ISLAMABAD, (National Times) – In 2019, stroke was the secondTrusted Source leading cause of mortality globally, accounting for 11% of deaths.
\nThere are three main typesTrusted Source of stroke. The first and most common, accounting for 87% of cases, is an ischemic stroke. It occurs when blood flow through the artery that supplies oxygen to the brain becomes blocked.<\/p>\n
The second is a hemorrhagic stroke, caused by a rupture in an artery in the brain, which in turn damages surrounding tissues.<\/p>\n
The third type of stroke is a transient ischemic attack (TIA)Trusted Source, which is sometimes called a \u201cministroke.\u201d It happens when blood flow is temporarily blocked to the brain, usually for no more than 5 minutes.<\/p>\n
While stroke is very common, it is often misunderstood. To help us dispel myths on the topic and improve our understanding, we got in touch with Dr. Rafael Alexander Ortiz, chief of Neuro-Endovascular Surgery and Interventional Neuro-Radiology at Lenox Hill Hospital.<\/p>\n
1. Stroke is a problem of the heart<\/p>\n
Although stroke risk is linked to cardiovascular risk factorsTrusted Source, strokes happen in the brain, not the heart.<\/p>\n
\u201cSome people think that stroke is a problem of the heart,\u201d Dr. Ortiz told MNT. \u201cThat is incorrect. A stroke is a problem of the brain, caused by the blockage or rupture of arteries or veins in the brain, and not the heart.\u201d<\/p>\n
Some people confuse stroke with a heart attackTrusted Source, which is caused by a blockage in blood flow to the heart, and not the brain.<\/p>\n
2. Stroke is not preventable<\/p>\n
\u201cThe most common risk factors [for stroke] include hypertension, smoking, high cholesterol, obesity, diabetes, trauma to the head or neck, and cardiac arrhythmias,\u201d said Dr. Ortiz.<\/p>\n
Many of these risk factors can be modified by lifestyleTrusted Source. Exercising regularly and eating a healthy diet can reduce risk factors such as hypertension, high cholesterol, obesity, and diabetes.<\/p>\n
Other risk factorsTrusted Source include alcohol consumption and stress. Working to reduce or remove these lifestyle factors may also reduce a person\u2019s risk of stroke.
\nBy Tim Newman<\/p>\n
3. Stroke does not run in families<\/p>\n
Single-gene disorders such as sickle cell disease increase a person\u2019s risk for stroke.<\/p>\n
Genetic factorsTrusted Source including a higher risk for high blood pressure and other cardiovascular risk factors may also indirectly increase stroke risk.<\/p>\n
As families are likely to share environments and lifestyles, unhealthy lifestyle factors are likely to increase stroke risk among family members, especially when coupled with genetic risk factors.<\/p>\n
4. Stroke symptoms are hard to recognize<\/p>\n
The most common symptoms for stroke form the acronym \u201cF.A.S.T.Trusted Source\u201c:<\/p>\n
\u2022 F: face dropping, when one side of the face becomes numb and produces an uneven \u201csmile\u201d<\/p>\n
\u2022 A: arm weakness, when one arm becomes weak or numb and, when raised, drifts slowly downward<\/p>\n
\u2022 S: speech difficulty, or slurred speech<\/p>\n
\u2022 T: time to call 911<\/p>\n
Other symptomsTrusted Source of stroke include:<\/p>\n
\u2022 numbness or weakness in the face, arm, leg, or one side of the body<\/p>\n
\u2022 confusion and trouble speaking or understanding speech<\/p>\n
\u2022 difficulty seeing in one or both eyes<\/p>\n
\u2022 difficulty walking, including dizziness, loss of balance and coordination<\/p>\n
\u2022 severe headaches without a known cause<\/p>\n
5. Stroke cannot be treated<\/p>\n
\u201cThere is an incorrect belief that strokes are irreversible and can\u2019t be treated,\u201d explained Dr. Ortiz.<\/p>\n
\u201cEmergency treatment of a stroke with injection of a clot busting drug, minimally invasive mechanical thrombectomy for clot removal, or surgery can reverse the symptoms of a stroke in many patients, especially if they arrive to the hospital early enough for the therapy (within minutes or hours since the onset of the symptoms),\u201d he noted.<\/p>\n
\u201cThe longer the symptoms last, the lower the likelihood of a good outcome. Therefore, it is critical that at the onset of stroke symptoms \u2014 ie. trouble speaking, double vision, paralysis or numbness, etc \u2014 an ambulance should be called (911) for transport to the nearest hospital,\u201d he continued.<\/p>\n
ResearchTrusted Source also shows that those who arrive within 3 hours of first experiencing symptoms typically have less disability 3 months afterward than those who arrived later.<\/p>\n
