October 26, 2023 Subject: Clinical Definition, Diagnostic Criteria, and Differentiation of Episodic Migraine
The headache is not better accounted for by another ICHD-3 diagnosis (e.g., tension-type headache, cluster headache, or secondary headaches caused by trauma or infection). episodic migraine definition
| Feature | Episodic Migraine (EM) | Chronic Migraine (CM) | | :--- | :--- | :--- | | | < 15 headache days per month | ≥ 15 headache days per month | | Duration | 3 months of observation required | Must have lasted > 3 months | | Nature | Discrete attacks with pain-free intervals in between | Often constant or near-constant pain; distinct attacks may blur | | Transition | Prodromal Stage | Complication of Migraine | | Risk of Progression | Can progress to Chronic Migraine | May remit back to Episodic Migraine | 2023 Subject: Clinical Definition
Migraine is a complex neurological disease that affects over one billion people worldwide. While many people associate it simply with "bad headaches," it is actually a distinct condition characterized by specific neurological patterns. Medical professionals primarily classify migraine into two categories based on frequency: and chronic . What is the Definition of Episodic Migraine? episodic migraine definition