Additional chord in the heart of the child: DHL, superfluous chord, chord of the left ventricle of the heart

  • May 23, 2018
  • What is
  • reasons
  • Types
  • Symptoms Diagnosis Treatment
  • Consequences
  • Opinion of Dr. Komarovsky

Discovered the child during routine inspections more chord causes most parents experience. But it's better not to panic, but to find out more about whether the extra chordochka is dangerous and how its presence can threaten the child's health.

Any anomaly in the development of the child, and the more his heart, cause anxiety and feelings of parents

What is

To better understand what constitutes a further chord, you need to remember about the anatomy of the heart and the peculiarities of its functioning. If this organ works normally, the blood moves in it from the atria to the ventricles. This movement is regulated by special valves, the opening of which is due to the reduction of located in the ventricles of thin tendons, called chords. When they are relaxed, the valve flaps are closed, and as soon as the chords contract, the valves

are stretched, their flaps open and blood passes into the ventricles.

While some parents think is normal in a child should be two chords in the heart and added a third chord in the heart of a child, in fact, the chords in the ventricles more, but normally they all have the same structure and the same thickness. If atypical chords are found among the tendons, attached to the wall of the ventricle only at one end, they are referred to as additional ones. Such formations do not participate in the opening of the valves, so they are also called false or anomalous.

What is the correct structure of the heart and how it should work ideally can be viewed in the next video.

Reasons for

The appearance of an extra chord occurs during the laying of the heart during the period of intrauterine development. The main cause of this deviation is called genetic predisposition. Most often, education is transmitted through the maternal line( in 90% of cases), but can also be transmitted from the father. Other factors provoking the appearance of excess chord are:

  • Smoking or drinking alcohol in the first trimester.
  • Poor environmental conditions.
  • Insufficient or unbalanced power.
  • Infections during pregnancy.
  • Stress in pregnant women.
  • Weak immunity of a future mother.


An additional chord can be detected in any ventricle, but in 95% of cases it is the chord of the left ventricle of the heart in a child, which is abbreviated as LHL. Only in 5% of toddlers with extra chord it is located in the right ventricle.

Anomaly is unique in 70% of detection, and in 30% of children additional chords are represented by multiple formations. In its direction, the extra chord is transverse, diagonal or longitudinal. If we take into account the localization inside the ventricle, then the chord is referred to the basal, middle or apical formations.

Additional chord can be either one or several

In addition, all chords are divided into 2 types:

  • Hemodynamically insignificant. Such formations are considered a variant of the norm, since they do not affect the blood flow. Most often these are single strands in the left ventricle.
  • Hemodynamically significant. Such chords affect the blood flow and can cause problems with the work of the heart.

Symptoms of

If there are chords in the left ventricle of the child in a single quantity, often there will be no manifestations. When the abnormality is located in the right ventricle or in the presence of multiple chords, the parents will notice such signs:

  • Rapid fatigue.
  • Frequent pulse.
  • Weakness.
  • Decreased endurance.
  • The appearance of dizziness.
  • Complaints of tingling in the heart.
  • Lability of the psychoemotional state.
  • Arrhythmias.
Children with an additional chord in the right ventricle get tired faster of their mental and physical activity

Note that a newborn with an extra chord often feels well and in most cases clinical symptoms appear in school or adolescence when a child grows very fast.


In most cases, an additional chord, like the LLC, is detected with a planned heart ultrasound. This examination is carried out every infants in 1 month. If a pediatrician hears noises in the baby's heart, he can direct the crumb to echocardiography before. To check the work of the heart with an additional chord, children are also prescribed an ECG, and in order to reveal hidden problems with rhythm, in the adolescence, bicycle ergometry and holter monitoring are conducted.

Children with an additional chord in the heart regularly prescribed ECG

Consequences of

For most babies, the presence of additional chords, especially if it is LVHD, poses no danger and does not interfere with life. Sometimes such formations "dissolve" themselves - the heart increases in size and the chord shifts, becoming inaccessible for visualization with ultrasound.

Some chords affect the bloodstream, can cause problems with heart function, for example, conduction disorders and arrhythmias. In rare cases, the chord without treatment leads to the appearance of ischemic stroke, endocarditis, thrombophlebitis and other pathologies.

If a chord in the heart is one of the symptoms of underdevelopment of connective tissue, such pathology will also appear tall, slim build, hypermobility of joints, bone deformities, problems in the digestive tract and kidneys.


Drug therapy is prescribed for children with an excess chord only in clinical manifestations of the problem, for example, if the child complains of unpleasant sensations in the chest. Also medicamentous treatment is necessarily prescribed for the detection of rhythm disturbances. In rare cases, when a false chord includes the conductive pathways of the heart, it is excised or destroyed by cold.

Children with additional chord seen by a cardiologist and undergo regular inspection

include medications that are prescribed in the additional chord contains B vitamins, potassium orotate, Magne B6, Panangin, magnerot, l-carnitine, aktovegin, ubiquinone, piracetam and others. They normalize metabolic processes in the tissues of the heart, improve impulse delivery and nourish the heart muscle.

In addition, a child with an extra chord is advised to provide:

  • Balanced diet.
  • Daily charge.
  • Frequent walks.
  • Hardening.
  • Minimum stress.
  • Optimal mode of the day.
  • Timely treatment of diseases.

These children are not allowed outdoor games and moderate exercise, such as swimming, gymnastics or jogging.

Opinion of Dr. Komarovsky

popular pediatrician confirms that an extra chord in my heart, especially the heart DHLZH a child - it is not dangerous in most cases. In his practice he had seen children who have found during ultrasound chord was merely a statement of fact, but any inconvenience and problems, it did not cause the child, but apparently did not show.

Komarovsky emphasizes that treatment for such children in most cases is not necessary and to change their lifestyle is not required. The only thing that the well-known doctor of parents warns about is that grown children with an additional chord should not work as divers or jump with a parachute.

On what to do with pain in the heart, see in the transfer of Dr. Komarovsky.