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New Echocardiographic Observations in a Patient With Dissimilar Atrial Rhythms
Hirofumi Ichiyasu, MD;
Shozo Nabeyama, MD;
Yasunori Fukuchi, MD;
Kazuo Takahara, MD;
Yasuhide Nakashima, MD;
Akio Kuroiwa, MD
Arch Intern Med. 1982;142(12):2215-2217.
Abstract
• A patient with an impure flutter was found to have dissimilar atrial rhythms that were confirmed by direct ECG recordings. Echocardiographic studies disclosed that the a waves on the mitral echocardiogram occurred synchronously with the a waves on the esophageal ECG that, in turn, showed atrial flutter at a rate of 300 beats per minute. However, the a waves on the tricuspid echocardiogram coincided closely with the P waves on a surface ECG (lead V) that disclosed a chaotic atrial tachyarrhythmia. These results suggest that echocardiographic study, in conjunction with an esophageal ECG, may be a useful, noninvasive technique for the diagnosis of dissimilar atrial rhythms.
(Arch Intern Med 1982;142:2215-2217)
Author Affiliations
From the Second Department of Internal Medicine, University of Occupational and Environmental Health School of Medicine, 807 Kitakyushu, Japan.
Footnotes
Accepted for publication May 3, 1982.
Reprint requests to the Second Department of Internal Medicine, University of Occupational and Environmental Health School of Medicine, 807 Kitakyushu, Japan (Dr Ichiyasu).
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