Peripheral artery disease (PAD) Flashcards
Peripheral artery disease (PAD)
- involves thickening of artery walls
* results in a progressive narrowing of the arteries of the upper and lower extremities
atherosclerosis
- a gradual thickening/hardening of the intima (the innermost layer of the arterial wall) and media (middle layer of the arterial wall).
- results from the deposit of cholesterol and lipids within the vessel walls and leads to progressive narrowing of the artery.
intermittent claudication
- cramplike pains in the calves caused by poor circulation of the blood to the leg muscles.
- pain you feel when your leg muscles don’t get enough blood while you exercise
Critical limb ischemia (CLI)
a severe blockage in the arteries of the lower extremities, which markedly reduces blood-flow
Note: Ischemia is a condition in which the blood flow (and thus oxygen) is restricted or reduced in a part of the body.
Raynaud’s phenomenon
aproblem that causes decreased blood flow to the fingers
Aneurysm
Loss of elasticity of media layer of arterial wall causing thinning and bulging of aortic wall
Aortic Dissection
Tear in intimal layer of arterial wall allows bleeding into the media layer and a pool or bulge of blood results
Leads to compression & occlusion of surrounding vessels and/or rupture
Acute Arterial Ischemia
- a sudden interruption in the arterial blood supply to a tissue, organ, or extremity
- if left untreated, can result in tissue death.
- caused by embolism, thrombosis of a pre-existing atherosclerotic artery, or trauma
- sudden loss of limb perfusion for up to 2 weeks after an inciting event
thrombus
a blood clot that forms in a vessel and remains there
Arterial Leg Ulcers
also referred to as ischemic ulcers, are caused by poor perfusion (delivery of nutrient-rich blood) to the lower extremities.
Typically toes, heels, bony prominences of the foot
“Punched out” well demarcated edges
Complication as a result in changes in circulation
Phlebitis
imflamation of vein
Venous thrombosis
blockage of a vein caused by a thrombus (blood clot).
Deep vein thrombosis (DVT, also called venous thrombosis) is a blood clot that develops in a vein deep in the body
involves the formation of a thrombus (blood clot) in association with inflammation of the vein.
• represents the spectrum of pathology from deep/superficial vein thrombosis (DVT) to pulmonary embolism (PE),
Varicose veins
- twisting veins caused by increased pressure.
- veins become enlarged, dilated, and overfilled with blood
- superficial veins that have dilated due to a weakness in the veins walls or from an injury to the vein.
Chronic venous insufficiency
occurs when your leg veins don’t allow blood to flow back up to your heart. When valves don’t work well, blood can also flow backwards. This can cause blood to collect (pool) in your legs.
• can lead to venous leg ulcers
venous leg ulcers
- also know as stasis ulcer
- From chronic venous insufficiency
- Often accompanied by stasis dermatitis & pruritus (itchy skin/skin irritatoin)
- Partial thickness
- Painful
- Extensive drainage
- Can lead to infection, cellulitis
- normally on ankle or between ankle/knee