RESUMOIntrodução: a estenose de artéria renal transplantada (EART) é a complicação vascular mais frequente do transplante renal. O Objetivo: avaliar o sucesso clínico, a patência primária e secundária da ATP, bem como a sobrevida dos pacientes após o tratamento endovascular. Métodos: análise retrospectiva dos pacientes com EART tratados por ATP no período de janeiro de 2008 a dezembro de 2016 no Hospital Universitário Walter Cantídio. Resultados: 28 pacientes foram tratados por EART através do método endovascular. A pressão diastólica reduziu de 91,62 mmHg para 76 mmHg, em média, após 6 meses do tratamento (p<0,05). Observou-se uma redução nos níveis de creatinina após 3, 6 e 24 meses da angioplastia (p=0,005). As taxas de patência primária em 1, 3, 6, 12 e 24 meses foram de 89,3% +/-5,8%, 85,6% +/-6,7%, 81,8% +/-7,4%, 78,1% +/-7,9% e 68,9% +/-9,3%, respectivamente. A taxa de patência secundária foi de 100%. A taxa de sobrevida em 1, 3, 6, 12 e 24 meses foi de 96,4% +/-3,5%, 96,4% +/-3,5%, 92,6% +/-5,1%, 92,6% +/-5,1% e 83,8% +/-7,5%, respectivamente. Conclusão: o tratamento endovascular de EART apresenta boas taxas de patências primária e secundária e é efetivo em restaurar e manter a função renal em dois anos.Palavras-chave: Transplante de rim. Obstrução da artéria renal. Angioplastia. Sobrevida. ABSTRACTIntroduction: Transplant renal artery stenosis (TRAS) is the most frequent vascular complication of renal transplantation. The diagnosis is made through arteriography and the treatment consists of percutaneous transluminal angioplasty (PTA). Objective: to evaluate the clinical success, the primary and secondary patency of PTA, as well as the survival of patients after endovascular treatment. Methods: Retrospective analysis of patients with TRAS treated by PTA from January 2008 to December 2016 at Hospital Universitário Walter Cantídio. Results: 28 patients were treated by TRAS using the endovascular method. Diastolic pressure decreased from 91.62 mmHg to 76 mmHg, on average, after 6 months of treatment (p <0.05). There was a decrease in creatinine levels after 3, 6 and 24 months of angioplasty (p = 0.005). The primary patency rates at 1, 3, 6, 12 and 24 months were 89.3% +/-5.8%, 85.6% +/-6.7%, 81.8% +/-7 , 4%, 78.1% +/-7.9% and 68.9% +/-9.3%, respectively. The secondary patency rate was 100%. The survival rate at 1, 3, 6, 12 and 24 months was 96.4% +/-3.5%, 96.4% +/-3.5%, 92.6% +/-5, 1%, 92.6% +/-5.1% and 83.8% +/-7.5%, respectively. Conclusion: Endovascular treatment of TRAS presents good rates of primary and secondary patency and is effective in restoring and maintaining renal function in two years.
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