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"Although the tip of the dialysis catheter was more distal than the classic femoral approach, renal replacement therapy was performed without problems" Morishige et al (2022).
Hemodialysis catheter insertion into femoral vein

Abstract:

Cardiac surgery-associated acute kidney injury may require postoperative renal replacement therapy. Although the right internal jugular vein and femoral veins are generally the preferred insertion sites for the hemodialysis catheter for continuous renal replacement therapy, the presence of other indwelling catheters or prior thrombotic events from previous catheters may preclude use of these sites. We present a case in which the hemodialysis catheter was inserted into the distal femoral vein using point-of-care ultrasound in a patient with multiple catheter insertions after coronary artery bypass grafting. Although the tip of the dialysis catheter was more distal than the classic femoral approach, renal replacement therapy was performed without problems. Moreover, it was easier for the nurses to keep the insertion site clean and to change the patient’s position.

Reference:

Morishige S, Yamaguchi Y, Nakajima K, Tsuboi S, Sugawara Y, Hayami H, Tobias JD, Inagawa G. Ultrasound-Guided Placement of a Hemodialysis Catheter into the Distal Femoral Vein in a Patient with Multiple Catheters: A Case Report. Int Med Case Rep J. 2022 Apr 19;15:209-212. doi: 10.2147/IMCRJ.S359258. PMID: 35469269; PMCID: PMC9034840.