Methysergide therapy causing vascular insufficiency of the upper limb

Area of Science:

• Vascular Medicine
• Pharmacology
• Neurology

Background:

• Methysergide maleate is a medication historically used for the prophylaxis of migraine headaches.
• Vascular complications, though rare, have been associated with methysergide use.

Purpose of the Study:

• To report a case of brachial artery occlusion potentially linked to methysergide maleate treatment.
• To highlight the importance of considering medication side effects in vascular events.

Main Methods:

• A case study of a 41-year-old woman treated with methysergide maleate for severe headaches.
• Diagnostic arteriography was performed to confirm arterial occlusion.
• Follow-up arteriography assessed the resolution of the occlusion after drug withdrawal.

Main Results:

• The patient presented with occlusion of the left brachial artery.
• The occlusion was attributed to methysergide maleate, leading to its discontinuation.
• Arteriography confirmed normalization of distal pulses and resolution of occlusion within 4 days of drug withdrawal.
• The patient became asymptomatic.

Conclusions:

• Methysergide maleate may be associated with serious vascular events such as arterial occlusion.
• Discontinuation of the suspected causative agent can lead to rapid clinical and radiological improvement.
• Clinicians should maintain a high index of suspicion for drug-induced vascular complications.