Erector spinae plane block for postoperative pain.

Area of Science:

• Anesthesiology
• Regional Anesthesia
• Pain Management

Background:

• Postoperative pain management remains a significant clinical challenge, often requiring multimodal approaches including opioids and regional anesthesia.
• The erector spinae plane block (ESPB) has emerged as a novel regional anesthesia technique with potential to reduce opioid consumption and associated side effects.

Approach:

• A systematic review and meta-analysis of randomized controlled trials (RCTs) was conducted to evaluate the analgesic efficacy and safety of ESPB.
• Searches were performed across major databases (CENTRAL, MEDLINE, Embase, Web of Science) updated to January 2022.
• Data from 64 RCTs involving 3973 participants were included in the meta-analysis, assessing pain intensity and block-related adverse events.

Key Points:

• ESPB likely provides a slight, non-clinically relevant reduction in postoperative pain at 24 hours compared to no block (moderate-certainty evidence).
• Compared to placebo, ESPB showed no significant effect on pain intensity at 24 hours (moderate-certainty evidence).
• ESPB demonstrated comparable analgesic effects and similar rates of block-related adverse events to other regional techniques like paravertebral block and transversus abdominis plane block (low to moderate-certainty evidence).

Conclusions:

• ESPB, when added to standard care, probably does not significantly improve postoperative pain intensity at 24 hours compared to no block.
• The incidence of block-related adverse events associated with ESPB is low.
• Further research is warranted to explore the potential for extended analgesia duration and to update evidence based on ongoing studies.