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The relationship between left ventricular geometric remodeling and cardiac function in essential hypertension
Shigeya Oda1, Minoru Yoshiyama, Naoya Ichiba
1Asakayama General Hospital, Japan.
Osaka City Medical Journal
|April 12, 2005
Summary
Diastolic dysfunction is common in hypertensive heart disease, regardless of left ventricular (LV) geometry. However, the severity of diastolic impairment varies across different LV geometric patterns in these patients.
Area of Science:
- Cardiology
- Hypertension Research
- Echocardiography
Background:
- Abnormal left ventricular (LV) diastolic relaxation is an early indicator of hypertensive heart disease.
- The relationship between diastolic dysfunction and LV geometric patterns in hypertension is not fully understood.
Purpose of the Study:
- To investigate the association between left ventricular (LV) diastolic function and various LV geometric patterns in hypertensive patients.
- To determine if diastolic dysfunction severity differs based on LV geometry.
Main Methods:
- Echocardiography was used to evaluate 220 hypertensive patients.
- Four LV geometric patterns were identified: normal geometry, concentric remodeling, concentric hypertrophy, and eccentric hypertrophy.
- Diastolic function was assessed using E/A ratio, E wave deceleration time (Dct), and isovolumic relaxation time (IRT).
Main Results:
- All patient groups exhibited prolonged E/A ratio and Dct, indicating diastolic dysfunction.
- Isovolumic relaxation time (IRT) was significantly longer in patients with concentric and eccentric hypertrophy compared to normal geometry and concentric remodeling groups (p < 0.05).
Conclusions:
- Diastolic dysfunction can occur in hypertensive patients irrespective of their left ventricular (LV) geometric pattern.
- The degree of diastolic function impairment is influenced by the specific LV geometric pattern present in hypertensive individuals.