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Zorluk: KolayCardiovascular System

Match each classic cardiac auscultation finding to its most likely underlying valvular pathology.

  • Harsh systolic crescendo-decrescendo murmur at the right upper sternal border radiating to the carotidsAortic stenosis
  • Holosystolic, blowing murmur at the apex radiating to the axillaMitral regurgitation
  • Early diastolic decrescendo murmur at the left sternal border best heard with the patient leaning forwardAortic regurgitation
  • Mid-diastolic rumbling murmur with a preceding opening snap at the apexMitral stenosis

Cevap

The harsh systolic crescendo-decrescendo murmur matches Aortic stenosis; the holosystolic apical murmur matches Mitral regurgitation; the early diastolic decrescendo murmur matches Aortic regurgitation; and the mid-diastolic rumble with an opening snap matches Mitral stenosis.
Each valvular pathology has distinct auscultatory characteristics based on the affected valve's anatomical location and the timing of abnormal blood flow. Aortic stenosis presents as a systolic murmur radiating to the carotids. Mitral regurgitation creates a holosystolic apical murmur. Aortic regurgitation is characterized by an early diastolic decrescendo murmur, and mitral stenosis presents with a diastolic rumble and an opening snap.

Adım Adım Çözüm

1
Analyze the first auscultation finding: a harsh systolic crescendo-decrescendo murmur at the right upper sternal border with radiation to the carotids.
This is paired with Aortic stenosis.
The location (aortic area) and radiation (carotids) point to the aortic valve, and the systolic timing indicates stenosis during ventricular ejection.
2
Analyze the second finding: a holosystolic, blowing murmur at the apex radiating to the axilla.
This is paired with Mitral regurgitation.
The holosystolic nature indicates abnormal backward flow throughout systole. The apex is the best auscultation site for the mitral valve, and radiation to the axilla is classic.
3
Analyze the third finding: an early diastolic decrescendo murmur at the left sternal border, enhanced by leaning forward.
This is paired with Aortic regurgitation.
This murmur happens in diastole when blood leaks back from the aorta into the left ventricle. Leaning forward brings the aortic root closer to the chest wall.
4
Analyze the fourth finding: a mid-diastolic rumbling murmur with a preceding opening snap at the apex.
This is paired with Mitral stenosis.
The opening snap occurs when the stiff mitral valve abruptly opens, followed by a rumbling murmur as blood flows through the narrowed valve during diastole.

Anahtar Kavram

Identifying valvular heart diseases based on characteristic murmurs
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