Jumat, 01 Februari 2013

Factors Can Cause Stroke

Factors can cause stroke

An ischemic stroke is caused by blockage of blood flow to the brain by a blood clot. The accumulation of plaque on the artery walls (the atherosclerosis or "hardening of the arteries" in common parlance) is an underlying cause of many ischemic strokes.

Atherosclerosis is a process in which fatty deposits (atherosclerotic plaque) invade the inside of blood vessels, particularly the carotid arteries on each side of the neck arteries supplying the heart and legs. Atheromatous plaque can cause a stroke or blocking blood flow, either by detaching (and constitute embolus ) and migrating in the blood, sometimes to the brain.

A hemorrhagic stroke is caused by bleeding in the brain (an intracerebral hemorrhage ) or bleeding around the brain (a subarachnoid hemorrhage ) due to the rupture of a blood vessel. Sometimes cerebral hemorrhages are caused by high blood pressure uncontrolled and, in some cases, to anomalies within the structure of blood vessels (eg. Aneurysms or vascular malformations).

Many risk factors can lead to a stroke.

Among them, there are factors you can not change include:

  • Age: The risk of stroke increases with age;
  • ethnicity: a greater percentage of First Nations people of African descent, Hispanic and South Asian high blood pressure and diabetes. These disorders increase the risk of stroke;
  • Family history: The risk of stroke is increased if sometimes a parent, brother or sister had a stroke before age 65;
  • gender: men are at greater risk of stroke than women who are not yet menopausal;
  • history of stroke or transient ischemic attack (TIA): it is estimated that up to 30% of persons who have suffered a stroke or TIA will be another stroke five years later.
Among the factors that you can take care of are:

  • high blood pressure;
  • heart disease or atrial fibrillation (irregular heart beat);
  • smoking (cigarettes);
  • diabetes;
  • one high cholesterol;
  • physical inactivity;
  • high alcohol consumption (for women, more than 10 drinks per week for men or more than 15 drinks per week);
  • le stress.
Other factors can cause a stroke, including:

  • other medical conditions such as amyloid angiopathy and antiphospholipid syndrome ;
  • the use of illicit drugs such as cocaine or LSD;
  • medication such as tamoxifen *, phenylpropanolamine, and thrombolytics.
Other factors such as the use of oral contraceptives, hormone replacement therapy or pregnancy and childbirth for women affected by pre-existing medical conditions may increase the risk of stroke in certain cases. Talk with your doctor about risk factors that are relevant to you and may affect your risk of stroke.

1 komentar:

  1. women are taking drugs to prevent hypertension which is believed to be bad now a days,study that Hypertension drugs may cause breast cancer.