PVD Flashcards

1
Q

Unhealing lesion on extremity

A

chronic disease, with progressive decrease in blood flow

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2
Q

PVD typically involves the

A

Lower extremities

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3
Q

Pain w/ PVD occurs when

A

blood flow cannot keep up w/ O2 demand, pain w/ exercise

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4
Q

Claudication

A

cramping primarily in the calf muscles

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5
Q

Intermittent claudication

A

cramping, weakness, limb fatigue after exercise/standing/walking

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6
Q

What other Sx might be associated w/ PVD

A

Erectile dysfunction

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7
Q

Ankle Brachial Index

A

ratio of systolic BP at the ankle compared to the brachial a.

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8
Q

Normal Ankle Brachial Index

A

1.0-1.2

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9
Q

What is a pathological value for Ankle Brachial Index

A

< 0.9

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10
Q

CT andiography/MRA for PVD can determine

A

anatomic location of disease w/o invasive angiogram procedure, angiogram is reserved for concurrent intervention

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11
Q

Treatment for PVD - Management

A

smoking cessation, weight los, exercise

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12
Q

Treatment for PVD - Pharmaceutical

A

Phosphodiesterase inhibitors (Cilostazol) - relieves claudication

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13
Q

Treatment for PVD - Procedures

A

angioplasty/stenting

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14
Q

Treatment for PVD - Surgical Intervention

A

Bypass graft

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15
Q

Unilateral cold foot

A

small clot blocks off stenotic vessel - occlusive disease

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16
Q

Sx of Occlusive disease

A

worse claudication, skin breakdown, larger non-healing ulcers, gangrene, muscle atrophy, loss of hair on LEs, diminished pulses of LEs

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17
Q

ABI of Occlusive disease

A

< 0.5

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18
Q

Most common artery involved in LE PVD

A

superficial femoral a.

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19
Q

Treatment for PVD Occlusive Disease - Surgical Intervention

A

Bypass, Angioplasty/Stenting, Thromboendarterectomy

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20
Q

Dry Gangrene toe

A

chronic or acutely evolved

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21
Q

Wet Gangrene toe

A

Some blood supply + infection

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22
Q

Treatment for Gangrene toe

A

amputation, surgical procedures to open up blood supply, ABX prophylaxis

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23
Q

Buerger Disease (thromboangiitis obliterates)

A

severe distal extremity ischemia - tissue and limb loss

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24
Q

Patients w/ Buerger Disease

A

Young, male, cigarette smoker

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25
Charcteristics of Buerger Disease
segmental, , inflammatory, thrombotic process of distal arteries and arterioles Pain at rest, no claudication
26
DM, paradoxical Afib, sudden, sharp pain in her LLE, whole leg feels "asleep"
Acute Arterial Disease
27
Acute Arterial Disease
large embolic events almost always originate from the heart (AFib)
28
Sx in Acute Arterial Disease
Hx of claudication + acute sharp, sudden pain
29
Diagnosis of Acute Arterial Disease
dopplers, angiogram/MRA show abrupt cutoff of blood supply
30
Labs of Acute Arterial Disease pts may be
acidotic
31
Tx for Acute Arterial Disease
``` Immediate revascularization (irreversible if tx w/in 6hrs) - Heparin, TPA to clot if no neuro compromise ```
32
Why might sepsis ensue following revascularization in Acute Arterial Disease
Blood supply to dying tissue, if dying tissue has already began a bacterial process, spreads bacteria to remainder of body
33
Pancreatic cancer, weight loss, postprandial, abdominal pain, nausea -> pancreatic cancer is worrisome bc
pancreatic cancer is risk for clot/stroke
34
Cramping after eating in pt w/ pancreatic cancer
increases pressure in intraabdominal pressure, mesenteric claudication
35
Acute Mesenteric Vein Occlusion
Pancreatic cancer increases risk
36
Tx for Acute Mesenteric Vein Occlusion
Surgical revascularization, Thrombolytics
37
High cholesterol, HTN, Hx of MI, CHF, abdominal pain after eating may indicate
Acute intestinal ischemia, Chronic intestinal ischemia, ischemic colitis
38
Sx of Acute intestinal ischemia
periumbilical pain, epigastric discomfort, high WBC, lactic acidosis, hypotension, and distention
39
Sx of Chronic intestinal ischemia
Atherosclerosis, weight loss, anorexia
40
Sx of ischemic colitis
LLQ pain, tenderness, abd cramping, bloody stools
41
Imaging for suspected intestinal ischemia
CT or MRA shows narrowing of visceral vessels | Angiogram showing block
42
Colonoscopy in intestinal ischemia may show
segmental changes, often at the splenic flexure or rectosigmoid junction, perforation risk
43
Treatment for Acute intestinal ischemia
bypass, bowel resection
44
Treatment for Chronic intestinal ischemia
Angioplasty/Stenting is first line, bypass may be needed
45
Treatment for Ischemic colitis
rest, supportive care, blood pressure control
46
Abdominal pain radiating to back, pain worse w/ palpation, acute onset of pain and hypotension
ruptured AAA
47
AAA
Dilation of the infrarenal aorta is a normal part of aging
48
Aneursym is considered a diameter of
3cm
49
Normal diameter of abdominal aorta
2cm
50
Risk for rupture of AAA when diameter exceeds
5cm
51
Early Sx of AAA
midabdominal discomfort, increased pain w/ palpation
52
Late Sx of AAA
sharp pain, sudden escape of blood into the peritoneal space, hypotension, death
53
Treatment of AAA
elective repair when diameter > 5.5cm of increased >0.5cm in 6mo, or pain and tenderness Sx
54
Treatment of AAA rupture
if rupture is contained in the retroperitoneum, pt may survive until graft suture can occur
55
Crushing substernal chest pain, often death shortly after
Aortic Dissection
56
Aortic Dissection
spontaneous intimal tear develops and blood dissects into the media of the aorta creating a “false lumen”
57
Type A Aortic Dissection
involves the arch of the aorta proximal to the left subclavian artery
58
Type B Aortic Dissection
involves the proximal descending thoracic aorta, usually just beyond the left subclavian artery
59
Increased risks of dissection include:
Pregnancy, bicuspid aortic valve, coarctation of the aorta
60
Sx of Aortic Dissection
Severe, persistent chest pain radiating into the anterior chest and down the back, syncope, hemiplegia, paralysis
61
Aortic Dissection is typically associated w/
HTN
62
Pharmacological Treatment of Aortic Dissection
b-Blocker, Labetolol, Nitroprusside, morphine (lower BP)
63
Surgical Treatment of Aortic Dissection
Urgent surgery for ALL type A, and surgery for type B IF aortic branch compromise occurs or malperfusion is a concern