Diseases of the Pericardium Flashcards

1
Q

2 layered sac which encircles the heart, separated by a thin film of fluid

A

Pericardium

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2
Q

Name the two layers of the pericardium

A

Inner layer - Visceral pericardium
Outer layer – parietal pericardium

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3
Q

The normal pericardial space contains how much fluid

A

15-50mL

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4
Q

What is the most common affliction of pericardium?

A

Pericarditis

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5
Q

What is the number one cause of pericarditis?

A

idiopathic

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6
Q

Inflammation of the layers

A

Pericarditis

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7
Q

What condition can be a complication of pericarditis?

A

Pericardial effusion

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8
Q

What is the most common infectious cause of acute pericarditis?

A

Viral/idiopathic

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9
Q

What is the most common pathogen of acute pericarditis?

A

Coxsackie virus

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10
Q

What type of pericarditis is described below?

Characterized by scant polymorphonuclear leukocytes, lymphocytes, and histiocytes

Exudate is thin fluid secreted by mesothelial cells lining the serosal surface of the pericardium

Likely represents early inflammatory response common to all types of acute pericarditis

A

Serous pericarditis

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11
Q

What type of pericarditis is described below?

Portions of visceral and parietal pericardium may become thickened and fused

Contains plasma proteins

A

Serofibrinous pericarditis

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12
Q

What type of pericarditis is described below?

Intense inflammatory response associated with bacterial infection

Serosal surfaces are erythematous and coated with purulent exudate

A

Suppurative (purulent) pericarditis

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13
Q

What type of pericarditis is described below?

Grossly blood form

Most often caused by TB or malignancy

A

Hemorrhage pericarditis

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14
Q

What is the most common type of pericarditis?

A

Serofibrinous pericarditis

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15
Q

Hemorrhage pericarditis is most often caused by?

A

TB or malignancy

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16
Q

What are the two most frequent symptoms in pericarditis?

A

Chest pain

Fever

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17
Q

Classic presentation of pericarditis - Triad

A

Pleuritic chest pain
Friction rub
EKG changes

18
Q

What condition’s chest pain features is described below?

Chest pain - Sharp, pleuritic

Worse lying flat

Better with sitting up/leaning forward

A

pericarditis

19
Q

What is abnormal in 90% of pericarditis cases?

A

EKG

20
Q

What are the characteristic EKG findings in pericarditis?

A

Diffuse ST segment elevation

PR segment depression

21
Q

Why should corticosteroids not be giving in pericarditis cases unless severe or complicated?

A

potentially severe side effects and because even gradual withdrawal of this form of therapy often leads to recurrent symptoms of pericarditis

22
Q

Which type of pericarditis has a high mortality rate?

A

Purulent pericarditis

23
Q

What are some complications of pericarditis?

A

Constrictive pericarditis
Pericardial effusion
Cardiac tamponade
Chronic pericarditis

24
Q

Results from pericardium becoming fibrosed and thickened

Restriction results in low-output failure – mimics restrictive
cardiomyopathy

A

Constrictive Pericarditis

25
Q

Constrictive Pericarditis most often follows what?

A

cardiac surgery

26
Q

What is diagnostic in Constrictive Pericarditis?

A

Cardiac catheterization

27
Q

Accumulation of excessive fluid in the pericardial space

A

Pericardial Effusion

28
Q

What is the pathophysiology of pericardial effusions?

A

When intrapericardial volume expands beyond a critical level

a dramatic increase in pressure is incited by nondistendable sac

29
Q

Why would you expect to hear soft heart sounds in a pericardial effusion?

A

Large pericardial fluid “insulates” heart from chest wall – trying to hear
through fluid

30
Q

What CXR findings would you expect to see in a pericardial effusion?

A

Enlarged cardiac silhouette - “water bottle heart”

31
Q

What characteristic EKG finding will you see in a pericardial effusion and also in cardiac tamponade?

A

Electrical alternams

32
Q

Pericardial fluid accumulates under high pressure, compresses
cardiac chambers, and severely limits filling of the heart

Can no longer accommodate normal venous return

Ventricular stroke volume and cardiac output decline, resulting in:
Hypotension
Shock
Death

A

Cardiac Tamponade

33
Q

What is the progression of cardiac tamponade if not identified and treated?

A

If not evacuated, effusion leads to inadequate perfusion of vital
organs 🡪 shock 🡪 and ultimately death

34
Q

What are the etiologies of cardiac tamponade?

A

Neoplastic
Post-viral
Uremic pericarditis
Acute hemorrhage (Trauma -penetrating)
Rupture of LV free wall following MI
Complication of dissection aortic aneurysm

35
Q

What is the most common etiology of cardiac tamponade?

A

Neoplastic

36
Q

What are the component’s of Beck’s triad?

A

Hypotension
JVD
Muffled heart tones

37
Q

What triad is seen in 10-20% of cardiac tamponade cases?

A

Beck’s triad

38
Q

What characteristic finding in cardiac tamponade is described below?

Can be recognized at bedside

Refers to a decrease of SBP (>10mm) during normal inspiration

Exaggeration of normal cardiac physiology

A

Pulsus paradoxus

39
Q

What procedure provides a definitive diagnostic of cardiac tamponade?

A

Cardiac catheterization

40
Q

Treatment for cardiac tamponade?

A

Pericardiocentesis