Word: cardiograph
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Dates: during 1920-1929
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...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...