Byung-Su Kim, Pil-Wook Chung, Hong-Kyun Park, Mi Ji Lee, Jae Myun Chung, Kyung Min Kim, Jiyoung Kim, Heui-Soo Moon, Dae-Woong Bae, Jong-Hee Sohn, Tae-Jin Song, Wonwoo Lee, Soohyun Cho, Myoung-Jin Cha, Yun-Ju Choi, Miyoung Choi
Headache Pain Res. 2026;27(2):124-144. Published online June 30, 2026
Purpose: This clinical practice guideline (CPG) was developed by the Korean Headache Society (KHS) to provide evidence- based recommendations for the acute and preventive treatment of cluster headache (CH).
Methods The CPG Committee of the KHS identified key clinical questions regarding the acute and preventive treatment of CH through a systematic literature review. The Grading of Recommendations Assessment, Development and Evaluation (GRADE) methodology was used to assess the quality of evidence and determine the strength of the evidence-based recommendations.
Results For acute treatment, subcutaneous sumatriptan, intranasal zolmitriptan, intranasal sumatriptan, oral zolmitriptan, and oxygen are strongly recommended based on moderate-quality evidence. For preventive treatment, suboccipital steroid injection, oral corticosteroids, and galcanezumab (specifically for episodic CH) are strongly recommended based on moderate- quality evidence. Despite the low quality of evidence, verapamil is also strongly recommended, whereas lithium is recommended with a weaker strength of recommendation. Other oral triptans, NSAIDs, ergot derivatives, subcutaneous octreotide, intranasal lidocaine, and non-invasive vagus nerve stimulation (nVNS; specifically for episodic CH) are recommended for acute treatment based on expert consensus. For preventive treatment, topiramate, valproic acid, melatonin, and nVNS (as adjunctive therapy specifically for chronic CH) are recommended, whereas sphenopalatine ganglion stimulation, occipital nerve stimulation, and deep brain stimulation are recommended for patients with refractory chronic CH based on expert consensus.
Conclusion This CPG provides evidence-based recommendations for the treatment of CH. In addition, the authors recommend the use of expert consensus-based treatments to bridge the gap between the available evidence and real-world clinical practice.
The glymphatic system is a brain-wide perivascular pathway that functions similarly to the lymphatic system in the periphery of the body, playing a crucial role in removing waste from the brain. Although impaired glymphatic function has a well-known relationship with neurodegenerative diseases through abnormal protein accumulation, it is also associated with migraine. While still in its nascent phase, research on the glymphatic system in migraine patients is gradually increasing. This systematic literature review focuses on studies investigating the glymphatic system in migraineurs. Furthermore, it examines the methods used to evaluate the glymphatic system in these studies and their main findings.
Citations
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Comments on “Brain Glymphatic and Lymphatic Systems in Migraine: Mechanistic Insights and Neuromodulation Perspectives with an Emphasis on Ultrasound-Based Approaches” Soo-Jin Cho Headache and Pain Research.2026; 27(2): 169. CrossRef
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The relationship between migraine and stroke is intricate and bidirectional. Migraine, a neurological disorder characterized by severe headaches and associated symptoms, exhibits some similarities in presentation with stroke. Conversely, stroke can at times mimic migraine symptoms. Migrainous infarction is directly associated with stroke. Specifically, migraine with aura has been linked to an increased risk of ischemic stroke. Migraine with aura and the frequency of headaches are considered risk factors for stroke. Moreover, migraine is associated with subclinical infarct-like brain lesions and white matter changes. Additionally, some genetic disorders predispose individuals to develop both migraine and stroke. In this review, we aim to investigate the relationship between migraine and stroke.
There are many different types of headaches, but they can be broadly classified as primary and secondary headaches. The Diagnosis of Headaches involves understanding the epidemiology of headaches, identifying the signs of secondary headaches, and applying the diagnostic criteria outlined in the International Classification of Headache Disorders. Clinicians should have a clear understanding of SNNOOP10 to indicate secondary headache. Furthermore, the evaluation of patients who present with a thunderclap headache should be conducted with great care and detail.