Use of Microballoon Catheter in Transarterial Ethanol Embolization of Renal Angiomyolipoma: A Retrospective Comparative Study with Historical Control?

Overview

Journal Interv Radiol (Higashimatsuyama)

Date 2022 Aug 1

PMID 35911873

Authors

Junichi Taniguchi

Haruyuki Takaki

Yuichi Sugino

Nahomi Yoshimura

Ryo Kunimoto

Hiroyuki Yokoyama

Taiki Moriyama

Naoya Kinota

Yoshie Inao

Mitsunari Maruyama

Atsushi Ogasawara

Hiroshi Kodama

Yasukazu Kako

Kaoru Kobayashi

Koichiro Yamakado

Affiliations

Soon will be listed here.

Abstract

Purpose: To clarify the utility of microballoon catheter in renal arterial ethanol embolization of renal angiomyolipoma (AML).

Material And Methods: A total of 20 patients (15 women, 5 men) with median age of 45 years (39-60 years) underwent embolization to treat 22 AMLs. A mixture of ethanol and iodized oil was injected into the feeding arteries of 13 tumors using balloon occlusion (the balloon embolization group) with a microballoon catheter and 9 tumors without using balloon occlusion (the non-balloon embolization group). Changes in the maximum tumor diameter, tumor volume, and adverse events were evaluated.

Result: The median baseline maximum tumor diameters and volumes were 6.3 cm and 61.4 cm in the balloon embolization group, and 4.6 cm and 40.1 cm in the non-balloon embolization group, respectively. Tumor enhancement disappeared on postembolization angiography in all cases. All tumors shrunk after embolization. There were no statistically significant differences in the percent decrease in the maximum tumor diameter and volume at 10-12 month between balloon occlusion group (31.5% and 67.9%) and control group (34.8% and 62.6%). Fever was significantly more frequent when balloon occlusion was used: 38% vs. 0% ( = 0.03). No major complication was observed in either patient group.

Conclusions: Balloon occlusion may not affect tumor shrinkage when embolizing AMLs with a mixture of ethanol and lipiodol.

Citing Articles

Comparison of Renal Damage Following Renal Artery Embolization with Three Different Embolic Mixtures in Swine.

Tanaka R, Sonomura T, Koike M, Sato H, Shimono R, Kumamoto A Interv Radiol (Higashimatsuyama). 2023; 8(3):154-160.

PMID: 38020457 PMC: 10681758. DOI: 10.22575/interventionalradiology.2021-0031.

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