Analgesic efficacy of thoracic paravertebral block in elderly gastric cancer patients and its impact on homeostasis

Figure 1 Comparison of operative and extubation times between the two groups. A: Operative time; B: Extubation time. NS: Not significant.

Figure 2 Comparison of postoperative visual analog scale pain scores at 6, 24, and 48 hours postoperatively between the two groups. A: At 6 hours; B: At 24 hours; C: At 48 hours. ^cP < 0.0001. VAS: Visual analog scale.

Figure 3 Comparison of white blood cell count, neutrophil percentage, and Interleukin-6 between the two groups preoperatively and 12, 24, and 72 hours postoperatively. A: White blood cell; B: Neutrophil percentage; C: Interleukin-6. ^aP < 0.05; ^cP < 0.0001. NS: Not significant; WBC: White blood cell; NEUT: Neutrophil; IL-6: Interleukin-6.

Figure 4 Comparison of partial pressure of O₂, partial pressure of CO₂, and lactate levels between the two groups preoperatively and 12 hours postoperatively. A: Partial pressure of O₂; B: Partial pressure of CO₂; C: Lactate. ^cP < 0.0001. NS: Not significant; PaO₂: Partial pressure of O₂; PaCO₂: Partial pressure of CO₂; Lac: Lactate.

Figure 5 Comparison of alanine aminotransferase, aspartate aminotransferase, serum creatinine, and blood urea nitrogen between the two groups preoperatively and 24 and 72 hours postoperatively. A: Alanine aminotransferase; B: Aspartate aminotransferase; C: Serum creatinine; D: Blood urea nitrogen. NS: Not significant; ALT: Alanine aminotransferase; AST: Aspartate aminotransferase; Cr: Creatinine; BUN: Blood urea nitrogen.