Chapter 13 Flashcards
What is thoracic outlet?
The superior opening of the thoracic cavity, which is bordered by the clavicle and first rib. The subclavian artery, subclavian vein, and brachial nerve plexus pass through this opening
What is Raynauds syndrome?
A vasospastic disorder of the digital vessels
What is Takayasus arteritis?
A form of large vessel vasculitis, resulting in intimal fibrosis and vessel narrowing
What is a vasospasm?
A sudden constriction of a blood vessel, which will reduce the lumen and blood flow rate
What percentage of extremity peripheral arterial disease do upper extremity arterial diseases represent?
5%
What is a dilated segment of the proximal descending aorta which may give rise to the takeoff of an aberrant subclavian artery?
Kommerells diverticulum
What are potential consequences of compression of the subclavian artery at the thoracic outlet?
Thrombosis, stenosis and aneurysm
Injury of what artery may result in hypothenar hammer syndrome?
The ulnar artery at the wrist
Which arteries do the sternal notch window, and the infraclavicular and supraclavicular approaches, all used to visualize?
The subclavian arteries
Under normal conditions, what is the flow-velocity range of the arteries in the forearm?
40 to 60 cm/s
With what condition are aneurysms of the subclavian arteries often associated?
Thoracic outlet syndrome
What is the landmark that marks the transition from the axillary artery to the brachial artery?
Inferolateral border of the teres major muscle
How is primary Raynaud’s syndrome distinguished from secondary Raynaud’s syndrome or Raynaud’s phenomenon?
There are no underlying diseases
How is “arterial minor” form of thoracic outlet syndrome defined?
Intermittent compression of the subclavian when arm is raised over head
Which condition is associated with significant stenosis or occlusion of arteries of the arm and/or forearm from atherosclerosis?
Diabetes and/or renal failure