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Figure 3 Change of left ventricular ejection fraction, left ventricular end-diastolic diameter, and oxygen consumption at peak exercise from baseline to one-year follow-up (FU) in responders (dotted lines) and non-responders (continuous lines) to cardiac resynchronization therapy (CRT), according to changes of standard deviation of the averages of intrinsic intervals in the 288 five-minute segments of a day (SDANN) four weeks after CRT implantation. The vertical bars represent the standard error. The p values refer to comparison between baseline and follow-up among each group. (Bottom right) distribution of locations of the left ventricular lead tip in a left anterior oblique (LAO) 40° view among responders and non-responders. The p value refers to comparison between responders and non-responders.
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