Neurosurgery or brain surgery refers to surgical procedures of the brain or structures around it and is done to correct any abnormalities such as tumours or aneurysms. It is a critical procedure trained neurosurgeons perform in a highly specialised environment. Recent advances in brain surgery have allowed a higher number of doctors to prescribe it under some circumstances, and depending on the placement of the structural aberration, the individual's health and the severity of the issue, the brain surgery types to be performed are suggested by the doctor. Minimally invasive brain surgery procedures through precision instruments have become possible today with more technological development on this front, reducing the number of brain surgery risks associated with the procedure.

Why is Brain Surgery Performed?

Brain surgery may be performed for any of the following reasons:

Prevent bleeding inside the brain because of an aneurysm
Operate on a tumour to remove it
Free a nerve in the brain area that is being pinched
Drain an abscess or blood from an injury and remove pressure on the brain

Conditions That Require Brain Surgery

Structural abnormalities of the brain that may require a brain operation include:

Congenital brain defects such as blood vessel malformation where connections between veins and arteries are formed in the brain region
Internal bleeding in the brain due to an aneurysm where an arterial wall weakens and ruptures
Blood clots and bleeding in the brain are corrected through brain operation to prevent further trauma to brain tissue surrounding the problem area
Epidural or subdural abnormalities such as hematomas are corrected through suitable brain surgery procedures
Edema of the brain is the buildup of fluid around the brain, causing swelling and recurring headaches and pressure to the brain
Brain tumours are usually removed through critical brain surgery, especially in the case of cancer formations
Doctors may suggest brain surgery in some instances of epilepsy caused by an abnormality in the brain structure or pressure on a nerve
Neuropathic pain may occur when a nerve between the brain and the spine is damaged due to a stroke, tumour or accident, among other causes
Infection in surrounding areas or brain tissue may cause the area to be filled with the infected material and brain surgery may be suggested to drain the abscess
Parkinson's disease may be helped by brain surgery where the nervous signals required to control motor function are too weak or abnormal

Types of Brain Surgery

Biopsy

A biopsy involves removing a small amount of tissue to study for abnormalities and prevent further symptomatic concerns. It may also be performed during brain surgery to detect tumours or other abnormalities.

Craniotomy

In this brain surgery type, a cut has to be made to the scalp bone that exposes the brain tissue. That is why it is also called open brain surgery. A hole called the bone flap is created, and the issue to be addressed through the brain surgery procedure, such as an aneurysm or fluid draining, is performed. The bone flap is then removed in cases where postoperative swelling is expected, or tumour growth is possible to prevent further pressure and trauma to the brain. It is called craniectomy since a portion of the cranium is being removed. In most cases, the bone flap is secured back on the skull after the brain operation is complete through screws and plates.

Neuroendoscopy

In some cases, it may be possible for brain surgery to happen through an endoscope, where small holes may be made into the skull, and the endoscope is fed through them to guide the brain surgery procedure. It is considered minimally invasive as compared to open brain surgery and reduces the trauma on the patient's health while speeding up recovery time. Endoscopic brain surgery is usually used to address tumour formations in the brain and is also known as keyhole surgery since the holes made during this type of brain surgery are very small.

Deep brain stimulation

Deep brain surgery involves the placement of electrodes deep within the brain to stimulate nervous signals ordinarily missing in a patient. It is usually carried out through minimally invasive brain surgery procedures that allow the neurosurgeon to place the electrode leads within the brain tissue. The pulse generator that will create the electrical impulses to signal the brain is placed in a box device similar to a pacemaker in the chest area. This type of brain surgery typically aids patients with neurodegenerative disorders such as Parkinson's disease, tremors and epilepsy.

Endonasal endoscopic surgery

A thin tube carrying an endoscope is passed through the nasal cavity up to the front regions of the brain, giving this brain surgery type its nomenclature. This brain operation addresses tumour formation in the frontal areas of the brain as well as the top of the spine without brain exposure every day to open brain surgery procedures. Recovery time is reduced, and the risk of infection is smaller in any endoscopic brain surgery compared to a traditional one.

Awake brain surgery

As suggested by the term, awake brain surgery is a type of open brain surgery carried out while the patient is awake and responsive, under local anaesthesia. This brain surgery type allows doctors to note a patient's responses to stimulation of certain areas in the brain and check that the signals for eye movement and vision, speech, motor function and memory are not impacted during surgery for tumour removal or epilepsy correction. This type of brain operation is performed in critical conditions where abnormalities occur in an area of the brain responsible for critical functions such as movement, speech, and vision.

During awake brain surgery, the surgeon or the nurses may continue to ask you questions about how you feel or generally keep you responsive through the brain surgery procedure to determine inadvertent nerve damage that occurs during tissue removal or device placement.

Are You The Right Candidate for the Right Candidate for Brain Surgery?

Brain surgery is suggested only after a condition is determined to be too severe to be resolved through medication or therapy. In some cases, a neurosurgeon may determine the requirement of brain surgery.

Spine disorder:

Pain, numbness, and tingling in the extremities may signal spinal damage. After testing for damage, a brain operation may be recommended to determine the issue causing these concerns.

