Coronary Sinus Rhythms and Auriculoventricular Nodal Rhythms

Summary To sum up it may be said that only 8 of these 43 cases of coronary sinus and A‐V nodal rhythm seemed to indicate a scarlatina myocarditis. In another 3 cases the type of rhythm was uncertain but heart symptoms made a diagnosis of myocarditis probable. 3 rhythms were query pathological. and the other 29 were possibly physiologically normal phenomena. Of the latter there were 14 which could be said to be quite definitely constitutional in nature and could be reproduced at a follow‐up examination. In another:3 cases a minor displacement of the pacemaker appeared instead. In 6 of the cases of passive nodal rhythm no shifting at all reappeared and here a connection with the scarlatina must be considered, either on the basis of myocarditis or, more probably, vegetative factors.