Abstract
The Department of Physiology, National Hospitals' Joint Study Unit, presents the following recommendations.
1. In Japanese, the chest leads should be recorded on the scale of 0.5 cm, deflection for 1mV. The usual scale of 1.0cm, for 1mV. in standard leads results in scale out in many cases owing to the higher voltage of the complexes in the chest leads.
2. The article “SV1+RV5″≤35mV.” alone, in “electrocardiographic criteria of left ventricular hypertrophy” by Sokolow-Lyon, makes risk of containing many pseudo-positive cases in Japanese.
The decision should be done on the basis of “40-45mV.”, and also of other articles in consideration.
3. In the cases of hypoteinsive disease, the E. K. G. should be taken not only in the supine position, but also in the erect positon.
