Abstract
Background
Peritoneal dialysis (PD) catheter malposition is one of the complications of renal replacement therapy. This study aimed to determine the preoperative factors that cause PD catheter malposition.
Methods
The prospective cohort study included patients who underwent PD catheter insertion surgery and had preoperative and postoperative computed tomography scans. We compared preoperative and intraoperative factors between the lower depth catheter group (group L) and upper depth catheter group (group U), and preoperative and intraoperative factors between the posterior catheter group (group P) and anterior catheter group (group A). In addition, PD catheter obstruction requiring surgical intervention in each group was followed up for 1 year.
Results
A total of 150 patients were categorized into groups L (n = 77) and U (n = 73), or groups P (n = 107) and A (n = 43). Body mass index (BMI; P = 0.02), subcutaneous fat area (P = 0.02), and rate of previous abdominal surgery (P = 0.01) were significantly lower in group L than in group U. In terms of anterior catheter position, females had more-anterior catheter positions. The time to PD catheter obstruction requiring surgical intervention (P = 0.03) was significantly lower in group U than in group L.
Conclusions
High BMI, high subcutaneous fat area, high subcutaneous fat thickness, and previous abdominal surgery were identified as preoperative factors that cause the PD catheter to have an upper depth. Female sex was a preoperative influencing factor for the anterior PD catheter position.
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Acknowledgements
We would like to acknowledge PD nurses Yukari Kikuchi and Sanae Matsuura, Nurse Practitioner Masafumi Satake, radiological technologist Kentaro Takahashi, and all PD nurses and radiology technologists at Tohoku Medical and Pharmaceutical University Hospital for their help in data collection and image creation.
Funding
This work was supported by JSPS/MEXT KAKENHI Grant Nos. 19H03677 and 19K21596.
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Contributions
KH and GA conceptualized and designed the study. KH, GA, RT, TS, YM, TF, TK, AE, TS, SN, IOY, HN, JT, and TM participated in the patients’ medical treatment. KH, GA, SY, RT, TS, YM, TF, TK, AE, and TS collected data; and GA performed the statistical analysis. KH drafted the first version of the manuscript, and GA, TH, and TM helped draft the revised manuscript. All authors have read and approved this submission.
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Conflict of interest
The Division of Integrative Renal Replacement Therapy (T.H. and T.M.) is financially supported by Chugai Pharmaceutical Co., Ltd., Terumo Corporation, and JMS Co., Ltd. All other authors have no conflicts of interest.
Ethical approval
This study was conducted in accordance with the principles of the latest version of the Declaration of Helsinki. This prospective cohort study was approved by the ethics committee of Tohoku Medical and Pharmaceutical University Hospital, Japan (Protocol 2016–2-008).
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Written informed consent was obtained from all the patients.
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Hoshino, K., Anan, G., Hirose, T. et al. Impact of preoperative factors on catheter position in peritoneal dialysis: a prospective cohort study. Clin Exp Nephrol 26, 835–841 (2022). https://doi.org/10.1007/s10157-022-02214-z
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DOI: https://doi.org/10.1007/s10157-022-02214-z