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To investigate the safety, local ablation efficacy, analgesic effects, and factors influencing the survival of patients with advanced pancreatic cancer treated with high-intensity focused ultrasound (HIFU). Patients with advanced pancreatic cancer who underwent HIFU for the first time at the Suining Central Hospital between January 2018 and September 2022 were enrolled. The efficacy of tumor ablation was assessed using enhanced computed tomography (CT) and magnetic resonance imaging (MRI), pain relief was assessed using the visual analog scale (VAS), and complications and survival rates were investigated. The Kaplan–Meier method and a Cox regression model were used to analyze the independent risk factors that may have affected prognosis. Intraoperative ultrasonography showed varying degrees of grayscale changes in all cases. One month after surgery, enhanced computed tomography or magnetic resonance imaging examinations showed complete or partial responses in 85.22% of the patients. Pain relief was achieved in 98.21% of the patients. No postoperative complications of SIR-C grade or higher were observed. The overall median survival time (MST) was 12.1 months. Cox multifactorial analysis showed that the main factors affecting overall survival (OS) were clinical stage, preoperative liver function, and combination chemotherapy. HIFU is safe and effective for pancreatic cancer treatment, and has the potential to become an important supplement for the treatment of advanced pancreatic cancer. This approach needs to be further verified by multi-center and large-sample studies.

Analysis of the results of high-intensity focused ultrasound for patients with advanced pancreatic cancer