Hemianopia: Loss of vision to one part of the visual field. This can lead to trouble seeing on one side of the body.
Hemiparesis: Weakness on one side of the body due to a stroke. The degree of weakness can vary from mild, moderate to severe. This may also be associated with changes in feeling, numbness or tingling.
Hemiplegia: Complete loss of movement on one side of body due to a stroke. Sometimes referred to as a complete paralysis.
Hemorrhagic stroke: A stroke caused by the rupture of an artery within the brain.
· Intracerebral hemorrhage occurs when a diseased blood vessel within the brain bursts, allowing blood to leak inside the brain. The name means within the cerebrum or brain.
· Subarachnoid hemorrhage occurs when a blood vessel ruptures and blood fills the subarachnoid space surrounding the brain (the space between the thin tissues that the surround the brain). Symptoms may include a sudden, intense headache, neck pain, and nausea or vomiting.
Holter monitor: A portable device worn around the neck and shoulders that records the electrical activity of the heart. A holter monitor is similar to an electrocardiogram but allows the information to be recorded over longer periods of time (24-48 hours) either in hospital or at home
Hyperacute period: Time frame between initial onset of stroke symptoms and contact with paramedics and emergency departments.
Hyperlipidemia: Also known as high cholesterol. A condition where there is high levels of lipids (or fats) in the blood. It can be due to family history and/or the types of food a person eats.
Hypertension: Also known as high blood pressure. Blood pressure is high when it is 140 ⁄ 90 or above on repeated readings. High blood pressure is the number one risk factor for stroke.