nerve paresis may be caused by ischaemia or raised intracranial pressure
, and trochlear were substantially compromised.
nerve paralysis due to giant aneurysm in the medial carotid canal.
The incidence is unknown, but I was unable to identify any case reports in a Medline search and it is the abducens
(sixth cranial nerve) that is affected in 95% of post-dural puncture cranial nerve palsies (6).
Isolated weakness due to myasthenia gravis has been reported involving the distal hand, unilateral ptosis or unilateral abducens
Cranial nerve testing revealed a complete right abducens
cranial nerve palsy.
Chronic idiopathic inflammation of the retropharyngeal space presenting with sequential abducens
Dr Simon Grant BSc PhD Oculomotor, trochlear or abducens
nerve palsies are relatively common, but pose challenges for clinical management.
We considered surgery initially for the temporal bone lesion because the patient had lateral-gaze palsy, which had probably been caused by compression of the abducens
nerve and therefore required immediate decompression.
One case of meningitis, complicated by abducens
nerve palsy, was reported (34).
Signs and symptoms of raised ICP include depressed level of consciousness, pupillary asymmetry, abducens
nerve palsy, papilledema, and periodic breathing.
The neural signals that program each class of eye movements converge on the motoneurons in the abducens
, trochlear and oculomotor nuclei in the brainstem.
The patient may also experience transient visual obscurations as well as horizontal diplopia, which is a consequence of involvement of the abducens
The cranial nerve most commonly affected was the abducens
nerve, followed by the vestibulocochlear nerve and the trigeminal nerve.
If appropriate cardiopulmonary supports are provided, patients may survive but usually have sequelae: for example, central hypoventilation; cranial nerve palsy such as dysphagia, abducens
palsy, and facial palsy; and shoulder weakness and atrophy.