caa a22 4500 445825502 CHVBK 20180317145258.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s00246-011-0078-6 doi (NATIONALLICENCE)springer-10.1007/s00246-011-0078-6 A Case of Cor Triatriatum With an Abnormal P Wave: The Pacemaker Action From the Specialized Tissue in the Abnormal Septum [Elektronische Daten] [Yoshimichi Kudo, Mariko Kaneko, Makoto Nakazawa, Sachiko Tomita] A boy presented with an abnormal P wave shown on an electrocardiogram (ECG) checkup at school. An echocardiogram and contrast-enhanced computed tomography (CT) showed cor triatriatum with a slit-like opening between the accessory chamber and the left atrium located along the interatrial septum. The boy underwent open heart surgery for excision of the anomalous membrane, and a postoperative ECG showed normal P waves. The excised tissue was examined immnunohistopathologically using antihyperpolarization-activated cyclic nucleotide-gated potassium channel 4 (HCN4) antibody and other staining. The authors confirmed the existence of cells positive to HCN4, indicating that they were sinoatrial node cells or at least cells with electrical automaticity. Springer Science+Business Media, LLC, 2011 ECG checkup nationallicence HCN4 nationallicence Sinoatrial node cell nationallicence Kudo Yoshimichi Department of Pediatrics, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, 7-115 Yatsuyamada, 963-8563, Koriyama, Fukushima, Japan aut Kaneko Mariko Department of Pediatrics, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, 7-115 Yatsuyamada, 963-8563, Koriyama, Fukushima, Japan aut Nakazawa Makoto Pediatric and Lifelong Congenital Cardiology Institute, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, 7-115 Yatsuyamada, 963-8563, Koriyama, Fukushima, Japan aut Tomita Sachiko Department of Pediatric Cardiology, Tokyo Women's Medical University, Tokyo, Japan aut Pediatric Cardiology Springer-Verlag 32/8(2011-12-01), 1244-1248 0172-0643 32:8<1244 2011 32 246 https://doi.org/10.1007/s00246-011-0078-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00246-011-0078-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kudo Yoshimichi Department of Pediatrics, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, 7-115 Yatsuyamada, 963-8563, Koriyama, Fukushima, Japan aut NATIONALLICENCE 700 1- Kaneko Mariko Department of Pediatrics, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, 7-115 Yatsuyamada, 963-8563, Koriyama, Fukushima, Japan aut NATIONALLICENCE 700 1- Nakazawa Makoto Pediatric and Lifelong Congenital Cardiology Institute, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, 7-115 Yatsuyamada, 963-8563, Koriyama, Fukushima, Japan aut NATIONALLICENCE 700 1- Tomita Sachiko Department of Pediatric Cardiology, Tokyo Women's Medical University, Tokyo, Japan aut NATIONALLICENCE 773 0- Pediatric Cardiology Springer-Verlag 32/8(2011-12-01), 1244-1248 0172-0643 32:8<1244 2011 32 246 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer