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Zorluk: KolayCardiovascular System

Match each underlying valvular pathology to its classic auscultatory finding.

  • Aortic stenosisHarsh, crescendo-decrescendo systolic murmur radiating to the carotids
  • Mitral regurgitationHolosystolic murmur heard best at the apex, radiating to the axilla
  • Mitral stenosisLow-pitched mid-diastolic rumble following an opening snap
  • Aortic regurgitationHigh-pitched, early diastolic blowing decrescendo murmur at the left sternal border

Cevap

Aortic stenosis matches with the crescendo-decrescendo systolic murmur; Mitral regurgitation matches with the holosystolic murmur radiating to the axilla; Mitral stenosis matches with the opening snap and diastolic rumble; Aortic regurgitation matches with the early diastolic blowing murmur.
Each valvular pathology produces a characteristic murmur based on the altered hemodynamics. Aortic stenosis creates a harsh systolic ejection murmur. Mitral regurgitation causes a holosystolic murmur due to continuous flow into the low-pressure left atrium. Mitral stenosis presents with an opening snap when the thickened valve opens, followed by a diastolic rumble. Aortic regurgitation causes a high-pitched early diastolic murmur as blood flows back into the ventricle.

Adım Adım Çözüm

1
Analyze the timing of the murmurs (systolic vs. diastolic).
Identify that Aortic Stenosis and Mitral Regurgitation cause systolic murmurs, while Mitral Stenosis and Aortic Regurgitation cause diastolic murmurs.
Timing is the first step in categorizing valvular lesions.
2
Differentiate the systolic murmurs based on character and radiation.
Aortic stenosis is a crescendo-decrescendo murmur radiating to the carotids, whereas mitral regurgitation is holosystolic radiating to the axilla.
Specific acoustic characteristics and radiation patterns distinguish the different systolic lesions.
3
Differentiate the diastolic murmurs based on character and associated sounds.
Mitral stenosis has an opening snap and a rumble, while aortic regurgitation has an early diastolic blowing decrescendo quality.
Associated findings like an opening snap are highly specific for certain conditions.

Anahtar Kavram

Auscultatory characteristics of major valvular heart diseases
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Cardiovascular System

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