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KMID : 0359919950140030399
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Korean Journal of Nephrology
1995 Volume.14 No. 3 p.399 ~ p.404
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Superselective Embolization in the treatment of Arteriovenous Fistula Following Percutaneous Renal Biopsies
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Abstract
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Arteriovenous fistulae are common complications os percutaneous renal biopsy Such lesions usually are clinically silent, and more than 95% resolve spontaneously within two years. In rare instances. Surgical correction of the fistula is required
because
of severe hypertension, persistent hematuria, congestive heart failure, or hydronephrosis. We present three cases of complicated arteriovenous fistulae following percultaneous renal biopsy, who were treated successfully with superselective
embolization.
A 3F coaxial catheter and steerable guidewire were introduced through the 5F cobra catheter and advanced into the actual site of extravasation. The tip of the guidewire was placed as possible as close to the vascular lesion. Then embolization was
perfor
med. All patients had gross hematuria at the time of angiographic evalution. False aneurysms with anteriovenous fistula were present in two patients, and isolated arteriovenous fistula in one. Gel foam particles were used for embolization of
false
aneurysm/arteriovenous fistula in two patients. Isolated large arteriovenous fistula in a patient was treated with platinum micro-coil. Arteriovenous fistula occlusion with hemostasis was achieved successfully in all cases and no complications
were
encountered. Our experiences suggests that superselective embolization with coaxial catheter techniques is an effective method of treating complicated arteriovenous fistula after percutaneous renal biopsy without surgical correction.
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KEYWORD
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