Measuring the Base of the Triangle is a Useful Tool to Differentiate Between Electrocardiographic Patterns of Healthy Athletes and Brugada Syndrome

The investigators determined the point of maximum ascent in the type 1 BS pattern as the J point, but we know that sometimes this is not so because the J point can in certain cases be observed somewhat after the high takeoff.3 However, in BS, the ST segment slopes downward, so the ratio STJ/ST 80 ms is >1, as the investigators well conclude in their report. [...]to exactly measure where the QRS ends in leads V1 and V2, it is not useful to measure from the beginning of the QRS to the high takeoff.