Carbon monoxide damages many organs, including the heart. Moderate to severe poisoning can cause alterations in the ECG.


ECG changes of myocardial toxicity:

(1) ischemic changes in ST segments

(2) ischemic changes in T waves

(3) arrhythmias


These changes may be accompanied b:

(1) angina

(2) alterations in serum markers (CK, troponin)

(3) congestive heart failure

(4) sudden death


The presence of myocardial injury is a criterion for hyperbaric oxygen therapy.


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