Comparative effectiveness of regional analgesia techniques after gastrectomy for gastric cancer: a systematic review and network meta-analysis of randomized trials.

Although ITPB, SAPB, and EOI were associated with lower pain intensity compared with SA, these differences did not reach statistical significance (ITPB: MD = −2.22; 95% CI, −4.56 to 0.12; SAPB: MD = −1.60; 95% CI, −3.61 to 0.41; EOI: MD = −1.58; 95% CI, −3.92 to 0.76), and the certainty of evidence for these comparisons was moderate ( Figure 4 ). 3.3.3 Long-term VAS pain scores at rest In the assessment of long-term resting VAS scores, 12 studies involving 855 patients and 8 interventions were included ( Figure 3B ).

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