Headache in acute cerebrovascular disease

Area of Science:

• Neurology
• Stroke Medicine
• Neuroimaging

Background:

• Headache is a common symptom in patients presenting with acute neurological events.
• Differentiating stroke subtypes based on clinical presentation, particularly headache characteristics, remains a diagnostic challenge.

Purpose of the Study:

• To compare headache features across different acute stroke subtypes: subarachnoid hemorrhage (SAH), intraparenchymal hemorrhage (IPH), and ischemic stroke (IS).
• To identify specific headache characteristics that may serve as predictors for particular stroke mechanisms.

Main Methods:

• Retrospective analysis of headache features in 51 patients with acute SAH, 61 with IPH, and 160 with IS.
• Statistical comparison of headache characteristics including sentinel headache, onset headache features (severity, bilaterality), and associated symptoms like vomiting.
• Stepwise logistic regression analysis to determine predictors of stroke subtypes.

Main Results:

• Patients with SAH reported significantly more sentinel headaches, more frequent and severe onset headaches, and more bilateral onset headaches compared to IPH and IS patients.
• Vomiting associated with onset headache was more prevalent in both SAH and IPH groups.
• Onset headache and vomiting were identified as direct predictors of SAH, while inversely related to IS. Sentinel headache did not predict the underlying stroke mechanism.

Conclusions:

• Specific headache features are differentially associated with acute stroke subtypes.
• Onset headache characteristics and the presence of vomiting are valuable clinical indicators that may aid in differentiating SAH from IS.