Guillain-Barré Syndrome: Pathophysiology, Diagnostic Approaches, and Advances in Treatment

Guillain-Barré Syndrome (GBS) is an acute autoimmune disorder that primarily affects the peripheral nervous system, leading to progressive muscle weakness, paralysis, and in severe cases, respiratory failure. It is often preceded by an infection, with Campylobacter jejuni being the most commonly associated pathogen. Despite its rare occurrence, GBS presents significant diagnostic and therapeutic challenges, making early recognition and intervention crucial for optimal outcomes. This paper explores the underlying pathophysiology of GBS, emphasizing the role of immune-mediated nerve damage. We also review current diagnostic strategies, including clinical evaluation, lumbar puncture, and electrophysiological tests. Furthermore, the paper examines the latest advancements in treatment, such as intravenous immunoglobulin (IVIG) therapy, plasmapheresis, and the role of rehabilitation in recovery. Finally, we highlight the importance of understanding the long-term outcomes of GBS, as some patients may experience residual neurological deficits. Through this review, we aim to provide an updated overview of GBS, with a focus on improving diagnosis, treatment, and patient recovery.