Approach to Chronic Bilateral Headache in Middle-Aged Patients

Initial Assessment and Diagnosis

The American Academy of Neurology recommends ruling out secondary causes through careful history and examination for red flags, then initiating topiramate as first-line preventive therapy while addressing medication overuse headache if present 1, 2, 3
The American Headache Society suggests that critical red flags requiring immediate neuroimaging include new headache onset after age 50, sudden "thunderclap" onset, progressive worsening pattern, headache awakening patient from sleep, and worsening with Valsalva maneuver 2, 3
An essential initial workup includes a complete neurological examination, blood pressure measurement, and ESR and CRP to rule out giant cell arteritis in patients over 50 2, 3

The International Headache Society diagnostic criteria for chronic migraine include ≥15 headache days per month for ≥3 months, ≥8 days per month meeting migraine criteria or responding to migraine-specific treatment, and each headache lasting ≥4 hours 2, 3, 6
A practical diagnostic approach involves asking patients about their headache frequency and implementing a headache diary for accurate tracking 2, 3, 7

The American Academy of Neurology recommends topiramate as first-line therapy for chronic migraine, due to its proven efficacy in randomized, placebo-controlled trials and lower cost compared to alternatives 1, 2, 3
Second-line options include onabotulinumtoxinA and CGRP monoclonal antibodies, which have been proven effective in large Phase III trials 1, 3, 7

The American Headache Society suggests limiting acute medication use to prevent medication overuse headache, with no more than 2 days per week of NSAIDs or triptans 7, 8

The American Academy of Neurology recommends identifying and managing key factors such as obesity, medication overuse, caffeine overuse, obstructive sleep apnea, psychiatric comorbidities, and stress 1, 3

The American Headache Society suggests offering evidence-based non-pharmacologic treatments such as cognitive-behavioral therapy, biofeedback, relaxation training, and exercise to all patients 7

The American Academy of Neurology recommends referring patients with chronic migraine to specialist care, while primary care can initiate topiramate and monitor treatment response 1, 3

The American Headache Society suggests that primary care responsibilities include maintaining stability of adequate outcomes, monitoring treatment response, and using headache calendars to track frequency, severity, and medication use 1, 4

The American Academy of Neurology recommends avoiding critical errors in management, such as assuming migraine without thorough investigation, missing medication overuse headache, failing to initiate preventive therapy, and not addressing comorbidities 1, 2, 3, 5, 7, 8