The accuracy of methods for indirect determination of blood pressure in children has never been adequately controlled. It is therefore not surprising that discrepancies occur between the results of different authors.1 The critical proof of the accuracy of any indirect method must be the comparability of the indirectly obtained results with directly obtained values recorded simultaneously from adequate manometers.
Comparative studies have been recorded for the auscultatory (Korotkov) and various other indirect methods in the case of adults by Wolff and von Bonsdorff2 and by Hamilton, Woodbury and Harper.3 In the case of newborn infants Woodbury, Robinow and Hamilton4 compared the direct method with the palpatory (Riva-Rocci) method. Previous attempts by other authors have been reviewed recently.5 They may be neglected here because the manometers used in those studies cannot be considered adequate.5b
Von Bonsdorff and Wolff found that values for systolic, diastolic and