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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Sinovectomia radioisotópica de joelhos com Ítrio-90 e Samário-153 hidroxiapatita em pacientes com artrite reumatoide / Radiation Synovectomy of knees with Yttrium-90 and Samarium-153 particulate hydroxyapatite in rheumatoid arthritis patients

Santos, Marla Francisca dos [UNIFESP] 28 July 2010 (has links) (PDF)
Made available in DSpace on 2015-07-22T20:50:49Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-07-28 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Objetivos: Comparar a efetividade e tolerância da sinovectomia radioisotópica realizada pelo 90Y e pelo 153SmPHYP associados ao HT no tratamento de sinovite crônica de joelhos em pacientes com artrite reumatoide (AR). Material e Métodos: 84 pacientes com AR (90 joelhos) com sinovite crônica de joelhos participaram de um estudo controlado, randomizado, duplo-cego. Os pacientes foram randomizados para receber infiltração do joelho guiada por fluoroscopia com 5 mCi de Ítrio-90 associado a 40 mg de hexacetonide de triancinolona (HT) (grupoY/HT) ou 15 mCi de Samário-153 hidroxiapatita associado a 40 mg de hexacetonide de triancinolona (grupo Sm/HT) ou 40 mg de hexacetonide de triancinolona isolada (grupo HT). Foram realizadas avaliações “cegas” dos pacientes no tempo inicial (T0), após uma (T1), quatro (T4), 12 (T12), 32 (T32), e 48 (T48) semanas da intervenção através dos seguintes instrumentos de avaliação: escala visual analógica (EVA) de dor e edema, rigidez matinal, amplitude de movimento, circunferência do joelho, Escala Visual Analógica de Melhora (EVAM) segundo o paciente e o avaliador, porcentagem de melhora segundo o paciente, questionário de avaliação funcional HAQ, questionário genérico de qualidade de vida SF-36, questionário de avaliação funcional Lequesne de joelho, consumo diário de diclofenaco e de prednisona, número de telefonemas para médico, número de idas ao hospital, número de efeitos adversos. Resultados: a amostra foi homogênea no tempo inicial e houve três perdas antes da intervenção. Houve diferença estatística entre os grupos apenas para a variável EVA de dor (p=0,022*), a favor do grupo Y/HT em relação ao grupo Sm/HT (p=0,025*) em T1 e em relação ao grupo HT (p=0,026*) em T48. O grupo Sm/HT apresentou mais efeitos adversos (p=0,042*) e o grupo HT apresentou mais efeitos adversos não relacionados com o procedimento (0,012*). Para outras variáveis não houve diferença entre os grupos. Conclusão: a sinovectomia radioisotópica do 90Y associado ao HT apresentou melhor resposta do que a do 153SmPHYP associado ao HT e do que a do HT isolado apenas em relação à dor. / Objectives. The aim of the present study was to investigate effectiveness of and tolerance to Yttrium-90 and Samarium-153-particulate hydroxyapatite radiation synovectomy in patients with rheumatoid arthritis (RA) and chronic knee synovitis. Methods. Eight-four patients (90 knees) with chronic knee synovitis and RA (according to the American College of Rheumatology criteria) participated in a controlled double-blinded trial. Patients were randomized to receive an intra-articular injection with either 5 mCi Yttrium-90 plus 40 mg of triamcinolone hexacetonide (Y/TH Group), 15 mCi Samarium-153-particulate hydroxyapatite plus 40 mg of triamcinolone hexacetonide (Sm/TH Group) or 40 mg triamcinolone hexacetonide alone (Control Group). Blinded examination at baseline (T0), one (T1), four (T4), 12 (T12), 32 (T32) and 48 (T48) weeks post-intervention was performed on all patients and included a visual analog scale (VAS) for joint pain and swelling, morning stiffness, range of motion, knee circumference, Likert scale, percentage of improvement, Stanford Health Assessment Questionnaire (HAQ), SF-36 Questionnaire, Lequesne index, use of non-steroidal anti-inflammatory drugs, use of oral corticosteroids, events and adverse effects, calls to the physician and hospital visits. Results. The sample was homogeneous at T0 and there were three withdrawals prior to the injections. No differences were found between groups for most variables. Regarding the variable pain (VAS), there was a significantly better response in the Y/TH Group versus the Sm/TH Group at T1 (p = 0.025*) and versus TH alone at T48 (p = 0.026*). The Sm/TH group exhibited more adverse effects (p = 0.042*), but these were mild and transitory. No severe adverse effects were reported during the follow up. Conclusion. With regard to pain, Yttrium-90 radiosynovectomy associated to TH provided better results than Samarium-153-particulate hydroxyapatite radiosynovectomy associated to TH as well as a better response than chemical synovectomy with TH alone. / TEDE / BV UNIFESP: Teses e dissertações

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