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

Background: This monocentric, randomized controlled trial aims to compare the outcomes of kidney transplant recipients with magnetic double-J (DJ) stents versus conventional DJ stents. Specifically, we assessed stent-related symptoms, procedural difficulties, pain and duration of removal, and associated costs.

Methods: A total of 30 patients were randomly assigned to receive either a magnetic DJ (mDJ) stent or a conventional, standard DJ (sDJ) stent during kidney transplantation using the Lich-Gregoir technique. Quality of life was evaluated with the USSQ 7-10 d postoperation. sDJs stents were removed cystoscopically by a urologist while mDJ stents were removed bedside by a transplant surgeon. The duration of removal and procedure-associated pain were documented. Questionnaires for physicians and patients were used to assess peri-interventional experience and issues. Additionally, costs associated with the removal of both stents were analyzed.

Results: Quality of life showed no differences between the groups. Stent removal was successful in all cases, with no differences in duration of removal ( = 0.24) or major issues. Patients reported comparable pain levels during the removal of mDJs ( = 0.55) and higher satisfaction, although this was not statistically significant ( = 0.27). Cost analysis revealed a reduction of approximately €172 with the use of mDJ.

Conclusions: The use of mDJ stents in kidney transplantation is a safe alternative associated with comparable pain during removal. Additionally, it offers cost savings and reduces the logistical burden for both patients and hospitals.