Latent Autonomic Dysfunction in a Chronic Cervical Spinal Injury

Area of Science:

• Neurology
• Autonomic Nervous System Research
• Spinal Cord Injury Studies

Background:

• Latent autonomic dysfunction is increasingly recognized in patients with chronic cervical lesions.
• Cervical spinal injuries can lead to subtle, long-term neurological deficits affecting autonomic regulation.
• Autonomic dysfunction may persist asymptomatically following recovery from cervical spinal injury.

Observation:

• A 64-year-old male with a history of cervical spinal injury and excellent neurological recovery experienced recurrent syncope.
• The cause of syncope was elusive for two years, highlighting diagnostic challenges.
• Episodes were triggered by concurrent mental strain and alcohol intake.

Findings:

• The patient's syncope was linked to transient sympathetic overactivation.
• Complete cessation of alcohol intake and avoidance of mental strain resolved the syncope episodes.
• This case demonstrates that autonomic dysfunction can be present but asymptomatic in individuals with prior cervical spinal injury.

Implications:

• Patients with a history of cervical spinal injury may harbor undiagnosed autonomic dysfunction, regardless of apparent neurological status.
• Identifying triggers for symptomatic autonomic dysfunction can be difficult due to their dynamic and varied nature.
• Routine autonomic function evaluation should be considered for individuals with chronic cervical spinal injuries to prevent adverse events.