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A case report of pseudomyocardial infarction due to hyperkalemia Eiji Oda 1 , Junji Ishiguro 1 , Tomio Takeshige 1 , Ryohichi Saitoh 1 , Yoshifusa Aizawa 2 , Akira Shibata 2 , Shigenori Watanabe 1 , Masatoshi Yamazaki 1 , Haruo Hanawa 1 1Department of Internal Medicine, Murakami Hospital 2The First Department of Medicine, Niigata University School of Medicine pp.1235-1239
Published Date 1988/11/15
DOI https://doi.org/10.11477/mf.1404205366
  • Abstract
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A case with hyperkalemia, whose ECG mimicked acute inferior myocardial infarction is presented. On admission, she was lethargic, her systolic blood pressure was eighty mmHg and her pulse rate was 114 beats per minute. The ECG revealed sinus ta-chycardia, left atrial abnormality, PR interval of O. 18 sec, QRS width of 0.16 sec, right bundle branch block and left posterior hemiblock. The abnormal Q wave were seen in V1 and V2. T waves were peaked in V5 and V6. Elevations of the ST segment, like acute inferior myocardial infarction, were seen in II, III and aVF. At that time, blood chemistry showed potassium of 5. 9 mEq/l, Creatinine of 6. 6 mg/l, pH of 7. 184 and base excess of -15.9 mEq/l. These meta-bolic abnormalities were promptly corrected with-out hemodialysis. On the next morning, the ECG showed neither Q wave nor ST segment elevation and the serum potassium concentration was 4. 0 mEq/ 1. Cardiac enzymes were not significantly elevated throughout.


Copyright © 1988, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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