Subarachnoid Hemorrhage

9 min read

A subarachnoid hemorrhage (SAH) is a type of stroke caused by bleeding into the space surrounding the brain. It is a medical emergency that requires immediate treatment. SAH is a life-threatening condition that can cause severe complications, including brain damage, disability, and even death.

Causes of Subarachnoid Hemorrhage

The most common cause of SAH is a ruptured aneurysm, which is a weak spot in a blood vessel that balloons out and can burst. Other causes of SAH include head trauma, arteriovenous malformations (AVMs), and bleeding disorders.

Diagnosis of Subarachnoid Hemorrhage

Diagnosis of SAH typically involves a physical exam, imaging tests such as a CT scan or MRI, and a lumbar puncture (spinal tap). A lumbar puncture is used to detect the presence of blood in the cerebrospinal fluid, which is a sign of SAH.

Complications of Subarachnoid Hemorrhage

Complications of SAH can include hydrocephalus, brain damage, seizures, and stroke. Other complications include infection, coma, and death.

Prevention of Subarachnoid Hemorrhage

The best way to prevent SAH is to identify and treat any underlying conditions that may increase the risk, such as aneurysms or AVMs. It is also important to manage any risk factors, such as high blood pressure, smoking, and drug use.

Take the Subarachnoid Hemorrhage Assessment

Symptoms

  • Sudden, severe headache
  • Stiff neck
  • Nausea and vomiting
  • Loss of consciousness
  • Confusion
  • Seizures
  • Drowsiness
  • Blurred vision
  • Sensitivity to light

If you experience any of these symptoms, seek medical attention immediately. Early diagnosis and treatment can help reduce the risk of long-term complications.

Causes

Risk Factors for Subarachnoid Hemorrhage

The most common risk factor for SAH is a ruptured aneurysm. An aneurysm is a weak or thin spot in a blood vessel wall that can balloon out and fill with blood. If the aneurysm ruptures, it can cause bleeding in the brain, leading to a subarachnoid hemorrhage. Other risk factors for SAH include:

  • High blood pressure
  • Smoking
  • Heavy alcohol use
  • Family history of aneurysms
  • Certain medical conditions, such as arteriovenous malformations (AVMs) or cerebral arteritis

Diagnosis and Treatment of Subarachnoid Hemorrhage

If you experience symptoms of a subarachnoid hemorrhage, such as a sudden, severe headache, confusion, or loss of consciousness, seek medical attention immediately. Your doctor will likely order a CT scan or MRI to confirm the diagnosis. Treatment for SAH typically involves medications to reduce swelling in the brain and surgery to repair the aneurysm or AVM.

Getting a Diagnosis

Medical History

The doctor will ask about the patient’s medical history, including any recent head trauma, recent illnesses, and any medications the patient is taking. The doctor will also ask about any family history of stroke or other neurological conditions.

Physical Examination

The doctor will perform a physical examination to look for signs of SAH. These may include a stiff neck, headache, confusion, and changes in vision or speech. The doctor may also check the patient’s reflexes and strength.

Imaging Tests

Imaging tests are used to confirm the diagnosis of SAH. These tests may include a computed tomography (CT) scan, magnetic resonance imaging (MRI), or cerebral angiography. These tests can help the doctor identify the location and extent of the bleeding.

Treatment

Treatment for SAH depends on the severity of the condition. Treatment may include medications to reduce swelling and pressure in the brain, surgery to repair the damaged blood vessels, or a combination of both. In some cases, lifestyle changes such as quitting smoking and eating a healthy diet may also be recommended.

Questions for Your Doctor

Questions to Ask Your Doctor About Subarachnoid Hemorrhage

  • What caused the SAH?
  • What are the risks associated with SAH?
  • What are the treatment options?
  • What are the potential side effects of the treatment?
  • What lifestyle changes should I make to reduce my risk of SAH?
  • What follow-up care is necessary?
  • Are there any support groups or resources available to help me manage my condition?

It is important to ask questions and be an active participant in your care. Your doctor is there to help you understand your condition and make informed decisions about your treatment. Be sure to take notes during your appointment and follow up with any questions or concerns you may have.

Treatment

Medications

Medications are often used to reduce the risk of further bleeding and to reduce the pressure on the brain. These may include anticonvulsants to prevent seizures, diuretics to reduce fluid buildup, and vasoconstrictors to reduce blood vessel dilation. In some cases, medications may be used to reduce the risk of aneurysm re-rupture.

Surgery

Surgery may be necessary to repair the aneurysm or to remove any blood clots that have formed. Surgery may also be used to reduce the pressure on the brain or to repair any damage caused by the bleed. In some cases, a shunt may be placed to drain excess fluid from the brain.

