Quantitative measurement of normal and excessive (cor adiposum) subepicardial adipose tissue, its clinical significance, and its effect on electrocardiographic QRS voltage
Am J Cardiol. 1995 Aug 15;76(5):414-8.
doi: 10.1016/s0002-9149(99)80116-7.
In summary, adipose tissue in the heart may constitute up to 50% of the cardiac weight. The greater amounts of cardiac adipose tissue are associated with lower total 12-lead QRS voltages.