Research Article

The Effects of Thoracic Epidural Analgesia during Percutaneous Radiofrequency Ablation for Hepatocellular Carcinoma

Figure 2

The 11-point numerical rating scale (NRS-11) score reported by patients after percutaneous radiofrequency ablation (PRFA). Pre = before procedure; PACU = postanesthesia care unit; PPD 1 = postprocedure day 1. compared with Group C.