Surgical and Endovascular Treatments for Hemorrhagic Stroke

When a hemorrhagic stroke causes significant bleeding in or around the brain, treatment may require surgical or endovascular intervention. These procedures are used to manage the effects of the hemorrhage, such as pressure on the brain or blood accumulating in areas where it can cause further damage. In some cases, treatment is also needed to repair or close off the blood vessel responsible for the bleeding.

The appropriate procedure depends on the type, location, and severity of the hemorrhage, its underlying cause, and the patient's neurological condition. While some patients can be treated with medication and close monitoring, others may require an urgent procedure to remove blood, relieve pressure, or prevent further bleeding. 

This guide covers the main surgical and endovascular treatment options for hemorrhagic stroke, including hematoma evacuation, ventricular drainage, aneurysm clipping, and endovascular coiling.

Hemorrhagic Stroke vs. Ischemic Stroke: Why Treatment Is Different

Although both hemorrhagic and ischemic types of stroke interrupt normal brain function, they are caused by very different problems. An ischemic stroke occurs when a blood vessel supplying the brain becomes blocked, usually by a blood clot. A hemorrhagic stroke occurs when a blood vessel ruptures and blood leaks into the brain or the space surrounding it.

Because the underlying problems are essentially opposite, their treatment approaches are also very different. Ischemic stroke treatment focuses on restoring blood flow to the affected part of the brain, while hemorrhagic stroke treatment focuses on controlling the bleeding and preventing the resulting pressure and damage from worsening.

The next step is therefore to determine whether the hemorrhage is severe enough to require surgery or another intervention.

When Is Surgery Needed for Hemorrhagic Stroke?

The first step in treating a hemorrhagic stroke is determining how much damage the bleeding has caused and whether it is creating an immediate threat to the brain. A smaller hemorrhage that is not putting significant pressure on surrounding structures may be treated without surgery. These patients are closely monitored while doctors control factors such as blood pressure and manage other medical problems that could worsen the bleeding.

Surgery may be needed when:

• A large amount of blood is putting pressure on the surrounding brain tissue.
• The patient's neurological condition is getting worse.
• Blood has entered the brain's ventricles and is blocking the normal circulation of cerebrospinal fluid.
• Fluid has accumulated inside the brain, causing hydrocephalus and dangerously increasing pressure inside the skull.
• The hemorrhage has been caused by a ruptured cerebral aneurysm or another abnormal blood vessel.
• The source of bleeding needs to be treated to prevent another hemorrhage.

The decision is made by a multidisciplinary team that may include a neurosurgeon, neurologist, neurointensivist, and interventional neuroradiologist. Brain imaging is used to determine where the bleeding has occurred, how extensive it is, and whether a structural abnormality is responsible. The patient's neurological status, age, and general health are also considered.

Hematoma Evacuation for Hemorrhagic Stroke

One of the main surgical procedures used for selected hemorrhagic strokes is hematoma evacuation. A hematoma is a collection of blood that forms after a blood vessel ruptures. When a large hematoma develops directly inside the brain, it can compress the surrounding brain tissue and, in severe cases, push important brain structures out of their normal position.

The purpose of hematoma evacuation is to remove the accumulated blood and relieve this pressure. Depending on the location and size of the hemorrhage, the surgeon may use either an open or minimally invasive approach.

With an open procedure, called a craniotomy, the surgeon temporarily removes a section of the skull to reach the hematoma directly. The blood is then removed to decompress the affected area of the brain.

In selected patients, a minimally invasive approach may be possible. A small opening is made in the skull, and a catheter or endoscope is guided to the hematoma. Imaging technology can help the surgeon locate the blood precisely and remove it while limiting disruption to the surrounding brain tissue.

When Is Hematoma Evacuation Recommended?

Hematoma evacuation is not appropriate for every intracerebral hemorrhage. The location of the bleeding is particularly important because surgery itself can damage healthy brain tissue if the hematoma is in a deep or difficult-to-reach area.

Surgery may be particularly important when:

• A cerebellar hemorrhage is compressing the brainstem.
• The hemorrhage is causing hydrocephalus.
• A large hematoma is producing significant pressure on the brain.
• A patient with a lobar hematoma is experiencing worsening neurological function.

By contrast, hemorrhages deep within structures such as the thalamus or basal ganglia are often managed medically because reaching these areas surgically can carry a high risk of additional neurological injury.

Minimally invasive approaches, including stereotactic aspiration and endoscope-assisted evacuation, have also developed in recent years. Stereotactic aspiration uses CT or MRI guidance to precisely position a needle or catheter inside the hematoma so that the accumulated blood can be removed through a small opening. These techniques may be considered for carefully selected patients.

