What Is a Ganglion Cyst Excision?

Arachnoid cysts are benign lesions that can occur in various parts of the brain, such as lateral fissure, anterior temporal lobe, convex brain, longitudinal hemisphere fissure, saddle area, quadrilateral, slope, cerebellar pontine angle, and midcranial fossa etc. .

Cerebral nerve bundle cystectomy

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Arachnoid cysts are benign lesions that can occur in various parts of the brain, such as lateral fissure, anterior temporal lobe, convex brain, longitudinal hemisphere fissure, saddle area, quadrilateral, slope, cerebellar pontine angle, and midcranial fossa etc. .

Cerebral nerve bundle cystectomy

Resection of Arachnoid Diverticula; Resection of Cerebral Meningeal Cyst; Resection of Arachnoid Cyst; Resection of Arachnoid Diverticula; Resection of Arachnoid Diverticula; Resection of Arachnoid Diverticula Leptomeningeal Cysts; Resection of Arachnoid Diverticula Perineural Cysts; Resection of Arachnoid Diverticula Tarlov Cysts

Neurosurgery / Cranial Congenital Malformation

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Pathology can be divided into two types: one is true arachnoid cysts, and the cyst wall is composed of a thin layer of arachnoid cyst. The cyst contains cerebrospinal fluid, which is not connected with the surrounding subarachnoid space, and most of them are congenital. Caused by different secondary factors, such as trauma, inflammation, or surgery, due to arachnoid adhesions, cerebrospinal fluid accumulates in the subarachnoid space to form a sac cavity. There are often small channels associated with the subarachnoid space. Cerebrospinal fluid is injected into the sac. Gradually increase. This kind of cyst is called a subarachnoid cyst, not a true arachnoid cyst.

Enlarged cysts slowly cause compression of the adjacent brain, and can cause increased intracranial pressure, and symptoms such as headache, cranial nerve dysfunction, epilepsy, and limb weakness. According to the cyst site, the clinical symptoms can be very different. Some very large arachnoid cysts can be completely asymptomatic, while some very small cysts are very obvious. On radiographic examination, plain radiographs of lateral fissure cysts often show signs of thinning and swelling of the bones in the squamous scales of the temporal bone. Children with this disease are similar to hydrocephalus because of an enlarged head. CT and MRI examinations have the most diagnostic value. They can show intracranial cystic occupying lesions with low density or low signal. The content of the cyst is equivalent to that of the cerebrospinal fluid, and there is no enhancement effect on the cyst wall.

Cerebral nerve bundle cystectomy is suitable for cysts in various parts, who have caused clinical symptoms, or although there are no obvious symptoms, but

Older people who have had cysts for many years without obvious neurological symptoms and increased intracranial pressure, especially organic heart disease and diabetes, are not suitable for surgery.

1. CT or MRI examination to determine the location and scope of the arachnoid cyst.

2. Preparing for craniotomy before surgery.

More general anesthesia is used. The position of the surgery depends on the site of the arachnoid cyst. The supine position is usually supine, and the lower position is lateral.

When separating and removing the inner capsule wall of arachnoid cysts, it is necessary to prevent damage to brain tissue and nerves and blood vessels.

When conditions are available after craniotomy, postoperative ICU monitoring should be performed. When there is no monitoring condition, the patient's consciousness, pupil, blood pressure, pulse, respiration and body temperature should be closely observed. Measurement and observation should be performed every 15min ~ 1h according to the condition and carefully recorded. If the consciousness is gradually awake, it means that the condition is better; if it is not awake for a long time or it gradually worsens after awake, it often indicates that there are intracranial complications, especially intracranial hemorrhage, a CT scan should be performed if necessary. Once confirmed, it should be sent to the operating room in time. Remove the hematoma and stop the bleeding completely. Those with severe cerebral edema should strengthen dehydration treatment. Those with more bleeding during craniotomy should pay attention to replenish blood volume and maintain normal blood pressure. But blood transfusion and fluid replacement should not be too fast, so as not to aggravate cerebral edema. Respiratory tract should be kept unobstructed, tracheostomy should be performed for those who cannot be awake in a short time. Oxygen should be given after surgery.

Lie on your back or side before anesthesia. After awake, the head of the bed should be raised by 20 ° ~ 30 ° in order to facilitate head blood reflux and reduce edema response. To prevent fallout pneumonia and bedsores, turn over regularly, which is especially important for patients with paralysis or coma.

If there is drainage in the surgical incision, the drainage volume should be closely observed within 24 to 48 hours after operation, and the dressing should be replaced in time. After the drainage is removed, the sterile incision generally does not need to be changed again until the suture is removed. However, if there are signs of infection or infected incisions, or leakage, the dressing should be changed in a timely manner.

24 to 48 hours after the diet is generally not given to avoid vomiting. Frequent vomiting can increase intracranial pressure, which is a major contraindication for postoperative. In patients with swallowing disorders, food is easily inhaled into the trachea by accident, causing suffocation or aspiration pneumonia. You must try a small amount of food after you are fully awake, and you can eat it only when there is no problem. If the coma or swallowing disorder cannot be recovered for a short time, the stomach and nausea can be placed after the bowel sounds are restored.

1. When dealing with deep arachnoid cysts, important brain tissues, nerves, and blood vessels are accidentally injured.

2. Wound infection.