BACKGROUND: The aim of this study was to assess the most relevant echocardiographic parameter for the clinical diagnosis of acute dyspnea due to left-heart dysfunction. METHODS: Transthoracic echocardiography was performed in 88 patients in sinus rhythm admitted for respiratory distress. Two experts determined the cause of dyspnea as cardiogenic (26 patients) or noncardiogenic (62 patients). RESULTS: The feasibility was 100% for the E/A ratio and the E/E deceleration time (EDT) ratio but 97%, 89%, and 85% for the E/Ea ratio, left ventricular ejection fraction (LVEF), and the E/propagation velocity (Vp) ratio, respectively. The area under the receiver operating characteristic curve for E/EDT (0.947 +/- 0.035) was statistically significantly greater than that for E/A (0.753 +/- 0.068) (P = .004). The areas under the curves for all other parameters were not statistically significantly different. In the subpopulation of patients with LVEFs > 45%, the area under the curve for LVEF was significantly smaller than those for E/Ea, E/EDT, and E/Vp. CONCLUSION: E/EDT, E/Ea, and E/Vp appear equally useful to distinguish acute dyspnea due to left-heart dysfunction from that of pulmonary origin. However, E/EDT and E/Ea can be considered the best indices with regard to feasibility.
BACKGROUND: The aim of this study was to assess the most relevant echocardiographic parameter for the clinical diagnosis of acute dyspnea due to left-heart dysfunction. METHODS: Transthoracic echocardiography was performed in 88 patients in sinus rhythm admitted for respiratory distress. Two experts determined the cause of dyspnea as cardiogenic (26 patients) or noncardiogenic (62 patients). RESULTS: The feasibility was 100% for the E/A ratio and the E/E deceleration time (EDT) ratio but 97%, 89%, and 85% for the E/Ea ratio, left ventricular ejection fraction (LVEF), and the E/propagation velocity (Vp) ratio, respectively. The area under the receiver operating characteristic curve for E/EDT (0.947 +/- 0.035) was statistically significantly greater than that for E/A (0.753 +/- 0.068) (P = .004). The areas under the curves for all other parameters were not statistically significantly different. In the subpopulation of patients with LVEFs > 45%, the area under the curve for LVEF was significantly smaller than those for E/Ea, E/EDT, and E/Vp. CONCLUSION: E/EDT, E/Ea, and E/Vp appear equally useful to distinguish acute dyspnea due to left-heart dysfunction from that of pulmonary origin. However, E/EDT and E/Ea can be considered the best indices with regard to feasibility.
Authors: Daisuke Kamimura; Takeki Suzuki; Wanmei Wang; Matthew deShazo; John E Hall; Michael D Winniford; Iftikhar J Kullo; Thomas H Mosley; Kenneth R Butler; Michael E Hall Journal: Hypertens Res Date: 2018-06-15 Impact factor: 3.872
Authors: Marc Feissel; Ludwig Serge Aho; Stefan Georgiev; Romain Tapponnier; Julio Badie; Rémi Bruyère; Jean-Pierre Quenot Journal: PLoS One Date: 2015-06-30 Impact factor: 3.240
Authors: Julien Maizel; Ahmed Salhi; Christophe Tribouilloy; Ziad A Massy; Gabriel Choukroun; Michel Slama Journal: Crit Care Date: 2013-09-03 Impact factor: 9.097