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Modificacoes de forma do eletrocardiograma.

Arch Intern Med (Chic). 1944;73(3):268. doi:10.1001/archinte.1944.00210150071014.
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The author emphasizes the importance of employing a proper technic when recording an electrocardiogram. He presents tracings showing patterns characteristic of infarction that are due to technical errors. Several such types of tracings are presented throughout the monograph to emphasize the importance of controlling technic, variations in the patient's habitus and certain normal physiologic phenomena when interpreting electrocardiograms. Some of the records are interesting.

There are many illustrations. Most of them are clear, but too many are poor. The author approaches the problem in more or less the same fashion as followed in other monographs. He does not employ any new or truly original lines of presentation. As in most monographs on the subject, there is no simplification of the subject. The book fails to fulfil the needs of a beginner who is interested in electrocardiography for the first time. There is little of interest to one who is already


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