Fig. 10From: Analgesic efficacy and safety of erector spinae versus serratus anterior plane block in thoracic surgery: a systematic review and meta-analysis of randomized controlled trialsForest plot for hypotension (adverse effects of the blocks). RR Relative risk, CI Confidence interval, MH Mantel Haenszel, SD Standard deviation, ESPB Erector spinae plane block, SAPB Serratus anterior plane blockBack to article page