Incidence and impact factors of adverse events in patients with colorectal liver metastases treated with ultrasound-guided percutaneous microwave ablation / 中国介入影像与治疗学

ABSTRACT

Objective: To investigate the incidence and impact factors of adverse events (AE) in ultrasound-guided percutaneous microwave ablation (MWA) for treatment of colorectal liver metastases (CRLM). Methods: Clinical data of 427 CRLM patients who underwent ultrasound-guided percutaneous MWA were retrospectively analyzed. Totally 614 MWA sessions were performed and 1 334 lesions were ablated. The incidence and impact factors of AE were analyzed. Results: The overall incidence of AE was 4.89% (30/614), and no ablation-related death occurred. The risk factors affecting AE included number of insertions (OR=1.301, P=0.005), lesions at high-risk areas (OR=2.829, P=0.025), more than 5 lesions (OR=4.655, P=0.010), history of abdominal surgery (OR=7.716, P=0.047) and clonorchiasis (OR=17.683, P=0.005). Conclusion: The incidence of AE in ultrasound-guided percutaneous MWA for CRLM is low. The number of lesions and insertions, lesions at high-risk areas, history of abdominal surgery, and clonorchiasis are associated with the incidence of AE.