The main types of neurological pathology in children of the first year of life


Causes of primary tics

Primary muscle dyskinesia is an independent deviation in the functioning of the nervous system. It appears after stress, fear (death of a loved one, divorce, car accident). Involuntary movements also occur in children whose parents often scream, swear, or abuse alcohol.

Spontaneous motor activity appears in every tenth first-grader. Many kids find it difficult to cope with the school load. In addition, during this period, parents tighten their demands, more often show dissatisfaction, and punish for bad grades and behavior. Nervous contractions also occur when moving to another city or going to a new school.

Hereditary predisposition is a common cause of nervous tics in children.

Muscle dyskinesia appears in babies whose diet lacks foods rich in magnesium and potassium. The first signs of a lack of these substances are night cramps. If parents do not change the diet of their son/daughter, muscle contractions also occur during the daytime. According to Komarovsky, the situation is aggravated by the consumption of caffeinated drinks.

Nervous vocal tics (whistles, coughing, whispering certain words or phrases) often indicate excessive mental and mental stress. They appear in children whose parents demand excellent grades in school and high results in sports and creative competitions.

The main types of neurological pathology in children of the first year of life

To identify diseases of the nervous system, manifested by a specific delay in psychomotor development, it is important to assess the neurological and psychopathological signs accompanying the developmental delay. The age-related immaturity of the nervous system of a child in the first year of life determines the fragmentation and undifferentiation of the signs observed in him. The body, especially a newborn and infant, reacts to various hazards with a limited number of typical reactions, the nature of which primarily depends on the age phase of neuropsychic development. Below are the main options, reflecting mainly the type of neuropsychic reaction in the first year of life.

  • GENERAL INSPECTION OF A NEWBORN - WHAT PARENTS SHOULD PAY ATTENTION TO
  • PERINATAL BRAIN DEPRESSION (NERVOUS HYPOEXCITABILITY)
  • PERINATAL BRAIN HYPEREXCITABILITY
  • INTRACRANIAL PRESSURE REGULATION DISORDER (HYPERTENSION-HYDROCEPHAL SYNDROME)
  • CONVIVUS SYNDROME
  • CEREBRASTHENIC SYNDROME
  • MOVEMENT DISORDER SYNDROMES (MUSCULAR DYSTONIA, Cerebral Palsy)

General examination of a newborn - what parents should pay attention to

Considering the high incidence of perinatal pathology of the nervous system and the possible difficulties of obtaining qualified specialized care, there is no doubt that there is an urgent need for parents to receive relevant popular scientific information.

What can we see for ourselves? - General examination of the newborn The child normally breathes rhythmically, makes automatic movements of the limbs in sufficient volume and symmetrically. The slightest restrictions in movement in the arms or legs should be the basis for a targeted study - are there any movement disorders? The nature and volume of the baby's crying is important. The posture of a newborn can tell a lot. In some cases, the child is lethargic, inactive, and sometimes literally lying flat. In other cases, on the contrary, the tone in the limbs is evenly increased - when swaddling, the peculiar stiffness of the limbs immediately attracts attention. It is very important not to miss even small convulsive twitches during examination.

Examination of a newborn's head reveals a lot. A birth tumor is typical for most newborns. The larger the size of this tumor, the more difficult the birth of the child was, and such a child should be the subject of a particularly careful examination. Some children notice bruises on the face, neck, and torso as a result of a traumatic birth - in these cases, neurological symptoms are also more often detected. Head deformations (the so-called “configuration”) almost always indicate a birth injury to the skull, and among these children craniocerebral symptoms are much more common, which is understandable and easily explainable. In everyday practice, cephalohematoma is sometimes underestimated, usually only because it is “common” and “located outside the skull.” Indeed, we are talking about a subperiosteal hematoma, sometimes quite significant in size. It is indeed common, but this cannot serve as an argument against it - it is an injury, and what is important for the diagnosis is not even the cephalohematoma itself, but what it indicates - at the level of such a hematoma, there are undoubtedly areas of microhemorrhages in the underlying areas of the brain , which, regardless of the patient’s age, indicate cerebral contusion. One of the important indicators of difficulties with childbirth is such a sign as the location of the skull bones on top of each other. This small dislocation usually does not lead to damage to the underlying brain tissue, but it certainly indicates that the fetal skull passed through the birth canal, experiencing great resistance - in these cases, signs of damage to the nervous system are often revealed.

