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[Bilateral hypoacusia and basilar dolichoectasia]

J M López-Domínguez1, J L Casado-Chocán, A Blanco-Ollero

  • 1Sección de Neurología, Hospital Juan Ramón Jiménez, Huelva, España.

Revista De Neurologia
|December 1, 1996
PubMed
Summary

Bilateral hypoacusia, or hearing loss, can be an isolated symptom of basilar dolichoectasia (DB), a rare vascular condition. Early diagnosis via neuroimaging is crucial for hypertensive patients with unexplained hearing loss.

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Area of Science:

  • Neurology
  • Vascular Neurology

Background:

  • Basilar dolichoectasia (DB) can cause various neurological deficits due to compression of cranial nerves, brainstem, and vertebrobasilar system.
  • Clinical manifestations of DB typically include cranial nerve palsies, ischemic events, and hydrocephalus.
  • Hypoacusia (hearing loss) is an uncommon isolated symptom of basilar dolichoectasia.

Observation:

  • A case study of a 48-year-old male patient with hypertension presented with bilateral hypoacusia as the sole clinical finding.
  • Magnetic Resonance (MR) imaging confirmed the diagnosis of basilar dolichoectasia.
  • Arteriography revealed vascular changes consistent with an anomalous blood vessel contributing to the condition.

Findings:

  • This case highlights that bilateral hypoacusia can be an isolated presenting symptom of basilar dolichoectasia.

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  • The patient's hypertension was a significant comorbidity, suggesting a potential link between vascular health and DB presentation.
  • Diagnostic imaging, including MR and arteriography, was essential in identifying DB and its associated vascular anomaly.

    • Implications:

    • In clinical practice, basilar dolichoectasia should be considered in the differential diagnosis of patients presenting with unexplained hypoacusia, particularly those with hypertension.
    • Cerebral magnetic resonance imaging or angioresonance are recommended for ruling out DB in such cases.
    • This underscores the importance of comprehensive neurovascular evaluation for seemingly isolated neurological symptoms.