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Assessment of vascular involvement in hypertension
Insights
Hypertension causes two types of vascular disease: small vessel disease affecting the kidney and brain, and atheroma in larger arteries. New non-invasive imaging techniques improve disease assessment.
Area of Science:
- Cardiovascular Medicine
- Nephrology
- Neurology
Background:
- Hypertension is a significant risk factor for vascular disease.
- Vascular disease in hypertension manifests in two primary forms: small vessel disease and atheroma.
- Small vessel disease directly results from hypertension, impacting organs like the kidneys and brain.
Purpose of the Study:
- To differentiate between small vessel disease and atheroma in hypertensive patients.
- To highlight clinical indicators of small vessel disease.
- To discuss advancements in assessing vascular disease, particularly atheroma.
Main Methods:
- Review of clinical evidence for small vessel disease (retinopathy, proteinuria, lacunar infarction).
- Discussion of traditional assessment methods for atheromatous disease (angiography).
- Introduction of novel non-invasive techniques like digital subtraction angiography and ultrasound imaging.
Main Results:
- Small vessel disease is a direct consequence of hypertension, affecting the kidney and brain.
- Atheroma, affecting larger arteries, involves hypertension as one of several causative factors.
- Non-invasive imaging technologies offer improved assessment capabilities for vascular disease.
Conclusions:
- Understanding the distinct types of vascular disease in hypertension is crucial for targeted management.
- Clinical signs like retinopathy and proteinuria indicate small vessel damage.
- Emerging non-invasive imaging techniques represent a significant advancement in evaluating vascular conditions associated with hypertension.
Abstract:
Vascular disease in hypertension is of two types. Disease of arterioles and small arteries affects predominantly the kidney and brain, and is due directly to the hypertension itself. Atheroma mainly affects large and medium size arteries and hypertension is only one of several factors involved in its causation. Clinical evidence of small vessel disease includes retinopathy, proteinuria and lacunar cerebral infarction. Assessment of atheromatous disease usually involves angiography. The recent development of non-invasive techniques such as digital subtraction angiography and ultrasound imaging promises to improve the assessment of vascular disease.