35 anos no diagnóstico para excluir fatores relacionados à idade. RESULTADOS: Analisamos 17 homens e 38 mulheres, sendo a maioria caucasiana, com uma média de idade comparável entre os gêneros. Não houve diferença de gênero referente às características clínicas ou laboratoriais, comorbidades ou tabagismo, exceto pela dor abdominal, que apresentou ser mais comum em homens. Com relação às lesões vasculares, a presença de aneurismas da aorta ascendente foi significativamente mais frequente em homens. O gênero masculino representou um fator de risco independente para a ocorrência de dor abdominal e aneurismas da aorta ascendente em pacientes com AT. CONCLUSÃO: A dor abdominal e aneurismas da aorta ascendente ocorreram com mais frequência em homens com AT, sugerindo um perfil de doença mais severa em homens.

BACKGROUND: Although there are various published epidemiological studies regarding Takayasu's arteritis (TA), none have analyzed the influence of gender on the clinical and laboratory manifestations or vascular alterations at disease onset. OBJECTIVES: To analyze the influence of gender on clinical and laboratory manifestations and variations in vascular imaging at TA onset. METHODS: A retrospective, unicentric cohort study that evaluated 55 consecutive TA patients between 1982 and 2012. All available clinical data and laboratory test results related to the onset of the disease were analyzed. We included only patients aged 12-35 years at diagnosis to exclude age-related factors. RESULTS: We analyzed 17 men and 38 women, mostly Caucasian, with a comparable mean age between genders. There was no gender difference regarding the clinical or laboratory characteristics, comorbidities, or smoking habit, except for abdominal pain, which was more common in men. Regarding vascular lesions, the presence of ascending aortic aneurysms was significantly more frequent in males. Male gender represented an independent risk factor for the occurrence of abdominal pain and ascending aortic aneurysms in TA patients. CONCLUSION: Abdominal pain and ascending aortic aneurysms occurred more frequently in men with TA, suggesting a more severe disease profile in males.

Features of the onset of Takayasu's arteritis according to gender.

BACKGROUND: Although there are various published epidemiological studies regarding Takayasu's arteritis (TA), none have analyzed the influence of gender on the clinical and laboratory manifestations or vascular alterations at disease onset. OBJECTIVES: To analyze the influence of gender on clinical and laboratory manifestations and variations in vascular imaging at TA onset. METHODS: A retrospective, unicentric cohort study that evaluated 55 consecutive TA patients between 1982 and 2012. All available clinical data and laboratory test results related to the onset of the disease were analyzed. We included only patients aged 12-35 years at diagnosis to exclude age-related factors. RESULTS: We analyzed 17 men and 38 women, mostly Caucasian, with a comparable mean age between genders. There was no gender difference regarding the clinical or laboratory characteristics, comorbidities, or smoking habit, except for abdominal pain, which was more common in men. Regarding vascular lesions, the presence of ascending aortic aneurysms was significantly more frequent in males. Male gender represented an independent risk factor for the occurrence of abdominal pain and ascending aortic aneurysms in TA patients. CONCLUSION: Abdominal pain and ascending aortic aneurysms occurred more frequently in men with TA, suggesting a more severe disease profile in males.