RT Book, Section A1 Lee, Fred A1 Burt, Bryan M. A2 Sugarbaker, David J. A2 Bueno, Raphael A2 Burt, Bryan M. A2 Groth, Shawn S. A2 Loor, Gabriel A2 Wolf, Andrea S. A2 Williams, Marcia A2 Adams, Ann SR Print(0) ID 1170415362 T1 Thoracic Outlet Syndrome T2 Sugarbaker’s Adult Chest Surgery, 3e YR 2020 FD 2020 PB McGraw-Hill Education PP New York, NY SN 9781260026931 LK accesssurgery.mhmedical.com/content.aspx?aid=1170415362 RD 2024/04/23 AB Thoracic outlet syndrome (TOS) encompasses a trio of conditions that result from compression of the neurovascular structures that serve the upper extremity: the brachial plexus (neurogenic thoracic outlet syndrome), the subclavian vein (venous TOS), and the subclavian artery (arterial TOS), and each syndrome is defined by a distinct presentation. The name TOS was previously designated according to the etiology of the compression—that is, scalenus anticus, costoclavicular, hyperabduction, cervical rib, or first rib syndrome. Most compressive factors operate against the first rib and produce a variety of symptoms, depending on which neurovascular structures are compressed. These factors, along with common etiologies and symptoms, are illustrated in Figure 143-1. This chapter will review the anatomy and pathophysiology of thoracic outlet syndrome and the transaxillary approach to first rib resection. Subsequent chapters will detail other surgical approaches to first (and cervical) rib resection including supraclavicular (Chapter 144) and thoracoscopic approaches (Chapter 145) and will address the vascular interventions often additionally required for venous TOS.