
Open brain surgery is a surgical treatment method that allows direct surgical intervention in the affected area of the brain. This procedure is performed by creating a surgical opening in the skull with the purpose of directly visualizing the brain tissue and treating it when necessary. Open brain surgery plays an important role in the treatment of various health problems that require reaching deep into the brain, especially in conditions such as large tumors, vascular occlusions, brain hemorrhages, aneurysms, and head traumas.
During open brain surgery, the procedure is generally performed with precision by using microscopic devices and advanced technology-supported equipment. Intervening in the right area without damaging the brain tissue requires great expertise. Thanks to the developing technology of today, open brain surgery procedures have become much safer. New-generation imaging technologies, neuronavigation systems, and microsurgical techniques enable surgeons to navigate more accurately inside the brain. These technologies help the surgeon intervene in the correct area more quickly and safely. In addition, patients' postoperative recovery times are significantly shortened.
Open brain surgery plays a life-saving role, especially in brain diseases requiring emergency intervention. Surgical treatment of brain tumors, vascular occlusions, and aneurysms can prevent life-threatening dangers in advanced cases. During open brain surgery, the operation process is managed in a very controlled manner with the careful protection of the meninges, the use of microsurgical techniques, and the support of advanced imaging systems.
Especially in terms of improving the patient's quality of life, the treatment plan and recovery process applied after open brain surgery are of great importance. This surgical method, applied with the correct indication, helps eliminate harmful structures in the brain tissue and preserve brain functions.
Why Is Open Brain Surgery Performed?
Open brain surgery is a very important surgical intervention performed to treat serious health problems that threaten the structure or functions of the brain. It is a method frequently resorted to in the treatment of progressive and life-threatening diseases that require reaching deep into the brain and do not respond to medication. The most fundamental aim of the surgery is to improve the patient's quality of life and save his life by eliminating the structures that disrupt or threaten the brain's functions.
Open brain surgery can be performed with many different surgical techniques used in modern medicine. Microsurgery, neuronavigation systems, high-resolution imaging technologies, and microscopic surgery are technologies frequently used in such operations. Open brain surgery is generally applied in severe health problems related to the brain, and this operation is of critical importance in terms of saving vital functions.
Open brain surgery is usually preferred for advanced, high-risk, and life-threatening brain diseases that cannot be controlled with medication therapy. Such diseases progress over time and, if left untreated, can further worsen the patient's quality of life and ultimately lead to fatal results.
In Which Situations Is Open Brain Surgery Necessary?
Open brain surgery may be necessary for a range of different health conditions. The brain is a very sensitive organ of the body, and any disease or problem can affect the normal functioning of the brain. Therefore, open brain surgery can be performed to treat many conditions that threaten the health of the brain.
The necessity of performing open brain surgery may arise in the following situations:
Brain tumors (benign or malignant)
Brain tumors can lead to serious health problems due to the uncontrolled growth of brain tissue. The growth of the tumor can disrupt brain functions by putting pressure on surrounding tissues. The spread of cancerous cells into the brain tissue may require surgical intervention. Open brain surgery ensures the accurate removal of the tumors.
Brain hemorrhages
Brain hemorrhages can occur due to reasons such as head trauma, vascular rupture, or high blood pressure. Hemorrhages in the brain severely disrupt brain functions and require immediate intervention. Thanks to open brain surgery, a direct intervention is made to the hemorrhage area, and brain damage can be prevented.
Aneurysm (vascular ballooning)
Ballooning occurring in the brain vessels carries the risk of rupture and can lead to a brain hemorrhage. When a rupture occurs, serious damage develops in the brain. Clipping these aneurysms via open brain surgery helps prevent rupture.
Arteriovenous malformation (AVM)
Congenital abnormalities of the vascular structures in the brain can create a risk of hemorrhage. Additionally, AVMs can lead to neurological problems. These abnormalities can be corrected with open brain surgery, preventing the risk of hemorrhage and neurological problems.
Brain traumas
Traumas such as skull fractures, accumulations of blood (hematoma), or foreign objects can severely affect the function of the brain. In such cases, open brain surgery is applied to relieve the pressure formed on the brain.
Refractory epilepsy
Epilepsy seizures sometimes cannot be controlled with drug therapy. The source of the seizures can be specific areas located within the brain tissue. Open brain surgery can improve patients' quality of life by eliminating the source of the seizures.
Pressure caused by a mass, cyst, or infection
Cysts or infections present in the brain can cause loss of function by compressing the brain tissue. Brain functions can be preserved by clearing these masses or infections with open brain surgery.
