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Hydrocephalus
How is hydrocephalus treated?
If hydrocephalus is suspected, it is advised to first visit a local hospital for an emergency cranial CT scan to determine the type and severity of the hydrocephalus. This helps identify the main causes of the condition and whether it is communicating or non-communicating hydrocephalus. Treatment plans should then be based on the patient's symptoms and physical signs. For those with obvious clinical symptoms of obstructive hydrocephalus, surgery is often recommended. Clinically, a ventriculoperitoneal shunt surgery is generally chosen. Through surgical intervention, original symptoms can gradually alleviate or even disappear, and the morphology of the ventricular system can progressively return to normal.
What is hydrocephalus shunt?
Patients with hydrocephalus usually require shunt surgery, among which the most common is the ventriculoperitoneal shunt. The shunt tube used in this surgery typically features a reservoir, often referred to by patients as a "water basket". Patients are frequently required to press this reservoir to promote the excess cerebral spinal fluid to flow through the shunt tube into the abdominal cavity, where it is absorbed by the omentum. If the reservoir is not pressed, the shunt tube may become blocked, potentially requiring the surgery to be performed again.
Is hydrocephalus easy to treat?
Hydrocephalus is relatively easy to treat. Before treatment, it is advised to first perform a cranial CT scan or MRI on the patient to determine the type and severity of the hydrocephalus, and based on whether the patient currently shows significant clinical symptoms, decide if surgical treatment is necessary. Additionally, a cranial CT or MRI can help identify the cause of the hydrocephalus, such as whether there is an intracranial space-occupying lesion or if the cerebral fluid circulation pathway is obstructed for other reasons, leading to hydrocephalus. If treatment is deemed necessary, it is generally recommended to opt for ventriculo-peritoneal shunt surgery for the patient. Most patients can achieve good results after the surgical treatment.
Causes of Hydrocephalus
Under normal conditions, the secretion, circulation, and absorption of cerebrospinal fluid (CSF) maintain a dynamic balance. In some pathological states, this balance is disrupted, leading to an excessive accumulation of CSF within the ventricular system, a condition known as hydrocephalus. Hydrocephalus can be classified into obstructive hydrocephalus and communicating hydrocephalus. The causes of obstructive hydrocephalus mainly include obstructions in the ventricular system, such as congenital malformations or abnormal development of the cerebral aqueduct, which are the most common causes of hydrocephalus in infants. In adults, tumors, bleeding, blockages, or compression of the ventricular system are also common causes of hydrocephalus. Communicating hydrocephalus results primarily from acquired diseases, such as cranial infections or blockages of arachnoid granulations by subarachnoid hemorrhage, leading to impairments in CSF absorption.
Causes of hydrocephalus in infants
The occurrence of hydrocephalus in infants involves congenital factors, including poor brain development caused by exposure to medications, radiation, rays, and viral or bacterial infections during the embryonic stage, leading to hydrocephalus. Infant hydrocephalus also includes some acquired factors, such as birth injuries occurring during delivery, and post-birth conditions like inflammation in the brain, tumors, or arachnoid cysts. These conditions can lead to excessive production of cerebrospinal fluid, impaired circulation, or insufficient absorption, resulting in hydrocephalus.
How to relieve headache caused by hydrocephalus?
Hydrocephalus causing headaches is generally related to high pressure in the brain. Hydrocephalus leads to an enlargement of the ventricular system, compressing the surrounding brain tissue. Since the volume of the skull is fixed, increased accumulation of fluid can cause a rapid rise in internal pressure, leading to headaches. In severe cases, it may cause nausea, vomiting, and disturbances in consciousness, making the patient drowsy, stuporous, or even comatose. In such cases, the main treatment is to reduce the pressure inside the brain. Dehydrating agents, such as mannitol, can be used; however, mannitol mainly removes water from inside the cells and is more effective for cerebral edema than for hydrocephalus. Furosemide can be used to reduce the secretion of cerebrospinal fluid and may have some effect on hydrocephalus. However, the key treatment is likely to be surgical, such as lateral ventricular drainage, which can fundamentally resolve the problem of fluid accumulation but can also lead to complications like infections.
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.
How is hydrocephalus treated?
Hydrocephalus is caused by the continuous increase of cerebrospinal fluid in the ventricular system of the brain. There are two types of hydrocephalus: obstructive hydrocephalus and communicating hydrocephalus, each with different treatment methods. Obstructive hydrocephalus is caused by obstructions such as tumors or blood clots, so removing tumors or clearing blood clots can relieve the obstruction and treat the hydrocephalus. On the other hand, communicating hydrocephalus usually has no obstruction; it is primarily caused by excessive production or insufficient absorption of cerebrospinal fluid. A common treatment is ventriculoperitoneal shunt surgery, which diverts cerebrospinal fluid from the ventricles to the abdominal cavity to treat hydrocephalus.
Can hydrocephalus be effectively treated?
For patients with hydrocephalus, if timely and effective treatment can be obtained, most patients can achieve very good treatment results. For patients with progressive obstructive hydrocephalus, it is especially important to seize the time to perform surgical treatment in the early stages. Clinically, it is generally recommended to choose ventriculoperitoneal shunt surgery, placing a drainage tube in the patient's lateral ventricle, entering the peritoneal cavity through a subcutaneous tunnel, and draining the cerebrospinal fluid from the ventricle to the peritoneal cavity, thereby achieving the purpose of relieving the excessive cerebrospinal fluid in the ventricular system. After undergoing surgery, the patient's dilated bilateral lateral ventricles can effectively shrink, and conditions such as pre-existing cognitive dysfunction, limb motor dysfunction, and incontinence will improve.
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.