Clinical Scorecard: Rear Naked Choke and Subsequent Delayed Post-Hypoxic Leukoencephalopathy: An Emerging Assault Method in Mexico City

At a Glance

Key Highlights

• DPHL is a rare demyelinating syndrome presenting neuropsychiatric symptoms days to weeks after apparent recovery from acute cerebral hypoxia.
• Rear Naked Choke (RNC) causes carotid artery compression, leading to cerebral hypoxia and ischemia, triggering HIE and potentially DPHL.
• MRI and brain biopsy confirm ischemic white matter lesions and gliosis consistent with acute and chronic hypoxic-ischemic injury evolving into DPHL.

Guideline-Based Recommendations

Diagnosis

• Consider DPHL in patients with delayed neuropsychiatric symptoms following an initial hypoxic event.
• Use MRI to identify ischemic-type lesions in white matter with diffusion hyperintensity.
• Confirm diagnosis with brain biopsy showing reactive gliosis, neuronal loss, spongiosis, and vascular changes.

Management

• Initiate symptomatic treatment including antiepileptics (phenytoin, lamotrigine) and dopaminergic agents (carbidopa-levodopa) as indicated.
• Monitor and manage neuropsychiatric symptoms with appropriate pharmacotherapy (e.g., risperidone).
• Provide supportive care for functional dependence and neurological deterioration.

Monitoring & Follow-up

• Regular neurological assessments to track progression of cognitive, motor, and behavioral symptoms.
• Repeat imaging studies to evaluate lesion evolution.
• Monitor for complications such as seizures, myoclonus, and autonomic dysfunction.

Risks

• Prolonged carotid compression can cause irreversible brain damage due to hypoxia and ischemia.
• Delayed onset of neuropsychiatric symptoms may lead to misdiagnosis or delayed treatment.
• Progression to rapidly progressive dementia and total functional dependence is possible.

Patient & Prescribing Data

Adult patient with DPHL secondary to strangulation-induced cerebral hypoxia

Combination of antiepileptics and dopaminergic therapy was used without significant improvement; neuropsychiatric symptom management remains challenging.

Clinical Best Practices

• Early recognition of strangulation as a cause of cerebral hypoxia to anticipate possible delayed neurological sequelae.
• Use multimodal diagnostic tools including MRI and brain biopsy to differentiate acute HIE from evolving DPHL.
• Implement multidisciplinary care involving neurology, psychiatry, and rehabilitation to manage complex symptomatology.

References

• Hypoxic-Ischemic Encephalopathy Pathophysiology
• Delayed Post-Hypoxic Leukoencephalopathy Clinical Features
• Strangulation and Cerebral Hypoxia Mechanisms