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Sunday, April 9, 2017

Case 90: Answers and Summary

Which of the following is a risk factor for bleeding post kidney biopsy?


This is a tough question. Traditionally, many have thought that ASA is a known risk factor for bleeding post kidney biopsy. A recent large study states otherwise. In a large observational study published in CKJ, >2000 patients were reviewed. The incidence of major bleeding was 2.2%.  The risk factors as assessed by statistics were need for emergent biopsy as oppose to elective renal biopsy. No major risk was noted with ASA use and BMI.  There is data from prior studies suggesting no major risk with amyloidosis unless there is a factor XII deficiency associated with the amyloidosis. Emergent need for a kidney biopsy seems to be the major risk factor more than the others. 


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