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Updated: May 18, 2026

Intra-Operative Neural Monitoring of Thyroid Surgery in a Porcine Model

Intra-Operative Neural Monitoring of Thyroid Surgery in a Porcine Model

Published on: February 11, 2019

Aphonia induced by conversion disorder during a Cesarean section.

Kwok-On Ng¹, Jia-Fu Lee, Wui-Chiu Mui

¹Department of Anesthesiology, Ditmanson Medical Fundation Chia-Yi Christian Hospital, Chia Yi, Taiwan.

Acta Anaesthesiologica Taiwanica : Official Journal of the Taiwan Society of Anesthesiologists

|October 3, 2012

Summary

A rare case of postoperative aphonia (loss of voice) occurred in a patient during a Cesarean section. Conversion disorder was diagnosed, and the patient

Related Experiment Videos

Last Updated: May 18, 2026

Intra-Operative Neural Monitoring of Thyroid Surgery in a Porcine Model

Intra-Operative Neural Monitoring of Thyroid Surgery in a Porcine Model

Published on: February 11, 2019

Area of Science:

Anesthesiology
Psychiatry
Neurology

Background:

Conversion disorder is a rare cause of aphonia during surgical procedures.
Postoperative voice loss requires careful differential diagnosis.

Observation:

A 28-year-old woman developed aphonia after a Cesarean section under epidural anesthesia.
No neurological deficits were detected.
Psychiatric and neurological consultations were performed intraoperatively.

Findings:

The patient was diagnosed with conversion disorder.
Aphonia resolved spontaneously within 36 hours post-operation.
Organic lesions were excluded through comprehensive work-up.

Implications:

Highlights the importance of considering conversion disorder in the differential diagnosis of surgical-related aphonia.
Informs anesthesiologists about this rare but possible complication.
Emphasizes the need for multidisciplinary consultation in complex cases.