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Erschienen in:
09.06.2021 | Short Communication
Percutaneous Cryoablation of Lower Limb Soft-Tissue Venous Malformations: Preliminary Results of Long-Term Efficacy
Erschienen in: CardioVascular and Interventional Radiology | Ausgabe 9/2021
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Purpose
To retrospectively evaluate long-term efficacy of percutaneous cryoablation for lower limb soft-tissue venous malformations.
Materials and Methods
Nine patients (mean age, 36.6 years) with lower limb soft-tissue venous malformations were included. Cryoablation was performed percutaneously using an argon-based system. Adverse events (AE) using the Common Terminology Criteria for AEs version 4.0 were evaluated. The visual analog scale (VAS) scores and lesion volumes measured on magnetic resonance imaging were also evaluated at 12 months and 5–6 years.
Results
Technical success (i.e., complete coverage of the lesion by an iceball) was achieved in eight of the nine patients. All patients developed a total of 14 grade 1 or 2 adverse events. The mean (± standard deviation) VAS score was 6.0 (± 1.7) before therapy, whereas it was 0.14 (± 0.27) at 12 months and 0.97 (± 1.3) at 5–6 years (58–78 months). Complete pain relief was obtained in 6 and 5 patients at 12 months and 5–6 years, respectively. The median lesion volume was 2.49 mL before therapy, whereas it was 0.26 mL at 12 months and 0.35 mL at 5–6 years.
Conclusion
Percutaneous cryoablation of lower limb soft-tissue venous malformations achieved considerable pain relief and lesion shrinkage for 5–6 years in this small preliminary study.
Level of Evidence
Level 4, Case Series.