Match each classic cardiovascular physical examination finding with the most likely underlying structural or valvular pathology.
- A mid-diastolic, low-pitched rumble with an opening snap; the time interval between aortic valve closure () and the opening snap () inversely correlates with obstruction severity.Rheumatic thickening and tethering of the left-sided atrioventricular valve leaflets
- A harsh crescendo-decrescendo systolic murmur at the left lower sternal border that intensifies during the strain phase of the Valsalva maneuver and softens with passive leg raise.Asymmetric septal hypertrophy with systolic anterior motion of the mitral valve leaflet
- A late-peaking systolic murmur at the right upper sternal border associated with a delayed, low-amplitude carotid upstroke; the murmur softens during sustained handgrip.Progressive calcific degeneration and restriction of the left-sided semilunar valve leaflets
- A high-pitched, blowing, early diastolic decrescendo murmur best heard along the left sternal border that increases in intensity with sudden squatting.Incomplete coaptation of the left-sided semilunar valve leaflets leading to retrograde diastolic blood flow
Cevap
Mitral stenosis matches with rheumatic tethering; HOCM matches with asymmetric septal hypertrophy and SAM; Aortic stenosis matches with calcific degeneration; Aortic regurgitation matches with incomplete semilunar coaptation.
Correct matching requires integrating physical examination findings (murmur timing, quality, and response to physiologic maneuvers) with their underlying anatomical pathology. Valsalva decreases preload, intensifying HOCM; handgrip increases afterload, softening AS; squatting increases afterload, intensifying AR; and a narrowed - interval indicates severe MS.
Adım Adım Çözüm
Anahtar Kavram
Dynamic auscultation and hemodynamic correlations of valvular and structural heart diseases.