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Exercise capacity in children with hypertrophic cardiomyopathy and its relation to diastolic left ventricular
1Department of Pediatrics, Arkansas Children's Hospital, Little Rock 72202, USA. yetmananjit@exchange.uams.edu
The American Journal of Cardiology
|February 17, 2001
Insights
Left ventricular diastolic impairment is common in children with hypertrophic cardiomyopathy. This diastolic dysfunction is linked to symptoms and reduced exercise capacity in pediatric patients.
Area of Science:
- Pediatric Cardiology
- Cardiovascular Physiology
Background:
- Hypertrophic cardiomyopathy (HCM) is a primary cardiac condition affecting the heart muscle.
- Diastolic dysfunction is a recognized complication in HCM, impacting the heart's ability to relax and fill.
Purpose of the Study:
- To investigate the prevalence and implications of left ventricular diastolic impairment in pediatric patients with HCM.
- To determine the relationship between diastolic dysfunction and clinical manifestations like symptoms and exercise intolerance.
Main Methods:
- Echocardiographic assessment of left ventricular diastolic function.
- Clinical evaluation of symptoms and exercise capacity.
Main Results:
- Left ventricular diastolic impairment is frequently observed in children with HCM.
- Diastolic dysfunction occurs irrespective of left ventricular outflow tract obstruction.
- Impaired diastolic filling correlates significantly with the presence of symptoms and exercise limitations.
Conclusions:
- Left ventricular diastolic impairment is a key pathophysiological feature in pediatric HCM.
- Assessing diastolic function is crucial for understanding symptom burden and exercise capacity in these children.
Abstract:
Left ventricular diastolic impairment is often seen in children with hypertrophic cardiomyopathy regardless of left ventricular outflow tract obstruction. Such impairment in diastolic filling is related to the presence of symptoms and exercise impairment.