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The prognostic value of an isolated J-point depression, or rapidly upsloping ST-segment, on an exercise ECG has long been assumed to be a benign variant. However, little or no data supporting this assumption may be found in the literature. Our task was to examine if a rapidly upsloping ST-segment on an exercise ECG is associated with changes in risk of dying from CHD in 2014 healthy middle-aged men followed for 35 years.

Rapidly upsloping ST-segment on exercise ECG: a marker of reduced coronary heart disease mortality risk