The term Brugada phenocopy was first coined by Baranchuk et al1 in 2012. They also proposed classification and updated the definition of BrP. The term is used when:
There are many causes of BrP described in the literature, such as hyperkalemia, myocardial infarction, pulmonary embolism, inappropriate use of a high-pass filter, and yellow oleander poisoning.3 These have been classified into 6 etiological categories: metabolic conditions, mechanical compression, ischemia and pulmonary embolism, myocardial and pericardial disease, ECG modulation, and miscellaneous.2
The most common cause of BrP described in the literature is hyperkalemia. A PubMed search using the terms Brugada phenocopy and hyperkalemia yielded 24 results. However, when analyzing all the search results for Brugada phenocopy and electrocardiographic pattern, we found 34 reported cases of BrP due to hyperkalemia. Xu et al4 found that the mean (SD) potassium level of patients with BrP was 7.45 (0.89) mEq/L when they analyzed 27 cases of BrP induced by hyperkalemia. In the current patient also, the potassium value was closer to the mean range observed. They also reported that the mean (SD) age of patients presenting with BrP due to hyperkalemia was 53 (15) years. The estimated mean (SD) time of resolution was 7 (3) hours.