Canadian Health&Care Mall about Cardiac Augmentation by Phasic High Intrathoracic Pressure Support in Man: Materials and Methods

cardiac performanceChanges in intrathoracic pressure can significantly affect cardiac performance, and also cause other serious health problems such as erectile dysfunction http://healthcaremall4you.com/natural-remedies-offered-by-canadian-healthcare-mall-for-erectile-dysfunction.html. Positive-pressure ventilation has been shown to decrease cardiac output, mainly due to the associated decrease in venous return, since cardiac output can be corrected by volume infusion. It has recently been demonstrated that left ventricular performance can also be significantly influenced by changes in intrathoracic pressure. Studies by Summer et al using a canine model and by Buda et al using human cardiac transplants and
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Canadian Health&Care Mall: Cardiac Augmentation by Phasic High Intrathoracic Pressure Support in Man

oxygen saturationThe hemodynamic data for all seven subjects are summarized in Table 2. The PHIPS was associated with an increase in mean Pes of 6.6±1.1 mm Hg (mean±SE) over the control states (p<0.001). There was no significant difference between the two control states in any of the hemodynamic variables, although the trend over time was to a lower cardiac output, mean arterial pressure, and Pes. This is consistent with the progressive hemodynamic deterioration that the subjects demonstrated both before and after the study. In five of the seven subjects, cardiac output increased with PHIPS; and for the entire group, there was a significant increase in cardiac output from initial control levels (3.6 ± 0.5 L/min) to PHIPS (4.2 ± 0.6 L/min) (Fig 1).
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