Systolic heart murmur
Systolic Heart Murmur[edit | edit source]
Introduction[edit | edit source]
A systolic heart murmur is a specific type of heart murmur that occurs during the systolic phase of the cardiac cycle, particularly when the ventricles contract and eject blood through the open semilunar valves.
Definition and Characteristics[edit | edit source]
Systolic murmurs are heard between the first and second heart sounds, coinciding with ventricular contraction. They can be further classified based on their timing within systole (e.g., early, mid, late, or holosystolic).
Types of Systolic Murmurs[edit | edit source]
Ejection Murmurs[edit | edit source]
- Occur when blood is ejected through the semilunar (aortic and pulmonary) valves.
- Often associated with valvular heart diseases like aortic or pulmonary stenosis.
Regurgitant Murmurs[edit | edit source]
- Occur due to backward flow through incompetent valves, such as mitral or tricuspid regurgitation.
Causes[edit | edit source]
Common causes of systolic murmurs include:
- Aortic Stenosis: Narrowing of the aortic valve, leading to an ejection murmur.
- Mitral Regurgitation: Improper closure of the mitral valve, causing a regurgitant murmur.
- Hypertrophic Cardiomyopathy: Thickened heart muscle impeding blood flow.
Diagnosis[edit | edit source]
Diagnosing a systolic heart murmur involves:
- Physical Examination: Listening to heart sounds with a stethoscope.
- Echocardiography: Imaging to assess heart valve function and structure.
- Cardiac Catheterization: In some cases, to measure pressures and assess valve function.
Treatment and Management[edit | edit source]
Treatment depends on the underlying cause and may range from monitoring to medication or surgical intervention for significant valve disease.
Living with a Heart Murmur[edit | edit source]
Regular medical follow-up and lifestyle modifications are important for managing the underlying condition causing the murmur.
External Links[edit | edit source]
- [Link to a cardiology resource on heart murmurs and valvular heart disease]
- [Link to a patient education portal on managing heart conditions]
References[edit | edit source]
| Systolic heart murmur Resources | |
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