Introduction:
Intraventricular hemorrhage originated in the periventricular subependymal germinal matrix with a subsequent entry of blood into the ventricular system. Intraventricular hemorrhage developing within seventy-two hours of birth may lead to an early intraventricular hemorrhage. Intraventricular hemorrhage developing after seventy-two hours of birth may lead to late ventricular hemorrhage.
It is more common in premature birth, especially in very low birth weight cases, weighing less than fifteen hundred grams. It is more common in premature birth, especially in very low birth weight infant, weighing less than fifteen hundred grams. The cranial vessels are not fully developed and are extremely fragile.
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Premature birth.
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Difficult delivery.
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Infection in the infant's mother.
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Breathing difficulties such as pneumothorax or respiratory distress syndrome.
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Bleeding problems.
What Is the Pathogenesis of Intraventricular Hemorrhage?
Intraventricular hemorrhage occurs in the subependymal germinal matrix. It is located between the caudate nucleus and the ependymal lining of the lateral ventricle. The blood vessels in this area are immature and prone to hypoxic-ischemic injury.
Fluctuations in the cerebral blood flow play a crucial role in developing intraventricular hemorrhage. A sudden rise in systemic blood pressure may increase cerebral circulation with subsequent rupture of the germinal matrix vessels. A marked decrease in cerebral blood flow can result in ischemic injury to germinal matrix vessels, which ruptures on reperfusion.
What Are the Risk Factors of Intraventricular Hemorrhage?
The risk factors of Intraventricular hemorrhage include:
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Premature birth.
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Rapid volume expansion.
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Coagulopathies.
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Hypoxic ischemic insults.
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Respiratory disturbances.
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Acidosis.
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Infusion of hypertonic solutions.
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Vacuum-assisted delivery.
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Frequent handling.
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Tracheal suctioning.
What Are the Signs and Symptoms of Intraventricular Hemorrhage?
Symptoms may vary from child to child. Few may be asymptomatic, and others may complain of the following:
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Apnea or difficulty in breathing.
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Reduced muscle tone.
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Reduced reflexes.
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Excessive sleep.
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Lethargy.
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Weakness sucks.
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Poor feeding.
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Anemia.
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Bulged fontanelles.
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Seizures.
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High-pitched cry.
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Bradycardia.
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Cutaneous mottling.
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Absent Moro's reflex.
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Changes in muscle tone or level of consciousness.
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A sudden drop in hematocrit.
A large intracranial hemorrhage can lead to:
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Rapid onset of coma.
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Seizures.
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Decerebrate posturing.
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Pupils fixed to light.
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Respiratory irregularities.
What Is the Grading of Intraventricular Hemorrhage?
The grading includes:
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Grade 1: Isolated germinal matrix hemorrhage restricted to the subependymal region.
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Grade 2: Intraventricular hemorrhage without ventricular dilatation or extension into the normal-sized ventricles. Fills less than half of the ventricles.
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Grade 3: Intraventricular hemorrhage with ventricular dilatation or extension into the dilated ventricles.
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Grade 4: Intraventricular hemorrhage with parenchymal extension. Blood clots can form and block the flow of cerebrospinal fluid, leading to hydrocephalus.
Grades 1 and 2 are more common and may occur without any associated complications compared to grades 3 and 4. However, grades 3 and 4 are more serious and may turn out to be long-term injuries to the brain.
What Are the Lab Investigations to Be Carried Out?
The clinical signs and symptoms of intraventricular hemorrhage are non-specific and may resemble other medical conditions. Therefore, a cranial ultrasound should always be done in a premature infant or less than thirty-two weeks of gestation. Infants less than a thousand grams are at higher risk and should undergo cranial ultrasonography within the first three to seven days of birth.
The lab investigations to be carried out are:
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Cranial Ultrasound is specifically used to diagnose intravascular hemorrhage. It uses sound waves to detect any abnormalities with internal structures. The amount of bleeding can also be graded.
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Computed Tomography (CT) Scan of the Head: It is always recommended if an infant shows symptoms of bleeding problems, low blood count, and difficult birth.
What Are the Management of Intraventricular Hemorrhage?
No specific treatment protocol is available for intraventricular hemorrhage. It may be associated with other complications that may require treatment.
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Seizures should be treated aggressively with anticonvulsant drugs.
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Anemia and coagulopathies require transfusion with packed red blood cells or fresh frozen plasma.
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Shock and acidosis should be treated with fluid resuscitation and administration of sodium bicarbonate.
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Infants with severe intraventricular hemorrhage may develop hydrocephalus, which is usually managed by draining the fluid from the brain. A ventriculoperitoneal (VP) shunt is usually placed to do so. It is a thin tube that helps drain extra cerebrospinal fluid from the brain and thus prevents the building up of pressure within the brain.
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Serial lumbar punctures, ventricular taps or reservoirs, and externalized ventricular drains are often used as potential temporary interventions.
The prognosis of the disease depends upon how premature the baby is and the hemorrhage grade. Most infants with a lower grade of hemorrhage have a better prognosis. A severe hemorrhage grade may lead to developmental delays and problems controlling movement. There are high chances of death in infants with severe bleeding.
What Are the Prevention Strategies for Intraventricular Hemorrhage?
Prenatal prevention strategies include:
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Avoidance of premature deliveries.
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Transportation in utero.
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Antenatal steroid therapy who are at risk of early delivery.
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Antenatal vitamin K therapy who are at an increased risk of bleeding.
Postnatal prevention strategies include:
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Avoidance of birth asphyxia.
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Correction of acid-base abnormalities.
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Correction of coagulopathies.
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Avoidance of blood pressure fluctuations.
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Avoidance of rapid infusions of volume expanders or hypertonic solutions.
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Synchronized mechanical ventilation.
Conclusion:
Intraventricular hemorrhage developing within seventy-two hours of birth may lead to an early intraventricular hemorrhage. The more premature an infant is the more risk of developing intraventricular hemorrhage. No specific treatment protocol is available for intraventricular hemorrhage. However, symptomatic treatment may be provided with anticonvulsant drugs, red blood cell transfusion, fluid resuscitation, and even a ventriculoperitoneal shunt can be beneficial. Infants with a lower grade of hemorrhage have a better prognosis.