Ischemic Stroke:
Ischemic
stroke occurs when there is a blockage or obstruction within an artery that
supplies blood to the brain. This blockage can be caused by a blood clot that
forms within the blood vessels of the brain (thrombotic stroke) or by a clot
that travels from another part of the body and gets lodged in a brain artery
(embolic stroke). The blockage prevents blood flow to a specific area of the
brain, leading to a lack of oxygen and nutrients in that region. Ischemic
stroke is often associated with risk factors such as high blood pressure
(hypertension), heart disease, diabetes, smoking, and other conditions that
contribute to the formation of blood clots.
Hemorrhagic
Stroke:
Hemorrhagic
stroke occurs when a blood vessel in the brain ruptures, causing bleeding into
the surrounding brain tissue. This bleeding can result from various factors,
including long-standing high blood pressure (hypertensive hemorrhage), the
rupture of an aneurysm (a weak or bulging area in a blood vessel wall), or the
rupture of an arteriovenous malformation (AVM), which is a tangle of abnormal
blood vessels. The bleeding puts pressure on the brain and damages the surrounding
tissue, leading to the stroke's effects. Chronic high blood pressure is a
significant risk factor for hemorrhagic stroke, and the presence of aneurysms
or AVMs can also increase the risk, although they are less common overall.
Transient
Ischemic Attack (TIA):
A transient
ischemic attack, or TIA, is a temporary disruption of blood flow to the brain.
It is often referred to as a "mini-stroke" because it shares
similarities with ischemic stroke but has a crucial distinction: the blockage
is transient, and the blood flow is restored relatively quickly. TIAs typically
last for a few minutes to a few hours, and the symptoms completely resolve
within 24 hours. While the symptoms may be temporary, TIAs are considered
warning signs of a potential future stroke. They indicate an increased risk for
a more severe and lasting ischemic stroke. The risk factors for TIA are the
same as those for ischemic stroke since both conditions arise from similar
underlying causes.
If you are
seeking expert care for a brain stroke in Delhi, look no further than Dr.
Mukesh Kumar, a renowned and highly skilled neurologist. With an exceptional
reputation in the field, Dr. Kumar is recognized as one of the best neurologists in Delhi. His expertise and extensive
experience in diagnosing and treating brain stroke make him a trusted choice
for patients in need of specialized care.
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