A Rare Case Report of Morvan Syndrome: A Constellation of Autonomic, Central and Peripheral Nervous System Involvement

Morvan syndrome is an extremely rare neurological autoimmune entity that can be life-threatening for the patient if not detected early. It consists of features of autonomic, peripheral, and central nervous systems, which include fluctuating blood pressure, insomnia, delirium, cognitive decline, hyperhidrosis, and peripheral nerve hyperexcitability in the form of myokymia. It is named after the famous French physician Augustin Marie Morvan. Antibodies against voltage-gated potassium channels have been implicated in this disease. Appropriate immunosuppression and plasmapheresis are commonly used to treat this disease. We present a rare case report of Morvan syndrome from a tertiary care center in Karnataka, South India.