Neurocritical care
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Global cerebral edema (GCE) is a manifestation of early brain injury (EBI) after subarachnoid hemorrhage (SAH) and is an independent risk factor for poor outcome. The lack of a quantitative method to measure GCE limits the study of its pathophysiology. The goal of this study is to develop a quantitative surrogate marker that represents GCE after SAH. ⋯ GCE can be quantified using volumetric analysis of SSV measurements on routine CT scans. Smaller SSV on admission is predictive of worse clinical outcomes. SSV may be an important marker of EBI after SAH.
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Deep-venous thrombosis (DVT) and pulmonary embolism (PE) are major causes of morbidity and mortality in patients with acute ischemic stroke. This study is the first to examine the risk of venous thromboembolism in patients with large hemispheric infarction undergoing decompressive hemicraniectomy. ⋯ The rate of DVT and PE is remarkably high in patients with large hemispheric infarction undergoing decompressive hemicraniectomy despite prophylactic measures. We recommend routine screening for DVT in this population. Interventions beyond the standard prophylactic measures may be necessary in this high-risk group.
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The incidence of cerebral infarction and poor outcome in patients with aneurysmal subarachnoid hemorrhage (aSAH) is reduced by oral nimodipine but acute effects of the drug may include a significant decrease in mean arterial blood pressure (MAP). A dose reduction or discontinuation of the drug is recommended if recurrent MAP drops occur. The aim of our study was to evaluate the frequency and clinical significance of nimodipine dose modifications in patients suffering from aSAH. ⋯ Our results show that dose reduction or discontinuation of nimodipine due to changes in MAP occur frequently in clinical routine and may be associated with unfavorable clinical outcome.
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Heart Rate Variability Predicts Neurogenic Pulmonary Edema in Patients with Subarachnoid Hemorrhage.
An alternation of sympathetic and vagal nervous activity has been suggested to be one possible mechanism of neurogenic pulmonary edema (NPE) in patients with subarachnoid hemorrhage (SAH). The study aimed to explore if sympathovagal modulation assessed by frequency domains of heart rate variability (HRV) is associated with impending NPE in patients with SAH. ⋯ Loss of cardiac variability and depressed sympathovagal modulation, represented by TP and LF %, may predict the development of NPE in the early stage in patients with SAH.
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Patients with severe stroke who require mechanical ventilation and neurointensive care unit (NICU) management often require a tracheostomy (TT). The optimal time point for TT remains unclear and a controversy in everyday NICU life. Here, we prospectively evaluated a score for prediction of TT need in NICU patients with cerebrovascular disease. ⋯ Based on this monocentric study, the SETscore seems to be a valid tool to indicate prolonged NICU-LOS and VT, as well as TT need in cerebrovascular NICU patients. Confirmation of these results in larger cohorts with various settings may help to develop the SETscore as a decisive tool on primary TT early in time to avoid extubation failure.