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Am J Physiol Heart Circ Physiol 282: H357-H362, 2002; doi:10.1152/ajpheart.00136.2001
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Vol. 282, Issue 1, H357-H362, January 2002

Alterations of systolic left ventricular twist after acute myocardial infarction

Jérôme Garot1, Olivier Pascal1, Benoît Diébold2, Geneviève Derumeaux3, Bernhard L. Gerber4, Jean-Luc Dubois-Randé1, João A. C. Lima4, and Pascal Guéret1

1 Fédération de Cardiologie, Henri Mondor University Hospital, 94010 Créteil; 2 Hôpital Européen Georges Pompidou, 75015 Paris; 3 The Charles Nicolle University Hospital, 76000 Rouen, France; and 4 The Johns Hopkins School of Medicine, Baltimore, Maryland 21205

10.1152/ajpheart.00136.2001.---We sought to characterize the alterations of left ventricular (LV) twist after acute myocardial infarction in humans and to study their relationship to usual parameters of LV function. Systolic LV twist was measured by color tissue Doppler echocardiography (TDE) in 34 patients after anterior myocardial infarction and in 20 controls. In a subset of controls and patients, the assessment of LV twist by TDE was validated against magnetic resonance (MR) tissue tagging with good agreement between the two methods. Myocardial ischemia was responsible for a decrease in LV twist in infarct patients (P < 0.01). The decrease in LV twist was correlated with the extent of the asynergic area and global LV function as assessed by LV cineangiography (P < 0.001). Thus acute myocardial ischemia is responsible for a decrease in LV twist that is related to global LV function. Color TDE is a promising technique for straightforward assessment of LV twist in humans.

echocardiography; Doppler


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