Search Results - "Roubik, Karel"

Pulse Oximeter Performance during Rapid Desaturation by Horakova, Lenka, Roubik, Karel

“…The reliability of pulse oximetry is crucial, especially in cases of rapid changes in body oxygenation. In order to evaluate the performance of pulse oximeters…”
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Novel design of inspiratory flow generation and gas mixing for critical care ventilators suitable for rapid production and mass casualty incidents by Roubik, Karel, Ort, Vaclav, Horakova, Lenka, Walzel, Simon

“…Scarcity of medical resources inspired many teams worldwide to design ventilators utilizing different approaches during the recent COVID-19 pandemic. Although…”
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Perlite is a suitable model material for experiments investigating breathing in high density snow by Roubik, Karel, Sykora, Karel, Sieger, Ladislav, Ort, Vaclav, Horakova, Lenka, Walzel, Simon

“…Outdoor breathing trials with simulated avalanche snow are fundamental for the research of the gas exchange under avalanche snow, which supports the…”
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Cranial Electrode Belt Position Improves Diagnostic Possibilities of Electrical Impedance Tomography during Laparoscopic Surgery with Capnoperitoneum by Koldova, Kristyna, Rara, Ales, Muller, Martin, Tyll, Tomas, Roubik, Karel

“…Laparoscopic surgery with capnoperitoneum brings many advantages to patients, but also emphasizes the negative impact of anesthesia and mechanical ventilation…”
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Electrical Impedance Tomography Can Be Used to Quantify Lung Hyperinflation during HFOV: The Pilot Study in Pigs by Ort, Vaclav, Roubik, Karel

“…Dynamic hyperinflation is reported as a potential risk during high-frequency oscillatory ventilation (HFOV), and its existence has been documented both by…”
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Perlite Has Similar Diffusion Properties for Oxygen and Carbon Dioxide to Snow: Implications for Avalanche Safety Equipment Testing and Breathing Studies by Walzel, Simon, Rozanek, Martin, Roubik, Karel

“…On average, one hundred people die each year under avalanche snow. Despite extensive global research on gas exchange in buried avalanche victims, it remains…”
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Frequency and duration of extreme hypoxemic and hyperoxemic episodes during manual and automatic oxygen control in preterm infants: a retrospective cohort analysis from randomized studies by Bachman, Thomas E, Onland, Wes, van Kaam, Anton H, Roubik, Karel, Hummler, Helmut D, Lal, Mithilesh, Lista, Gianluca, Fajardo, Carlos A

“…Objective Neonatal exposure to episodic hypoxemia and hyperoxemia is highly relevant to outcomes. Our goal was to investigate the differences in the frequency…”
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In Vitro Estimation of Relative Compliance during High-Frequency Oscillatory Ventilation by Matejka, Jan, Rozanek, Martin, Rafl, Jakub, Kudrna, Petr, Roubik, Karel

“…High-frequency oscillatory ventilation (HFOV), which uses a small tidal volume and a high respiratory rate, is considered a type of protective lung ventilation…”
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Ultrasound detection of diaphragm position in the region for lung monitoring by electrical impedance tomography during laparoscopy by Buzkova, Kristyna, Muller, Martin, Rara, Ales, Roubik, Karel, Tyll, Tomas

“…During laparoscopic surgery, a capnoperitoneum is created to optimize the operating space for surgeons. One effect of this is abdominal pressure which alters…”
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Model of SpO2 signal of the neonate by Huttova, Veronika, Rafl, Jakub, Möller, Knut, Bachman, Thomas E., Kudrna, Petr, Rozanek, Martin, Roubik, Karel

“…The advantages of automatic control of the fraction of inspired oxygen in neonates have been documented in recently published clinical trials. Many control…”
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Computer model of oxygenation in neonates by Rafl, Jakub, Huttova, Veronika, Möller, Knut, Bachman, Thomas E., Tejkl, Leos, Kudrna, Petr, Rozanek, Martin, Roubik, Karel

“…Maintaining a prescribed peripheral oxygen saturation (SpO ) target during routine care of neonates is challenging and inspired fraction of oxygen (FiO )…”
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Intravenous administration of normal saline may be misinterpreted as a change of end-expiratory lung volume when using electrical impedance tomography by Sobota, Vladimír, Müller, Martin, Roubík, Karel

“…Electrical impedance tomography (EIT) is a noninvasive imaging modality that allows real-time monitoring of regional lung ventilation. The aim of the study is…”
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Work of Breathing into Snow in the Presence versus Absence of an Artificial Air Pocket Affects Hypoxia and Hypercapnia of a Victim Covered with Avalanche Snow: A Randomized Double Blind Crossover Study by Roubík, Karel, Sieger, Ladislav, Sykora, Karel

“…Presence of an air pocket and its size play an important role in survival of victims buried in the avalanche snow. Even small air pockets facilitate breathing…”
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Phrenic nerve stimulation prevents diaphragm atrophy in patients with respiratory failure on mechanical ventilation by Soták, Michal, Roubík, Karel, Henlín, Tomáš, Tyll, Tomáš

“…Diaphragm atrophy and dysfunction is a major problem among critically ill patients on mechanical ventilation. Ventilator-induced diaphragmatic dysfunction is…”
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Temporary phrenic nerve stimulated patients: What is the role of ultrasound examination? by Soták, Michal, Tyll, Tomáš, Roubík, Karel

“…Background Prolonged mechanical ventilation caused by ventilator‐induced diaphragm dysfunction (VIDD) is a serious problem in critically ill patients…”
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Spontaneous Breathing of Heliox Using a Semi-Closed Circuit: A Bench Study by Roubík, Karel, Zazula, Roman, Strnadová, Adéla, Zábrodský, Vladimír, Spálený, Antonín, Müller, Martin, Chlumský, Jan, Tyll, Tomáš

“…Introduction: The use of helium-oxygen mixture (heliox) for ventilation has an advantage in patients with obstruction of the airways. The physical properties…”
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Design and performance of a flow sensor CoroQuant used with emergency lung ventilator CoroVent during COVID-19 pandemic by Bís, Ladislav, Roubík, Karel

“…At the time of COVID-19 pandemic onset in spring 2020 a project CoroVent was initiated with the aim to design and produce emergency lung ventilators and…”
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Tidal volume significantly affects oxygenation in healthy pigs during high-frequency oscillatory ventilation compared to conventional ventilation by Roubík, Karel, Ráfl, Jakub, Rožánek, Martin, Kudrna, Petr, Mlček, Mikuláš

“…The role of high-frequency oscillatory ventilation (HFOV) has long been debated. Numerous studies documented its benefits, whereas several more recent studies…”
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Dynamic Changes of Perfusion Index During Hypoxemia and Hypercapnia in Outdoor Experiments by Lenka, Horakova, Petr, Kudrna, Karel, Roubik

“…Perfusion index (PI) derived from pulse oximetry is a well-recognized parameter for assessment of perfusion changes in peripheral tissues under different…”
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Effects of pleural effusion drainage in the mechanically ventilated patient as monitored by electrical impedance tomography and end-expiratory lung volume: A pilot study by Rara, Ales, Roubik, Karel, Tyll, Tomas

“…In patients with pleural effusion (PLE) monitored by Electrical Impedance Tomography (EIT) an increase in end-expiratory lung impedance (EELI) is observed…”
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