• Am J Emerg Med · Nov 2023

    Case Reports

    Respiratory acidosis induced ST-segment elevation.

    • Yang Cheng, Baotao Huang, and Mao Chen.
    • Department of Cardiology, West China Hospital, Sichuan University, 37 Guoxue Street, Chengdu 610041, PR China.
    • Am J Emerg Med. 2023 Nov 1; 73: 235.e5235.e7235.e5-235.e7.

    AbstractAcidosis has been reported to cause ST-segment elevation. We presented a woman with a history of rectal adenocarcinoma experienced cardiac arrest during the contrast-enhanced computed tomography examination. When spontaneous circulation returned, arterial blood gas revealed she had severe respiratory acidosis, and bedside electrocardiogram showed ST-segment elevation in anterior precordial leads. Emergent coronary angiography was normal. Echocardiography revealed no abnormality of cardiac cavity size, segmental wall motion, or pericardial echo. Carcinoma metastasis in the peritoneal cavity and lungs was detected on the contrast-enhanced computed tomography scan while the heart was not involved. The ST-segment regressed and the respiratory acidosis was corrected after she received mechanical ventilation which strongly suggested the association between acidosis and the electrocardiogram changes.Copyright © 2023 Elsevier Inc. All rights reserved.

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