Safety and efficacy of cryoablation of soft-tissue tumours: a systematic review

OBJECTIVES: To assess the safety and efficacy of percutaneous cryoablation (CA) of soft-tissue tumours [desmoid tumours (DTs), vascular malformations (VMs), and abdominal wall endometriosis (AWE)]. METHODS: This systematic review of studies published before January 2024 encompassed a detailed analysis of CA techniques and technical aspects for the treatment of soft-tissue tumours. Data concerning CA efficacy, complication rates, and other relevant metrics were extracted and included for analysis. RESULTS: The analysis included 27 studies totalling 554 CA procedures. For DT (13 studies, 393 sessions), CA showed an average pain reduction of 79 ± 17% (range: 57-100) and a lesion volume decrease of 71.5 ± 9.8% (range: 44-97). VM (4 studies, 58 sessions) had a 100% technical success rate and an average pain reduction of 72 ± 25% (range: 63-85). The average pain reduction for AWE (6 studies, 103 sessions) was 82 ± 13% (range: 62-100). Overall, the complication rate for CA was low, with minor adverse events (AEs) in about 20% of patients and major events in less than 5% of patients. CONCLUSIONS: Showing substantial efficacy in pain reduction and lesion volume decrease, as well as low incidence of severe AE, CA presents as a highly effective and safe alternative for the treatment of soft-tissue tumours. ADVANCES IN KNOWLEDGE: CA is effective and safe in treating soft-tissue tumours, particularly DT, VM, and AWE.