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Miyazaki syndrome.

Joana Tavares1, Carla Reizinho2, Ana Luís2

  • 1Neurosurgery, Unidade Local de Saúde de Lisboa Ocidental, Lisboa, Portugal joanamst@hotmail.com.

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|January 19, 2025
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Summary

Miyazaki syndrome, a rare complication of ventricular shunts, causes cervical myelopathy due to cerebrospinal fluid overdrainage. Early diagnosis is crucial to prevent severe consequences, though it can be challenging due to subtle symptoms.

Keywords:
Clinical neurophysiologyHydrocephalusNeuroimagingSpinal cord

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Area of Science:

  • Neurology
  • Neurosurgery
  • Medical Complications

Background:

  • Miyazaki syndrome is a rare complication associated with ventricular shunts.
  • It is characterized by cervical myelopathy resulting from cerebrospinal fluid overdrainage.
  • Patients with hydrocephalus treated with ventricular shunts are at risk.

Purpose of the Study:

  • To report a case of Miyazaki syndrome in a young woman with a history of hydrocephalus and a ventricular shunt.
  • To highlight the diagnostic challenges associated with this condition.
  • To emphasize the importance of timely diagnosis and treatment.

Main Methods:

  • Case report presentation.
  • Clinical evaluation of a patient with myelopathy symptoms.
  • Review of patient history including hydrocephalus and ventricular shunt placement.

Main Results:

  • The patient presented with signs and symptoms of myelopathy.
  • The underlying cause was identified as cerebrospinal fluid overdrainage from a ventricular shunt.
  • Diagnosis was complicated by the absence of typical intracranial hypotension signs.

Conclusions:

  • Miyazaki syndrome is a significant complication of ventricular shunts that can lead to severe myelopathy.
  • Diagnostic delays due to subtle or absent signs of intracranial hypotension can have devastating consequences.
  • Prompt recognition and management are essential for favorable outcomes in patients with suspected Miyazaki syndrome.