Factors Affecting Success of the Reinsertion of Nephrostomy Catheters through the Original Tract

Abstract

Objective: To investigate the success rate and the factors affecting the success of percutaneous nephrostomy catheter reinsertion using the existing percutaneous tract. Materials and methods: Retrospective analysis was performed in 47 adult patients who underwent percutaneous nephrostomy catheter reinsertion through existing tract between December 2020 and December 2021. We reviewed the success rate of the reinsertion, the relationship between that rate, the dislodged catheter size, the indwelling time (time between placement and dislodgement) and the timeline that the original tract can be used for reinsertion procedure. Results: The overall success rate for reinsertion through existing tract was 70.21%. Success rate of reinsertion was associated with longer catheter indwelling times compared to patients who failed reinsertion (82.27 vs 34.21 days, p < 0.001) and shorter reinsertion times compared to patients who failed reinsertion (13.21 vs 65.86 hours, p < 0.001). Receiver Operating Characteristic (ROC) curve analysis demonstrated that the cut-off time for reinsertion was 33 hours, with 84.80 % sensitivity and 85.70 % specificity. Conclusions: Reinsertion of the percutaneous nephrostomy catheters using the existing tract has many advantages over the new tract intervention. Reinsertion can be performed successfully after the first 24-36 hours of dislodgement. Success rates vary based on indwelling and reinsertion times.

Keywords

• percutaneous nephrostomy
• nephrostomy reinsertion
• cutaneous tract
• perkütan nefrostomi
• nefrostominin yeniden takılması
• kütanöz yolak