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Published on: April 8, 2013
Quantitative left ventricular contractility analysis under stress: a new practical approach in follow-up of
F Yalçin1, H Yalçin, N Küçükler
1Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Cardiovascular Imaging Center, Baltimore, MD 21205, USA. fyalcin1@jhmi.edu
Insights
Hypertensive left ventricular hypertrophy (LVH) can initially preserve function, but uncontrolled hypertension impairs it. Stress testing helps distinguish LVH from heart failure with preserved ejection fraction (HFPEF).
Area of Science:
- Cardiology
- Hypertension Research
- Cardiac Physiology
Background:
- Hypertensive left ventricular hypertrophy (LVH) is often characterized by preserved global LV function at rest.
- Uncontrolled hypertension can lead to detrimental effects on ejection fraction (EF) and LV contractile response to stress.
- Differentiating hypertensive LVH from heart failure with preserved EF (HFPEF) is challenging due to shared characteristics like preserved systolic function.
Purpose of the Study:
- To evaluate the utility of quantitative LV contractility assessment under stress.
- To differentiate between hypertensive LVH and HFPEF.
- To inform medical management strategies for hypertensive heart disease.
Main Methods:
- Quantitative assessment of left ventricular (LV) contractility under stress.
- Analysis of LV function and response to stress in patients with hypertensive LVH and HFPEF.
Main Results:
- Hypertensive LVH may show preserved global LV function at rest, complicating diagnosis.
- Stress-induced contractility evaluation can aid in distinguishing hypertensive LVH from HFPEF.
- Antihypertensive therapy may improve LV contractile capability in long-standing hypertension.
Conclusions:
- Quantitative LV contractility assessment during stress is valuable for differentiating hypertensive LVH from HFPEF.
- This evaluation can guide more effective medical management of hypertensive heart disease.
- Understanding stress-induced contractility is key in managing hypertensive cardiac remodeling.
Abstract:
Excessive sympathetic activity and stress-induced left ventricular (LV) hypercontractility have been described in hypertensive LV hypertrophy. Recent quantitative data have shown that hypertensive LV hypertrophy is associated with preserved global LV function. However, progression of uncontrolled hypertension have detrimental effects on both the ejection fraction (EF) and LV contractile response to stress. Hypertensive LV hypertrophy has some common characteristics, including preserved global LV systolic function and LV volume with heart failure with preserved EF (HFPEF), which makes it difficult to differentiate between the two conditions at rest. Studies suggest that adopting an efficient antihypertensive therapy regimen may positively effect on the LV contractile capability in patients with long-standing hypertension. Evaluation of quantitative LV contractility under stress may be beneficial to differentiate between the hypertensive LV hypertrophy and HFPEF. It may also assist in developing a more effective modality in medical management of patients with hypertensive heart disease.
