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Warning headache of subarachnoid hemorrhage and infarction due to vertebrobasilar artery dissection

Takashi Shibata1, Michiya Kubo, Naoya Kuwayama

  • 1Department of Neurosurgery, Faculty of Medicine, Toyama Medical and Pharmaceutical University, Toyama, Japan.

The Clinical Journal of Pain
|January 24, 2006
PubMed

Insights

Sudden, severe occipital headaches can be a warning sign for vertebrobasilar artery dissection (VBAD). Prompt imaging is crucial for early diagnosis and to prevent life-threatening vascular events.

Area of Science:

  • Neurology
  • Vascular Neurology
  • Neuroimaging

Background:

  • Vertebrobasilar artery dissection (VBAD) is a significant cause of stroke.
  • Headache is a common symptom in VBAD, but its role as a warning sign requires further elucidation.
  • Early recognition of warning headaches can improve patient outcomes.

Observation:

  • A retrospective analysis of 30 VBAD patients revealed headache characteristics.
  • Headache occurred in 70% of patients with subarachnoid hemorrhage and 50% with ischemia.
  • Warning headaches were acute, severe, occipital/nuchal, and distinct from prior headaches.

Findings:

  • Headache preceded subarachnoid hemorrhage or ischemia by 1-10 days in VBAD patients.
  • Three patients experienced sudden severe warning headaches without initial deficits, later confirmed with subarachnoid hemorrhage.
  • Angiographic findings were nonspecific in patients with warning headaches.

Implications:

  • Sudden severe occipital and nuchal pain in VBAD should be treated as a critical warning sign for subarachnoid hemorrhage.
  • Urgent CT, MRI, and MRA are recommended for patients presenting with warning headaches.
  • Timely diagnosis and intervention can prevent severe vascular complications from VBAD.
Abstract

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