Treatment of Unruptured Thoracic Aortic Aneurysm: Blood Pressure Control and Cardiovascular Risk-Factor Modification
Clinical Scenario
This protocol addresses medical management of an unruptured thoracic aortic aneurysm (TAA). The focus is on sustained blood pressure reduction to defined targets and systematic modification of cardiovascular risk factors to lower the risk of serious aortic events.
Treatment Goals
The primary target is a systolic blood pressure of ≤130 mm Hg and a diastolic blood pressure of ≤80 mm Hg. Uncontrolled hypertension is a recognised contributor to aortic dissection risk, making consistent blood pressure management a central clinical priority.
Approach Overview
Management centres on antihypertensive medical therapy and broad cardiovascular risk-factor modification. Specific classes of antihypertensive agents are used to reach the blood pressure targets above, and — where atherosclerosis is present — additional targeted interventions may be warranted. The complete regimen, including agent selection, sequencing, and further clinical considerations, is available in the full protocol.
References
DOI: 10.1161/CIR.0000000000001106
- In patients with TAA and an average systolic BP (SBP) of ≥130 mm Hg or an average diastolic BP (DBP) of ≥80 mm Hg, the use of antihypertensive medications is recommended to reduce risk of cardiovascular events.
- In patients with TAA, regardless of cause and in the absence of contraindications, use of beta blockers to achieve target BP goals is reasonable.
- In patients with TAA, regardless of etiology and in the absence of contraindications, ARB therapy is a reasonable adjunct to beta-blocker therapy to achieve target BP goals.
- In patients with TAA and imaging or clinical evidence of atherosclerosis, statin therapy at moderate or high intensity is reasonable.
- In patients with TAA who smoke cigarettes, smoking cessation efforts are recommended.
- In patients with atherosclerotic TAA and concomitant aortic atheroma or PAU, the use of low-dose aspirin is reasonable, unless contraindicated.
- Uncontrolled hypertension increases the risk for aortic dissection, so achieving a SBP goal of ≤130 mm Hg and a DBP goal of ≤80 mm Hg, with the use of antihypertensive therapy in those with hypertension and TAA, is advised.
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