Fig. 3From: The left atrial substrate plays a significant role in the development of complex atrial tachycardia in patients with precapillary pulmonary hypertensionAn example of RA and LA arrhythmogenic substrate. Example of 3D electro-anatomical bipolar voltage maps of both right and left atrium (see Table 4 for more individual details). Red colour represents areas with reduced bipolar voltage (< 0.1 mV). LA – left atrium; RA – right atriumBack to article page