The condition of the fontanelles plays a major role in assessing the child’s condition: tension and bulging of the fontanelles is a very serious symptom of increased intracranial pressure. The size of a newborn's head tells the doctor a lot: signs of hydrocephalus, if detected from the first days of life, usually indicate intrauterine brain pathology, while the gradual development of hydrocephalus can often be a consequence of birth damage to the brain.

Here it should be noted the catastrophic frequency of the unjustifiably expanded diagnosis of “hypertensive-hydrocephalic syndrome”, which in many hospitals and clinics is made with or without reason. The worst thing is that in such cases, massive and long-term therapy with diacarb immediately begins, which is not only unjustified, but exhausting for the child.

In some newborns, the head is smaller than normal, and the brain part of the skull is smaller than the facial part - sometimes this indicates intrauterine and genetic pathology (microcephaly) and, unfortunately, has serious consequences. Recently, more and more often there are children with very early closure of the fontanelle, while the growth rate of the head in such newborns clearly lags behind the norm.

The sign of a “short neck” is quite common, and it is usually very demonstrative and striking. It seems that the child's neck is very short (although there is no anatomical defect), the head seems to be located directly on the shoulders. With age, the degree of these manifestations gradually decreases. In these same children, attention is drawn to the severity of the transverse folds on the neck with persistent weeping in the area of ​​these folds. It can be assumed that the symptom of a short neck occurs as a result of overextension of the neck during difficult childbirth, followed by a reflex contraction of the neck like the “accordion phenomenon”. Later, it is these children who develop another very important sign - a sharp protective tension in the cervical-occipital muscles.

Assessing the condition of the abdominal wall is very important. It is known that many newborns have a flabby, flat stomach, and in these cases it is impossible to exclude a violation of the contractility of the abdominal muscles as a result of birth injuries to the thoracic spinal cord. This is especially demonstrative when the lesion is predominantly unilaterally localized - the “weak” half of the abdominal wall protrudes slightly, the navel moves when screaming. With a bilateral lesion, it is more difficult to judge. The following test can be useful: if such a newborn cry is weak, then when the doctor’s hand presses on the child’s stomach, the voice becomes much louder.

Priapism, a spontaneous erection of the penis in a newborn, should be considered equally unfavorable. Pediatricians often encounter this sign, but do not know how to interpret it. At the same time, in adult neurology, this symptom is well known and indicates significant spinal pathology.

We tried to consider some possibilities for a general examination of a newborn to look for signs that would suggest one or another neurological pathology. Each of the above signs cannot be considered conclusive, but taken together they acquire great diagnostic meaning. In any case, only a doctor specializing in neonatal neurology can resolve your doubts.

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Perinatal cerebral depression (nervous hypoexcitability)

Low motor and mental activity of the child, which is always below his motor and intellectual capabilities; high threshold and long delayed period for the occurrence of all reflex and voluntary reactions. Depression is often combined with low muscle tension and reflexes, slow switching of nervous processes, emotional lethargy, decreased motivation and weakness of volitional efforts.

Hypoexcitability can be expressed to varying degrees and manifest itself either episodically or persistently. The episodic occurrence of the syndrome is characteristic of somatic diseases, especially pathologies of the gastrointestinal tract, accompanied by malnutrition. Sometimes mild but persistent manifestations of the syndrome may be due to the type of higher nervous activity. The predominance of cerebral depression in the first months of life is observed in cases of prematurity, in children who have suffered oxygen starvation, or intracranial birth trauma. Severe and persistent depression is often accompanied by delayed psychomotor development, which acquires some characteristic features.

