venous oxygenation
Field strength dependence of grey matter R2* on venous oxygenation
... hard to interpret if the underlying function was not in fact linear. Future studies designed specifically to explore these relationships should use a multi-echo EPI readout and vascular crushing to separate the different ...
20
Instantaneous venous oxygenation estimation using the Photoplethysmograph (PPG) waveform
... the venous instantaneous saturation was obtained by creating the envelope by joining the troughs of the InstSat ...the venous saturation estimated using the time domain method and the instantaneous method ...
7
Calibrated BOLD using direct measurement of changes in venous oxygenation
... the venous, rather than total blood volume compartment should be used in the calibrated BOLD ...The venous compartment reacts passively to fl ow changes, whereas the arterial compartment actively constricts ...
10
Central venous oxygenation: when physiology explains apparent discrepancies
... Figure 4 Frequency distribution of mixed venous oxygen hemoglobin saturation in two populations of ‘ optimized ’ patients according to the protocol of Rivers and colleagues [52]. The left-hand panel represents the ...
8
Estimation of Venous oxygenation saturation using the finger Photoplethysmograph (PPG) waveform
... ceding trough values of the red and infrared AC PPG signal. The InstSat was aimed to provide a moment-by-moment measurement of the average oxygen saturation of the blood in all the vascular compartments in the vicinity ...
5
Measuring venous oxygenation using the photoplethysmograph waveform
... measuring venous saturation is that the arterial saturations are presumed to be the same throughout the body, while the venous saturations depend on numerous local features of the tissue being ...mixed ...
10
Venous pooling and drainage affects photoplethysmographic signals at different vertical hand positions
... the venous blood draining from a given tissue region depends on the oxygen uptake by the local tissue and rate of regional blood flow, and thus its value varies from one region to ...local venous ...
7
Mixed venous blood gases are superior to arterial blood gases in assessing acid base status and oxygenation during acute cardiac tamponade in dogs
... mixed venous blood gases with regard to acid-base status and ...mixed venous pH, PCO2, and ...mixed venous pH, PCO2, and calculated serum bicarbonate levels remained relatively ...mixed venous ...
7
Systematic review and meta-analysis of complications and mortality of veno-venous extracorporeal membrane oxygenation for refractory acute respiratory distress syndrome
... when compared to ECMO for respiratory support. Veno- arterial ECMO has been associated with mortality rates that vary from 57%, in highly experienced centres [37], to 66% according to the ELSO database [7]. In these ...
13
Pre and Apnoeic high flow oxygenation for RApid sequence intubation in The Emergency department (Pre AeRATE): study protocol for a multicentre, randomised controlled trial
... Rapid sequence intubation (RSI) is the most common method of intubation used in the Emergency Depart- ment (ED) [1]. RSI involves the immediate administra- tion of a paralytic agent following delivery of an induction ...
9
An observational study using ultrasound to assess physiological changes following fluid bolus administration in paediatric sepsis in the emergency department
... central venous pressure (CVP) values, followed by early initiation of vasoactive agents for on- going hypotension, and transfusion of blood for low central venous oxygen saturations ...
7
Monitoring oxygenation
... 38 If tissues are illuminated with infrared light, the transmitted or reflected intensity will change in relation to the overall saturation of both haemoglobin and cytochrome aa and also[r] ...
10
Kinetics of arterial carbon dioxide during veno-venous extracorporeal membrane oxygenation support in an apnoeic porcine model
... Membrane Oxygenation (ANZ ECMO) Influenza Investigators, Davies A, Jones D, Bailey M, Beca J, Bellomo R, Blackwell N, Forrest P, Gattas D, Granger E, Herkes R, Jackson A, McGuinness S, Nair P, Pellegrino V, ...
11
Position of draining venous cannula in extracorporeal membrane oxygenation for respiratory and respiratory/circulatory support in adult patients
... efficient oxygenation between RA–IVC and IVC–RA flow directions and concluded that recircula- tion was less when draining from the IVC and returning blood via the ...
5
Associations of therapeutic hypothermia with clinical outcomes in patients receiving ECPR after cardiac arrest: systematic review with meta-analysis
... 68. Lamhaut L, Tea V, Raphalen JH, An K, Dagron C, Jouffroy R, et al. Coronary lesions in refractory out of hospital cardiac arrest (OHCA) treated by extra corporeal pulmonary resuscitation (ECPR). Resuscitation. ...
13
Unexpectedly Good Neurological Outcome after Prolonged Cardiac Arrest
... membrane oxygenation (ECMO) in spite of prolonged cardiac arrest, we reported this case and reviewed the ...membrane oxygenation (VA-ECMO) support was established 54 minutes after ...
7
Blood oxygenation level-dependent MRI for assessment of renal oxygenation
... renal oxygenation in disease and to construct sophisticated mathematical models that enhance the correlation between BOLD MRI signals and intrarenal pO 2 ...
15
Oxygenation sensitive CMR for assessing vasodilator induced changes of myocardial oxygenation
... The critical element in our experimental design is that SvO 2 should reflect the degree of oxygenation of the LCX myocardium that we evaluated by BOLD SI. We cannot rule out the possibility that there was some ...
7
Impaired Autoregulation in Preterm Infants Identified by Using Spatially Resolved Spectroscopy
... and oxygenation were di- rectly dependent on arterial blood pressure, and, hence, they are consistent with the presence of a “pressure- passive” cerebral ...
10
Internal jugular venous abnormalities in transient monocular blindness
... decreased venous flow volume, and consequently less degree of venous pressure in ...downstream venous routes, such as brachiocephalic vein, is relatively ...of venous reflux in IJV found in ...
6