Midwall ejection fraction for assessing systolic performance of the hypertrophic left ventricle

• Published in: Cardiovascular ultrasound 2012-11, Vol.10 (1), p.45-45, Article 45
• Main Authors: Yoshikawa, Hisao, Suzuki, Makoto, Hashimoto, Go, Kusunose, Yukiko, Otsuka, Takenori, Nakamura, Masato, Sugi, Kaoru
• Format: Article
• Language: English
• Subjects: Aged; Aged, 80 and over; Cardiology; Echocardiography; Echocardiography, Doppler; Female; Flow velocity; Fractions; Heart; Heart attacks; Heart failure; Humans; Hypertension; Hypertrophy; Hypertrophy, Left Ventricular - diagnostic imaging; Hypertrophy, Left Ventricular - physiopathology; Left ventricular hypertrophy; Left ventricular systolic function; Male; Methods; Middle Aged; Midwall ejection fraction; Reproducibility of Results; Sensitivity and Specificity; Speckle tracking echocardiography; Stroke Volume - physiology; Studies; Systole - physiology; Ultrasound; Ventricle; Ventricular Function, Left - physiology
• ISSN: 1476-7120; 1476-7120
• DOI: 10.1186/1476-7120-10-45

In patients with left ventricular hypertrophy (LVH), LV midwall fractional shortening (FS) is used as a measure of LV systolic performance that is more physiologically appropriate than conventional FS. For evaluation of LV volume and ejection fraction (EF), 2-dimensional (2D) echocardiography is more accurate than M-mode echocardiography. The purpose of this study was to assess systolic performance by midwall EF using 2D speckle tracking echocardiography (STE). Sixty patients were enrolled in the study. Patients were divided into two groups with LVH (n = 30) and without LVH (control group, n = 30). LV systolic function was compared between the two groups and the relationships of left ventricular mass index (LVMI) with LV systolic parameters, including midwall EF, were investigated. Midwall EF in the LVH group was significantly lower than that in the control group (42.8±4.4% vs. 48.1±4.1%, p