Sinus node dysfunction with interatrial conduction delay observed after left atrial myxoma resection through the superior septal approach

• Published in: Journal of Arrhythmia Vol. 28; no. 5; pp. 300 - 304
• Main Authors: Susumu Miyazaki, Katsuhito Fujiu, Hiroaki Sugiyama, Takahide Murasawa, Jun Yokota, Keigo Iwazaki, Toshiya Kojima, Takeki Suzuki, Kazuo Asada, Hisayoshi Tamai, Yasushi Imai, Hiroshi Yamashita, Yasunobu Hirata, Ryozo Nagai
• Format: Journal Article
• Language: Japanese
• Published: Japanese Heart Rhythm Society 25.10.2012
• ISSN: 1880-4276; 1883-2148

[ABSTRACT] We report on a 64-year-old female patient who underwent cardiac surgery for left atrial myxoma, using the superior septal approach with large atrial septal wall resection and patch closure. The superior septal approach is reported to be a relatively safe method for preventing the development of sinus node dysfunction after cardiac surgery. However, this patient developed sinus node dysfunction after surgery and required the implantation of a permanent pacemaker. Moreover, in this case, determining the appropriate positions of the pacemaker leads was difficult because of the presence of a large conduction delay in the interatrium. Selecting the appropriate atrioventricular delay settings was important in order to achieve proper sequential contractions between the left atrium and the left ventricle. (C) 2012 Japanese Heart Rhythm Society. Published by Elsevier B.V. All rights reserved.