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Diagnosis and therapeutic aspects of stroke
K R Lees1, A G Dyker, A G Dykes
1University Department of Medicine and Therapeutics, Gardiner Institute Western Infirmary, Glasgow, UK.
Insights
Accurate stroke assessment is crucial for effective treatment. Early hypertension management is not recommended after ischemic stroke, but research is ongoing for optimal blood pressure control and neuroprotection.
Area of Science:
- Neurology
- Cardiology
- Radiology
Background:
- Stroke assessment requires differentiating between hemorrhagic and ischemic types to guide treatment.
- Identifying vascular territories and underlying causes like carotid stenosis or cardio-embolic disease is critical.
Purpose of the Study:
- To outline essential diagnostic and management strategies for acute stroke.
- To highlight areas requiring further research in stroke treatment and prevention.
Main Methods:
- Routine computed tomography (CT) scanning for initial assessment.
- Selective use of Duplex Doppler sonography and echocardiography.
- Review of current and emerging treatment modalities including thrombolysis and neuroprotection.
Main Results:
- Early hypertension treatment is contraindicated in ischemic stroke.
- Anticoagulation is recommended for stroke prevention in atrial fibrillation patients.
- Thrombolysis for acute ischemic stroke shows potential but requires further randomized clinical trial data.
Conclusions:
- Comprehensive stroke evaluation is vital for appropriate patient management.
- Further research is needed on optimal blood pressure management, neuroprotective agents, and the timing of interventions.
- Physicians should lead research in stroke management and prevention, including anticoagulation strategies.
Abstract:
Detailed assessment of stroke is essential to distinguish haemorrhage from infarction, to establish the vascular territory affected and to identify patients with carotid stenosis or cardio-embolic disease. Computed tomography scanning should be routinely undertaken. Duplex Doppler sonography and echocardiography should be readily available but used selectively. Hypertension should not be treated early after ischaemic stroke. Issues requiring research include the optimal time to institute treatment, the degree to which blood pressure should be lowered in the presence of carotid stenosis and the value of antihypertensive treatment in normotensive survivors of stroke. Anticoagulation should be more widely applied in the prevention of stroke in patients with atrial fibrillation. Thrombolysis for acute ischaemic stroke has potential benefits and risks. It should be used only within randomised clinical trials, some of which may soon report. Endogenous glutamate causes excitotoxic damage after cerebral ischaemia. Many pharmacological approaches to restrict neuronal loss within the ischaemic penumbra are now in clinical trials. Physicians managing hypertension should take a lead in researching blood pressure management and neuroprotective strategies after acute stroke, and in directing other preventive measures such as anticoagulation for atrial fibrillation.