Delayed psychomotor development in hypodynamic syndrome is characterized by a delayed formation of all conditioned reflexes. During the neonatal period and in the first months of life, this manifests itself in a lag in the development of the conditioned reflex during feeding; subsequently, the development of all food conditioned reflexes is delayed (reflex to the position of feeding, the appearance of a breast or a bottle of milk, etc.), the development of food, and then visual and auditory dominance and sensitive local reactions is delayed. Particularly characteristic is the delay in the development of chain motor combined reflexes, which most clearly begins to manifest itself from the second half of life! Such a child at the age of 6-8 months does not pat a blanket or toy with his hand, does not knock an object against an object, does not repeatedly throw out an object by the end of the year, does not put an object into an object. This is also manifested in vocal reactions: the child rarely repeats sounds and syllables, i.e., performing single movements and pronouncing individual sounds, he does not strive to repeat them. As a result of the delay in the formation of conditioned reflexes on the combination of a word with an object or action in both a specific and non-specific situation, the initial understanding of speech and submission to verbal commands in these children occurs at a later date. At the same time, a lag in such functions as object-manipulative activity, crawling, babbling, speech understanding, and one’s own speech is formed.

In the case of hypoexcitability, the formation of positive emotional reactions is noted at a later date. This manifests itself both when communicating with an adult and in the spontaneous behavior of a child. During the newborn period, when communicating with an adult, such children usually lack oral attention; at the age of 2 months, the reaction of joyful animation at the sight of an adult and a gentle voice is not expressed or is weakly expressed. Often, instead of facial expressions of animation, you can only see a reaction of concentration in a child. A smile appears after 8-9 weeks; its appearance requires a complex of stimuli, including proprioceptive ones, and their repetition; the latent period of a smile in response to a stimulus is extended.

While awake, the child remains lethargic and passive; indicative reactions occur mainly to strong stimuli. The reaction to novelty is sluggish and in most cases has the character of passive amazement, when a child with wide open eyes remains motionless at the sight of a new object, without making active attempts to approach it or grab it. The longer the period of absence of active wakefulness and indicative-exploratory behavior, the more pronounced the lag in psychomotor development.

The revival complex, one of the main manifestations of active forms of emotional behavior in a child in the first months of life, is either absent with hypoexcitability or manifests itself in a rudimentary form: a weak facial reaction without sparkle in the eyes and vocal reactions, or the absence of a motor component, clear vegetative manifestations. Active negative emotional reactions are also weakly expressed and have almost no effect on the child’s general behavior.

Features of the emotional sphere determine the secondary underdevelopment of intonation expressiveness of vocal reactions, as well as the specifics of the formation of sensory functions. Thus, at the second age stage, a hypoexcitable child usually fixes and tracks an object well, but the movements of his eyeballs following a moving object do not begin immediately, but after a certain latent period, as is typical for a newborn: the eyes seem to constantly catch up with the object moving in the field. view subject. These visual reactions are variable, and their occurrence often requires special optimal conditions: a certain state of the child, sufficient strength and duration of the stimulus, etc. In the second age period, these reactions most clearly and often occur not in a supine position, but in a vertical position. position in the arms of an adult. A feature of visual perception with hypoexcitability at this age stage is also that the child spontaneously almost does not examine surrounding objects, he does not actively search for a stimulus. A hypoexcitable child usually turns his head and eyes towards an invisible sound source after repeated repetition and a long latency period; auditory perception, like visual perception, usually does not acquire a dominant character.

Delayed psychomotor development in hypoexcitability syndrome is characterized by developmental disproportion, which manifests itself in all forms of sensory-motor behavior. Thus, with sufficient development of differentiated emotional reactions to “friends” and “strangers,” the child shows active joy in communicating with friends and protest in communicating with strangers, i.e., at the age stages, insufficient communication activity remains pronounced. Along with the timely development of individual sensory functions, there is a lag in the formation of intersensory connections, especially in the tactile-kinesthetic analyzer system, so hypoexcitable children later begin to examine and suck their hands, feel toys, and their hand-eye coordination is formed with a delay. The lack of active exploratory behavior is expressed in the disproportionality of the development of visual perception. Therefore, with sufficient development of differentiated visual perception in a child, the automatic nature of object tracking can be maintained.

With a dynamic quantitative assessment of age-related development, a child with hypoexcitability syndrome loses 7-9 points at different periods, with the maximum loss observed at the age of 4-5 months, when normally the first intersensory connections and active forms of behavior should be actively formed.

