The success rate of arachnoid cyst surgery, choose scientific surgery

Arachnoid cyst is a benign congenital lesion. Generally, there are no obvious symptoms in the early stage of the disease. Only larger arachnoid cysts will cause some intracranial lesions. It can be treated surgically. The success rate of the operation is closely related to the chosen hospital, the method of surgery, and the nursing care.

1. Surgical method

(I) Open craniotomy and cyst wall resection

Used in patients with smaller cysts.

Craniotomy has certain risks.

(ii) Cyst shunt surgery

It is used for patients with huge cysts. The operation is simple and the risk is relatively small.

(III) Neuroendoscopic cyst-subarachnoid communication

It is relatively complicated. Some patients may experience healing of the anastomosis and reappearance of the cyst long after surgery.

In short, early examination of the cyst can determine whether surgical treatment is indicated and what surgical method to use based on the cyst's location, size, shape, and clinical manifestations. Timely diagnosis and correct treatment will achieve good results and are extremely beneficial to patients, especially pediatric patients.

2. Causes

Congenital arachnoid cyst

Congenital arachnoid cyst is a common type, and its cause is not fully understood. The following speculations are made: ① The cause of this disease may be that during embryonic development, a small piece of arachnoid membrane falls into the subarachnoid space and develops. That is, the cyst is located in the arachnoid membrane. Under the microscope, it can be seen that the arachnoid membrane is split into two layers around the cyst. The outer layer constitutes the surface of the cyst, and the inner layer constitutes the cyst base. There is still a subarachnoid space between the pia mater and the cyst base. ② Others believe that during embryonic development, the pulsation of the choroid plexus acts as a pump for cerebrospinal fluid, separating the loose perimedullar network surrounding the nerve tissue to form the subarachnoid space. If the early cerebrospinal fluid flow is abnormal, cysts may form in the perimedullar network. ③Because this disease is often accompanied by other congenital abnormalities, such as ectopic choroid plexus in the cyst, partial absence of the falx cerebri, and absence of the orbital plate, temporal lobe and internal carotid artery, all confirm that the basic cause of this disease is brain hypoplasia. There is no consensus on the reasons for the continuous enlargement of arachnoid cysts. The possible reasons are: ① There are small holes in the cyst wall that communicate with the subarachnoid space. Cerebrospinal fluid continuously flows into the cyst through this hole. The small hole acts as a valve, and the pulsation of the skull base artery causes the cyst to gradually enlarge. It is also possible that some factors cause the small holes to be blocked, resulting in increased intracranial pressure. ② There is an ectopic choroid plexus in the cyst, which secretes excessive cerebrospinal fluid and cannot be absorbed. ③ In some cases, the cyst is not connected to the subarachnoid space, the protein content in the cyst fluid increases, and the difference in osmotic pressure between inside and outside the cyst causes the cyst to gradually increase in size. ④ Venous bleeding inside the cyst or on the cyst wall causes the cyst cavity to rapidly enlarge.