Recurrent headaches:

While migraines are a common concern, chronic and recurrent headaches might signal a deeper issue, and a test for brain-related disorders may be suggested.

In case a cause requiring brain surgery is determined, a neurosurgeon will address the concern through one of the brain surgery types.

Trauma due to accident:

A major accident or even a fall can result in head injury and brain damage. It is typically addressed by brain surgery. It is best to get tested for brain damage soon after the incident to prevent the risk of brain oedema, abscess or haemorrhage.

Stroke:

A stroke can leave a portion of the brain damaged, and deep brain surgery may be recommended to restore functioning to all regions of the brain. Brain surgery may also be done to prevent a stroke due to plaque buildup or clots in major arterial vessels if diagnosed in time.

CSF buildup:

Cerebrospinal fluid (CSF) is present in the region surrounding the brain and is necessary for normal brain function. In a condition known as hydrocephalus, the CSF is formed and circulated in excess around brain tissue, causing brain swelling and pressure. Patients, especially children, suffer episodes of nausea and vomiting along with fever, and the underlying cause is resolved through brain surgery involving draining the fluid from affected regions.

Tumours:

If a patient is known to be suffering from brain tumours, brain surgery will be performed for a biopsy. If treatment is possible only through further surgery, a brain operation to remove the cancer will be done after the biopsy. Brain surgery can be recommended to remove both benign and malignant tumours.

Epilepsy:

Epilepsy patients do not always require brain surgery, but in several cases, seizure control is made possible through specialized brain surgery. It helps to improve the quality of life for the patient. Deep brain surgery or awake brain surgery may help a patient with epilepsy who will undergo tests to determine the possibility of a successful brain surgery procedure.

Trigeminal neuralgia:

The trigeminal nerve in the face is involved in a painful and chronic condition known as trigeminal neuralgia. Patients may experience extreme pain in the lower jaw regions. Brain surgery can address the nerve damage here.

How Do I Prepare for Brain Surgery?

Doctors perform several assessments to determine if brain surgery can be performed on a patient. These tests include blood tests for hormonal imbalance and other chemical factors, an electrocardiogram (EEG) to determine heart function, and X-rays and MRI scans.

These tests allow a neurosurgeon to determine if brain surgery puts you at an elevated risk for future concerns and assessments that typically occur over 1-3 weeks before brain surgery. They also allow the doctor to decide which brain surgery procedure will suit a patient and the expected results of brain surgery recovery.

Brain surgery preparation will also include a discussion with your doctor on what medication should be continued and which ones need to be stopped before the operation. They will also discuss the drug or food allergies to help determine the diet and postoperative medication. Medical history, family history of blood or brain disorders and alcohol usage are all part of the preparatory steps undertaken during a consultation with the neurosurgeon before the brain surgery procedure. Psychological support may be recommended for some patients.

Complications and Risks that May Arise

As with every invasive procedure, brain surgery comes with a few risks despite much progress in safety and precision. Some of the more severe brain surgery side effects involve:

Bleeding: Brain surgery can cause unforeseen bleeding in the brain region, which may be resolved if it happens under medical observation.
Allergic reactions: Reactions to anaesthesia have been noted in some cases but are otherwise rare.
Blood clots: Thrombosis in the brain can cause a stroke if left unattended, and brain surgery may sometimes have this as a side effect.
Brain swelling: Swelling can occur due to trauma or fluid buildup in the brain after a brain operation.
Coma: If brain surgery is unsuccessful, a patient may fall into a lengthy period of unconsciousness called a coma and sometimes may go into a vegetative state. However, most brain surgeries today show a high success rate, and such a case is rare.
Infection: Infection in the area where the brain surgery procedure was carried out can cause complications such as swelling and further brain damage.
Amnesia: During brain surgery, short-term or long-term memory loss may occur due to nerve damage.
Impairment of bodily functions: Speech, vision and motor coordination are controlled by the nervous system, and brain damage from brain operation can affect any of these functions.
Seizures: In some instances, seizures may be triggered during brain surgery and caused by damage to the nerve centres in the brain.

How Do I Recover from Brain Surgery?

Brain surgery recovery is a gradual process and can take two months and sometimes more. It eventually improves the quality of the patient's life and is worth the patience. A recovery plan is created by the team treating you. All steps of the treatment plan after brain surgery must be followed so that subsequent complications are avoided.

Typically, a brain surgery procedure requires that a patient be monitored in the hospital for a few days, depending on the type of brain surgery performed. In the case of a minimally invasive brain operation, the patient can leave within 2-3 days after the procedure, depending upon overall patient health and the doctor's determination of the risk of subsequent complications. Post-operation assessment is continual during the hospital stay and involves frequent testing of responses and blood flow.

Brain surgery recovery is often aided by lifestyle changes involving a more active lifestyle with less stress, reduction in consumption of alcohol and frequent check-ups to monitor symptoms. Brain surgery is known to make patients very weak and tired immediately after the procedure, and the body must have adequate rest at this time.

In some cases, physiotherapy or speech therapy is recommended to patients who have undergone the brain surgery procedure to help with rehabilitation. Psychological therapy may be necessary if major life and lifestyle changes are foreseen due to brain operation.

