Headache and Pain Research

Original Article

Availability, Accessibility, and Utilization of Diagnostics and Therapeutics for Spontaneous Intracranial Hypotension in Asia: Soyoun Choi, Woo-Seok Ha, Soo-Jin Cho, Aynur Özge, Betül Baykan, Esme Ekizoglu, Kiratikorn Vongvaivanich, Koichi Hirata, Linh Tuyen Nguyen, Mamoru Shibata, Min Kyung Chu, Otgonbayar Luvsannorov, Ryotaro Ishii, Shengyuan Yu, Shih-Pin Chen, Shuu-Jiun Wang, Takao Takeshima, Tsubasa Takizawa, Vinh Khang Nguyen, Wei-Ta Chen, Yen-Feng Wang, Soo-Kyoung Kim, Mi Ji Lee; Headache Pain Res. 2025;26(2):142-153. Published online June 16, 2025; DOI: https://doi.org/10.62087/hpr.2025.0005

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Abstract PDF Supplementary Material: Purpose: Recent advances in imaging techniques have significantly enhanced the diagnosis of spontaneous intracranial hypotension (SIH). However, these developments have been reported mostly in Europe and the United States. This study aimed to evaluate the availability and utilization of diagnostic and treatment modalities for SIH in Asia, through a survey of regional headache specialists.
Methods
A literature search was conducted using PubMed, and members of the Asian Regional Consortium for Headache were contacted. Participants completed a two-step survey evaluating the availability, accessibility, and frequency of SIH diagnostic and treatment methods in their countries and institutions. Descriptive statistics were used to analyze the data.
Results
Twenty physicians from eight countries completed both rounds of the survey. Lumbar puncture, brain magnetic resonance imaging (MRI), and spinal MRI are widely available across Asia, but real-time imaging techniques—such as dynamic computed tomography myelography and digital subtraction myelography—that precisely localize cerebrospinal fluid leaks are less accessible. Blind or semi-targeted epidural blood patches (EBPs) are available at most centers, but are easily accessible in only about half of cases. Surgical interventions are rarely available.
Conclusion
Most diagnostic methods for SIH are available in Asia, despite some regional disparities. The utilization of EBP and surgical interventions remains somewhat limited. This highlights the need for greater awareness and standardization of diagnostic methods in Asia.

Review Article

Genetic Architecture of Migraine: From Broad Insights to East Asian Perspectives: Joonho Kim, Min Kyung Chu; Headache Pain Res. 2025;26(2):116-129. Published online May 27, 2025; DOI: https://doi.org/10.62087/hpr.2025.0003

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Abstract PDF: Migraine is a complex neurological disorder with a strong genetic component, ranging from rare monogenic forms, such as familial hemiplegic migraine (FHM), to common polygenic migraine. FHM is primarily caused by mutations in CACNA1A, ATP1A2, and SCN1A, which affect ion channel function and cortical excitability. Additional genes, including PRRT2, have also been implicated, broadening the genetic landscape of monogenic migraine. Genome-wide association studies (GWAS) have identified multiple susceptibility loci for common migraine, highlighting key pathways related to neuronal excitability and vascular function. These findings have reinforced the neurovascular hypothesis of migraine pathogenesis. GWAS on other headache disorders, such as broadly defined headache or cluster headache, have also revealed both overlapping and distinct genetic risk factors. Genetic studies in East Asians have identified both ancestry-specific risk variants and overlapping loci with European populations, suggesting similarities in biological pathways while also highlighting population-specific differences in migraine susceptibility. Expanding research on the genetics of migraine in East Asian populations is essential for uncovering novel risk factors and improving the generalizability of genetic findings.

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