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Perinatal cerebral hyperexcitability

Motor restlessness, emotional instability, sleep disturbance, increased innate reflexes, increased reflex excitability, a tendency to pathological movements, often in combination with a reduced threshold of convulsive readiness. Hyperexcitability is not causally specific and can be observed in children with perinatal pathology, some hereditary enzymopathies and other metabolic disorders, congenital childhood nervousness and minimal brain dysfunction. These children may not have a pronounced lag in psychomotor development, but with a thorough examination it is usually possible to note some mild deviations.

Disorders of psychomotor development in hyperexcitability syndrome are characterized by a lag in the formation of voluntary attention, differentiated motor and mental reactions, which gives psychomotor development a peculiar unevenness. By the end of the first year of life, such children usually have well-expressed cognitive interest in the environment and active forms of communication, and at the same time, with strong emotions, a general complex of revival with diffuse motor reactions may appear.

All motor, sensory and emotional reactions to external stimuli in a hyperexcitable child arise quickly, after a short latent period, and fade away just as quickly. Having mastered certain motor skills, children constantly move, change positions, constantly reach for and grab objects. At the same time, manipulative research activities, imitative games and gestures are poorly expressed. Children usually show a keen interest in their surroundings, but increased emotional lability often makes it difficult for them to communicate with others. Many of them have a long-term reaction of fear when communicating with unfamiliar adults with active reactions of protest. Typically, hyperexcitability syndrome is combined with increased mental exhaustion. When assessing the age-related development of a hyperexcitable child, they are usually classified not as a delay group, but as a “risk group” if hyperexcitability is not combined with other neurological disorders.

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Postpartum intracranial pressure regulation disorder

Hypertensive-hydrocephalic syndrome

Increased and unstable intracranial pressure in young children is often combined with hydrocephalic manifestations, which are characterized by the expansion of certain intracerebral spaces as a result of the accumulation of excess amounts of cerebrospinal fluid. Increased intracranial pressure in newborns and infants can be transient or permanent, hydrocephalus can be compensated or subcompensated, which, along with the anatomical and physiological characteristics of early age, determines a wide range of clinical manifestations.

In most cases, with hypertensive-hydrocephalic syndrome, there is an increase in the size of the head, which is determined by dynamically measuring its circumference and comparing it with the dynamics of height and body weight. An increase in head circumference that exceeds normal by more than 2 sigma deviations is considered pathological. As the head circumference increases, a disproportion between the cerebral and facial skulls is revealed. Enlargement of the skull can be asymmetrical due to a unilateral pathological process or a defect in child care.

An increase in intracranial pressure in infants is also accompanied by a divergence of cranial sutures, which can be determined by palpation and x-ray examination. Dehiscence of the sutures occurs quickly with progressive hydrocephalus and more slowly when intracranial pressure is mildly increased or has stabilized. When percussing the skull o.

Another sign of increased intracranial pressure is bulging and enlargement of the large fontanel. With severe hydrocephalic syndrome, the small and lateral fontanelles may be open. It should, however, be borne in mind that changes in cranial sutures and fontanels are detected only at a certain stage of development of the pathological process, therefore their absence during a single examination cannot be regarded as evidence against the presence of hypertensive-hydrocephalic syndrome.

With increased intracranial pressure in newborns and infants, the venous network of the scalp expands and the skin on the temples becomes thinner.

Neurological symptoms in hypertensive-hydrocephalic syndrome depend both on the severity of the syndrome and its progression, and on the brain changes that caused it. First of all, the behavior of children changes. They become easily excitable, irritable, the cry is sharp, shrill, sleep is superficial, children often wake up. This complex of signs is more typical for the predominance of hypertension syndrome. With hydrocephalic syndrome, on the contrary, children are drowsy in most cases. Decreased appetite, regurgitation, and vomiting lead to a decrease in body weight. Damage to the cranial nerves is manifested by the “setting sun” symptom, convergent strabismus, and horizontal nystagmus.

Muscle tone changes depending on the severity of intracranial hypertension and the course of the disease. In the first months of life, with increased intracranial pressure, especially if it is accompanied by hyperexcitability and the volume of the skull is not increased, muscle tone is often increased, tendon reflexes are high, with an expanded zone, and foot clonus is sometimes observed. In hydrocephalic syndrome with moderate intracranial hypertension, muscle hypotonia is initially observed. If hydrocephalus progresses, you can later notice an increase in muscle tone, first in the legs. This is due to the stretching of the pyramidal fibers of the parasagittal region due to the enlargement of the ventricles of the brain.

