Related Experiment Video
Updated: Mar 20, 2026

Electrophysiological Methods to Assess Peripheral Pain Block in an Anesthetized Rat
Published on: November 21, 2025
The Effect of Intravenous Dexamethasone on the Duration of Peripheral Nerve Blocks in Orthopedic Surgical Adult
Lydia Carra1,2,3,4,5, Michelle Gibbons1,2,3,4,5, Sean J Smith1,2,3,4,5
1Lydia Carra RN, DNP CCRN, Nurse Anesthesia Program, Division of Advanced Nursing Practice, Rutgers, The State University of New Jersey, Newark, NJ.
Background:
Regional anesthesia is preferred over general anesthesia for benefits like hemodynamic stability, opioid-free pain relief, and reduced postoperative nausea. Its short duration may not fully address postoperative pain in orthopedic surgeries.
Objective:
To examine the evidence on dexamethasone as an adjunct to extend the duration of peripheral nerve blocks in orthopedic patients.
Method:
A systematic review was conducted. The heterogeneity across studies precluded meta-analysis; the SWiM (Synthesis Without Meta-Analysis) method was used to analyze data.
Results:
Seven studies included in this review demonstrate that IV dexamethasone prolongs peripheral nerve block duration and reduces opioid use, with improved pain relief within the first 24 hours post-surgery.
Implications:
Implementing opioid-sparing strategies can improve pain management and reduce patients' exposure to opioid side effects.
Conclusions:
By extending the analgesic effects of peripheral nerve blocks, dexamethasone is a valuable addition to Enhanced Recovery After Surgery protocols, playing a key role in addressing the opioid epidemic.
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