Fundamental Aims of Open Brain Surgery
Open brain surgery is performed to treat diseases that create harmful effects on the brain. The fundamental aim of this surgery should be to eliminate diseases threatening the functions of the brain, reduce pressure, and restore the healthy functioning of the brain. Open brain surgery is performed with the following goals:
Reducing pressure on the brain: A tumor, hemorrhage, or another disease inside the brain can lead to loss of function by putting pressure on the brain tissue. Open brain surgery is applied to eliminate this pressure.
Repairing damaged tissue: Damage to the brain tissue can lead to larger problems over time. Thanks to open brain surgery, these damaged tissues are repaired, and the healing process is initiated.
Stopping hemorrhage: Hemorrhages in the brain can pose a life-threatening danger. Hemorrhage is stopped by intervening in the hemorrhage area with open brain surgery.
Removal of a tumor or mass: Tumors or cysts in the brain can seriously threaten the patient's health. Brain functions are preserved by removing these structures with open brain surgery.
Preserving vital functions: The patient's quality of life is enhanced by protecting the functions of the brain. Open brain surgery is particularly necessary for life-threatening diseases.
Stopping the progression of neurological problems: Neurological problems in the brain can lead to permanent damage when left untreated. Their progression is stopped by bringing these problems under control with open brain surgery.
Open brain surgery is a life-saving intervention in severe conditions threatening the structure of the brain. This surgical procedure, performed to regain the brain's functions and protect the patient's health, is an operation that is extremely sensitive and requires expertise.
Types of Open Brain Surgery
Open brain surgery can be applied with different techniques depending on the purpose of the intervention, the affected region of the brain, and the type of disease. Each type of surgery involves specific approaches targeting a particular problem. Today, these operations have become much safer thanks to microsurgery, neuronavigation, and advanced imaging systems.
The most frequently applied types of open brain surgery are listed below in a user-friendly and understandable manner:
1. Craniotomy
Craniotomy is the most common open brain surgery that provides access to the brain by removing a temporary bone flap from the skull. In which situations is it performed?
- Brain tumors
- Aneurysm
- AVM (arteriovenous malformation)
- Trauma-related hemorrhages
- Refractory epilepsy
2. Craniectomy
It is similar to a craniotomy, but the removed bone flap is not put back in place at the end of the procedure. When is it preferred?
- When there is severe brain edema,
- When the increase in pressure needs to be brought under control,
- In situations where post-trauma brain swelling is life-threatening.
3. Tumor Resection Surgeries
These are surgical procedures applied for the removal of brain tumors. Techniques used:
- Microsurgery
- Awake surgery
- Laser-assisted tumor removal
- Neuronavigation-assisted surgery
4. Aneurysm Clipping Surgery
This is the procedure of placing a titanium clip at the root of the aneurysm to prevent the ballooned area in the brain vessel from rupturing. What does it provide?
- It eliminates the risk of hemorrhage of the aneurysm.
- It stops the spread of existing hemorrhage.
5. AVM (Arteriovenous Malformation) Surgery
This is surgery performed to remove or correct the vascular tangle. In which situations is it performed?
- In AVMs with a high risk of hemorrhage,
- When it causes epilepsy that cannot be controlled with medication.
6. Hematoma Evacuation Surgeries
This is the procedure of evacuating blood accumulations formed after head traumas or vascular ruptures. When is it necessary?
- Loss of consciousness
- Life-threatening increase in brain pressure
- Severe headache and neurological deficits
7. Epilepsy Surgery
In epilepsy patients resistant to drug therapy, the section forming the source of the seizures is surgically removed. Techniques used:
- Focal resection
- Temporal lobe surgery
- Corpus callosotomy
How Is Open Brain Surgery Performed?
Open brain surgery is a detailed process performed step-by-step by high-tech equipment and an expert neurosurgery team. This process is meticulously planned both to ensure the patient's safety and to increase the success rate of the surgery. Open brain surgery is a critical procedure that enables direct intervention in the affected region of the brain. Below, we explain how the open brain surgery process is generally applied and how each stage is meticulously managed.
1. Preoperative Preparation
Before open brain surgery begins, the patient's health status is evaluated in a comprehensive manner. This stage is quite important for the open brain surgery process to be successful. During this preparation phase:
- Taking brain MRI and CT scans: The problematic area in the brain is identified.
- Blood tests and anesthesia evaluation: General health status is checked, and suitability for anesthesia is assessed.
- Surgery planning with the neuronavigation system: A brain map is generated to ensure the surgeon intervenes in the correct area.
- Informing the patient about the surgery: Detailed information about the operation is provided, preparing him for the process.
The goal is to ensure that the surgeon reaches the problem inside the brain via the safest route during open brain surgery.
