Chronic Inflammatory Demyelinating Polyneuropathy After COVID-19 Vaccination
Chronic inflammatory demyelinating polyneuropathy (CIDP) is a rare autoimmune neurological disorder that affects the peripheral nervous system. Unlike Guillain-Barré syndrome (GBS) that develops rapidly and reaches its peak within a few weeks, CIDP is a chronic condition that develops more slowly and can last for months or even years. It is characterized by chronic inflammation and damage to the myelin sheath that covers and protects the nerves, leading to symptoms such as weakness, numbness, and tingling in the arms and legs. CIDP is estimated to affect about 1 to 2 people per 100,000 population per year, and it can occur at any age, although it is more common in middle-aged and older adults. Left untreated, 30% of CIDP patients will progress to wheelchair dependence. A previously healthy 72-year-old man presented with a progressive tingling sensation and weakness below both knees for two weeks that started two weeks after vaccination with the 3rd dose of mRNA-1273. As the symptoms