Long-term results of preventive embolization of renal angiomyolipomas: evaluation of predictive factors of volume decrease.

Details

Serval ID
serval:BIB_D19F70093D0A
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Long-term results of preventive embolization of renal angiomyolipomas: evaluation of predictive factors of volume decrease.
Journal
European radiology
Author(s)
Hocquelet A., Cornelis F., Le Bras Y., Meyer M., Tricaud E., Lasserre A.S., Ferrière J.M., Robert G., Grenier N.
ISSN
1432-1084 (Electronic)
ISSN-L
0938-7994
Publication state
Published
Issued date
08/2014
Peer-reviewed
Oui
Volume
24
Number
8
Pages
1785-1793
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Abstract
To evaluate the efficacy of selective arterial embolization (SAE) of angiomyolipomas based on the percentage volume reduction after embolization and to identify predictive factors of volume decrease.
Patients receiving prophylactic SAE of renal angiomyolipomas were included retrospectively over 3 years. The volume change after SAE and haemorrhagic or surgical events were recorded. Initial tumour volume, percentage tumour fat content, mean tumour density, embolic agent used, number of angiomyolipomas and tuberous sclerosis disease were evaluated as predictive factors of volume decrease.
A total of 19 patients with 39 angiomyolipomas were included with median follow-up of 28 months (interquartile range 21-37 months). All treatments were technically successful (92% primary and 8% secondary). No distal bleeding or any increase in size or surgical nephrectomy after SAE was recorded. Mean volume reduction was 72% (±24%). Volumes before SAE (R(2) = 0.276; p = 0.001), percentage fat content (R(2) = 0.612; p < 0.0001) and mean angiomyolipoma density (R(2) = 0.536; p < 0.0001) were identified as predictive factors of volume decrease. In multivariate regression, only percentage fat content influenced volume decreases.
SAE is an efficient treatment for angiomyolipoma devascularisation and volume reduction. A significant reduction of volume is modulated by the initial volume and tissue composition of the tumour.
• Selective arterial embolization is effective for angiomyolipoma devascularisation and volume reduction • Volume reduction depends of initial volume and tissue composition of the tumour • Selective arterial embolization is a low radiation treatment.

Keywords
Adult, Aged, Angiomyolipoma/diagnosis, Angiomyolipoma/therapy, Antineoplastic Agents/therapeutic use, Chemoembolization, Therapeutic/methods, Diagnosis, Differential, Female, Follow-Up Studies, Humans, Kidney Neoplasms/diagnosis, Kidney Neoplasms/therapy, Magnetic Resonance Imaging/methods, Male, Middle Aged, Retrospective Studies, Time Factors, Tomography, X-Ray Computed/methods, Treatment Outcome, Tumor Burden
Pubmed
Web of science
Create date
25/10/2017 13:21
Last modification date
20/08/2019 15:51
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