In newborns and infants with hypertensive-hydrocephalic syndrome, hand tremor is often pronounced. It can be frequent, small-scale or rare, large-scale, such as hemibalism. Seizures are observed much less frequently; they usually occur with a rapid increase in intracranial hypertension.

Changes in the fundus of the eye in young children do not necessarily develop due to the possibility of an increase in the volume of the skull due to divergence of the cranial sutures. However, in some cases, one can detect dilation of the veins, blurring of the boundaries of the optic nerve nipple, and later, with the progression of hydrocephalus, its swelling and atrophy.

Determination of cerebrospinal fluid pressure during lumbar puncture, which is normally 50-100 mmH2O in newborns, is important for diagnosing hypertension syndrome. Art., for breastfeeding - 60-150 mm of water. Art. With hypertension syndrome, cerebrospinal fluid pressure in infants can increase to 200-3Q mm of water. Art. and higher. The composition of the cerebrospinal fluid in hypertensive-hydrocephalic syndrome depends on the characteristics of the pathological process as a result of which it arose, the nature of the course of the syndrome, and the stage of its development. More often, a normal composition of the cerebrospinal fluid is observed, but there may be protein-cell or cell-protein dissociation.

Along with clinical, ophthalmological and liquorological data, the following are important for the diagnosis of hypertensive-hydrocephalic syndrome: transillumination of the skull, EchoEG, craniography, computed tomography.

The transillumination method is safe, it can be performed repeatedly and on an outpatient basis. The principle of the method is to propagate light rays in a space filled with liquid. Normally, in newborn infants, a ring of luminescence with a width of 0.5 to 3 cm appears around the tube with a light source, depending on the density of the bones of the skull. The most intense glow is observed in the frontal regions (up to 3 cm), the least in the occipital region (0.5-1 cm). An increase in the boundaries of the luminescence occurs when the subarachnoid space expands to 0.5 cm. Transillumination of the cavities of intracerebral tissue or ventricles is possible only when the thickness of the brain tissue is less than 1 cm.

In children with external and internal hydrocephalus, a symmetrical glow is detected. Asymmetrical luminescence occurs with unilateral expansion of the ventricle and suoarachnoid space.

On EchoEG with hydrocephalus, an increase in the number of reflected echo signals, ventricular index (normal 1.9) and amplitude of echo pulsations is recorded. In the case of asymmetric enlargement of the ventricular system, the m-exo is displaced in the direction opposite to the enlarged ventricle.

In infants with a slight increase in intracranial pressure without dehiscence of cranial sutures, craniography does not provide sufficient information for diagnosis. At the same time, it is the craniogram that can provide objective evidence of increased intracranial pressure. With the progression of hydrocephalus, craniograms show divergence of the cranial sutures, most often the coronal and sagittal sutures, already after 2-3 weeks. Asymmetrical expansion of the cranial sutures indicates the localization of the lesion. Thinning of the bones of the cranial vault and pronounced digital impressions in children of the first year of life indicate the relative duration of the process that led to the limitation of intracranial space.

Computed tomography is a safe and painless method of x-ray examination of the skull and brain structures, the radiation exposure is minimal (0.3 load when taking a regular x-ray of the skull). For young children, the significance of these advantages is very great. In addition, it can be performed on an outpatient basis. Computed tomography gives a clear picture of the size of the ventricles of the brain in hydrocephalus, as well as the presence and location of lesions.

The depth and nature of the delay in psychomotor development in hydrocephalus and hypertension syndrome vary widely depending on the primary changes in the nervous system that caused hydrocephalus, and those secondary to increasing hypertension. If the destructive changes in the brain that caused hydrocephalus were pronounced, even if hydrocephalus is compensated by conservative or surgical measures, the child’s development is significantly delayed. At the same time, the addition and progression of hypertensive-hydrocephalic syndrome in any pathology makes the developmental delay even more pronounced and peculiar, despite compensation of the primary process. Finally, with timely effective compensation of both the primary process and hydrocephalus, a slight developmental delay, often partial, is quickly eliminated.

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Drug therapy

Medications to get rid of primary muscle dysfunction can only be prescribed by a doctor after examination and studying the results of diagnostic studies.

