Matsubara, Beatriz Bojikian [UNESP]Bregagnollo, E. A.Tucci, PJF2014-05-202014-05-201993-02-01Brazilian Journal of Medical and Biological Research. São Paulo: Associação Bras Divulg Cientifica, v. 26, n. 2, p. 173-176, 1993.0100-879Xhttp://hdl.handle.net/11449/33506The effect of changes in left ventricular (LV) shape and dimensions due to acute arterial hypertension induced by mechanical obstruction of the aorta for 10 min on LV mass values estimated by M-mode echocardiogram was studied in 14 anesthetized dogs. Although the systolic pressure increased from 117.5 +/- 19.9 to 175.4 +/- 22.9 mmHg altered ventricular diameter from 2.77 +/- 0.49 cm to 3.17 +/- 0.67 cm (P<0.05) and wall thickness from 0.83 +/- 0.09 to 0.75 +/- 0.09 cm (P<0.05), LV mass estimated before (73.5 +/- 19.1 g) and after (78.3 +/- 26.4 g) hypertension was not significantly different. We demonstrate here for the first time that changes in LV dimensions induced by acute arterial hypertension do not modify LV mass values estimated by the M-mode electrocardiogram method.173-176engVENTRICULAR MASSACUTE ARTERIAL HYPERTENSIONM-MODE ECHOCARDIOGRAMArtigoWOS:A1993KV40200006Acesso restrito6990977122340795