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17 Cards in this Set
- Front
- Back
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What is the percussion wave?
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It's the tap that you feel on a pulse
Occurs near the peak of flow velocity and a late tidal wave |
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What is the tidal wave?
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Felt as a prolongation of the tap, occurring at the peak of aortic pressure
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What causes a slow rising pulse?
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Fixed LV outflow obstruction (aortic stenosis)
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What causes a rapidly rising pulse?
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LV volume overload (mitral regurg, VSD, increase in rate of pressure)
Elevated EDV LVH |
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What causes a small amplitude?
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Small effective SV
CHF Shock Restrictive cardiomyopathy Constrictive pericarditis Tamponade |
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What causes a large amplitude?
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Large SV
Decreased PR Lack of elasticity of great arteries Aortic insufficiency Fever Hyerthyroidism Pregnancy |
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What is pulsus alternans?
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Seen in severe CHF
LV --> alternation of LV systolic P and stroke volume |
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What is pulsus paradoxus?
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Regular pulse with gradual and cyclic variation in in amplitude of pulse, relatd to respiration
Fall > 10mmHg or when pulse completely disappears during inspiration |
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What pathological conditions --> pulsus paradoxus?
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Cardiac tamponade
Constrictive pericardiits SVC obstruction Anything w wide variation of intrapleural pressure |
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What is bisferiens pulse?
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Sharp upstroke followed by collapse and then a second systolic wave
"Spike and dome" configuration |
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When is bisferiens pulse seen?
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Significant aortic insufficiency
Aortic stenosis IHSS |
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What is anacrotic pulse?
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Being able to palpate the anacrotic notch
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What causes anacrotic pulse?
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Severe aortic stenosis
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What is a dicrotic pulse?
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Accentuation of dicrotic wave
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What causes dicrotic pulse?
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Good resilience of arterial wall
Decreased SV Fast HR Low or high SVR Fever |
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What can cause late P2?
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RBBB
PVC (L) Pulmonary HTN RV failure ASD Dilation VSD Pulmonary stenosis |
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What causes reveresed splitting with late A2?
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LBBB
PVC (R) Systolic HTN LBBB Ischemic heart disease PDA Aortic regurg Aortic stenosis Ischemic heart disease Severe aortic dilation |
