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Postoperative Functional Neurologic Disorder in a Freestanding Ambulatory Surgery Center: A Case Report
Rayvanth Chappidi1,2, Joanna Serafin1, Kara M Barnett3
1From the Department of Anesthesiology and Critical Care Medicine, Memorial Sloan Kettering Cancer Center, New York, New York.
A&A Practice
|February 5, 2026
Summary
Functional neurological disorder (FND) can present postoperatively, mimicking serious emergencies. This case highlights how FND can cause temporary unresponsiveness and immobility after anesthesia, delaying patient discharge.
Area of Science:
- Neurology
- Anesthesiology
Background:
- Functional neurological disorder (FND) is a rare, nonorganic condition.
- FND can manifest with variable sensory or motor impairments postoperatively, often inconsistent with established medical diagnoses.
Purpose of the Study:
- To report a case of functional neurological disorder presenting after general anesthesia.
- To illustrate the diagnostic challenges and potential for mimicking organic emergencies.
Main Methods:
- Case report of an elderly woman experiencing postoperative unresponsiveness, immobility, and mutism after general anesthesia.
- Comprehensive neurological evaluation in an emergency department setting.
Main Results:
- The patient exhibited temporary unresponsiveness, immobility, and mutism with preserved awareness for several hours post-surgery.
- Extensive neurological workup was unremarkable, and the patient spontaneously recovered to baseline.
Conclusions:
- Postoperative functional neurological disorder can closely mimic acute organic neurological emergencies.
- This presentation can complicate same-day discharge protocols in ambulatory surgery settings.
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