Ventricular Drainage After Hemorrhagic Stroke

A hemorrhagic stroke can sometimes cause blood to enter the ventricles, the fluid-filled chambers located inside the brain. The ventricles normally contain cerebrospinal fluid (CSF), which surrounds and protects the brain and spinal cord.

When blood enters the ventricles, it can block the normal circulation of CSF. As fluid builds up, pressure inside the skull increases. This condition is called hydrocephalus and can become life-threatening if it is not treated.

In this situation, doctors may perform ventricular drainage using an external ventricular drain (EVD), also called a ventriculostomy.

During a ventriculostomy, a neurosurgeon places a thin catheter through a small opening in the skull and into one of the brain's ventricles. The catheter provides a route for excess cerebrospinal fluid and blood-stained fluid to drain from the brain.

An external ventricular drain can also be used to monitor pressure inside the skull, allowing the medical team to see whether treatment is effectively reducing intracranial pressure.

The drain is generally temporary and may remain in place for several days while the blood clears and the patient's condition is monitored. In selected cases, medication may be administered through the drain to help clear blood from the ventricles.

Brain Aneurysm Surgery After Hemorrhagic Stroke

Not all hemorrhagic strokes are caused by an aneurysm. However, when a brain aneurysm ruptures, it can cause a particularly serious form of hemorrhagic stroke called subarachnoid hemorrhage.

A brain aneurysm is a weakened area in the wall of a blood vessel in the brain. As the weakened section expands, it can eventually rupture and release blood into the space between the brain and the thin membranes that surround it.

A ruptured aneurysm requires urgent treatment because the weakened blood vessel can bleed again. In this situation, the goal of the treatment of aneurysm in brain is to permanently or effectively prevent blood from entering the aneurysm.

The two main approaches used in the treatment of cerebral aneurysms are:

• Aneurysm clipping, also called surgical clipping or microsurgical clipping
• Endovascular coiling, also known as aneurysm coiling

Although both procedures are designed to prevent further bleeding, they reach the aneurysm in very different ways.

Aneurysm Clipping (Surgical or Microsurgical Clipping)

Aneurysm clipping, also called surgical clipping or microsurgical clipping, is an open surgical procedure used to prevent blood from entering a brain aneurysm. During the procedure, the surgeon performs a craniotomy, creating an opening in the skull to reach the affected blood vessel. Using a surgical microscope, the surgeon carefully identifies the aneurysm and the arteries around it before placing a small metal aneurysm clip across the aneurysm's neck. The neck is the narrow area where the aneurysm connects to the main artery.

The clip seals off the aneurysm so that blood can no longer enter it, while normal blood flow through the main artery is maintained. Once successfully clipped, the aneurysm is excluded from the circulation, significantly reducing the risk of future rupture or bleeding.

The surgical approach depends on the aneurysm's location and relationship with nearby blood vessels and nerves. For example, a pterional craniotomy, made near the temple, may be used to reach aneurysms involving the middle cerebral artery, anterior communicating artery, or internal carotid artery. Other aneurysms may require a different surgical approach.

An aneurysm operation typically takes several hours, although the exact duration depends on the location and complexity of the aneurysm.

Are Aneurysm Clips Safe for MRI?

Patients who have undergone brain aneurysm surgery may need an MRI scan later in life, so aneurysm clip MRI safety is an important consideration.

Modern aneurysm clips are generally made from non-ferromagnetic materials such as titanium alloys and are compatible with MRI under specified conditions. However, some older clips were made from materials that can interact dangerously with an MRI's magnetic field.

For this reason, patients should keep documentation identifying the exact type and model of their aneurysm clip and provide this information before having an MRI. This is particularly important for people who underwent aneurysm clipping before the late 1990s, when some older clip designs were still in use.

Endovascular Coiling for Cerebral Aneurysm

Endovascular coiling is an alternative to open aneurysm surgery. Instead of opening the skull, the doctor reaches the aneurysm from inside the blood vessels. During coiling for cerebral aneurysm, an interventional neuroradiologist introduces a thin catheter through an artery, usually through a small opening in the wrist or groin. The catheter is guided through the blood vessels until it reaches the aneurysm.

Soft platinum coils are then placed inside the aneurysm. These coils encourage blood to clot within the aneurysm and reduce blood flow into the weakened area. As a result, the aneurysm is effectively separated from the normal circulation, reducing the risk of rupture or rebleeding.

This procedure is also called aneurysm coiling or coiling of aneurysm. Because the skull does not need to be opened, endovascular coiling is less invasive than surgical clipping. It generally involves a shorter recovery period and can be particularly useful for aneurysms that can be safely reached through the blood vessels.

