Pericardial Disease Flashcards
Physical exam of Chronic constrictive pericarditis
Normal to decreased BP
Positive Kussmaul’s sign
Pericardial knock (early diastolic sound confused with S3, opening snap)
Signs/symptoms of acute pericarditis
Central sternal/parasternal aching that radiates to L trapezius ridge (irritates central diaphragm), varies with respiration/position (better sitting up, leaning forward, exhalation)
- much the same as coronary ischemia
What tests can you use for chronic constrictuve pericarditis?
EKG (low voltage, non-specific T-wave changes, 1/3 afib)
CXR (small heart, clear lungs, 50% calcification)
Catheterization (equlibrium between RV/LV diastolic pressures)
CT/MRI (to visualize thickened pericardium)
Echocardiography
Signs/symptoms of pericardial effusion with cardiac tamponade
Dyspnea (on exertion), orthopnea, hypotensive symptoms
Physical exam of acute pericarditis
Pericardial rub [usually] with three components (systole, early + late diastole), best heard along left sternal border
Physical exam of pericardial effusion w cardiac tamponade
Tachypnea, Tachycardia
Paradoxical pulse (exaggeration of what is expected)
Elevated JVP, no Kussmaul’s sign (rise in JVP on inspiration)
Testing for acute pericarditis
EKG
WBC/ESR
CPK-MB
Echocardiogram
Imaging of pericardial effusion with cardiac tamponade
EKG: minimal value
CXR: may show enlarged silhouette, clear lung fields
Echocardiogram: best for detection of effusion, will show other changes, diagnostic of tamponade
Right heart catheterization: diagnostic + treatment
Findings on EKG of chronic constrictive pericarditis
Low voltage, non-specific T wave changes, 1/3 cases have a-fib
What is pericardial effusion with cardiac tamponade
accumulation of pericardial fluid sufficient to raise pericardial pressure –> compress heart, reduce output
What is key to diagnosis of constrictive pericarditis?
Cardiac catheterization shows equilibrium of left and right ventricular diastolic pressures
- -> Diastolic filling impaired in both ventricles
- —> Follow with CT/MRI to visualize thickened pericardium
History, symptoms of constrictive pericarditis
Right sided congestion:
can’t expand chambers, elevated filling pressures (JVP elevated, + Kussmaul’s), stroke volume compromised, back pressure on IVC –> liver, legs edema, ascites
abnormally large decrease (more than 10mm Hg) in systolic blood pressure and pulse wave amplitude during inspiration
Paradoxical pulse
Paradoxical rise in jugular venous pressure (JVP) on inspiration
Kussmaul’s sign
Pericarditis is a ________ presentation
chronic