British journal of anaesthesia
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Review Meta Analysis
Low-dose ketamine in painful orthopaedic surgery: a systematic review and meta-analysis.
Low dose ketamine reduces pain and opioid requirements in the first 24 hours after major joint surgery.
pearl -
Review
Molecular mechanisms of action of systemic lidocaine in acute and chronic pain: a narrative review.
The systemic antinociceptive effects of lidocaine occur by mechanisms other than sodium channel blockade, including silencing of ectopic discharges, inflammatory suppression, and neurotransmission modulation.
pearl