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[Severe aortic stenosis without left-ventricular hypertrophy: associated variables and prognosis following aortic
Insights
Most patients with severe aortic stenosis have left ventricular hypertrophy (LVH). Absence of LVH was linked to younger age and higher cardiac index, with similar outcomes after aortic valve replacement.
Area of Science:
- Cardiology
- Echocardiography
- Cardiac Surgery
Background:
- Severe aortic stenosis is a significant valvular heart disease.
- Left ventricular hypertrophy (LVH) is common in severe aortic stenosis.
- The clinical implications of absent LVH in this population are not well understood.
Purpose of the Study:
- To determine the prevalence and predictors of absent LVH in severe aortic stenosis.
- To evaluate the course and outcomes following aortic valve replacement (AVR) in patients with and without LVH.
- To assess ventricular adaptation post-AVR based on LVH status.
Main Methods:
- Retrospective analysis of patients with severe aortic stenosis undergoing AVR.
- Echocardiographic assessment for LVH using mass criteria.
- Comparison of clinical characteristics, procedural outcomes, and mortality between groups.
Main Results:
- Only 10% of patients lacked LVH, while 90% exhibited LVH.
- Absence of LVH was associated with younger age, lower body surface area, and higher cardiac index.
- Adequate ventricular adaptation post-AVR was more frequent in patients with LVH.
- Six-month mortality was not significantly different between groups (7.6% with LVH vs. 12.5% without LVH, p=0.10).
Conclusions:
- Left ventricular hypertrophy is highly prevalent in severe aortic stenosis.
- Specific demographic and hemodynamic factors predict the absence of LVH.
- Outcomes and ventricular adaptation after AVR appear comparable between patients with and without LVH, despite differing adaptation patterns.
Abstract:
The purpose of the present study in patients with severe aortic stenosis was to assess prevalence, predictors and course after aortic valve replacement in patients without left ventricular hypertrophy according to echocardiographic mass criteria (LVH). 90% had LVH compared with 10% without. The following variables were associated with absence of LVH: younger age, low body surface area, and increased cardiac index. In patients with LVH, ventricular adaptation following aortic valve replacement was adequate more often than in those without. Six-month mortality following aortic valve replacement was insignificantly lower in patients with LVH (7.6%) than in those without it (12.5%, p = 0.10).