In presenting for your consideration the subject of functional heart affection, I have a two-fold object in view: First, to illustrate by appropriate cases the undoubtful forms of heart neurosis, and secondly, to call your attention to borderland conditions where we are frequently in a quandary as to whether the case would be classified as myocarditis or whether the cause lies in a functional disturbance of the nervous mechanism of the heart's action.
The subject of myocarditis and its clinical phenomena have lately been the subject of much discussion and the chronic form at least is of much interest to us, especially in our office practice where it often is important to know, and difficult to determine whether a given irregularity of the heart is of organic or functional origin. In the same way, when diseases of the muscular walls or of the valves do not enter into consideration at
HOPPE HH. THE NEUROSES OF THE HEART.. JAMA. 1902;XXXVIII(21):1345-1351. doi:10.1001/jama.1902.62480210003001a