Community screening for left ventricular hypertrophy in patients with hypertension using hand-held echocardiography - 24/08/11
, Gavin Galasko, MRCP a, b, Michael Hickman, MRCP a, b, Paramjit Jeetley, MRCP a, b, Avijit Lahiri, MB,BS, MSc, MRCP, FACC, FESC a, bAbstract |
Left ventricular (LV) hypertrophy (LVH) confers increased cardiovascular risk on patients with hypertension. Echocardiography using new hand-held devices might allow community-based cost-effective screening for LVH in a targeted hypertensive population. Thus, the aim of this study was to test the validity of hand-held ultrasound devices to screen for LVH in the community. Accordingly, 189 patients with hypertension attending a community-based heart failure screening program underwent echocardiography by both hand-held and standard devices by an experienced echocardiographer. LVH was defined as LV mass index ≥134 g.m−2 for men and ≥110 g.m−2 for women using the Devereux-modified American Society of Echocardiography cube equation. No significant differences were noted between the 2 devices in the measurement of LV wall thickness or LV mass index. Agreement for estimation of LVH between the 2 devices was 86% (κ = 0.63). The sensitivity, specificity, and positive and negative predictive values of the hand-held device for predicting LVH were 72%, 91%, 73%, and 90%, respectively. Thus, hand-held echocardiography devices accurately assessed LVH and may be used for community-based screening for LVH in targeted patients with hypertension.
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| Supported in part by a grant from the Cardiac Research Fund. |
Vol 17 - N° 1
P. 56-61 - janvier 2004 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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