Question

Difficulty: MediumCardiovascular System

A series of adult patients present for routine cardiovascular evaluation. For each described auscultatory profile and maneuver response, select the most appropriate underlying structural heart disease.

  • Late systolic murmur preceded by a mid-systolic click; the murmur becomes longer and moves closer to S1 with the Valsalva maneuver.Mitral valve prolapse
  • Harsh crescendo-decrescendo systolic murmur at the right upper sternal border with radiation to the carotids; decreases in intensity with handgrip.Aortic stenosis
  • High-pitched, early diastolic decrescendo murmur best heard at the left sternal border; increases in intensity when the patient leans forward.Aortic regurgitation
  • Holosystolic murmur at the left lower sternal border; increases in intensity with deep inspiration (Carvallo's sign).Tricuspid regurgitation

Answer

The clinical profiles match Mitral valve prolapse, Aortic stenosis, Aortic regurgitation, and Tricuspid regurgitation, respectively.
Each murmur's timing, specific location, and dynamic response perfectly aligns with the mechanical consequences of its corresponding structural heart disease.

Step-by-Step Solution

1
Evaluate the murmur with a mid-systolic click and response to Valsalva.
Matches Mitral valve prolapse.
Decreasing preload via Valsalva causes an earlier prolapse, leading to an earlier and longer murmur.
2
Evaluate the crescendo-decrescendo systolic murmur at the right upper sternal border.
Matches Aortic stenosis.
Radiation to the carotids and decreased intensity with increased afterload (handgrip) are classic distinguishing features.
3
Evaluate the early diastolic decrescendo murmur that worsens with leaning forward.
Matches Aortic regurgitation.
This anatomical positioning optimally aligns the aortic outflow tract with the chest wall to hear the regurgitant jet.
4
Evaluate the holosystolic murmur at the left lower sternal border that increases with inspiration.
Matches Tricuspid regurgitation.
Carvallo's sign (augmentation with inspiration) specifically identifies right-sided murmurs.

Key Concept

Clinical recognition and dynamic auscultation of valvular heart diseases.
Estimated Time:1m 30s
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