However, coiling also has limitations. Some coiled aneurysms can reopen over time as the coils become compressed, meaning that patients may require follow-up imaging and, in some cases, additional treatment. Aneurysms with a wide neck or complex anatomy may also be difficult to treat safely with coiling.

Surgical Clipping and Endovascular Coiling: Which Treatment to Use?

Both surgical clipping and endovascular coiling are established methods for treating cerebral aneurysms, but the choice between them is not the same for every patient. The medical team considers the aneurysm's anatomy as well as the patient's overall condition. Important factors include:

• Whether the aneurysm is ruptured or unruptured
• Its size and location
• Its shape and the width of its neck
• Whether it can be safely reached through the blood vessels
• The patient's age and general health
• The potential risks and benefits of each treatment
• The expertise and technology available at the treating center

For some ruptured aneurysms, endovascular coiling may be preferred because it can treat the aneurysm without opening the skull. For other aneurysms, particularly those with anatomy that makes coiling difficult, microsurgical clipping may provide a more suitable or durable option.

The decision is therefore made after detailed review of brain imaging and the aneurysm's anatomy rather than simply choosing the less invasive procedure.

An unruptured aneurysm may also not require immediate treatment. Depending on its size, location, appearance, and the patient's individual risk factors, doctors may recommend monitoring it with regular imaging rather than performing surgery.

Recovery After Hemorrhagic Stroke Surgery

Recovery depends not only on the type of surgery but also on the severity of the hemorrhagic stroke that led to it. A patient treated for an unruptured aneurysm may have a relatively straightforward recovery, while someone treated after a major subarachnoid hemorrhage may require a much longer period of intensive care and rehabilitation.

After brain aneurysm surgery, recovery also differs between clipping and coiling. Because coiling does not require a craniotomy, recovery after brain aneurysm coiling is generally faster than recovery after open surgery. Patients treated for an unruptured aneurysm with coiling are often discharged within one to two days and may return to normal activities within two to four weeks.

Recovery after microsurgical clipping takes longer because the patient must recover from the craniotomy as well as the aneurysm treatment. Hospitalization may last around five to ten days, with a return to full activity typically taking four to six weeks.

The situation is different when surgery has been performed following a subarachnoid hemorrhage. In these patients, recovery is influenced by the initial severity of the bleeding and by complications that can develop afterward.

One important complication is cerebral vasospasm. This occurs when arteries in the brain become narrower in the days following a subarachnoid hemorrhage. The narrowed arteries can reduce blood flow to the brain and cause additional neurological injury.

Patients recovering from a significant hemorrhagic stroke may therefore require neurological monitoring and rehabilitation after the initial surgical treatment. The extent of rehabilitation depends on the neurological problems caused by the original hemorrhage and any complications that occurred during treatment.

Life Expectancy After Aneurysm Clipping and Hemorrhagic Stroke Surgery

Life expectancy after aneurysm clipping depends primarily on the severity and type of the original hemorrhage rather than on the surgical procedure alone. Patients who have an unruptured aneurysm treated successfully before it ruptures may have a long-term life expectancy similar to that of the general population once the aneurysm has been effectively excluded from circulation.

The outlook is more variable after a ruptured aneurysm or intracerebral hemorrhage because the initial bleeding can cause permanent brain injury. Complications such as hydrocephalus and cerebral vasospasm can also affect long-term recovery.

Patients who receive rapid stroke treatment while they are in relatively good neurological condition generally have better outcomes. However, prognosis must be assessed individually based on the severity of the hemorrhage, neurological status, imaging findings, and complications that occur during recovery.

Surgical Treatment of Hemorrhagic Stroke at Medical Park

Medical Park Hospitals provide surgical and endovascular treatment for hemorrhagic stroke through specialist teams that include brain and nerve surgeons, interventional radiologists, and neurologists. Treatment is selected according to the cause and severity of the hemorrhage. Depending on the patient's condition, procedures may include hematoma evacuation, minimally invasive hematoma aspiration, external ventricular drain placement, ventriculostomy, microsurgical clipping, or endovascular coiling.

For patients with a ruptured cerebral aneurysm, the specialist team evaluates the aneurysm's location and anatomy to determine whether clipping or coiling is the more appropriate treatment. Patients with large intracerebral hemorrhages can also be assessed for surgical hematoma evacuation, while those who develop hydrocephalus may require ventricular drainage.

Ruptured aneurysms and significant intracerebral hemorrhages are managed as emergencies through Medical Park's dedicated Stroke Center units, with access to advanced neuroimaging, neurosurgical and endovascular intervention, and specialist intensive care.