JOURNAL ARTICLE
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Effects of superselective embolization for renal vascular injuries on renal parenchyma and function.

AIM: Our objective was to evaluate the outcome of superselective embolization used for treatment of renal vascular injuries on renal parenchyma and renal function.

MATERIALS AND METHODS: Between January 1999 and December 2001, 6 consecutive patients (five males, one female, mean age 45 years) underwent embolization to treat bleeding from renal vascular injuries, resulting from iatrogenic interventions (4) and blunt abdominal trauma (2). Five patients had increased serum creatinine. Angiography depicted a pseudoaneurysm (PA) in three, PA with arteriovenous fistula (AVF) in one, and active extravasation in two patients. Superselective catheterization was achieved using a 5-F catheter in three, and coaxial microcatheter in the remaining three cases. All lesions were successfully embolized with 0.035" or 0.018" coils.

RESULTS: Bleeding was ceased in all patients and did not recur. Mean post-embolization parenchymal ischemic area was 11.7% (range: 0-30%). Imaging follow-up (mean: 12 months, range: 5-23) showed that mean parenchymal infarcted area was 6% (range: 0-15%). Serum creatinine level was normal in all patients one week after the procedure and at the latest follow-up.

CONCLUSION: Superselective embolization resulted in permanent cessation of bleeding. Serious parenchymal infarction was prevented and serum creatinine level returned to the pre-bleeding values. Embolization should be considered as the treatment of choice in this patient population.

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