Search Results - "Placek, Michal"

Applying time-frequency analysis to assess cerebral autoregulation during hypercapnia by Placek, Michał M, Wachel, Paweł, Iskander, D Robert, Smielewski, Peter, Uryga, Agnieszka, Mielczarek, Arkadiusz, Szczepański, Tomasz A, Kasprowicz, Magdalena

“…Classic methods for assessing cerebral autoregulation involve a transfer function analysis performed using the Fourier transform to quantify relationship…”
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Compliance of the cerebrospinal space: comparison of three methods by Kazimierska, Agnieszka, Kasprowicz, Magdalena, Czosnyka, Marek, Placek, Michał M., Baledent, Olivier, Smielewski, Peter, Czosnyka, Zofia

“…Background Cerebrospinal compliance describes the ability of the cerebrospinal space to buffer changes in volume. Diminished compliance is associated with…”
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The lower limit of reactivity as a potential individualised cerebral perfusion pressure target in traumatic brain injury: a CENTER-TBI high-resolution sub-study analysis by Beqiri, Erta, Zeiler, Frederick A, Ercole, Ari, Placek, Michal M, Tas, Jeanette, Donnelly, Joseph, Aries, Marcel J H, Hutchinson, Peter J, Menon, David, Stocchetti, Nino, Czosnyka, Marek, Smielewski, Peter

“…A previous retrospective single-centre study suggested that the percentage of time spent with cerebral perfusion pressure (CPP) below the individual lower…”
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Intracranial pulse pressure waveform analysis using the higher harmonics centroid by Zakrzewska, Agnieszka P., Placek, Michał M., Czosnyka, Marek, Kasprowicz, Magdalena, Lang, Erhard W.

“…Background The pulse waveform of intracranial pressure (ICP) is its distinctive feature almost always present in the clinical recordings. In most cases, it…”
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Can interhemispheric desynchronization of cerebral blood flow anticipate upcoming vasospasm in aneurysmal subarachnoid haemorrhage patients? by Placek, Michał M., Smielewski, Peter, Wachel, Paweł, Budohoski, Karol P., Czosnyka, Marek, Kasprowicz, Magdalena

“…•A non-invasive method for the cerebral blood flow asymmetry assessment is proposed.•The proposed method accounts for non-stationarity of analysed…”
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Stewardship and administrative capacity in green public procurement in the Czech Republic: Evidence from a large-N survey by Plaček, Michal, Valentinov, Vladislav, del Campo, Cristina, Vaceková, Gabriela, Ochrana, František, Šumpíková, Markéta

“…Background: The uptake of green public procurement in the Czech Republic is known to lag behind the European standards. We trace this condition back to the…”
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Using the entropy of the corneal pulse signal to distinguish healthy eyes from eyes affected by primary open-angle glaucoma by Danielewska, Monika E, Placek, Michał M, Kicińska, Aleksandra K, Rękas, Marek

“…The purpose of this study was to evaluate whether the complexity of the corneal pulse (CP) signal can be used to differentiate patients with primary open-angle…”
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Brain tissue oxygen monitoring in traumatic brain injury: part I—To what extent does PbtO2 reflect global cerebral physiology? by Svedung Wettervik, Teodor, Beqiri, Erta, Bögli, Stefan Yu, Placek, Michal, Guilfoyle, Mathew R, Helmy, Adel, Lavinio, Andrea, O'Leary, Ronan, Hutchinson, Peter J, Smielewski, Peter

“…Abstract Background The primary aim was to explore the association of global cerebral physiological variables including intracranial pressure (ICP),…”
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Complexity of brain signals is associated with outcome in preterm infants by Sortica da Costa, Cristine, Placek, Michal M, Czosnyka, Marek, Cabella, Brenno, Kasprowicz, Magdalena, Austin, Topun, Smielewski, Peter

“…A characteristic feature of complex healthy biological systems is the ability to react and adapt to minute changes in the environment. This ‘complexity’…”
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Studying Trends of Auto-Regulation in Severe Head Injury in Paediatrics (STARSHIP): protocol to study cerebral autoregulation in a prospective multicentre observational research database study by Agrawal, Shruti, Placek, Michal M, White, Deborah, Daubney, Esther, Cabeleira, Manuel, Smielewski, Peter, Czosnyka, Marek, Young, Adam, Watson, Suzanna, Maw, Anna, Hutchinson, Peter John

