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Here is a quick mnemonic “CARDIAC HEART to remember about Duration and Character Of Heart Murmur

This can be valuable for patients as well as medical doctors, nurses & students doing their clinical rounds. You can also find it very useful for med exams like USMLE, NExT Medical Step 1&2, MBBS, NEET PG, INI-CET, FMGE,MCAT & NCLEX exams

Duration and Character Of Heart Murmur : How To Remember Easily ?

  • C – Character: The characteristics of a heart murmur depend on the pressure difference and the chambers or vessels involved.
  • A – Aorta and AR: The diastolic murmur of chronic aortic regurgitation (AR) is a blowing, high-frequency event.
  • R – Rumbling sound: The murmur of mitral stenosis (MS) is indicative of the left atrial-left ventricular diastolic pressure gradient and is heard as a low-frequency rumbling sound.
  • D – Duration: The duration of a heart murmur depends on the length of time over which a pressure difference exists between the cardiac chambers or vessels.
  • I – Intensity: The intensity of a heart murmur is determined by the magnitude and variability of the pressure difference and the geometry and compliance of the chambers or vessels involved.
  • A – Apex: The coarse systolic murmur of aortic stenosis (AS) may sound higher pitched and more acoustically pure at the apex.
  • C – Configuration: The configuration of a heart murmur may be described as crescendo, decrescendo, crescendo-decrescendo, or plateau.
  • H – Honking sound: Some murmurs, such as in mitral regurgitation (MR) due to mitral valve prolapse (MVP), may have a distinct or unusual “honking” sound.
  • E – Ejection: The crescendo-decrescendo configuration of the murmur of AS reflects the changes in the systolic pressure gradient as ejection occurs.
  • A – Atrium and Apex: The plateau configuration of the murmur of chronic MR is consistent with the large and nearly constant pressure difference between the left ventricle and the left atrium.
  • R – Right ventricle and pulmonary artery: The duration of a heart murmur depends on the pressure difference between the right ventricle and the pulmonary artery.
  • T – Turbulence: The degree of turbulence in the flow of blood determines the frequency, configuration, and intensity of the murmur.

Mnemonic :  CARDIAC HEART

Dr. Arin Nandi

Passionate About Medical Science & Helping Future Doctors Achieve Top Ranks In Medical Exams. He is professionally a dentist as well as a public health expert from JIPMER (1), (2)working in health department
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