Hypertension in Patients with Severe Aortic Stenosis: Emphasis on Antihypertensive Treatment and the Risk of Syncope

Author(s): Sachin P. Shah, Amit Kumar, Timothy S. Draper, William H. Gaasch

Journal Name: Current Hypertension Reviews

Volume 10 , Issue 3 , 2014

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Published guidelines for the management of hypertension (HTN) do not discuss HTN in patients with aortic stenosis (AS). Some clinicians have considered severe AS to be a relative contraindication to the use of antihypertensive agents. We sought to determine the incidence of syncope in AS patients who were treated with antihypertensive agents. We identified 89 patients with asymptomatic severe AS and normal ejection fraction. The prevalence of HTN, its treatment, and the occurrence of syncope was abstracted from medical records. HTN was documented in 63 of the 89 patients with severe AS; 62 were being treated (mean 2.2 drugs). The incidence of syncope (mean follow-up: 44 months) was similar in patients with treated HTN compared to those without HTN (8 vs 11%, p=NS). Of the 62 with treated HTN, those with syncope were older than those without syncope (88+/- 6 vs 78 +/- 9 years, p=0.02). When those with treated HTN and syncope were compared to an age and sex matched cohort without syncope there were no significant differences in severity of AS, ejection fraction, or arterial pressure. Patients with treated HTN and syncope had a lower stroke volume index than those without syncope (32 +/- 4 vs 40 +/- 6 mL/m2, p=0.01). In conclusion, the risk of syncope in patients with severe AS and treated HTN is low and similar to that seen in AS patients without HTN. Syncope is related to age, female sex, and a low stroke volume index.

Keywords: Hypertension, Aortic Stenosis, Syncope.

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Article Details

Year: 2014
Published on: 27 January, 2015
Page: [149 - 154]
Pages: 6
DOI: 10.2174/1573402111666150108101438
Price: $65

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