Aortic Stenosis (AS): What is the classic clinical triad, the characteristic physical exam pulse finding, and the murmur description?
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Key Findings:
- Classic Triad (SAD): Syncope, Angina, Dyspnea (survival drastically drops once symptoms appear without valve replacement).
- Pulse: Pulsus parvus et tardus (weak and delayed carotid pulse with slow upstroke).
- Murmur: Harsh, crescendo-decrescendo systolic ejection murmur heard best at the right 2nd intercostal space, radiating to the carotids.
- S2: Soft or paradoxical (reverse) splitting of S2.
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