“…IntroductionStudying cerebral autoregulation, particularly PRx (Pressure Reactivity Index), is commonly employed in adult traumatic brain injury (TBI) and…”
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Towards autoregulation-oriented management after traumatic brain injury: increasing the reliability and stability of the CPPopt algorithm by Beqiri, Erta, Ercole, Ari, Aries, Marcel J. H., Placek, Michal M., Tas, Jeanette, Czosnyka, Marek, Stocchetti, Nino, Smielewski, Peter

“…Purpose CPPopt denotes a Cerebral Perfusion Pressure (CPP) value at which the Pressure-Reactivity index, reflecting the global state of Cerebral…”
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Changes in spectral parameters of corneal pulse following canaloplasty by Danielewska, Monika E., Kicińska, Aleksandra K., Placek, Michał M., Lewczuk, Katarzyna, Rękas, Marek

“…Purpose To ascertain whether changes in the spectral content of the corneal pulse (CP) signal, measured in vivo in primary open-angle glaucoma (POAG) patients,…”
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Critical closing pressure during experimental intracranial hypertension: comparison of three calculation methods by Kaczmarska, Katarzyna, Uryga, Agnieszka, Placek, Michał M., Calviello, Leanne, Kasprowicz, Magdalena, Varsos, Georgios V., Czosnyka, Zofia, Koźniewska, Ewa, Sierzputowski, Tomasz, Koszewski, Waldemar, Czosnyka, Marek

“…Objectives: The critical closing pressure (CrCP) defines arterial blood pressure below which cerebral arteries collapse. It represents a clinically relevant…”
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Brain tissue oxygen monitoring in traumatic brain injury—part II: isolated and combined insults in relation to outcome by Svedung Wettervik, Teodor, Beqiri, Erta, Hånell, Anders, Bögli, Stefan Yu, Placek, Michal, Guilfoyle, Mathew R, Helmy, Adel, Lavinio, Andrea, O'Leary, Ronan, Hutchinson, Peter J, Smielewski, Peter

“…Abstract Background The primary aim was to explore the concept of isolated and combined threshold-insults for brain tissue oxygenation (pbtO 2 ) in relation to…”
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Transmission of slow waves in Masimo O3 near infrared spectroscopy measures by Smith, Claudia A., Kazimierska, Agnieszka, Placek, Michał M., Beqiri, Erta, Karvandi, Elika, Czosnyka, Marek, Helmy, Adel, Smielewski, Peter

“…Cerebral autoregulation (CA) dysfunction is a key complication following brain injury. CA assessment using near-infrared spectroscopy (NIRS) offers a promising…”
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Change in Blood Flow Velocity Pulse Waveform during Plateau Waves of Intracranial Pressure by Sawicki, Karol, Placek, Michał M., Łysoń, Tomasz, Mariak, Zenon, Chrzanowski, Robert, Czosnyka, Marek

“…A reliable method for non-invasive detection of dangerous intracranial pressure (ICP) elevations is still unavailable. In this preliminary study, we…”
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Cerebral autoregulation derived blood pressure targets in elective neurosurgery by Beqiri, Erta, García-Orellana, Marta, Politi, Anna, Zeiler, Frederick A., Placek, Michal M., Fàbregas, Neus, Tas, Jeanette, De Sloovere, Veerle, Czosnyka, Marek, Aries, Marcel, Valero, Ricard, de Riva, Nicolás, Smielewski, Peter

“…Poor postoperative outcomes may be associated with cerebral ischaemia or hyperaemia, caused by episodes of arterial blood pressure (ABP) being outside the…”
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Assessment of Baroreflex Sensitivity Using Time-Frequency Analysis during Postural Change and Hypercapnia by Burzyńska, Małgorzata, Wachel, Paweł, Uryga, Agnieszka, Placek, Michał M., Kazimierska, Agnieszka, Kasprowicz, Magdalena

“…Baroreflex is a mechanism of short-term neural control responsible for maintaining stable levels of arterial blood pressure (ABP) in an ABP-heart rate negative…”
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Another One Bites the Dust: Recurrent Procurement Contracts in the Czech Republic by Plaček, Michal, Soukopová, Jana, Vaceková, Gabriela, Ochrana, František, Schmidt, Martin

“…This article deals with the phenomenon of repeated contracts, specifically the effect of trust in public contracts. Our main objective is to identify the…”
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CSF Dynamics for Shunt Prognostication and Revision in Normal Pressure Hydrocephalus by Lalou, Afroditi Despina, Czosnyka, Marek, Placek, Michal M, Smielewski, Peter, Nabbanja, Eva, Czosnyka, Zofia

“…Despite the quantitative information derived from testing of the CSF circulation, there is still no consensus on what the best approach could be in defining…”
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