Word: cardiographs
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...slapped him on the back and told him that his heart was as sound as a dollar. The underlying conditions which bring on an attack of angina pectoris usually exist in the arteries of the heart muscle. Yet the physician may not be able to detect them with a cardiograph or x-rays. In general, honest doctors admit that angina pectoris and its causes baffle them, that all they can do is to stand off Death for a while...
...rejected all three, picked himself. A spider bit his little finger. A sharp pain shot through his hand, quickly spread up to his shoulder. Violent abdominal cramps doubled him up. His blood pressure plummeted. Gasping with pain, Professor Blair insisted on having his heart action recorded on a cardiograph before he would take narcotics. Two days in a hospital gave him time to reflect on the "black widow's" virulency. He has not yet analyzed its poison, but is sure it is not comparable to any other spider poison in his experience...
...with oxygen, with serum, and by other more technical means, until the number of deaths recorded from each has become less and less. But on the other hand the recent cardioscope is merely the continuation of the idea of other inventions dealing with surgery of the chest. The cardiograph--an instrument for recording heart-beats; electric photography, photographic magnifying of stethoscopic sounds, and the comparatively recent development of adrenalin have all helped in the medical warfare for the saving of mortal hearts, so that now this last "disease of civilization" seems succumbing to the attacks of science...
Progress in thoracic (chest) surgery has been phenomenal within the past few years, says Dr. Lilienthal. The development of adrenalin, the invention of the cardiograph (for recording heart action on smoked paper), the use of the phonograph to magnify stethoscopic sounds, electric photography of the heart in operation and other innovations have contributed to this result. But the increase of heart strain in our headlong urban life is giving the medical and surgical profession serious cause for worry. Organic diseases of the heart are now the largest single cause of death in the registration area of the United States, having...