RT Journal A1 Selzer A T1 THe oscillometric vectocardiogram. JF Archives of Internal Medicine JO Archives of Internal Medicine YR 1969 FD May 1 VO 123 IS 5 SP 602 OP 603 DO 10.1001/archinte.1969.00300150120024 UL http://dx.doi.org/10.1001/archinte.1969.00300150120024 AB Tandowsky's monograph deals with "oscillometric" vectorcardiography, that is, the analysis of photographically obtained tracings representing oscilloscopic integration of two electrocardiographic leads. He uses the most popular lead system-the Frank leads—and records them on the type of oscilloscope (Hart) which can display ordinary loops as well as "shifts" (sweeps). The book contains 25 chapters of which the first eight—fully one third of the book—are devoted to theoretical considerations and the mathematics of the Frank lead system. Except for a customary section on basic electrophysiology (the dipole theory), the average clinician is likely to find this section beyond his comprehension. The following 14 chapters present clinical aspects of vectorcardiography dealing with ventricular hypertrophy, myocardial infarction, conduction defects, and other familiar subjects. One is surprised to find the chapter on bundlebranch block entitled "Heart Block," as this is not the usual connotation of this term. Noteworthy subjects include drug effects and the exercise