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STROKES
A stroke, often referred to as an attack on the brain, occurs when the blood supply to the brain is cut off or a blood vessel in the brain ruptures suddenly. In the event of a stroke, the patient runs the risk of brain damage, disability or death.
SYMPTOMS
- Numbness in the face, arm and leg
- Difficulty comprehending what other people are saying and trouble speaking
- Incoherent speech
- Unresponsive behaviour
- Change in behaviour
- Fatigue
- Vomiting
- Seizures
TREATMENT
Treatment depends on the different causes of strokes. For example, a blood clot that prevents continuous blood flow to the brain, also known as ischemic stroke, can be treated through clot-dissolving medications (thrombolytic medications) to dissolve clots in the arteries of the brain.
Other forms of treatment include:
- A thrombectomy involves the insertion of a catheter into a blood vessel in the brain. Afterwards, the clot is pulled from the artery using an external device.
- The surgical insertion of a stent expands the walls of the artery, dilating the narrowed part of the blood vessel.
- Surgical coiling is used to treat a haemorrhage stroke. As a result, a coil-like instrument is placed in the weakened area of the arterial wall. The coil obstructs blood flow and reduces the amount of bleeding in the area.
- Surgical clamping involves the placement of a tiny clamp at the stem of the aneurysm. As a result, the clamp limits blood flow and prevents the blood vessel from breaking or bleeding.
- Surgery for Ischaemic strokes involves carotid endarterectomy where a small incision is made in the neck and the blood vessel opened and cleaned up before closure.
- Oral anticoagulants minimise the risk of the formation of a blood clot by thinning the blood. Dr Manyangadze will prescribe anticoagulants to prevent the blood clot from increasing in size or as soon as an ischemic stroke has occurred.
FAQ
1What are the main causes of a stroke?
Hypertension, smoking, cardiovascular disease and diabetes can increase your risk of stroke.
- ankle/brachial index (ABI) – to measure blood pressure in your legs and arms
- pulse volume recording - to measure blood volume in your legs.
- Vascular ultrasound – to monitor blood circulation
2How does a stroke happen?
A stroke is considered a sudden attack on the brain due to a blocked or burst artery.
3What is a silent stroke?
A silent stroke happens so suddenly that you may not even realise you are having a stroke. However, a silent stroke can still result in brain damage.
