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Difficulty: MediumCardiovascular System

Match the following clinical presentations and auscultatory findings with their most likely underlying structural or valvular pathology.

  • A 24-year-old woman with palpitations; auscultation shows a mid-systolic click and a late systolic murmur.Myxomatous degeneration of valve leaflets
  • A 65-year-old man with exertional syncope; auscultation shows a harsh, crescendo-decrescendo systolic murmur radiating to the carotids.Age-related calcific degeneration
  • A 40-year-old immigrant with dyspnea; auscultation shows a loud S1, an opening snap, and a mid-diastolic rumble.Rheumatic fever-induced leaflet thickening and commissural fusion
  • A 70-year-old man with bounding peripheral pulses; auscultation shows an early diastolic decrescendo murmur best heard at the left sternal border.Aortic root dilation or bicuspid valve causing retrograde blood flow
  • A 55-year-old man with acute pulmonary edema post-myocardial infarction; auscultation shows a new holosystolic apical murmur radiating to the axilla.Papillary muscle rupture leading to acute valvular incompetence

Answer

The correct matches align specific murmurs with their structural causes: mid-systolic click with myxomatous degeneration, crescendo-decrescendo murmur with calcific degeneration, opening snap with rheumatic thickening, early diastolic murmur with aortic root dilation, and post-MI holosystolic murmur with papillary muscle rupture.
Each auscultatory finding and clinical scenario is pathognomonic for a specific underlying valvular pathology. Proper matching relies on identifying the timing (systolic vs. diastolic) and the structural consequence (stenosis vs. regurgitation vs. prolapse).

Step-by-Step Solution

1
Analyze the first clinical presentation (mid-systolic click).
Identified as Mitral Valve Prolapse.
The mid-systolic click and late systolic murmur point directly to myxomatous degeneration of the mitral valve.
2
Analyze the second clinical presentation (crescendo-decrescendo).
Identified as Aortic Stenosis.
The harsh crescendo-decrescendo systolic murmur with carotid radiation and exertional syncope is classic for calcific degeneration of the aortic valve.
3
Analyze the third clinical presentation (opening snap).
Identified as Mitral Stenosis.
The opening snap and mid-diastolic rumble in a patient with a likely history of rheumatic fever points to leaflet thickening and commissural fusion.
4
Analyze the fourth clinical presentation (decrescendo with bounding pulses).
Identified as Aortic Regurgitation.
The early diastolic decrescendo murmur and bounding pulses are due to regurgitant flow from aortic root dilation or valvular abnormalities.
5
Analyze the fifth clinical presentation (post-MI holosystolic).
Identified as Acute Mitral Regurgitation.
A new holosystolic murmur with acute heart failure post-MI suggests a mechanical complication such as papillary muscle rupture.

Key Concept

Valvular Heart Disease Pathophysiology and Auscultation
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Topics

Cardiovascular System

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