Drug therapy includes:

  • sedatives (relieve anxiety, relax muscles, improve sleep quality);
  • nootropics (increase blood circulation in the brain area, increase resistance to stress and strain);
  • neuroleptics (relieve tension, help cope with phobias);
  • magnesium and calcium (normalize the level of substances in the body).

Dr. Komarovsky recommends changing the child’s diet, temporarily replacing tea with decoctions of medicinal herbs (chamomile, valerian, motherwort).

Psychotherapy methods

To treat a primary nervous tic, a child needs the help of a psychologist. The doctor finds out the reasons for the baby’s worries and gives recommendations to the parents. Sometimes involuntary movements disappear on their own after stopping communication with certain people (classmate, teacher, relative). But more often, to eliminate them it is necessary to change the atmosphere in the family.

In addition to creating a trusting, calm environment in the house, Dr. Komarovsky advises helping the child cope with his experiences using the method of fairy tale therapy. Before going to bed, tell fairy tales in which the heroes defeat their enemies and find a way out of difficult situations. Ask your child to come up with fairy tales. In them, the son/daughter will involuntarily express his fears.

Swimming in the pool, massage, acupuncture, and relaxing water treatments are effective auxiliary methods for treating nervous tics.

When treating nervous tics in adolescents, Komarovsky recommends finding an interesting hobby. Girls can choose needlework according to their taste (embroidery with floss, beads, ribbons, baking desserts, quilling). Boys will be interested in mastering a musical instrument or a new sport for them.

When to go to the doctor

A planned visit to a neurologist is required in the first, third, sixth and twelfth months. During the examination, you can voice complaints and ask questions to the specialist. The neurologist will examine the child for the presence of disorders and give recommendations regarding treatment and try to find the causes that caused the disease (if any). Consultation is necessary as soon as possible when the following symptoms are observed:

  • When crying, the child throws his head back.
  • Congenital ones do not fade away six months after birth.
  • The baby does not respond to bright lights or the noise of a rattle.
  • Does not hold the head after the first thirty days of life.
  • Saliva is produced profusely after feeding.
  • There are difficulties in feeding, the baby cannot swallow food.
  • Increased anxiety, lack of need for sleep.
  • The baby cannot hold the rattle 30 days after birth.
  • Loses consciousness, convulsions or temporary “blackouts” of consciousness (absences) are observed.
  • The fontanelle sinks into the head.
  • Cries often and has difficulty falling asleep.
  • Does not imitate the speech of adults after the third month of life.
  • Does not like to lie on his stomach (a typical sign of children with neurological disorders).
  • Doesn't cry, passive behavior, sleep takes more than 20 hours a day.
  • Difficult to change clothes due to severe muscle tension.
  • The baby constantly arches his body or tilts his head to the side.

If neurology in children under one year of age is not treated contrary to doctor’s recommendations or was not noticed, at an older age this will lead to speech delay, inability to concentrate, learn and control behavior. The most “harmless” result is headaches and emotional instability.

Prevention measures

To prevent relapses, Dr. Komarovsky recommends adhering to the following rules:

  • maintain a daily routine;
  • transfer family members to a healthy diet;
  • reduce expectations for behavior and academic performance;
  • do not raise your voice or use physical force;
  • maintain trusting relationships.

If spontaneous physical activity is accompanied by headache, fever, fatigue, consult a pediatrician or neurologist.

Diagnosis of the nervous system in children

Surely, after becoming familiar with the types of NS diseases, most parents will come to the conclusion that it is necessary to learn about the diagnosis of such troubles. There is only one piece of advice here - immediately contact a neurologist. If the doctor is unable to make a diagnosis based on the consultation, he will turn to clinical studies and CT scans of the brain.

Despite the fact that diseases of the nervous system in children are very dangerous, they are treatable. How to treat and with what is a task that should be entrusted to a specialist. The type of treatment depends on the type of disease and symptoms. But a child’s stay in a hospital setting is a necessary condition in any case.

As a rule, there is no prevention of NS diseases. The only thing you need to note is to consult with children’s doctors more often about your baby’s complaints and behavior, and also don’t forget to introduce him to a healthy lifestyle!

Photo: Creating a healthy lifestyle

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