Functional murmur: Difference between revisions

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'''Functional murmur''' is a type of [[heart murmur]] that is primarily caused by blood flow through the heart and blood vessels. Unlike [[pathological murmurs]], functional murmurs are not associated with any underlying heart disease or condition. They are also referred to as innocent, physiological, or benign murmurs.
== Functional Murmur ==


== Causes ==
A '''functional murmur''' is a type of heart murmur that is primarily benign and not associated with any structural heart disease. These murmurs are often found in children and young adults and are usually detected during routine physical examinations. Unlike pathological murmurs, functional murmurs do not indicate any underlying heart condition and are generally considered harmless.
Functional murmurs are typically caused by increased blood flow through the heart. This can occur due to a variety of reasons, including [[exercise]], [[pregnancy]], [[fever]], and [[anemia]]. In children, functional murmurs are often due to the normal growth and development of the heart.


== Symptoms ==
[[File:FunctionalHeartMurmurFemale1.wav|Functional murmur|thumb|right]]
Functional murmurs are usually asymptomatic, meaning they do not cause any symptoms. They are often discovered during a routine [[physical examination]] when a doctor listens to the heart with a [[stethoscope]].
 
== Characteristics ==
 
Functional murmurs are typically soft, short, and systolic in nature. They are often described as "innocent" or "physiological" murmurs. These murmurs are usually heard best at the left sternal border or the second to fourth intercostal spaces. They may vary with changes in body position, such as standing or lying down, and can be influenced by factors like fever, anemia, or hyperthyroidism, which increase cardiac output.
 
=== Types of Functional Murmurs ===
 
There are several types of functional murmurs, including:
 
* '''Still's murmur''': A common innocent murmur in children, characterized by a musical or vibratory quality.
* '''Venous hum''': A continuous murmur heard over the jugular veins, often in children.
* '''Pulmonary flow murmur''': A soft systolic ejection murmur heard over the pulmonary area, common in adolescents and young adults.


== Diagnosis ==
== Diagnosis ==
The diagnosis of a functional murmur is typically made based on a person's medical history and a physical examination. Additional tests, such as an [[echocardiogram]], may be performed to confirm the diagnosis and rule out any underlying heart conditions.


== Treatment ==
The diagnosis of a functional murmur is primarily clinical, based on the characteristics of the murmur and the absence of symptoms or signs of heart disease. A thorough physical examination is essential, and in some cases, an [[echocardiogram]] may be performed to rule out structural heart abnormalities. However, in the case of a typical functional murmur, further testing is often unnecessary.
Since functional murmurs are not caused by any heart disease or condition, they do not require any specific treatment. However, it is important for individuals with a functional murmur to have regular check-ups to monitor their heart health.
 
== Management ==
 
Functional murmurs do not require treatment, as they are not associated with any health risks. Patients with functional murmurs can lead normal, active lives without restrictions. Regular follow-up is not typically needed unless new symptoms develop or the murmur changes in character.
 
[[File:FunctionalHeartMurmurFemale1.wav|Functional Heart Murmur Female 1|thumb|left]]
 
== Related Pages ==


== See also ==
* [[Heart murmur]]
* [[Heart murmur]]
* [[Pathological murmur]]
* [[Echocardiography]]
* [[Echocardiogram]]
* [[Cardiac auscultation]]
 
== See Also ==


== References ==
* [[Innocent murmur]]
<references />
* [[Pediatric cardiology]]


{{stub}}
{{Heart diseases}}


[[Category:Cardiology]]
[[Category:Cardiology]]
[[Category:Medical terminology]]
[[Category:Heart diseases]]
[[Category:Symptoms and signs]]
[[Category:Pediatrics]]
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File:FunctionalHeartMurmurFemale1.wav|Functional murmur
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File:FunctionalHeartMurmurFemale1.wav|Functional Heart Murmur Female 1
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Latest revision as of 18:51, 23 March 2025

Functional Murmur[edit]

A functional murmur is a type of heart murmur that is primarily benign and not associated with any structural heart disease. These murmurs are often found in children and young adults and are usually detected during routine physical examinations. Unlike pathological murmurs, functional murmurs do not indicate any underlying heart condition and are generally considered harmless.

File:FunctionalHeartMurmurFemale1.wav

Characteristics[edit]

Functional murmurs are typically soft, short, and systolic in nature. They are often described as "innocent" or "physiological" murmurs. These murmurs are usually heard best at the left sternal border or the second to fourth intercostal spaces. They may vary with changes in body position, such as standing or lying down, and can be influenced by factors like fever, anemia, or hyperthyroidism, which increase cardiac output.

Types of Functional Murmurs[edit]

There are several types of functional murmurs, including:

  • Still's murmur: A common innocent murmur in children, characterized by a musical or vibratory quality.
  • Venous hum: A continuous murmur heard over the jugular veins, often in children.
  • Pulmonary flow murmur: A soft systolic ejection murmur heard over the pulmonary area, common in adolescents and young adults.

Diagnosis[edit]

The diagnosis of a functional murmur is primarily clinical, based on the characteristics of the murmur and the absence of symptoms or signs of heart disease. A thorough physical examination is essential, and in some cases, an echocardiogram may be performed to rule out structural heart abnormalities. However, in the case of a typical functional murmur, further testing is often unnecessary.

Management[edit]

Functional murmurs do not require treatment, as they are not associated with any health risks. Patients with functional murmurs can lead normal, active lives without restrictions. Regular follow-up is not typically needed unless new symptoms develop or the murmur changes in character.

File:FunctionalHeartMurmurFemale1.wav

Related Pages[edit]

See Also[edit]