Typical case: For a year, Mr. Sun, 53 years old, became dizzy when he moved, and when it was severe, he could not even walk steadily. In addition, his eyesight dropped dramatically and his memory was bad, as if he had “amnesia”. Mr. Sun came to the hospital and was diagnosed with hydrocephalus and underwent a neuroendoscopic triple ventriculostomy. After the surgery, when Mr. Sun came to his senses, his dizziness had been eliminated, and soon his vision and memory improved and he could live like a normal person. Excessive accumulation of cerebrospinal fluid In the human brain, in addition to the blood circulation system, there is also a cerebrospinal fluid circulation system. Under normal circumstances, cerebrospinal fluid is a colorless and transparent liquid that plays the role of lymphatic fluid in the central nervous system, supplying brain cells with certain nutrients, transporting metabolites from brain tissue, regulating the acid-base balance of the central nervous system, and buffering the pressure in the brain and spinal cord, providing protection and support to the brain and spinal cord. The cerebrospinal fluid is mainly produced by the choroid plexus, a natural cavity in the brain called the ventricle, which passes through the bilateral ventricles, the three ventricles, the middle cerebral aqueduct, the four ventricles, and finally reaches the subarachnoid space. If there is an obstruction in the circulatory pathway of cerebrospinal fluid or an impairment in the absorption process, it can lead to excessive accumulation of cerebrospinal fluid in the ventricles, causing the ventricular system to enlarge and form hydrocephalus. The cause of hydrocephalus can be congenital developmental abnormalities, cephalic trauma and aneurysmal subarachnoid hemorrhage, bacterial meningitis, intracranial tumors, and many other factors, and in some patients, the cause is unknown. Hydrocephalus can cause increased intracranial pressure and serious damage to the structure and function of brain tissue, which can cause pain and reduced ability to live, and in severe cases can be disabling or even life-threatening, so it must be treated properly. High cranial pressure hydrocephalus may present with headache, nausea, vomiting, ataxia, blurred vision, diplopia and even loss of vision, while normal cranial pressure hydrocephalus mainly presents with mental retardation, unsteady gait and urinary incontinence. Hydrocephalus can be clearly diagnosed by head CT and MRI description. Timely treatment of hydrocephalus Once hydrocephalus is developed, it must be treated immediately. Director Wang said that if treatment is not timely, it is likely to result in malignant consequences such as blindness and paralysis. In the past, the treatment of hydrocephalus generally used extracranial shunt surgery, using a long and thin shunt tube connected to a shunt pump into the lateral ventricle at one end and into the abdominal cavity at the other end, through which part of the cerebrospinal fluid is shunted into the abdominal cavity to be absorbed for treatment purposes, and the shunt tube is permanently placed in the body. However, the shunt may be blocked after this procedure, and the patient may experience siphoning during squatting, resulting in large fluctuations in cranial pressure and a postoperative complication rate of 30-40%. In contrast, if a new type of anti-siphoning, adjustable shunt is applied, the effect is improved, but it is expensive. Currently, the use of neuroendoscopy for hydrocephalus is the most advanced method internationally, with neuroendoscopic triple ventriculostomy being the most effective. In this method, a small hole is drilled in the skull and a neuroendoscope is used to reconstruct the circulation of cerebrospinal fluid flowing from the ventricles into the subarachnoid space at the base of the three ventricles. 1. Patients do not need to have catheters placed in their bodies, and there is no discomfort and psychological burden caused by foreign bodies. Child patients are not affected by growth and development, and there is no growth in height and insufficient length of catheter to cause re-operation. 2.The cerebrospinal fluid circulation channel reconstructed by endoscopic fistula is a thin film fistula of >5mm in diameter, under which there is a thick basilar artery continuously and forcefully pulsating through the conduction of cerebrospinal fluid, so that the fistula keeps swinging up and down substantially, and obstruction and closure of the fistula rarely occur, with stable, reliable and long-lasting curative effect. 3. The surgical method makes the cerebrospinal fluid form an intracranial shunt between the ventricle and the arachnoid pool, which is closer to the physiological circulation of cerebrospinal fluid and cannot produce the fluid siphoning effect caused by excessive shunting, insufficient shunting and position change, and patients will not get dizzy because of the change in cranial pressure from squatting. At the same time, there are few long-term adverse reactions and uncomfortable symptoms after surgery, and most patients can engage in work, labor and study like normal people. In addition, endoscopic surgery is less traumatic, with low mortality and very few serious complications.