Examkin

Soru

Zorluk: KolayCardiovascular System

Match the following classic physical examination auscultation findings with the most likely underlying valvular pathology.

  • Harsh crescendo-decrescendo systolic murmur at the right second intercostal space, radiating to the carotid arteriesAortic stenosis
  • Blowing holosystolic murmur at the cardiac apex, radiating to the left axillaMitral regurgitation
  • High-pitched early diastolic decrescendo murmur at the left sternal border, loudest with the patient sitting up and leaning forwardAortic regurgitation
  • Low-pitched mid-diastolic rumbling murmur following a high-pitched opening snap, best heard at the apex in the left lateral decubitus positionMitral stenosis

Cevap

The correct matches are: 1) Aortic stenosis for the harsh crescendo-decrescendo systolic murmur; 2) Mitral regurgitation for the holosystolic apical murmur; 3) Aortic regurgitation for the early diastolic decrescendo murmur; and 4) Mitral stenosis for the mid-diastolic rumble with an opening snap.
Each classic murmur description perfectly aligns with the hemodynamic changes and anatomical location of its respective valvular lesion. Aortic stenosis restricts systolic outflow (crescendo-decrescendo, carotid radiation). Mitral regurgitation allows backflow during systole (holosystolic, axillary radiation). Aortic regurgitation allows backflow during early diastole (decrescendo, left sternal border). Mitral stenosis restricts diastolic inflow (opening snap, mid-diastolic rumble).

Adım Adım Çözüm

1
Analyze the timing of the murmur in the cardiac cycle (systole versus diastole).
Items 1 and 2 are systolic murmurs; Items 3 and 4 are diastolic murmurs.
Timing immediately separates aortic stenosis/mitral regurgitation from aortic regurgitation/mitral stenosis.
2
Determine the location of maximum intensity and the specific radiation pattern for the systolic murmurs.
The right upper sternal border with carotid radiation points to the aortic valve. The apex with axillary radiation points to the mitral valve.
Location and radiation isolate the specific valve involved in the systolic pathology.
3
Evaluate the unique acoustic characteristics of the diastolic murmurs.
An early decrescendo murmur at the left sternal border indicates aortic regurgitation, while an opening snap followed by a mid-diastolic rumble at the apex indicates mitral stenosis.
These pathognomonic acoustic features confirm the exact mechanism of the diastolic defects.

Anahtar Kavram

Pathognomonic auscultatory findings of major valvular heart diseases.
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Konular

Cardiovascular System

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