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Frequency of systemic hypertension in various cardiovascular diseases
1Pathology Branch, National Heart, Lung, and Blood Institute, Bethesda, Maryland 20892.
Insights
Systemic hypertension is a frequent factor in cardiovascular events like coronary and cerebrovascular issues, and aortic dissection. It significantly contributes to arterial rupture and accelerates atherosclerosis when combined with high cholesterol.
Area of Science:
- Cardiovascular Medicine
- Hypertension Research
- Pathology
Background:
- Systemic hypertension is a prevalent condition with significant clinical implications.
- Cardiomegaly is a common finding in various cardiovascular diseases.
- Understanding the frequency of hypertension in different cardiovascular conditions is crucial for risk assessment.
Purpose of the Study:
- To summarize the clinical frequencies of systemic hypertension and necropsy evidence of cardiomegaly.
- To highlight the role of hypertension as an underlying factor in specific cardiovascular events.
- To examine the synergistic effect of hypertension and hypercholesterolemia on atherosclerosis.
Main Methods:
- Review and summarization of clinical data on systemic hypertension.
- Analysis of necropsy findings for evidence of cardiomegaly.
- Correlation of hypertension prevalence with specific cardiovascular conditions.
Main Results:
- Systemic hypertension is observed in over 50% of coronary events, 75% of cerebrovascular events, and 90% of aortic dissections.
- Hypertension is the primary cause of most nontraumatic cerebral arterial or aortic ruptures.
- Hypertension, especially with hypercholesterolemia, accelerates atherosclerosis.
Conclusions:
- Systemic hypertension is a critical and frequent comorbidity in major cardiovascular diseases.
- Hypertension is a key etiological factor in arterial rupture and atherosclerosis progression.
- Managing hypertension is essential for preventing severe cardiovascular outcomes.
Abstract:
The clinical frequencies of systemic hypertension and necropsy evidence of cardiomegaly in various cardiovascular conditions are summarized. Systemic hypertension is present in greater than 50% of patients with various coronary events, in greater than 75% of patients with various cerebrovascular events and in greater than 90% of patients with aortic dissection. Hypertension is the sole underlying factor in most patients with nontraumatic cerebral arterial or aortic (dissection = partial rupture) rupture. In association with hypercholesterolemia (serum total cholesterol levels greater than 150 mg/dl), hypertension clearly accelerates atherosclerosis and its devastating consequences.