The patient was a 65-year-old woman who attended the emergency room for sudden dyspnea with onset 12hours earlier. Her relevant medical history included metastatic breast adenocarcinoma, for which she had undergone mastectomy 4years earlier, and received radiotherapy. In recent months, several lines of chemotherapy had been administered. The Figure shows the electrocardiogram recorded in the emergency room. What do you think was the most likely diagnosis?

• 1.

  Acute myocardial infarction resulting from obstruction of the left anterior descending artery

• 2.

  Isolated acute right ventricular myocardial infarction

• 3.

  Acute pulmonary embolism

• 4.

  Myocardial infiltration due to metastasis

Figure

(0.72MB).

Submit your answer to http://www.revespcardiol.org/en/electroreto/72/05. The solution will be published in the next issue (June 2019). #ECGChallenge #RetoECG.