Journal of Korean Society of Medical Ultrasound 2003;22(4): 209-212.
Efficacy of Ultrasonography-Guided Renal Biopsy for the Evaluation of Renal Dysfunction Following Renal Transplantation.
Young Jae Kim, Chul Soon Choi, Seon Jeong Min, Gyung Kyu Lee, Eil Seong Lee, Ik Won Kang, Sang Hoon Bae
Department of Radiology, Hallym University College of Medicine, Korea.
  Published online: December 1, 2003.
ABSTRACT
PURPOSE: To evaluate the usefulness and complications of renal biopsy under ultrasonography-guidance in renal dysfunction after renal transplantation. MATERIALS AND METHODS: Ultrasonography-guided renal biopsy was done in 47 patients with the transplanted kidney. The subjects consisted of 30 males and 17 females, age ranged from 16 to 66 years (average age = 38 years). Biopsies were done once in 27 patients, twice in 17 patients, three times in 3 patients, a total of 70 biopsies. The success rate of renal biopsy for the accurate pathologic diagnosis and the incidence and types of complications following biopsy were evaluated. RESULTS: The success rate of renal biopsy for the accurate pathologic diagnosis was 96%(67/70). Pathologic diagnosis included 27 cases of acute rejection(39%), 8 cases of acute tubular necrosis(11%), 4 cases of acute rejection and acute tubular necrosis(6%), 4 cases of cyclosporin toxicity(6%), 4 cases of primary disease recurrence(6%), 4 cases of infection(6%) and others. Complications after renal biopsy included 15 cases of microscopic hematuria(21%), 1 case of gross hematuria with spontaneous cessation and 1 case of life threatening hemorrhage. CONCLUSION: Ultrasonography-guided renal biopsy is a safe and effective diagnostic method for the evaluation of renal dysfunction following renal transplantation.
Keywords: Kidney, transplantation; Kidney, function; Kidney, US; Ultrasound (US), guidance
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