Right hemisphere stroke

Right hemisphere stroke

stroke occurs when blood  flow to our brain get compromised. This is caused by a blood clot blocking a vessel in our brain, or a torn vessel bleeding into our brain. The right side (hemisphere) of  brain controls the left side of your body. . It also controls certain calculation tasks, such as judging distance, size, speed, or position A stroke in the right hemisphere often causes paralysis in the left side of the body. This is known as left hemiplegia.

what causes  Right hemisphere stroke 
                              Ischemic stroke: when an artery to our brain gets blocked which may be caused by having plaque in an artery. Plaque  occurs  when fatty deposits and other things build up in an artery or blood clot  blocks the artery.The clot can break loose from an artery somewhere else and travel to the brainstem. This clot may get stuck in a narrow blood vessel, stopping blood and oxygen from reaching our brain. This is called an ischemic stroke. Most strokes are ischemic strokes.

Hemorrhagic stroke: some times,  blood vessel may break and leak if a clot gets stuck in it, or the vessel wall is weak. Blood then flows out of the vessel and into brain tissue. This is called a hemorrhagic stroke

Risk factors of Right hemisphere stroke

1) older people of or above 55 years of age

2) women using birth control pills, or  take  replacement medicine after menopause.

3)  father or mother had a stroke,

4) have high blood pressure, or blood vessel or sickle cell disease that was not treated.

5)  have atrial fibrillation, diabetes or other heart or blood vessel condition

Signs and Symptoms  of right sided stroke

the common symptoms of right sided stroke are

a)  these people generally  have problems with their spatial and perceptual abilities due to which they  misjudge distances (leading to a fall) or be unable to guide their hands to pick up an object, button a shirt or tie their shoes.  Due to  their impaired ability to judge spatial relationships, survivors of right-hemisphere strokes often have judgment difficulties that show up in their behavioral styles.

b)  these patients  also experience left-sided neglect.. left-sided neglect causes the survivor of a right-hemisphere stroke to “forget” or “ignore” objects or people on their left side.

c)  they may be unable to remember what they ate for breakfast that morning.

d)  Vision problems are common these people  may not see objects to their left.

e)  Language and speech problems are present.they   may not be able to understand what others are saying. these people  may have trouble in  reading ,  writing and speaking. When  they talk, they  may not show any feeling.

 Treatment of right hemisphere  stroke

Treatment depends on what causes stroke, signs and symptoms of the patient
1) Cholesterol medicine should be given to  decrease (lower) the amount of cholesterol (fat) in the blood.

2)  if stroke was caused by a blood clot,  following medicines should be given

Thrombolytics: This medicine is given to break apart blood clots and help blood flow more easily.

                Aspirin: This is medicine that may be given to help thin the blood to keep blood clots from forming.

                 Antiplatelets: This medicine is given to prevent blood clots from forming.

3) sedation  medicine will  help  to decrease the pressure in our brain. It can also help to decrease pain

4) other medicine to treat diabetes, high blood cholesterol,  high blood pressure or to prevent seizures

5) surgery should be done if medication is not helpful.it include

Ventriculostomy:  it should be done if  too much fluid and swelling around our brain is present, a tube may be placed through skull to drain the fluid. This tube also checks the pressure in our brain.

Craniotomy: If  stroke was caused by bleeding into brain tissue,  surgery on our brain is done  to remove the blood or fix a damaged blood vessel.

Carotid endarterectomy: Blocked carotid arteries can cause poor blood flow to your brain. If such  carotid arteries are blocked, surgery called carotid endarterectomy may be done. This surgery widens the arteries so that blood can flow  more easily.

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Article publié pour la première fois le 09/10/2011

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Intracerebral hemorrhage

 Intracerebral hemorrhage

It  is a subtype of intracranial hemorrhage (bleeding inside the skull) that occurs within the brain tissue itself. Most intracerebral hemorrhages occur in the basal ganglia, cerebral lobes, cerebellum, or pons. Intracerebral hemorrhage may also occur in other parts of the brain stem or in the midbrain

.   intra cerebral hemorrhage is  divided into..

1) intra-axial hemorrhage; that it occurs within the brain tissue rather than outside of it.there are mainly two types of intra cranial hemorrhage i.e. intra parenchymal hemorrhage and intravenous hemorrhages.

         2) extra-axial hemorrhage, such as  epidural, sub- dural and sub arachnoid hematomas which all occor within the skull but outside the brain tissue  

 

Alternative Names of hemorrhage

Intra cranial hemorrhage; Hemorrhage – intracerebral; Hypertensive hemorrhage; Hemorrhagic cerebro vascular  disease

 

causes of hemorrhage

Internal bleeding can occur in any part of the brain. Blood may build up in the brain tissues, or in the space between the brain and the membranes that cover it.The bleeding may only be in one hemisphere ( lobar intracerebral hemorrhage). Or it may occur in other brain structures, such as the thalamus, basal ganglia, pons, or cerebellum (deep  intracerebral hemorrhage)  causes are..

1) aneurysm or vascular malformation

2)  High blood pressure

3) amyloid angiopathy ( Protein deposits along blood vessels)

4) trauma to the brain

in some cases it may be due to unknown cause. Blood irritates the brain tissues, causing swelling (cerebral edema). It can collect into a mass called a hematoma. Either swelling or a hematoma will increase pressure on nearby brain tissues

Risk factors of hemorrhage

the risk of intracerebral hemorrhage include the following:

a) Blood and bleeding disorders

b) Decreased levels of blood platelets

c) disseminated intravascular coagulation

d) hypertension

e) diabeties

f) menopause

g) cigarette smoking

h)  drink alcohol

i) hemophillia

j) leukemia

k) sickle cell anemia

l) brain tumors

m) liver diseases

n) use of aspirin or anti coagulant medications.

Premature infants (born earlier than 35 weeks) will sometimes have bleeding into the fluid-filled spaces (ventricles) in the brain. This type of bleed is called intra-ventricular hemorrhage (IVH). This occurs in the first day or so of life and is usually not preventable

     

     

     

     

     

     

    Article publié pour la première fois le 04/10/2011

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