Headache caused by ischaemic stroke and persisting for more than 3 months after the stroke has stabilized.

Diagnostic criteria:
  1. Headache previously diagnosed as Acute headache attributed to ischaemic stroke (cerebral infarction), and fulfilling criterion C
  2. The ischaemic stroke has stabilized, spontaneously or through treatment
  3. Headache has persisted for >3 months after stabilization of the ischaemic stroke
  4. Not better accounted for by another ICHD-3 diagnosis.

A few studies have documented headaches meeting the criteria for Persistent headache attributed to past ischaemic stroke (cerebral infarction). Research is needed to identify risk factors for such persistent headache; previous history of 1. Migraine may play a role, as may anxiety/depression.