Hydrocephalus is due to the obstruction of cerebrospinal fluid (a fluid in the skull, which has a cushioning and nutritional effect on brain tissue, our brain is actually soaked in fluid) circulation, or excessive cerebrospinal fluid production or cerebrospinal fluid absorption disorder resulting in excessive fluid in the ventricular system, this condition has a great impact on the function of brain tissue, mainly because the pressure inside the ventricles increases, the volume of the ventricles expands, and even the intracerebrospinal The fluid penetrates into the surrounding brain tissue through the ventricular wall due to excessive pressure and Naval General Hospital Neurosurgery Yu Xin. Generally speaking, hydrocephalus is continuously progressively aggravated, and the impact on brain tissue and function is also continuously aggravated, and the patient’s clinical symptoms are naturally continuously aggravated, so timely intervention and treatment are required. Ventriculo-ventricular shunt surgery is a traditional and effective method for treating hydrocephalus. The surgical method used to live in the brain is ventriculo-abdominal shunt, which means that the cerebrospinal fluid inside the brain is shunted into the abdominal cavity through ventricular puncture and subcutaneous shunt tube implantation, and the cerebrospinal fluid is absorbed into the blood circulation through the strong absorption capacity of the abdominal cavity. This method is very effective in relieving hydrocephalus, but there are some risks of surgical complications, such as the risk of brain tissue damage resulting in impaired brain function and seizures because the puncture needle or puncture tube has to pass through the brain parenchyma during ventricular puncture, and the risk of forming intracerebral hematoma because of the vascular damage caused by the puncture, and secondly, because the shunt tube travels a long route in the body (from the scalp to the abdomen), the chance of infection The chances of infection are increased. In recent years, through continuous research and practical experience, the lumbar pool-abdominal shunt has shown more advantages and features. Under normal conditions, the ventricular system and the ventricular pool are kept open, and the ventricular pool-abdominal shunt is almost exactly the same as the ventricular-abdominal shunt, but it has several obvious advantages in comparison: 1, the lumbar pool-abdominal shunt does not require circulating brain tissue puncture, so there is no risk of intracerebral hematoma formation or seizure complications; 2, the lumbar pool-abdominal shunt is significantly shorter than the ventricular-abdominal shunt because of the subcutaneous drainage tube subterranean route. This complication is very serious and can lead to failure of shunt surgery and other fatal consequences if it occurs. Of course, any surgery has its own indications, and lumbar ventriculo-abdominal shunt is naturally no exception. Lumbar ventriculo-abdominal shunt is mainly indicated for non-obstructive hydrocephalus, including normal pressure hydrocephalus (after trauma, cerebral hemorrhage and unexplained) and all traffic hydrocephalus due to other causes. Obstructive hydrocephalus is a contraindication to lumbar pool-abdominal shunt.