Embolization of Congenital Renal Arteriovenous Malformations Using Ethanol and Coil Depending on Angiographic Types.

Abstract

PURPOSE:

To evaluate effectiveness and safety of embolization of congenital renal arteriovenous malformations (AVMs) using ethanol and/or coil according to angiographic type.

MATERIALS AND METHODS:

Between August 2010 and October 2015, 11 patients (13 sessions; 10 women and 1 man; mean age, 50.8 y) with congenital renal AVMs were treated using ethanol and/or coils via 2 approaches (transarterial access or direct puncture). Demographics, clinical findings, diagnostic modalities, angiographic types, technical and clinical success rates, and complications were reviewed. Renal AVMs were classified into 3 angiographic types, and treatment was based on this classification.

RESULTS:

Technical success rate was 91% (10/11), and clinical success rate was 100% (11/11). Of patients, 7 had type III AVMs, 3 had type I AVMs, and 1 had type II AVM. Embolic agents were ethanol in 5 patients, coils with ethanol in 3 patients, and coils in 3 patients. Of the 8 patients treated with ethanol, 6 had infarcted renal areas of 3.5%-30% (mean, 14.6%). After a mean follow-up period of 16.3 months, there was no evidence of recurrent AVMs on imaging or laboratory studies.

CONCLUSIONS:

Embolization of congenital renal AVMs via transarterial or direct percutaneous approaches using ethanol and/or coils based on a simple angiographic classification was safe and effective and elicited good outcomes. Most of the patients with congenital renal AVMs were women.

• Authors: Jin Ho Hwang, Young Soo Do, Kwang Bo Park, Hwan Hoon Chung, Hong Suk Park, Dongho Hyun
• Journal: Journal of vascular and interventional radiology : JVIR (J Vasc Interv Radiol) Vol. 28 Issue 1 Pg. 64-70 (Jan 2017) ISSN: 1535-7732 [Electronic] United States
• PMID: 27865576 (Publication Type: Journal Article)
• Copyright: Copyright © 2016 SIR. Published by Elsevier Inc. All rights reserved.

Chemical References

• Ethanol

Topics

• Adult
• Aged
• Arteriovenous Malformations (classification, diagnostic imaging, therapy)
• Computed Tomography Angiography
• Embolization, Therapeutic (adverse effects, instrumentation, methods)
• Equipment Design
• Ethanol (administration & dosage)
• Female
• Humans
• Male
• Middle Aged
• Predictive Value of Tests
• Punctures
• Radiography, Interventional
• Renal Artery (abnormalities, diagnostic imaging)
• Renal Veins (abnormalities, diagnostic imaging)
• Retrospective Studies
• Treatment Outcome