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- Title
Central haemodynamics and oxygen transport during CPPV with frequencies of 16 and 8 times per minute.
- Authors
Vuori, A.
- Abstract
During the weaning period after 18 h of mechanical ventilation following open-heart surgery, central haemodynamics, systemic oxygen transport and total oxygen consumption were assessed in a total of 11 patients receiving continuous positive pressure ventilation. Mechanical ventilatory rates of 16 and 8 times per minute were studied. Systemic arterial pressure, cardiac index, stroke volume index, left ventricular stroke work index, rate-pressure-product, and systemic oxygen transport were observed to be higher during the lower ventilatory rate. Because transmural right atrial and pulmonary capillary wedge pressures were also higher during ventilation with a frequency of eight times per minute, the lower frequency may impede venous return less. This might explain the difference found in central haemodynamics between the two ventilation frequencies.
- Publication
Acta Anaesthesiologica Scandinavica, 1986, Vol 30, Issue 4, p277
- ISSN
0001-5172
- Publication type
journal article
- DOI
10.1111/j.1399-6576.1986.tb02412.x