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Serial systemic immune inflammation indices: markers of acute migraine events or indicators of persistent inflammatory status?

T. Wijeratne, Melanie J. Murphy, Chanith Wijeratne, P. Martelletti, Leila Karimi, V. Apostolopoulos, Carmela Sales, Nina Riddell et al.

The Journal of Headache and Pain, 2025

119 participants · 15 citations

Abstract

Migraine is the most common complex neurological disorder, affecting over a billion people worldwide. Neurogenic inflammation has long been recognized as a key factor in the pathophysiology of migraine though little research has been directed to investigating whether inflammation is greatest in migraine with aura or without, and whether inflammation is a permanent state in migraine or whether is an event related transitory state. Thus, the primary aim of this single-centre, retrospective study was to explore the potential clinical utility of the Serial Systemic Immune-Inflammatory Indices (SSIIi) as a comparative measure of duration and severity of inflammation derived from routine blood cell counts in migraine patients with aura and no-aura both within an acute inpatient setting and as outpatients. Specifically, we assessed the role of two serial white blood cell counts to calculate the SSIIi using the formula: neutrophil count x platelet count/lymphocyte count) between aura and no-aura migraine patients at time of admission to a tertiary care centre in Melbourne, Australia, and following 24 h post admission versus comparable serial measures in 20 out patients with migraine and ongoing symptoms. A retrospective analysis was conducted of medical records using baseline demographics and brain imaging findings from 186 migraine hospitalized in-patients who had at least two sets of white blood cell counts drawn within 24 h following their admission to the emergency department of…

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