Imagine you took your little one to the doctor for a routine checkup. If the doctor puts on a stethoscope and says, "There's a small sound coming from your baby's heart, a 'murmur'," wouldn't your heart flutter as a parent? It's normal for us to feel scared when we hear a heart sound. But don't worry. Not every heart sound, every 'murmur' is dangerous. Today we're talking about a very common and completely harmless condition called 'Still's Murmur.'
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Simply put, what is Still's Murmur?
Still's Murmur is a harmless, musical sound that is usually heard in the heart of healthy children between the ages of 3 and 6. It was first described in 1909 by Dr. George Frederick Still, a pediatrician. He described it as "a 'ting' sound, like a string on a musical instrument being pressed." Importantly, this sound is not caused by any heart disease, weakness, or congenital defect .
That's why doctors call this an 'innocent murmur'. That means it doesn't cause any harm to the child. In most cases, this sound goes away by the time the child reaches puberty.
Why is there such a noise? What is the reason?
To be honest, doctors still haven't found a 100% definitive cause for this, but there are a few main theories.
- Heart structure: The heart and blood vessels of young children are very flexible and elastic. As the heart beats and the blood flows rapidly, the delicate vibrations in these flexible tissues can create this musical sound. It's like the sound we make when we blow air over the top of an empty bottle.
- False Tendons: Some children may have extra, thin, fibrous tissue (false tendons) inside the left ventricle of the heart. Some believe that these vibrate as blood flows through them, causing the sound.
- Chordae vibration: This sound can also be caused by the vibration of the thin, thread-like fibers (chordae) attached to the heart valves as blood flows through them.
- Increased blood flow: When a child has a fever, or when they are running and playing and getting warm, their heart rate increases. Also, there are some changes in the blood flow in children with anemia. At such times, this 'murmur' can be heard more clearly as blood flows faster through the heart.
The important thing is that none of these causes are a malfunction or disease of the heart. These are just normal changes that can be seen in a healthy heart.
What are the characteristics of this murmur? How does the doctor recognize it?
The only symptom of this is that distinctive sound that the doctor hears with a stethoscope. As a parent, you don't hear this. The child doesn't feel any discomfort, pain, nausea, or chest pain. The child plays well, runs, jumps, eats, and drinks like other healthy children.
A doctor will distinguish a Still's Murmur from other dangerous murmurs based on these characteristics.
| Characteristic | Description |
|---|---|
| Sound quality | A musical, vibrating sound, like a delicate 'twang'. |
| Intensity of sound | A very soft sound. Only a doctor can hear it with a stethoscope. |
| Change with Posture | This is a very important feature. The sound is clearly audible when the baby is lying on its back. When the baby sits or stands, the sound becomes less pronounced, or disappears completely. |
| Location | The sound is heard mainly in the center of the chest, just to the left of the breastbone (sternum). This sound does not radiate to the armpits or back (no radiation). |
| Timing | This is heard when the heart contracts (pumps blood). This means it is a mid-systolic murmur. |
Does the child need treatment?
In short, no . Still's Murmur is not a disease, it is just a sound heard by a healthy heart. Therefore, it does not require any kind of medication, surgery, or other treatment .
The doctor only listens to this sound during the child's routine check-ups. See if it changes. Other than that, there is no need to impose any restrictions on the child. There is no obstacle for the child to play any game he likes, to run, jump, or participate in school sports. He can live a completely normal, healthy life .
Often, as a child grows older, the structure of their heart changes. At the same time, this murmur gradually decreases and disappears completely by the time they reach adolescence. Very rarely, if a person continues to have this murmur into adulthood, it does not cause any harm.
💡 Take-Home Message
- Still's Murmur is not a disease. It is just a harmless, musical sound heard by a healthy heart in young children.
- This is a very common condition among children between the ages of 3-6.
- There is no treatment required for this. There is no need to prohibit your child from playing, running, or doing anything.
- Most of the time, this sound disappears on its own as the child grows older.
- If your child's doctor tells you about a heart murmur, don't panic and listen carefully. If you still have any doubts or fears, talk to your doctor about it openly.
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