Lifestyle Changes

Making lifestyle changes can help reduce the risk of further bleeding and improve overall health. These may include quitting smoking, reducing alcohol consumption, eating a healthy diet, and exercising regularly. It is also important to get enough rest and to manage stress levels.

Drugs & Medications

Medications for Subarachnoid Hemorrhage

The main medications used to treat SAH are:

  • Vasoconstrictors: These drugs help reduce the risk of further bleeding by narrowing the blood vessels in the brain. Examples include ergotamine, sumatriptan, and dihydroergotamine.
  • Antiplatelet drugs: These drugs help reduce the risk of further bleeding by preventing the formation of blood clots. Examples include aspirin, clopidogrel, and ticlopidine.
  • Anticoagulants: These drugs help reduce the risk of further bleeding by preventing the formation of blood clots. Examples include heparin, warfarin, and enoxaparin.
  • Corticosteroids: These drugs help reduce pressure on the brain by reducing inflammation. Examples include prednisone and dexamethasone.
  • Calcium channel blockers: These drugs help reduce pressure on the brain by relaxing the blood vessels. Examples include nimodipine and verapamil.

Side Effects of Medications for Subarachnoid Hemorrhage

The medications used to treat SAH can cause side effects, including:

  • Headache
  • Nausea and vomiting
  • Dizziness
  • Diarrhea
  • Fatigue
  • Rash
  • Low blood pressure
  • Abnormal heart rhythm
  • Bleeding or bruising

It is important to talk to your doctor about the potential side effects of any medications you are taking for SAH. Your doctor can help you manage any side effects you may experience.

Conclusion

Subarachnoid hemorrhage is a life-threatening condition that requires immediate medical attention. Treatment typically involves medications to reduce the risk of further bleeding, reduce pressure on the brain, and prevent complications. Common medications used to treat SAH include vasoconstrictors, antiplatelet drugs, anticoagulants, corticosteroids, and calcium channel blockers. These medications can cause side effects, so it is important to talk to your doctor about any potential risks.

Diet

What to Eat

A healthy diet for subarachnoid hemorrhage should include plenty of fruits, vegetables, whole grains, and lean proteins. Eating a variety of foods from each food group can help ensure that you get all the nutrients you need. Here are some specific foods to include in your diet:

  • Fruits: Apples, oranges, bananas, berries, and other fresh fruits
  • Vegetables: Leafy greens, broccoli, carrots, tomatoes, and other vegetables
  • Whole grains: Oats, quinoa, brown rice, and other whole grains
  • Lean proteins: Fish, chicken, beans, and other lean proteins
  • Healthy fats: Avocados, nuts, and seeds

What to Avoid

In addition to eating a healthy diet, it’s important to avoid unhealthy foods that can increase your risk of subarachnoid hemorrhage. These include:

  • Processed foods: Packaged snacks, frozen meals, and other processed foods
  • Sugary drinks: Soda, energy drinks, and other sugary beverages
  • Refined grains: White bread, white rice, and other refined grains
  • Unhealthy fats: Fried foods, processed meats, and other foods high in saturated fat

Conclusion

Eating a healthy diet is an important part of reducing your risk of subarachnoid hemorrhage and improving your recovery. Aim to include plenty of fruits, vegetables, whole grains, and lean proteins in your diet, and avoid processed foods, sugary drinks, refined grains, and unhealthy fats.

Lifestyle

Get Regular Exercise

Regular exercise is important for everyone, but especially for those with subarachnoid hemorrhage. Exercise can help improve your overall health, reduce stress, and improve your mood. Talk to your doctor about what type of exercise is best for you. Start slowly and gradually increase the intensity and duration of your workouts.

Eat a Healthy Diet

Eating a healthy diet is essential for managing subarachnoid hemorrhage. Eating a balanced diet that includes plenty of fruits, vegetables, whole grains, and lean proteins can help you maintain a healthy weight and reduce your risk of complications. Avoid processed foods, sugary drinks, and unhealthy fats.

Get Enough Sleep

Getting enough sleep is important for managing subarachnoid hemorrhage. Aim for 7-8 hours of sleep each night. If you have trouble sleeping, talk to your doctor about ways to improve your sleep quality. Avoid caffeine and alcohol before bed, and create a relaxing bedtime routine.

Manage Stress

Stress can worsen the symptoms of subarachnoid hemorrhage, so it is important to find ways to manage your stress. Exercise, meditation, and deep breathing can all help reduce stress. Talk to your doctor about other ways to manage stress, such as counseling or support groups.

Stay Hydrated

Staying hydrated is important for managing subarachnoid hemorrhage. Drink plenty of water throughout the day to keep your body hydrated. Avoid sugary drinks and alcohol, which can dehydrate your body.

Take Medications as Prescribed

It is important to take your medications as prescribed by your doctor. This will help you manage your condition and reduce your risk of complications. Talk to your doctor if you have any questions or concerns about your medications.