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Review
. 2023 Jun 21;57(2):141-149.
doi: 10.2478/raon-2023-0029. eCollection 2023 Jun 1.

Bleomycin electrosclerotherapy (BEST) for the treatment of vascular malformations. An International Network for Sharing Practices on Electrochemotherapy (InspECT) study group report

Affiliations
Review

Bleomycin electrosclerotherapy (BEST) for the treatment of vascular malformations. An International Network for Sharing Practices on Electrochemotherapy (InspECT) study group report

Tobian Muir et al. Radiol Oncol. .

Abstract

Background: Biomedical applications of electroporation are expanding out of the field of oncology into vaccination, treatment of arrhythmias and now in the treatment of vascular malformations. Bleomycin is a widely used sclerosing agent in the treatment of various vascular malformations. The application of electric pulses in addition to bleomycin enhances the effectiveness of the drug, as demonstrated by electrochemotherapy, which utilizes bleomycin in the treatment of tumors. The same principle is used in bleomycin electrosclerotherapy (BEST). The approach seems to be effective in the treatment of low-flow (venous and lymphatic) and, potentially, even high-flow (arteriovenous) malformations. Although there are only a few published reports to date, the surgical community is interested, and an increasing number of centers are applying BEST in the treatment of vascular malformations. Within the International Network for Sharing Practices on Electrochemotherapy (InspECT) consortium, a dedicated working group has been constituted to develop standard operating procedures for BEST and foster clinical trials.

Conclusions: By treatment standardization and successful completion of clinical trials demonstrating the effectiveness and safety of the approach, higher quality data and better clinical outcomes may be achieved.

Keywords: bleomycin; bleomycin electrosclerotherapy; electrochemotherapy; vascular malformations.

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Figures

FIGURE 1.
FIGURE 1.
Treatment of vascularized melanoma metastasis by electrochemotherapy. (A) Highly vascularized tumor before treatment. (B) Bleeding due to electrode insertion after application of electric pulses to the tumor. (C) Bleeding stopped immediately after electric pulse application.
FIGURE 2.
FIGURE 2.
Patient treated by BEST. Axial T2-weighted, fat-saturated MRI with hyperintense (arrow) gluteal venous malformation before treatment (A). Axial T2-weighted, fat-saturated MRI of the same region 4 months after treatment. The main part of the venous malformation is occluded (B). Photography before (C) and after the treatment (D).

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