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Electrocardiogram alterations in non-traumatic brain injury: a systematic review
AbstractThe presence of abnormal electrocardiograms in individuals without known organic heart disease is one of the most common manifestations of cardiac dysfunction occurring during acute non traumatic brain injury. The primary goal of the present review is to provide an overview of the available data and literature regarding the presence of new-onset electrocardiographic (ECG) alterations in acute non traumatic brain injury. The secondary aim is to identify the incidence of ECG alterations and consider the prognostic significance of new-onset ECG changes in this setting. To do so, English language articles from January ...
Source: Journal of Clinical Monitoring and Computing - September 22, 2023 Category: Information Technology Source Type: research

Reliability of effective arterial elastance using peripheral arterial pressure as surrogate for left ventricular end-systolic pressure
AbstractTo compare the effective arterial elastance (Ea) obtained from the arterial pressure with Ea calculated from left-ventricular (LV) pressure –volume analysis. Experimental study. LV pressure–volume data was obtained with a conductance catheter and arterial pressures were measured via a fluid-filled catheter placed in the proximal aorta, femoral and radial arteries. Ea was calculated as LV end-systolic pressure (ESP)/stroke volume (SV ). Experimental protocol consisted sequentially changing afterload (phenylephrine/nitroprusside), preload (bleeding/fluid), and contractility (esmolol/dobutamine). 90% of systolic p...
Source: Journal of Clinical Monitoring and Computing - December 14, 2018 Category: Information Technology Source Type: research

Evaluation of near infrared spectroscopy for detecting the β blocker-induced decrease in cerebral oxygenation during hemodilution in a swine model
Abstract β blockers reduce cerebral oxygenation after acute hemodilution and may contribute to the incidence of stroke when used perioperatively. The goal of the study was to investigate whether cerebral tissue oxygenation using near infrared spectroscopy can detect the β blocker-induced decrease in cerebral oxygenation depending on the severity of hemodilution and/or the dose of β blockers. Animals were anesthetized with 2 % isoflurane and randomly assigned to a landiolol or esmolol group. After baseline measurement, landiolol or esmolol was administered at 40 µg/kg/min for 20 min, increased to 200 µg/kg...
Source: Journal of Clinical Monitoring and Computing - February 10, 2015 Category: Information Technology Source Type: research