Cryo-preserved porcine kidneys are feasible for teaching and training renal biopsy: “the bento kidney”
The use of patients as the primary teaching modality for learning procedures is being questioned. While there have been advancements in the technology used for performing needle biopsies in both native and transplanted kidneys, there has been little advancement in teaching and training tools. We have developed a portable ex-vivo kidney, the Bento Kidney, using cryo-preserved porcine kidneys for teaching this procedure.
The kidney is thawed, perfused by a pump, covered with skin for realistic haptic feedback, and then used with existing biopsy technology to teach the technique.
Thirty porcine kidneys were used in this pilot research, and nine were shipped to physicians at a distant facility. Renal biopsy was then performed using a core biopsy needle and ultrasound guidance. There was some leakage of fluid from all kidneys noted. All trainees felt that the model was realistic, and judged at a mean score of 8.7 (SD 0.8) on a scale of 1 (not useful) to 10 (very useful).
This feasibility study demonstrates that cryo-preserved porcine kidneys can be successfully used to teach and train renal biopsy techniques, and provides haptic feedback as well as realistic real-time ultrasound images. Further large scale studies are needed to demonstrate value from the educational point of view for nephrology and transplantation.
- Feneberg, F, Schaefer, F, Zieger, B, Waldherr, R, Mehles, O, Scharer, K (1998) Percutaneous Renal Biopsy in Children: A 27-Year Experience. Nephron 79: pp. 438-446 CrossRef
- Petrone, H, Frapiccini, MG, Skare, R, Baran, M (2011) Outpatient Renal Needle Biopsy of the Transplanted Kedeny: Safty Profile. Transplant Proc 43: pp. 3383-3384 CrossRef
- Bass, BL (2007) Fundamental changes in general surgery residency training. Am Surg 73: pp. 109-113
- Osborne, CA, Bartges, JW, Polzin, DJ, Lulich, JP, Johnston, GR, Cox, V (1996) Percutaneous needle biopsy of the kidney. Indications, applications, technique and complications. Vet Clin N Am Small Anim Pract 26: pp. 1461-1504
- Korbet, SM (2002) Percutaneous renal biopsy. Semin Nephrol 22: pp. 254-267 CrossRef
- Christensen, J, Lindequist, S, Knudsen, DU, Pedersen, RS (1995) Ultrasound guided renal biopsy with biopsy gun technique—efficacy and complications. Acta Radiol 36: pp. 276-279 CrossRef
- Kim, D, Kim, H, Shin, G, Ku, S, Ma, K, Shin, S, Gi, H, Lee, E, Yim, H (1998) A randomized prospective comparative study of manual and automatic renal biopsies. Am J Kidney Dis 32: pp. 426-431 CrossRef
- Cryo-preserved porcine kidneys are feasible for teaching and training renal biopsy: “the bento kidney”
- Open Access
- Available under Open Access This content is freely available online to anyone, anywhere at any time.
- Online Date
- May 2012
- Online ISSN
- BioMed Central
- Additional Links
- Author Affiliations
- 1. Center for Experimental Medicine, Jichi Medical University, Tochigi, Japan
- 4. Department of Pediatrics, Wakayama Medical University, Wakayama, Japan
- 2. Department of Surgery, Jichi Medical University, Tochigi, Japan
- 3. Medical Simulation Center, Jichi Medical University, Tochigi, Japan