Thenar Atrophy and Syncope as Signs of Thoracic Outlet Syndrome (TOS): A Clinical Electrophysiological Exploration of Three Cases

Author(s): Juna Musa, Luis Compres, Adriano Valdez, Adrian Puello, Loran Rakovica, Ali Guy, Masum Rahman, Barbara Martinez, Ina Kola, Ruben Blanco

Thoracic outlet syndrome (TOS) is a rare disease that presents with neurogenic and vascular symptoms and is caused by compression of the brachial plexus and/or subclavian vessels as they pass through the cervico thoraco brachial region. However, making the diagnosis of TOS can be challenging due to a lack of standardized objective confirmatory tests. We present three cases of neurovascular TOS where electrophysiological exploration was conducted to develop the diagnose.