Is hydrocephalus easy to treat?

Written by Chen Yu Fei
Neurosurgery
Updated on September 04, 2024
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For patients with hydrocephalus, it is generally recommended to treat the condition surgically. Before the surgery, the patient should undergo a cranial CT or MRI to assess the type and severity of the hydrocephalus. If possible, a lumbar puncture should also be performed before the surgery to determine whether there is a significant increase in intracranial pressure, and a small amount of cerebrospinal fluid should be collected for routine and biochemical analysis of the cerebrospinal fluid. If there are no obvious contraindications to surgery, clinically, it is generally recommended to choose a ventriculoperitoneal shunt surgery. Most patients respond well to the surgery, and the morphology of the ventricular system gradually returns to normal.

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Early manifestations of infant hydrocephalus

Infant hydrocephalus initially manifests as an enlarged head, beginning from birth with progressive increase in head circumference that is disproportionate to body growth. Upon examination, bulging fontanelles, thin scalp, and clearly visible scalp veins can be observed, with widened or even separated sutures. Additionally, due to increased intracranial pressure, symptoms such as irritability, recurrent vomiting, refusal to eat, abnormal behavior, and seizures may present as early indicators.

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Hydrocephalus Clinical Manifestations

In adults, hydrocephalus can be of the normal pressure type, mainly characterized by unsteady gait, slow responses, urinary and fecal incontinence, among others. There is also high-pressure hydrocephalus, which mainly presents as increased intracranial pressure, with the most common symptoms being headache, vomiting, papilledema, and ataxia. In children and infants, hydrocephalus has its own characteristics. In addition to some of the adult symptoms, there are also anomalies such as an abnormally increased head size, bulging fontanelles, "sunset" eye sign, intellectual and cognitive impairments, decreased vision, visual field defects, decreased hearing, epilepsy seizures, and more.

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Written by Chen Yu Fei
Neurosurgery
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Can hydrocephalus be drained?

For patients with hydrocephalus, surgery is generally recommended. A common surgical option is the ventriculo-peritoneal shunt procedure, where a drain tube is placed in the patient's ventricular system. Through this surgery, excess cerebrospinal fluid is drained from the ventricular system to the patient's abdominal cavity, achieving a new balance. Most patients who undergo surgery achieve desirable outcomes, with initial symptoms and physical signs likely improving gradually. Over time, the patient's ventricular system may reduce in size, and may even return to normal. Therefore, for most patients with hydrocephalus, the surgical outcome is quite certain, and it is advised to opt for surgery at an early stage.

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Will hydrocephalus cause the fontanel to bulge?

Hydrocephalus comes in two types: obstructive hydrocephalus and communicating hydrocephalus. Obstructive hydrocephalus is characterized by the inability of cerebrospinal fluid (CSF) to flow from the brain to the spinal cord, preventing normal circulation. In this situation, the pressure inside the skull can gradually increase due to the buildup of fluid, potentially leading to the progressive bulging of a child's fontanel. On the other hand, communicating hydrocephalus involves the CSF being able to circulate between the brain cavities and the spinal cord, merely resulting in an enlargement of the ventricles without the bulging of the fontanel.

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How to deal with hydrocephalus?

The treatment of hydrocephalus must clearly identify the severity of the condition. Hydrocephalus can be categorized into acute and chronic types. In cases of acute hydrocephalus, emergency ventricular puncture drainage surgery is required, otherwise, it may cause brain herniation leading to death. For chronic hydrocephalus, it is crucial to distinguish whether it is communicating hydrocephalus or obstructive hydrocephalus. For obstructive hydrocephalus, treatment options include creating a patency in the cerebral aqueduct and third ventriculostomy. For other types of hydrocephalus, ventriculoperitoneal shunt surgery can be performed. Therefore, it is essential to clearly determine the type of hydrocephalus to fundamentally select the appropriate surgical methods and instruments.