Retrospective analysis of percutaneous intervention of the renal artery in transplanted kidneys in children and adolescents at a tertiary public hospital

Author:

Faccinetto Ana Carolina BusoORCID,Santos Gustavo Rocha Feitosa,Taguchi Juliana Cristina,Orellana Henry Campos,Galhardo Attílio,Kanhouche Gabriel,Barteczko Manoela Linhares Machado,Tedesco Júnior Hélio,Bravo-Valenzuela Nathalie Jeanne Magioli,Moises Valdir Ambrósio,Pestana José Osmar MedinaORCID,Silva Célia Maria Camelo,Barbosa Adriano Henrique Pereira

Abstract

Background This study evaluated the long-term effects of percutaneous intervention in children and adolescents with transplant renal artery stenosis (TRAS). Methods Twenty patients had significant stenosis (>50%) and underwent percutaneous transluminal angioplasty (PTA/stenting) (TRAS group-intervention); 14 TNS (non-significant group -control) patients did not have significant stenosis (≤50%) and were treated clinically. The combined primary endpoints were death from all causes and late graft failure. The secondary endpoints were serum creatinine (SCr), systolic blood pressure (SBP), and diastolic blood pressure (DBP). Results No statistically significant difference was found between TRAS—Intervention(N = 20) and TNS groups—Control (N = 14) for these clinical parameters: deaths, 1 (5.0%) vs. 0 (0.0%) (p = 1.000) and graft loss, 4 (20.0%) vs. 2 (14.3%) (p = 1.000). For the secondary endpoints, after 1 month and 1 year the values of SCr, SBP, and DBP were similar between the two groups but not statistically significant. Discussion In the TRAS group (intervention), the stent implantation was beneficial for treating refractory hypertension and reducing blood pressure (BP) in children and adolescents. Despite the outcomes being similar in the two groups, it can be inferred that the patients in the TRAS group (intervention) would have had a worse outcome without the percutaneous intervention. Conclusion TRAS treatment with stenting can be considered for children and adolescents. Because the sample in the present study comprised of only a specific population, further studies are needed for generalization. Trial registration The trial was registered at clinictrials.gov with trial registration number NCT04225338.

Publisher

Public Library of Science (PLoS)

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