Department of Diagnostic Radiology, Korea University College of Medicine
ABSTRACT
PURPOSE : To assess ultrasonographic findings and clinical significance after renal biopsy. MATERIAL & METHODS: 174 cases of post-biopsy sonography were studied retro-spectively. We classified post-biopsy hematoma on thebasis of their size as small (thickness less than 1 cm, length less than 3cm), medium (thickeness less than 1cm,length greater than 3 cm), large (thickness greater than 1 cm, length greater than 3 cm). We also comparedbleeding parameters (prothrombin time, partial thromboplastin time) and renal function in both cases which hadhematoma or not. RESULTS : Total 33 hematomas were found (19%). Small hematoma was observed in 14 cases, mediumhematoma in 16 cases, large hematoma in 3 cases. Severe complications requiing prompt therapy occured in 1 case(0.6%). In 6 cases hematocrit fell by more than 4%, all of these hematomas were observed on US. CONCLUSION :Severe complications after sonoguided renal biopsy were rare. There was poor correlation between prebiopsybleeding parameter, renal function and post-biopsy hematomas. And sonography is considered as adequate method forfollow up of post-biopsy hematoma.
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