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

PLoS One. 2024 Mar 29;19(3):e0297975. doi: 10.1371/journal.pone.0297975. eCollection 2024.

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.

Publication types

  • Clinical Study

MeSH terms

  • Adolescent
  • Angioplasty, Balloon* / adverse effects
  • Child
  • Constriction, Pathologic / complications
  • Hospitals, Public
  • Humans
  • Kidney
  • Kidney Transplantation* / adverse effects
  • Renal Artery
  • Renal Artery Obstruction* / etiology
  • Renal Artery Obstruction* / surgery
  • Retrospective Studies
  • Stents / adverse effects
  • Treatment Outcome

Associated data

  • ClinicalTrials.gov/NCT04225338

Grants and funding

The authors received no specific funding for this work.