caa a22 4500 606220542 CHVBK 20210128101124.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s00380-013-0439-6 doi (NATIONALLICENCE)springer-10.1007/s00380-013-0439-6 Electrocardiographic J waves are associated with right ventricular morphology and function: evaluation by cardiac magnetic resonance imaging [Elektronische Daten] [Takahiro Takeuchi, Takeshi Tomita, Kouji Yoshie, Hirohumi Hioki, Yasutaka Oguchi, Takashi Miura, Souichirou Ebisawa, Hirohiko Motoki, Ayako Okada, Kazunori Aizawa, Atsushi Izawa, Yusuke Miyashita, Jun Koyama, Uichi Ikeda] We assessed the relationship between J waves and the ventricular morphology and function using cardiac magnetic resonance imaging (MRI). The 12-lead electrocardiograms (ECGs) of 105 consecutive patients who underwent cardiac MRI were reviewed, and those with signs of arrhythmogenic right ventricular cardiomyopathy, complete left bundle branch block, complete right bundle branch block, or chronic atrial fibrillation, where the J wave is difficult to distinguish, were excluded. The ECGs of the remaining 68 patients were analyzed for the presence of J waves. Ventricular morphologic abnormalities were identified on MRI, based on the largest short-axis diameter in the right and left ventricles (d-RVmax/d-LVmax), the area (a-RVmax/a-LVmax), and the ratio RV/LVmax. The percentage contraction of the RV (PC-RV) was used as a measure of ventricular function. Thirty-two patients (47.0 %) had J waves defined as QRS-ST junction elevation >0.1 mV from baseline in the inferior/lateral leads (J group; 56 ± 15 years; 19 males). Thirty-six patients (53.0 %) did not present J waves (NJ group; 58 ± 15 years; 27 males). The d-RVmax and a-RVmax in the J group were larger than those in the NJ group (41 ± 5.2 vs 36 ± 6.6 mm, P = 0.002 and 14 ± 2.9 vs 12 ± 3.4 cm2, P = 0.022, respectively). The RV/LVmax ratio in the J group was larger than that in the NJ group (0.83 ± 0.15 vs 0.68 ± 0.15, P < 0.001). The PC-RV in the J group was smaller than that in the NJ group (0.28 ± 0.14 vs 0.36 ± 0.15, P = 0.013). J-wave amplitude was correlated positively with d-RVmax (P = 0.010) and negatively with PC-RV (P = 0.005). These results suggested that J waves are associated with right ventricular morphologic and functional abnormalities. Springer Japan, 2013 J wave nationallicence Electrocardiography nationallicence Magnetic resonance imaging nationallicence Right ventricle nationallicence Takeuchi Takahiro Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut Tomita Takeshi Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut Yoshie Kouji Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut Hioki Hirohumi Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut Oguchi Yasutaka Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut Miura Takashi Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut Ebisawa Souichirou Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut Motoki Hirohiko Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut Okada Ayako Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut Aizawa Kazunori Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut Izawa Atsushi Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut Miyashita Yusuke Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut Koyama Jun Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut Ikeda Uichi Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut Heart and Vessels Springer Japan 30/1(2015-01-01), 98-107 0910-8327 30:1<98 2015 30 380 https://doi.org/10.1007/s00380-013-0439-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00380-013-0439-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Takeuchi Takahiro Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut NATIONALLICENCE 700 1- Tomita Takeshi Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut NATIONALLICENCE 700 1- Yoshie Kouji Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut NATIONALLICENCE 700 1- Hioki Hirohumi Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut NATIONALLICENCE 700 1- Oguchi Yasutaka Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut NATIONALLICENCE 700 1- Miura Takashi Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut NATIONALLICENCE 700 1- Ebisawa Souichirou Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut NATIONALLICENCE 700 1- Motoki Hirohiko Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut NATIONALLICENCE 700 1- Okada Ayako Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut NATIONALLICENCE 700 1- Aizawa Kazunori Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut NATIONALLICENCE 700 1- Izawa Atsushi Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut NATIONALLICENCE 700 1- Miyashita Yusuke Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut NATIONALLICENCE 700 1- Koyama Jun Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut NATIONALLICENCE 700 1- Ikeda Uichi Department of Cardiology, Shinshu University Hospital, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut NATIONALLICENCE 773 0- Heart and Vessels Springer Japan 30/1(2015-01-01), 98-107 0910-8327 30:1<98 2015 30 380