Thus, our study is aimed at investigating the impact of UG-TPVB on postoperative pain using the numeric rating scale (NRS) score, dosage of tramadol hydrochloride 24 hours after surgery, postoperative inflammation levels using high-sensitivity C-reactive protein (hs-CRP), interleukin-6 (IL-6), and QoL using the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30). The gene discussed is IL6; the disease is cancer.