II. Mechanism

  1. Prolonged Shoulder hyperabduction
    1. Occurs during sleep
    2. Overhead painting
  2. Compression of neurovascular structures
    1. Pass under coracoid process and pectoralis minor

III. Symptoms

  1. Extremity Numbness and Paresthesias
  2. Less severe than other forms of thoracic outlet

IV. Signs

V. Management

  1. Prevent arm hyperabduction at night
    1. Gauze strip tied to wrist and attached to foot of bed

Images: Related links to external sites (from Bing)

Related Studies

Ontology: Hyperabduction syndrome (C0270893)

Concepts Disease or Syndrome (T047)
SnomedCT 17393007
English Hyperabduction syndrome, Pectoralis minor syndrome, Hyperabduction syndrome (disorder), hyperabduction; syndrome, syndrome; hyperabduction
Dutch hyperabductie; syndroom, syndroom; hyperabductie
Spanish síndrome de hiperabducción (trastorno), síndrome de hiperabducción, síndrome del pectoral menor