2. Administration of Anesthesia
Open brain surgery is mostly performed under general anesthesia. However, in some cases, especially in tumor and epilepsy surgeries, the patient can be kept awake. In such surgeries, the awake surgery method is preferred. This method allows the preservation of speech, movement, and brain functions. The patient being conscious during open brain surgery helps the surgeon perform the procedure while preserving neurological functions.
3. Preparation of the Scalp and Making the Incision
During open brain surgery, the surgeon sterilizes the surgical field and makes an incision on the scalp appropriate for the planned region. This incision is aesthetically planned to follow the natural lines of the scalp. The scalp is carefully opened in a way that it can be closed back into place later during the surgery.
4. Craniotomy (Opening the Skull Bone)
Craniotomy is the process of temporarily removing a bone flap from the skull during open brain surgery. This stage ensures that the surgeon safely reaches the affected region of the brain. This part of the open brain surgery process is a very sensitive procedure. The bone flap is fixed back into place with special plates and screws at the end of the procedure.
5. Reaching the Brain Tissue and Microsurgical Procedures
The surgeon advances toward the surface of the brain using a microscope and special micro-instruments. Reaching the brain tissue and performing an accurate intervention during open brain surgery is a step requiring great precision. The procedures performed at this stage vary according to the purpose of the surgery:
- If there is a tumor, it is removed: Tumors in the brain are removed using microsurgical methods.
- If there is an aneurysm, it is clipped: Balloonings in the brain vessel are prevented.
- If there is an AVM (Arteriovenous Malformation), the vascular tangle is cleared: Vascular abnormalities in the brain are corrected.
- If there is a hematoma, the blood is drained: Blood accumulations in the brain are cleared.
- If there is an epilepsy focus, the responsible region is removed: The region causing epilepsy seizures is excised.
Thanks to neuronavigation and neuromonitoring systems, the surgeon tracks the brain map in real time during open brain surgery, thus ensuring that the procedure is performed accurately and safely.
6. Hemostasis and Closure
After the entire procedure is completed, the surgeon stops the hemorrhage, the meninges are closed, and the skull bone is fixed back into place. During open brain surgery, small vessel hemorrhages are carefully checked. Finally, the scalp is closed with aesthetic stitches.
7. Intensive Care and Postoperative Monitoring
Following open brain surgery, patients are generally monitored in intensive care for a certain period. During this process, brain functions, the risk of hemorrhage, signs of infection, and the state of consciousness are closely monitored. The postoperative monitoring process is quite important in order to accelerate the patient's recovery and prevent complications.
Although these steps are generally similar in every type of open brain surgery, the details of the operation are shaped according to the general condition of the patient and the affected region of the brain.
Postoperative Recovery Process Following Open Brain Surgery
The recovery process following open brain surgery varies depending on the type of operation, the region of the brain intervened upon, the patient's general health status, and the reason for the surgery. However, in general, the process consists of a few stages: intensive care, hospitalization, home care, and long-term recuperation. Since this period requires both physical and mental healing, regular follow-up and patient process management are important.
1. First 24–48 Hours: Intensive Care Period
Immediately after the surgery, patients are taken to the intensive care unit. Conditions monitored during this stage:
- Level of consciousness
- Respiratory functions
- Brain pressure
- Risk of hemorrhage or edema
- Signs of infection
The duration of intensive care varies between 1–2 days for most patients, but may be prolonged in some severe cases.
2. Hospitalization Process
Patients leaving intensive care are admitted to the ward. This period generally lasts between 3–10 days.
Procedures performed during this process:
- Pain control
- Wound monitoring
- Neurological examinations
- Evaluations of movement, balance, and speech
If necessary, supportive treatments such as physical therapy and speech therapy can be initiated in the early period.
3. Home Recovery Period
After discharge, the patient's recuperation process continues at home. This process generally varies between a few weeks and a few months.
Points to consider at home:
- Regular use of medications recommended by the doctor,
- Keeping the incision area clean,
- Consulting a doctor in case of risky symptoms such as sudden headache, vomiting, or change in consciousness,
- Avoiding heavy lifting, bending, and strenuous activities.
Complaints such as mild fatigue, changes in sleep patterns, and concentration difficulties are considered normal during this period.
4. Rehabilitation and Functional Recovery
Some patients may need additional supportive therapies after surgery.
Rehabilitation methods:
- Physical therapy: Recuperation of walking, balance, and muscle strength losses.
- Speech therapy: Restoring language and speech functions.
- Neuropsychological support: Regulation of memory, attention, and mood.
Particularly in tumor, stroke, trauma, or epilepsy surgeries, these supports significantly accelerate recovery.
