Cardiothoracic & vascular anesthesia

Comparative Efficacy of Adjuvant Nonopioid Analgesia in Adult Cardiac Surgical Patients: A Network Meta-Analysis

J Cardiothorac Vasc AnesthPublished Systematic review and network meta-analysis of randomised controlled trials

Authors' conclusion

Given the increasing emphasis on enhanced recovery after surgery(ERAS) protocols and the eventual goal of limiting opiate prescriptions postoperatively, the authors' data suggested far greater use of nonopioid adjuncts to minimize pain and enhance recovery following cardiac surgery.

Study context

Population
Adults (≥18 years) undergoing cardiac surgery124 RCTs, 110 analysed
Participants
26,257 adults
Comparison
Adjuvant nonopioid analgesic regimens vs standard care and/or placebo
  • Acetaminophenn = 176
  • Magnesiumn = 323
  • Gabapentinn = 96
  • Clonidinen = 64
Outcome
Resting postoperative pain scores
Follow-up
24 hours
Methodological detailsfrequentist, random-effects, PRISMA-NMA, risk of bias (RoB) 2, Confidence in Network Meta-Analysis, Databases searched from inception to October 9, 2021
  • Frequentist
  • Random-effects
  • PRISMA-NMA
  • RoB 2
  • Confidence in Network Meta-Analysis
  • Databases searched from inception to October 9, 2021

Pooled result

As reported in the abstract

Resting postoperative pain score
Each group vs standard care and/or placeboMD, points (95% CI)
Acetaminophenhigh confidence
−0.66(−1.16 to −0.15)
Gabapentinmoderate confidence
−0.40(−0.71 to −0.09)
Magnesium · high confidence
−0.05 points (95% CI −0.07 to −0.02)
Clonidine · moderate confidence
MD v0.38 points (95% CI −0.73 to v0.04)

Further pooled results

24-hour opioid consumption

Significantly reduced by indomethacin, diclofenac, magnesium and gabapentin

ICU LOS

Significantly decreased by four regimens
4

Duration of mechanical ventilation

Significantly decreased by hydrocortisone, dexmedetomidine and clonidine

Safety

MI

Risk decreased with magnesium; significantly increased with methylprednisolone

Original publication

Comparative Efficacy of Adjuvant Nonopioid Analgesia in Adult Cardiac Surgical Patients: A Network Meta-Analysis. J Cardiothorac Vasc Anesth. Published 18 March 2023. doi:10.1053/j.jvca.2023.03.018

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