Precautions to Take After Brain Surgery

Caring for the wound made during the brain surgery procedure is vital during the recovery time. Inadvertent poking or stretching in the area of the wound may cause a suture to open and involve a risk of further brain damage.
Rest and lowered stress are two major factors that aid in a speedy recovery after brain surgery. Check with your doctor to understand what steps would help to ensure a holistic recovery after the procedure.
Follow-up clinic visits to discuss symptoms and postoperative assessments are suggested even after brain surgery recovery.

Frequently Asked Questions

Q1. What can I expect after my brain surgery procedure?
A1. In most cases, a return to everyday life with improved energy and activity levels and the removal of any impairments resulting from brain damage are expected after brain surgery. Depending on the specific concern, the type of brain surgery, and overall health, you can expect to live a healthier life with a prolonged lifespan. In some cases, significant life changes, such as changing a job, may become necessary. Diet and exercise plans may also differ from what was followed before the surgery. You can expect some tiredness in the initial weeks following the brain operation.

Q2. What is the survival rate after brain surgery?
A2. Brain surgery survival rates depend on the severity of the damage to be corrected, the type of surgery to be performed, and the patient's age and health. On average, brain surgery's long-term survival rate can be between 50-70%, except in cases of malignant tumours, where chances are lowered. In cases of brain operations performed for non-tumour-related brain damage, the chances of survival are significantly enhanced.

Q3. Can I work out after brain surgery?
A3. Working out involving heavy lifting and strenuous running is to be strictly avoided after a brain operation. Any activity that may cause sudden internal movements and strain, such as pushing or swimming, is also not recommended.

It is necessary to consult with your doctor after brain surgery before starting any intense physical activity and get a complete follow-up assessment performed.

Q4. How long does it take to recover from a brain surgery procedure?
A4. Recovering from a brain tumour operation can take some time. Every individual takes their own time to recover from a brain tumour surgery. You may need to stay in the hospital for about 3-10 days after the surgery is complete. However, the length of your stay in the hospital also depends on your operation and how long you take to recover. It can be challenging to join work after a brain surgery immediately.

Q5. How risky is brain surgery?
A5. Brain surgery is done to help treat problems that occur in the brain and its surrounding structures. Some of the risks that can arise during a brain surgery are:

Reaction to anaesthetic medicines
Breathing problems
Blood clots and infections
Speech and memory problems, weakness in muscles. These may last for some time and go away after that
Bleeding in the brain
Stroke
Seizures
Brain infection
Brain swelling

Q6. How long do I have to stay in the hospital for brain surgery?
A6. It often takes some time to return to normal activities after a brain surgery. To completely heal, you will need to rest amply. Each person requires a different time to recover after their surgery. The healing time depends on

The procedure followed to remove the brain tumour
The location of the tumour
The areas affected as a result of the surgery
Your age and overall health at the time of surgery.
Generally, you may need to stay 2-5 days in the hospital after the surgery.

Q7. Will I be able to drive after brain surgery?
A7. Driving is a complex activity requiring several cognitive and behavioural skills and decent coordination. You may retain part of your driving abilities and can return to driving. However, it's essential to adhere to the legal requirements. It helps to take precautions such as taking a driving assessment. Therefore, after surgery, you may be at risk of causing injury to yourself and others. As per law, you must inform the legal authorities if you plan to resume driving after brain surgery. You may also have to pay a fine. If you tell them of medical standards, you should resume driving 6-12 months after surgery.

Q8. How do I prepare for brain surgery?
A8. Before your brain surgery begins, you must pass an assessment. It will help to check whether you're fit for surgery. It includes tests to check if you're fit for anaesthetic, fit for recovery, blood tests to check if your kidneys are working, ECG to check your heart functioning and X-rays and MRI scans. Your doctor will brief you about the entire procedure a week or two before the surgery. You can share any doubts or questions you have now with the surgeon. You may need to take some medicines before the surgery as per your doctor's advice. There can be some breathing exercises, too, to help you deal with the anxiety.

Q9. What are the different types of brain surgery?
A9. A brain surgery is done to treat the brain and its parts. There can be various types of brain surgeries:

Craniotomy involves creating an incision for a bone flap to remove tumours, aneurysms, or abnormal brain tissues.
Biopsy - This involves removing a small part of brain tissue to examine under a microscope
Minimally invasive endonasal endoscopic surgery - In this case, surgeons remove tumours or lesions through the nose and sinus with the help of an endoscope.
Minimally invasive neuro endoscopy - In this case, endoscopes are used to remove brain tumours
Deep brain stimulation - This involves inserting a small electrode in your brain to send electrical signals

Q10. What happens after brain surgery?
A10. Immediately after the surgery, you'll be monitored closely to ensure everything is working correctly and that there are no complications. You'll mostly be made to sit upright to prevent swelling of your face and brain. The recovery from the surgery depends on the type of surgery done. How long you stay in the hospital will depend on the success of your recovery. You may have to take pain medications during this time. Before leaving the hospital, your doctor will tell you how to care for your wounds