5. How Long Is the Full Recovery Period?
Every patient's recovery period is different, but the general framework is as follows:
- Initial recuperation: 2–6 weeks
- Return to daily life: 1–3 months
- Full recovery and regulation of brain functions: 6–12 months
This period may be shorter or longer in some patients. The location of the surgery, which regions of the brain were touched, and the patient's age are the main factors affecting this process.
Complaints Following Open Brain Surgery
Experiencing some temporary complaints following open brain surgery is quite normal. Surgical intervention on the brain and surrounding tissues can lead to various reactions throughout the body's natural healing process. Most of these complaints decrease over time and disappear completely. However, since certain symptoms can be precursors to more serious problems, they must be monitored carefully.
1. Headache
Headache is one of the most common complaints following open brain surgery. Why does it happen?
- Healing in the surgical area,
- Sensitivity in the meninges,
- Stitches on the scalp. (It mostly diminishes within a few weeks.)
2. Fatigue and Weakness
The body's energy requirement increases after brain surgeries. Therefore, patients may experience complaints such as:
- Getting tired easily,
- Desire for sleep,
- Low energy during the day.
This situation is a natural part of recovery.
3. Concentration and Memory Problems
Temporary distraction, forgetfulness, and difficulty focusing are common, especially in the first weeks. They generally improve over time and can be rapidly ameliorated with neuropsychological support if necessary.
4. Nausea and Vomiting
These complaints can generally arise due to:
- The effect of anesthesia,
- Postoperative medications,
- Changes in brain pressure.
The complaints ease within a few days.
5. Dizziness and Balance Problems
They can be observed especially after surgeries performed in areas close to the cerebellum or balance centers. Physical therapy accelerates the resolution of these symptoms.
6. Numbness or Tingling in the Scalp
Since the healing of nerve endings in the surgical area takes time, patients may experience:
- Numbness,
- Tingling,
- A mild stinging sensation. This complaint is generally temporary.
7. Vision or Speech Problems
Depending on the operated area, there may be temporary speech disorders or blurred vision. These conditions mostly regress within a few weeks.
Serious Symptoms to Watch For
Some complaints are not normal and require immediate intervention:
- Severe and persistent headache
- Clouded consciousness
- High fever
- Increasing vomiting
- Worsening speech disorder
- Loss of strength in the arms or legs
- Severe redness or inflammation at the stitch site
These symptoms may be a sign of risks such as brain hemorrhage, infection, or brain edema, and a doctor must be consulted immediately.
Risks of Open Brain Surgery
Although open brain surgery has become much safer today thanks to developing technology and modern surgical techniques, it carries certain risks just like any major surgical procedure. These risks may vary depending on the patient's general health status, the brain region where the surgery was performed, and the type of operation. Although most of the risks are rare, it is important that patients are informed about this before the surgery.
1. Risk of Infection
Just as in any surgical procedure, there is a risk of infection in open brain surgery. Possible types of infection:
- Meningitis
- Surgical site infection
- Redness and discharge on the scalp
Efforts are made to minimize this risk with sterile operating environments and antibiotic treatments.
2. Brain Hemorrhage
Brain hemorrhage may occur due to damage to blood vessels during or after the surgical procedure. Although this situation is rare, it may require emergency intervention.
3. Brain Edema (Swelling)
Temporary swelling may develop in the brain tissue following surgery. This situation:
- Headache,
- Nausea,
- Can manifest itself with symptoms such as a change in consciousness. It is generally brought under control with medications.
4. Loss of Neurological Function
The operated brain region may be responsible for important functions such as speech, movement, balance, or vision. Therefore, temporary or permanent problems may appear in some patients:
- Speech disorder
- Loss of strength in the arms or legs
- Balance problem
- Vision loss or blurred vision
Microsurgery and neuronavigation systems significantly reduce these risks.
5. Development of Seizures (Epilepsy)
New epilepsy seizures may be observed in some patients after surgery. They can generally be brought under control with drug therapy.
6. Cerebrospinal Fluid (CSF) Leakage
In case the meninges in the surgical area do not close completely, CSF leakage can occur. This situation is rare and is mostly treated with non-surgical methods.
7. Risks Related to Anesthesia
Just as in any major surgery, there can be certain risks related to anesthesia in open brain surgery:
- Allergic reaction
- Respiratory problems
- Heart rhythm disorders
These risks are minimized with a detailed preoperative anesthesia evaluation.
How Are Risks Minimized?
- An experienced neurosurgery team,
- Advanced imaging and navigation systems,
- Microscopic surgery techniques,
- Regular postoperative follow-up,
- The patient's compliance with medication usage and care recommendations all help reduce these risks to a minimum level.