6. Stroke occurs only in the elderly<\/p>\n
Age is a significant risk factor for stroke. Stroke risk doublesTrusted Source every 10 years after age 55. However, strokes can occur at any age.<\/p>\n
One studyTrusted Source examining healthcare data found that 34% of stroke hospitalizations in 2009 were under age 65.<\/p>\n
A reviewTrusted Source in 2013 points out that \u201capproximately 15% of all ischemic strokes occur in young adults and adolescents.\u201d<\/p>\n
The researchers noted that stroke risk factors including hypertension, diabetes, obesity, lipid disorders, and tobacco use were among the most common co-existing conditions among this age group.<\/p>\n
7. All strokes have symptoms<\/p>\n
Not all strokes have symptoms, and some research suggests that symptom-free strokes are far more common than those with symptoms.<\/p>\n
One studyTrusted Source found that out of the over 11 million strokes in 1998, 770,000 presented symptoms, whereas close to 11 million were silent.<\/p>\n
EvidenceTrusted Source of these so-called silent strokes appears on MRI scans as white spots from scarred tissue following a blockage or ruptured blood vessel.<\/p>\n
Often, silent strokes are identified when patients receive MRI scans for symptoms including headaches, cognitive issues, and dizziness.<\/p>\n
Although they occur without symptoms, they should be treated similarly to strokes with symptoms. Silent strokes put people at risk of future symptomatic strokesTrusted Source, cognitive decline, and dementia.<\/p>\n
8. A ministroke is not so risky<\/p>\n
\u201cThe term ministroke has been used incorrectly as some think that it is related to small strokes that carry low risk,\u201d said Dr. Ortiz. \u201cThat statement is incorrect, as a ministroke is a transient ischemic attack (TIA).\u201d<\/p>\n
\u201cIt is not a small stroke, but a premonition that a large stroke can occur. Any symptom of acute stroke, transient or persistent, needs emergency workup and management to prevent a devastating large stroke,\u201d he added.<\/p>\n
9. Stroke always causes paralysis<\/p>\n
Stroke is a leading cause of long-term disability, but not everyone who has a stroke will experience paralysis or weakness. ResearchTrusted Source shows that stroke leads to reduced mobility in over half of stroke survivors aged 65 and over.<\/p>\n
However, the long-term impactsTrusted Source of stroke vary on many factors, such as the amount of brain tissue affected and the area affected. Damage to the left brain, for example, will affect the right side of the body and vice versa.<\/p>\n
If the stroke occurs in the left sideTrusted Source of the brain, effects may include:<\/p>\n
\u2022 paralysis on the right side of the body<\/p>\n
\u2022 speech and language problems<\/p>\n
\u2022 slow and cautious behavior<\/p>\n
\u2022 memory loss.<\/p>\n
If it affects the right sideTrusted Source of the brain, paralysis may also occur, this time on the left side of the body. Other effects may include:<\/p>\n
\u2022 vision problems<\/p>\n
\u2022 quick and inquisitive behavior<\/p>\n
\u2022 memory loss.<\/p>\n
10. Stroke recovery happens fast<\/p>\n
Recovery from stroke can take months, if not years. However, many may not fully recover. The American Stroke AssociationTrusted Source says that among stroke survivors:<\/p>\n
\u2022 10% will make an almost complete recovery<\/p>\n
\u2022 another 10% will require care in a nursing home or another long-term facility<\/p>\n
\u2022 25% will recover with minor impairments<\/p>\n
\u2022 40% will experience moderate to severe impairments<\/p>\n
ResearchTrusted Source suggests there is a critical time window between 2\u20133 months after stroke onset, during which intensive motor rehabilitation is more likely to lead to recovery. Some may also be able to spontaneously recover during this period.<\/p>\n
Beyond this window, and beyond the 6-month mark, improvements are still possible although are likely to be significantly slower.<\/p>\n","protected":false},"excerpt":{"rendered":"
ISLAMABAD, (National Times) – In 2019, stroke was the secondTrusted Source leading cause of mortality globally, accounting for 11% of deaths. There are three main typesTrusted Source of stroke. The first and most common, accounting for 87% of cases, is an ischemic stroke. It occurs when blood flow through the artery that supplies oxygen to […]<\/p>\n","protected":false},"author":1,"featured_media":48229,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-48228","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-showbiz","entry"],"yoast_head":"\n