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  Indian J Med Microbiol
 

Figure 2: Left atrial strain curve. Left panel: a case in sinus rhythm at the time of echocardiographic exam, right panel: a case with atrial fibrillation at the time of echocardiographic exam. The reservoir function of the left atrium is assessed with the first peak positive strain (peak atrial longitudinal strain) and the contractile function by the second peak positive strain (peak atrial contraction strain). Peak atrial contraction strain is not observed in case s with atrial fibrillation because of loss of atrial contraction

Figure 2: Left atrial strain curve. Left panel: a case in sinus rhythm at the time of echocardiographic exam, right panel: a case with atrial fibrillation at the time of echocardiographic exam. The reservoir function of the left atrium is assessed with the  first peak positive strain (peak atrial longitudinal strain) and the contractile function by the second peak positive strain (peak atrial contraction strain). Peak atrial contraction strain is not observed in case s with atrial fibrillation because of loss of atrial contraction