What is stroke hemorrhagic transformation?
Hemorrhagic transformation (HT) is a common complication in patients with acute ischemic stroke. It occurs when peripheral blood extravasates across a disrupted blood brain barrier (BBB) into the brain following ischemic stroke. Preventing HT is important as it worsens stroke outcome and increases mortality.
Why is embolic stroke hemorrhagic?
Hemorrhagic strokes occur when a blood vessel that supplies the brain ruptures and bleeds. When an artery bleeds into the brain, brain cells and tissues do not get oxygen and nutrients. In addition, pressure builds up in surrounding tissues and irritation and swelling occur, which can lead to further brain damage.
What is symptomatic hemorrhagic transformation?
Symptomatic HTr was defined as cerebral hemorrhage temporally related to neurological deterioration. Results: Of the 389 included patients (mean age 71 years), 260 (67%) were treated with anticoagulation within 1 week from the onset. Symptomatic HTr occurred in 4.6%.
What factors are related to hemorrhagic transformation after ischemic stroke?
Factors associated with hemorrhagic transformation in ischemic stroke patients
| Factor | Reference |
|---|---|
| Systolic blood pressure | 144, 146, 152, 153 |
| Hypertension history | 144, 145 |
| Glucose | 50, 143, 144, 146, 148, 170 |
| Diabetes | 170 |
What is the difference between embolism and stroke?
Thrombotic strokes are caused by a blood clot (thrombus) in an artery going to the brain. Embolic strokes occur when a clot that’s formed elsewhere (usually in the heart or neck arteries) travels in the blood stream and clogs a blood vessel in or leading to the brain.
What is the difference between a hemorrhagic stroke and a thromboembolic stroke?
According to the National Stroke Association , almost 90 percent of all strokes are ischemic. About 10 percent are due to bleeding in your brain from a torn or ruptured blood vessel. This is called a hemorrhagic stroke. In a thrombotic stroke, the artery is blocked by a thrombus (blood clot) that forms there.
What are the two types of hemorrhagic stroke?
There are two types of hemorrhagic strokes:
- Intracerebral hemorrhage is the most common type of hemorrhagic stroke. It occurs when an artery in the brain bursts, flooding the surrounding tissue with blood.
- Subarachnoid hemorrhage is a less common type of hemorrhagic stroke.
