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- W2023206988 abstract "Impedance cardiography offers a simple noninvasive way of measuring stroke volume (SV), and hence cardiac output (CO), sequentially throughout pregnancy without stress to the subjects. In 3 groups of women, SV was measured with the Minnesota Impedance Cardiograph Model 304A, which measures the drop in potential produced by the passage of a constant current through the thorax between Mylar strip electrodes, 2 of which are placed around the subject's neck and another 2 around the lower part of the thorax. In addition, heart rate, arterial blood pressure, venous hematocrit, and body weight were measured at each investigation. The product of SV (ml) and heart rate (beats/min) provided the value for CO (1/min). The mean arterial pressure (MAP, Torr) was calculated as the sum of the diastolic and 1/3 of the pulse pressure. These values were used for calculation of peripheral resistance (PR) in units expressing the ratio between MAP and CO." @default.
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- W2023206988 date "1982-09-01" @default.
- W2023206988 modified "2023-09-25" @default.
- W2023206988 title "A Longitudinal Study of Cardiovascular Dynamic Changes Throughout Pregnancy" @default.
- W2023206988 doi "https://doi.org/10.1097/00132582-198209000-00002" @default.
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