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Muscle rigidity due to fentanyl infusion in the pediatric patient

C Glick1, O B Evans, B R Parks

  • 1Department of Pediatrics, University of Mississippi Medical Center, Jackson 39216-4505, USA.

Southern Medical Journal
|November 1, 1996
PubMed

Insights

Fentanyl can cause unusual muscle rigidity even at lower doses. This case report highlights a rare side effect of the potent opioid analgesic, fentanyl.

Area of Science:

  • Anesthesiology
  • Pharmacology
  • Neurology

Background:

  • Fentanyl is a potent synthetic opioid analgesic.
  • Muscle rigidity is a known but uncommon adverse effect of fentanyl administration.
  • Typical fentanyl doses associated with muscle rigidity are generally higher than those reported in these cases.

Observation:

  • Two distinct cases of fentanyl-induced muscle rigidity were observed.
  • The pattern of muscle rigidity presented in these cases was atypical.
  • Fentanyl administration involved doses lower than typically expected to induce this side effect.

Findings:

  • The study documents two cases of fentanyl-induced muscle rigidity.
  • Key features include an unusual presentation of rigidity.
  • Lower-than-usual fentanyl doses were implicated in these occurrences.

Implications:

  • These findings suggest a need for increased vigilance regarding fentanyl's potential to cause muscle rigidity.
  • Clinicians should consider fentanyl as a potential cause of muscle rigidity, even with seemingly low doses.
  • Further research may be warranted to understand the mechanisms behind fentanyl-induced rigidity at lower doses.

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