Complicated migraine is not well known. It is associated with transient and protean sensory and motor
nenrological features although disturbance of mood, affect and psyche has also been described.
This paper is based on a study of ten patients suffering from complicated migraine and attempt is made
to describe various neurological symptoms and signs.
It becomes apparent from this study that there arc diverse manifestations of this interesting disorder.
Furthermore complicated migraine seems to affect a younger age group and there may not be any
family history of migraine. In most cases the nenrological symptoms precede the attacks of headaches.
The nenrological deficit may persist after longer periods. Initially, the attacks arc usnally followed by
complete recovery, with repeated attacks there may be residual neurological deficit. Though the exact
aetiology of the migraine remains unknown, it has been suggested that it is due to spasm or oedema of
cerebral vascular system. If the vessels involved are the carotid artery system, the symptoms and signs
obviously would be due to involvement of cerebral hemisphere, whereas affection of basilar artery
would produce signs and symptoms of cerebellar or brain stem deficiency.
At times it may be extremely difficult to differentiate between a typical attack of migraine and headache
due to an underlying pathology e.g. intracranial angioma or space occupying lesions, which may
require investigations such as angiography. The angiography may prove fruitless and cause deterioration
in neurological signs. A careful follow-up should be planned for cases with complicated migraine
to exclude any underlying pathology.