Intensive care medicine
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Intensive care medicine · Mar 1996
Comparative Study Clinical TrialAccuracy of oscillometric blood pressure measurement in critically ill neonates with reference to the arterial pressure wave shape.
To perform further evaluation of the oscillometric device for neonatal arterial blood pressure (ABP) measurement, using a catheter-manometer system (CMS) for accurate intraarterial measurement. We aimed to describe the influence of the radial artery wave shape on oscillometric ABP determination, as pressure wave-shape influences the relationships between systolic arterial pressure (SAP), diastolic arterial pressure (DAP) and mean arterial pressure (MAP) in the wave. These relationships are part of the algorithms contributing to the final ABP determination in the oscillometric device. ⋯ Inaccuracy of the oscillometric device may be partly explained by the incorporation of an inappropriately fixed algorithm for final ABP determination in newborns. Care should be taken when interpreting the oscillometrically derived values in critically ill newborn infants.
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Intensive care medicine · Mar 1996
Inspiratory pressure/maximal inspiratory pressure: does it predict successful extubation in critically ill infants and children?
To evaluate the accuracy of the initial negative inspiratory pressure (PI) to maximal negative inspiratory pressure (PImax) ratio in predicting extubation outcome for intubated infants and children. ⋯ The PI/PImax ratio cannot be used to predict extubation outcome in pediatric patients. Indices that predict extubation outcome in adults should not be extrapolated to infants and children before testing and validation.
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Intensive care medicine · Mar 1996
Randomized Controlled Trial Multicenter Study Clinical TrialThe automatic selection of ventilation parameters during the initial phase of mechanical ventilation.
To test a method that allows automatic set-up of the ventilator controls at the onset of ventilation. ⋯ The AutoInit ventilator settings, which were automatically derived, were acceptable for all patients for a period of 20 min and were not found to be inferior to the control ventilator settings. This makes the AutoInit method potentially useful as an automatic start-up procedure for mechanical ventilation.
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Intensive care medicine · Mar 1996
Clinical Trial Controlled Clinical TrialPhysiological effects of reduced tidal volume at constant minute ventilation and inspiratory flow rate in acute respiratory distress syndrome.
To assess the effect of changes in tidal volume (VT) with a constant inspiratory flow and minute ventilation (VE) on gas exchange and oxygen transport in acute respiratory distress syndrome (ARDS). ⋯ Tidal volumes can be reduced to 6-8 ml/kg in ARDS patients without compromising oxygen transport, while adequate CO2 elimination can be maintained.
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Intensive care medicine · Mar 1996
Clinical Trial Controlled Clinical TrialRenal effects of low-dose dopamine in patients with sepsis syndrome or septic shock treated with catecholamines.
To evaluate the renal effects of low-dose dopamine in patients with sepsis syndrome or septic shock treated with catecholamines. ⋯ The renal effects of low-dose dopamine in patients with sepsis syndrome decrease with time. No renal effect of low-dose dopamine was observed in patients with septic shock treated with catecholamines. These findings suggest a desensitization of renal dopaminergic receptors.