Acta anaesthesiologica Scandinavica
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Acta Anaesthesiol Scand · Apr 2020
Randomized Controlled Trial Multicenter StudyHypothermic to ischaemic ratio and mortality in post cardiac arrest patients.
We studied the associations between ischemia and hypothermia duration, that is, the hypothermic to ischemic ratio (H/I ratio), with mortality in patients included in a trial on two durations of targeted temperature management (TTM) at 33°C. ⋯ We did not find any consistent evidence of a modification of the effect of TTM based on ischemia duration.
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Acta Anaesthesiol Scand · Apr 2020
Randomized Controlled TrialFlow-controlled ventilation improves gas exchange in lung-healthy patients - a randomised interventional cross-over study.
Flow-controlled ventilation (FCV) is a new ventilation mode that provides constant inspiratory and expiratory flow. FCV was shown to improve gas exchange and lung recruitment in porcine models of healthy and injured ventilated lungs. The primary aim of our study was to verify the influences of FCV on gas exchange, respiratory mechanics and haemodynamic variables in mechanically ventilated lung-healthy patients. ⋯ Flow-controlled ventilation improves oxygenation and carbon dioxide elimination within a short time, compared to VCV with identical tidal volume, inspiratory plateau pressure and end-expiratory pressure.
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Acta Anaesthesiol Scand · Apr 2020
Randomized Controlled TrialHypervolemia does not cause degradation of the endothelial glycocalyx layer during open hysterectomy performed under sevoflurane or propofol anesthesia.
Fluid-induced hypervolemia may stimulate the release of natriuretic peptides and cause degradation (shedding) of the endothelial glycocalyx layer. Sevoflurane is believed to protect the glycocalyx, but the importance of using sevoflurane to prevent shedding during routine surgery is unclear. ⋯ No relevant elevations of brain natriuretic peptide or degradation products of the glycocalyx layer were observed when hypervolemia was induced during open abdominal hysterectomy performed with sevoflurane or propofol anesthesia. Plasma volume expansion from Ringer´s lactate was pronounced.