Related Experiment Video
Updated: May 15, 2025
A Retrograde Implantation Approach for Peritoneal Dialysis Catheter Placement in Mice
Published on: July 20, 2022
Predictors of Nephrostomy Catheter Dislodgement: Insights from a Retrospective Analysis
Ali Dablan1, Zöhre Okur2, Mehmet Cingöz2
1Department of Radiology, Basaksehir Cam and Sakura City Hospital, 34488, Istanbul, Turkey. alidablan@hotmail.com.
Purpose:
To identify the anatomical and technical factors associated with unintended nephrostomy catheter dislodgement (NCD).
Materials And Methods:
A retrospective review of 742 percutaneous nephrostomy (PCN) procedures carried out between June 2020 and June 2024 was conducted. Thirty-eight patients with spontaneous NCD were assigned to the dislodgement group, and 38 matched controls were selected using propensity score matching.. Key measurements included cortex-to-skin distance, paravertebral muscle area, psoas muscle area, subcutaneous fat thickness, and renal parenchymal thickness.
Results:
Patients with NCD were similar in age and sex. No significant differences were observed in subcutaneous fat thickness, muscle thickness, or renal parenchymal thickness between the groups. However, cortex-to-skin distance was significantly shorter in the NCD group (p = 0.001). ROC analysis identified an optimal threshold of 46.65 mm for cortex-to-skin distance, with a sensitivity of 92.1%, specificity of 39.5%, and a positive predictive value of 60.3% (AUC = 0.67).
Conclusion:
Shorter cortex-to-skin distance is a key predictor of NCD. Patients with shorter cortex-to-skin distances, may benefit from closer monitoring and targeted preventive measures to reduce the risk of dislodgement.
