Purpose: Secondary trigeminal autonomic cephalalgias (TACs) are typically associated with posterior fossa abnormalities, such as tumors and vascular malformations. However, TACs following brainstem infarctions are rarely reported. This study aimed to characterize the clinical and anatomical features of TACs after unilateral dorsolateral medullary infarction.
Methods We analyzed four patients with dorsolateral medullary infarction who developed secondary TACs, diagnosed using the International Classification of Headache Disorders, third edition criteria. All patients underwent detailed neurological examinations and neuroimaging, including diffusion-weighted magnetic resonance imaging and magnetic resonance angiography. Additionally, five published cases were identified through a literature review and analyzed in conjunction with our cohort.
Results All patients exhibited stabbing or electric shock-like pain in the ipsilateral periorbital, hemifacial, and temporal regions. Headaches developed weeks to months post-stroke with brief attacks (1–2 minutes) occurring 1–5 times daily. Lacrimation and conjunctival injection were common. Three patients were diagnosed with short-lasting unilateral neuralgiform headache attacks with conjunctival injection and tearing (SUNCT), while a fourth had short-lasting unilateral neuralgiform with cranial autonomic symptoms (SUNA). Each patient, as well as four of the five from the literature, exhibited ipsilateral facial sensory loss, suggesting involvement of the trigeminal spinal tract and nucleus. Delayed headache onset was more frequent in persistent cases.
Conclusion Headache characteristics were more consistent with SUNCT/SUNA than with typical cluster headaches. Careful neurological examination is essential to detect focal signs and guide neuroimaging for identifying secondary causes. Clinicians should consider secondary TACs in patients with new-onset SUNCT/SUNA and focal brainstem signs.
Purpose: The aim of this clinical practice guideline (CPG) from the Korean Headache Society is to provide evidence-based recommendations on the pharmacologic treatment for migraine prevention in adult migraine patients.
Methods The present CPG was developed based on the guideline adaptation methodology through a comprehensive systematic search for literature published between January 2012 and July 2020. The overall quality of the CPGs was assessed using the Korean version of the Appraisal of Guidelines for Research and Evaluation II tool. High-quality CPGs were adapted to make key recommendations in terms of strength (strong or weak) and direction (for or against).
Results The authors selected nine available high-quality guidelines throughout the process of assessment of quality. Regarding oral migraine preventive medications, propranolol, metoprolol, flunarizine, sodium divalproex, and valproic acid are recommended to adult patients with episodic migraines based on high-quality evidence (“strong for”). Topiramate can be recommended for either episodic or chronic migraine (“strong for”). For migraine prevention using calcitonin gene-related peptide monoclonal antibodies, galcanezumab, fremanezumab, erenumab, and eptinezumab are recommended for adult patients with either episodic or chronic migraine on the basis of high-quality evidence (“strong for”). OnabotulinumtoxinA is recommended for adult patients with chronic migraine based on high-quality evidence (“strong for”). Last, frovatriptan, naratriptan, and zolmitriptan are recommended for short-term prevention in women with menstrual migraine (“strong for”).
Conclusion In the present CPG, the authors provide specific, straightforward, and easy-to-implement evidence-based recommendations for pharmacologic migraine prevention. Nevertheless, these recommendations should be applied in real-world clinical practice based on optimal individualization.
Citations
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