Supraventricular scallop syndrome.

Supraventricular crest syndrome is usually considered not to be a separate disease, but rather an ECG (electrocardiogram) phenomenon, a special variant of the norm.

Doctors usually recommend that parents whose children have this syndrome not worry, as it does not develop into a heart defect.

Causes supraventricular scallop syndrome.

The supraventricular crest is one of the many muscle bundles that are located in the heart (between the anterior and posterior sections of the right ventricle). At the moment, the causes of supraventricular crest syndrome have not been found. As a rule, such a phenomenon is noticeable in children, but experienced pediatricians do not recommend worrying about this, especially if there are no heart murmurs or other phenomena.

[ 1 ], [ 2 ]

Pathogenesis

The electrocardiogram of a child differs significantly from the ECG of an adult. As a rule, the PQ and QT intervals may be shorter, the QRS is narrower, and sinus arrhythmia is sometimes noticeable. This can be explained by the fact that in childhood, the heart rate is higher than in adults. Sometimes, against this background, the doctor may notice the so-called supraventricular ridge syndrome.

Since it is not a pathology and is not considered as a separate disease, such a phenomenon usually remains unnoticed. Such a syndrome usually disappears over time, so it does not require treatment.

[ 3 ], [ 4 ], [ 5 ], [ 6 ]

Symptoms supraventricular scallop syndrome.

There are usually no external symptoms that could be seen with the naked eye. After an ECG, children under six years of age with supraventricular crest syndrome show:

1. Dominance of the right ventricle over the left.
2. The electrical axis of the heart deviates noticeably to the right.
3. The voltage of the ventricular complex teeth is greatly increased.
4. The chest wall is too thin.
5. Sometimes, up to 16 years of age, negative T waves can be seen in leads V1-V2.

First signs

Unfortunately, the first signs of supraventricular crest syndrome are absent. Sometimes the child may have an increased heart rate, a frequent feeling of fatigue, chest pain after intense physical exertion. In such cases, parents usually show the baby to the doctor, who conducts an electrocardiogram. Only with its help can changes in the ventricle be seen.

The supraventricular crest syndrome in adults is quite rare. This is due to the fact that the walls of the chest after 18 years are no longer as thin as in childhood. But in very rare cases, the ECG still shows the presence of such a syndrome. Do not worry. This phenomenon is a normal variant and is not considered a disease or pathology. Usually, with the right rhythm of life, this syndrome goes away on its own, without any intervention.

This phenomenon is much more common in children than in adults, since the chest wall is not yet sufficiently compacted. This phenomenon does not cause any unpleasant symptoms and does not require medication. As a rule, it either goes away on its own over time or develops into an incomplete bundle branch block, which is also not treated.

[ 7 ], [ 8 ], [ 9 ]

Complications and consequences

When speaking about the consequences of supraventricular crest syndrome, they only mean the possibility of this phenomenon developing into an incomplete bundle branch block. Usually, such a pathology does not cause concern on the part of doctors, therefore it does not require any specific method of treatment. Sometimes patients try to be observed by a professional from time to time to see the development of the pathology.

In very rare cases, incomplete bundle branch block, which sometimes develops from supraventricular crest syndrome, can become a progressive heart condition and cause complete cardioventricular block.

[ 10 ]

Diagnostics supraventricular scallop syndrome.

The only way to see abnormalities in the ventricle is to perform an electrocardiogram or ECG. This abbreviation is familiar to many, as it is often used for a variety of diseases. This method is based on recording the electrical activity of the heart.

There is no need to take tests when diagnosing supraventricular crest syndrome.

Instrumental diagnostics

The supraventricular crest syndrome can only be diagnosed with the help of an ECG. This is an accessible, simple and informative method that is carried out not only in hospitals, but also in small clinics or even ambulances. Simply put, an electrocardiogram is a dynamic recording of the electrical charge that makes our heart contract.

This is why an ECG can be used to see any changes in the functioning of the cardiovascular system.

[ 11 ], [ 12 ]

ECG signs

In early childhood, instability of the QRS amplitude is often noticeable in various leads of the heart. This phenomenon is called physiological alternans. It is explained by the lability of electrophysical processes that occur in the myocardium.

If a completely healthy child shows splitting of this complex in lead VI during an ECG, this phenomenon is called supraventricular crest syndrome. Interestingly, it is observed in 30% of children. It is especially often observed in children under six years of age.

On the ECG, this syndrome manifests itself precisely in lead VI, sometimes in the extreme right leads V3R and V5R. It is considered a deformation of the rSr' type of the QRS complex with a narrow and low-amplitude r' wave. Rarely, but it happens that the deformation has the appearance of jaggedness on the ascending knee of the S wave.

In other leads, such deformations are not noticeable. At the same time, the QRS duration is not considered a deviation from the norm. The phenomenon is due to the fact that the right hypertrophied supraventricular crest is excited. Sometimes the location of the heart in the chest plays an important role in the development of such a syndrome.

Sometimes supraventricular crest syndrome is diagnosed by other non-invasive electrocardiological methods. For example, electrocardiography is sometimes used. It is based on recording bioelectrical indicators of the heart.

[ 13 ]

Treatment supraventricular scallop syndrome.

Since this phenomenon is not a disease or pathology, it does not require treatment.

To improve your general condition, as well as better functioning of the cardiovascular system, you can take special vitamins:

• Vitrum Cardio Omega-3. A hypolipidemic drug that helps reduce the level of triglycerides, cholesterol and lipoproteins in the blood. If supraventricular crest syndrome is observed in adults, these vitamins can be taken. The active ingredient of the drug is polyunsaturated fatty acids. The drug helps support the cardiovascular system of the body and improve heart function.
• Antiox. This multivitamin contains: vitamin A, selenium, vitamin E, vitamin C. Please note that this is a fairly strong remedy, so it should not be taken for a long time.

Forecast

Usually, supraventricular crest syndrome goes away on its own, without any intervention from the outside. Even if it doesn’t, you can rest assured and continue living your life.

Sometimes (but in very rare cases) this syndrome develops into an incomplete block of the His bundles. This phenomenon is considered a minor disease that does not require treatment. It is almost impossible for it to develop into a complete block.

[ 14 ], [ 15 ], [ 16 ], [ 17 ], [ 18 ]