Comparison of Magnetic and Conventional Double-J Stent Following Kidney Transplantation: A Randomized Controlled Trial.

Transplantation Direct 2025; 11(4): e1773.

Aims
This study aimed to compare magnetic double-J (DJ) stents with that of standard DJ stents in kidney transplant recipients post-transplantation.

Interventions
Participants were randomly assigned to receive either the magnetic DJ stent or the conventional, standard DJ stent.

Participants
30 kidney transplant recipients.

Outcomes
The primary outcome was quality of life with the DJ sent in situ. The secondary outcomes were patients’ peri-interventional experience, intensity of pain and satisfaction with the procedure, following DJ removal.

Follow-up
7-10 days post-operation.

CET Conclusions
This is a well-written report of a small, randomised trial comparing a magnetic double-J stent with standard double-J ureteric stent for renal transplantation. Thirty patients were randomised and there does not appear to be a power calculation, nor a single, easily identifiable primary outcome. The stents were removed later in both arms than would normally be considered in this centre (24-28 days instead of 10-14). Stent removal was successful in all cases, whether by standard cystoscopy or magnetic catheterisation and there was no difference in urinary symptoms or discomfort on stent removal. Stent removal took 3-4 minutes for both groups. It is worth noting that the patients in this study were relatively young, and this may make catheterisation more straightforward. In this small study, there were no major safety concerns, but there was a clear reduction in overall cost using magnetic stents, which can be removed without cystoscopy and associated equipment costs.

Jadad score
1

Data analysis
Per protocol analysis

Allocation concealment
No

Trial registration
DRKS00015038

Funding source
No funding received