Post-anesthesia acute chorea represents a rare but startling neurological event in pediatric patients. While most anesthetic side effects occur immediately, delayed reactions present a unique challenge for surgical teams. A recent case study describes an 11-year-old girl who developed severe involuntary movements 24 to 36 hours after ankle surgery.

The patient, who was otherwise healthy, exhibited distressing behaviors including screaming and visual hallucinations. Initially, clinicians considered several alternative diagnoses. However, brain imaging and cerebrospinal fluid analysis returned normal results. Additionally, tests for autoimmune encephalitis and common infections were negative. Consequently, the medical team excluded typical etiologies like Strep-related chorea or systemic lupus erythematosus.

Understanding Post-anesthesia Acute Chorea Triggers

The researchers ultimately attributed the movement disorder to propofol and tramadol exposure. Furthermore, they noted that the girl experienced a paradoxical psychiatric reaction to midazolam. Although haloperidol is often the first-line treatment for agitation, it failed to provide rapid control in this instance. Instead, the medical team utilized a continuous midazolam infusion as a bridge therapy. This approach effectively stabilized the patient until the symptoms resolved.

This case underscores that anesthetic complications do not always align with drug half-lives. Therefore, pediatricians and anesthesiologists must monitor patients for late-onset neurological shifts. Timely recognition and the use of benzodiazepine infusions can prevent further distress and complications in these rare scenarios.

Frequently Asked Questions

What are the common symptoms of post-anesthesia acute chorea?

Symptoms typically include involuntary, jerky movements known as chorea. Patients may also experience psychiatric disturbances such as hallucinations, screaming, or intense agitation.

Which medications are often linked to these movements?

Propofol and tramadol are frequently implicated in anesthetic-related movement disorders. In some pediatric cases, benzodiazepines like midazolam may also trigger paradoxical psychiatric reactions.

Disclaimer: This content is for informational and educational purposes only. It does not constitute professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Refer to the latest local and national guidelines for clinical practice.

References

1. Tekin HG et al. Delayed-Onset Acute Chorea Following Anesthesia. J Child Neurol. 2026 Feb 16. doi: 10.1177/08830738261420286. PMID: 41699441.

2. Siniscalchi A, et al. Movement disorders after anesthesia: A review. J Clin Med. 2022;11(10):2824.

3. Krauss B, Green SM. Procedural sedation and analgesia in children. Lancet. 2006;367(9512):766-780.