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Fig. 2 | BMC Cardiovascular Disorders

Fig. 2

From: Effects of adaptive left bundle branch–optimized cardiac resynchronization therapy: a single centre experience

Fig. 2

ECG following LOT-aCRTD in a patient with ischaemic cardiomyopathy and normal PR interval. a Baseline ECG shows LBBB with a QRS duration of 160 ms. b During unipolar LBBAP pacing, a right bundle branch block pattern with a QRS duration of 122 ms is visible. c During pacing with LOT-aCRTD, a left bundle branch block correction pattern with a QRS duration of 120 ms is visible

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