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Hypertension in aortic valve disease and its response to valve replacement
A Zezulka1, J Mackinnon, D G Beevers
1University Department of Medicine, Dudley Road Hospital, Birmingham, UK.
Insights
Hypertension is common in patients with aortic valve disease, affecting systolic pressure in aortic stenosis and diastolic pressure in aortic regurgitation. Blood pressure monitoring is crucial after aortic valve replacement surgery.
Area of Science:
- Cardiology
- Cardiovascular Surgery
Background:
- Aortic valve disease, including stenosis and regurgitation, significantly impacts cardiovascular health.
- Hypertension is a common comorbidity in patients with valvular heart disease.
Purpose of the Study:
- To investigate the prevalence of hypertension in patients with isolated aortic valve disease before and after aortic valve replacement.
- To analyze the blood pressure response to aortic valve replacement in different types of aortic valve disease.
Main Methods:
- Retrospective analysis of 87 patients undergoing aortic valve replacement for lone aortic valve disease.
- Pre-operative and post-operative blood pressure measurements were assessed using age and sex-adjusted criteria.
Main Results:
- Prevalence of hypertension was 26% (pre-op) and 24% (post-op) in aortic stenosis, and 65% (pre-op) and 57% (post-op) in aortic regurgitation.
- Post-operative systolic hypertension increased in aortic stenosis patients with prior left ventricular failure.
- Diastolic hypertension rose post-operatively in aortic regurgitation (44%) and combined disease (35%).
Conclusions:
- Systolic hypertension is prevalent in aortic stenosis, while diastolic hypertension is common in aortic regurgitation, even after valve replacement.
- Blood pressure changes post-aortic valve replacement are not influenced by the type or size of the inserted valve.
- Continuous blood pressure monitoring is essential for patients following aortic valve replacement due to persistent hypertension risks.
Abstract:
We have investigated the prevalence of hypertension and the response of blood pressure to operation in 87 patients with lone aortic valve disease who underwent aortic valve replacement. In patients with aortic stenosis alone 26% were hypertensive pre-operatively (age and sex adjusted blood pressure greater than 160 systolic and or greater than 95 mmHg diastolic) and 24% were hypertensive post-operatively. In those with aortic regurgitation alone, hypertension was present in 65% before and 57% after valve replacement using the same criterion. For combined stenosis and regurgitation, the prevalence was 54% and 62%, respectively. The post-operative increase in systolic pressure in patients with aortic stenosis occurred mainly in those with a history of left ventricular failure. In those with aortic regurgitation or combined stenosis with regurgitation, diastolic pressure rose after valve replacement resulting in a prevalence of diastolic hypertension of 44% and 35%, respectively. Blood pressure changes were not predicted by the type of valve inserted nor its size. Our data show that despite severe symptomatic aortic valve disease, systolic hypertension was common in aortic stenosis and diastolic hypertension was found in aortic regurgitation. This underlines the importance of blood pressure monitoring in patients following aortic valve replacement.