Severe substernal pain coming on after exertion, radiating to the left arm, lasting a brief
moment, yet compelling the patient to remain immobile from the physical suffering and from
a mental anguish that overwhelms him with a sense of imminent death—this picture is
looked on by all as that of typical, true, cardiovascular angina, and especially when the
arteries are found to be sclerotic and the blood-pressure high. A prognosis is made of
sudden death in the near future from a recurrence of the paroxysm, a prediction only too …