S2 L7.2: Peripheral Arterial Disease & Vasomotor Disease Flashcards
A clinical disorder in which there is a stenosis or
occlusion in the aorta or arteries of the limbs.
PERIPHERAL ARTERIAL DISEASE
Modified T/F: Atherosclerosis is the leading cause of PAD in patients >
40 years old. The highest prevalence of atherosclerotic PAD occurs in
the sixth and seventh decades of life.
True
What are the risk factors for peripheral arterial disease?
Risk factors: tobacco smoking, diabetes mellitus,
hypercholesterolemia, hypertension or
hyperhomocysteinemia.
most common symptom
Intermittent claudication
What is being described
○ A clinical emergency
○ Rest pain or a feeling of cold or numbness in the foot
and toes
○ Occur at night or when lying down when the legs are
horizontal and improve when the legs are in a
dependent position
Critical limb ischemia
With severe ischemia, rest pain may be persistent
T/F: In PAD, increased pulses distal to the obstruction
False. Decreased or absent pulses distal to
the obstruction
T/F: Bruits over the narrowed artery
True
What is the normal range of ABI?
○ ≥ 1.0 normal
○ ≤ 1.0 PAD
○ < 0.05 severe PAD
How do you diagnose PAD?
● ABI
● Arterial Ultrasonography/Duplex Scan
● Pulse volume recordings
● Treadmill Stress Test
● Arteriography
● MR Angiography
● CT Angiography
What is being described
● Buerger’s disease (strongly associated with smoking
usually in younger individuals)
● An inflammatory occlusive vascular disorder involving
small and medium-sized arteries and veins in the distal
upper and lower extremities
● More on the LE.
THROMBOANGIITIS OBLITERANS
What comprises of the triad in THROMBOANGIITIS OBLITERANS
○ Claudication of the affected extremity
○ Raynaud phenomenon
○ Migratory superficial vein thrombophlebitis
In THROMBOANGIITIS OBLITERANS, claudiccation is usually confied to the ?
calves and feet or
the forearms and hands
T/F: No specific treatment except abstention from tobacco for TAO
True
What is being described
● Episodic digital ischemia
● Triphasic color change: digital blanching, cyanosis, and
rubor of the fingers or toes following cold exposure and
subsequent rewarming
● Emotional stress may also precipitate Raynaud’s
phenomenon
● Color changes are usually well demarcated and are
confined to the fingers or toes
RAYNAUD PHENOMENON
In ischemic phase, the following can be observed:
A. Blanching or pallor
B. Results from vasospasm of digital arteries
C. Capillaries and venules dilate
D. Sensation of cold or numbness or paresthesia of the
digits (it’s painful)
E. All of the above
E