Paravertebral block's effect on analgesia and inflammation in advanced gastric cancer patients undergoing transarterial chemoembolization and microwave ablation.

Background: Transarterial chemoembolization (TACE) combined with microwave ablation (MWA) is an effective treatment strategy for patients with advanced gastric cancer and liver metastasis. However, it may cause severe postoperative pain and inflammatory responses. The paravertebral block (PVB) is a regional anesthetic technique that provides analgesia to the thoracic and abdominal regions.