Báo cáo y học: " Equipment review: Continuous assessment of arterial blood gases" potx
Báo cáo y học: " Equipment review: Continuous assessment of arterial blood gases" potx
... diagnostic blood testing. Itsaccuracy, rapidity and utility in blood conservation. JAMA 1991,266:382-389.doi:10.1186/cc2Cite this article as: Roupie: Equipment review: Continuous assessment of arterial ... arterial blood gases [21].Intra -arterial blood gas monitorsUnlike on-demand catheters, IABG monitors offer theinteresting possibility of ensuring real-time continuous measurement of arterial blood ... electrochemical measurement of arterial blood samples, continuous IABG monitoring essentially pro-vided reliable and clinically accurate blood gas resultsfor pH and PaCO2even with highly abnormal values(PaCO2>90mmHg,pH<7.1).Furthermore,whenlooking...
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Báo cáo y học: "Equipment review: Gastric intramucosal pH measurement" pptx
... study the air wasanalyzed by a blood gas analyzer, its use has opened bythe possibility of determining intramucosal PCO2bycapnography.Capnography is the basis of some new systems fornearly ... reliability and variability of gastric tono-metry, and to analyze the causes of the occasionalmisinterpretation of its results.The gastric tonometry technique — causes of misinterpretation of the ... fornearly continuous monitoring of intramucosal PCO2.One r ecently validated system allows continuous recir-culation of gas through the balloon of the tonometer[35]. The new system was compared...
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Báo cáo y học: " Equipment review: Pulmonary uptake and modes of administration of inhaled nitric oxide in mechanically-ventilated patients" ppt
... fluctuation of tracheal NOconcentration can serve as an index of the extent of alveolar disease as well as the severity of pulmonaryhypoperfusion. Continuous monitoring of the fluctua-tion of tracheal ... affini ty of NO for the heme moiety of hemoglo bin, blood plays a key role in the clearance of NO as itcrosses the alveolo-capillary membrane.From these experimental data it can be theoreticallyassumed ... administrationPrincipleThis method of administration consists of delivering a continuous flow of NO (regulated by a nitrogen flowmeter) into the proximal end of the inspiratory limb of the ventilatory circuit. The...
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Báo cáo y học: "Equipment review: New techniques for cardiac output measurement – oesophageal Doppler, Fick principle using carbon dioxide, and pulse contour analysis" pot
... manufacturers of oesophageal Doppler devicesprovide measures of systemic cardiac output rather than of descending aortic blood flow. They calculate the systemicvalues by assuming a constant partition of ... measure-ment of blood flow velocity in the descending aorta by means of a Doppler transducer (4 MHz continuous or 5 MHz pulsedwave, according to the type of device) at the tip of a flexibleprobe. ... oxygen (FiO2)greater than 60% because of the poor accuracy of the para-magnetic oxygen sensors that measured inspired and expiredfractions of oxygen [13]. Therefore, this technique is often...
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Báo cáo y học: " A retrospective quality assessment of pre-hospital emergency medical documentation in motor vehicle accidents in south-eastern Norway"
... University Hospital, Norway.3Department of Anaesthesiology, AkershusUniversity Hospital, Oslo, Norway.4University of Oslo, Faculty Division OsloUniversity Hospital, Kirkeveien, Oslo, Norway.Authors’ ... repeated every 20 min Y NRespiratory rate (RR) RR exact value documented Y NRR RTS category 43210RR RTS category inferred Y NRR assessments repeated every 20 min Y NSystolic blood pressure (SBP) ... documented Y NSBP RTS category 43210SBP RTS category inferred Y NSBP assessments repeated every 20 min Y NVariables relevant for mechanism of injury(MOI)≥ 2 MOI factors documented Y NMOI...
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Báo cáo y học: "Statistics review 5: Comparison of means" docx
... usual way. The only difference is inthe calculation of the SE.Table 3Mean and standard deviation of mean arterial pressureMean arterial pressure (mmHg)Standard Early goal-directed therapy therapyNumber ... value gives no indication of the size of any dif-ference; it merely indicates the probability that the differencearose by chance. In order to assess the magnitude of any dif-ference, it is essential ... early goal-directed therapy may be successful in raisingmean arterial pressure by between 9.3 and 18.7 mmHg. Asalways, it is important to interpret this finding in the context of the study population...
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Báo cáo y học: " Clinical review: Fever in intensive care unit patients" potx
... No 3 Ryan and LevyThe goal of the present review is to question, by criticallyevaluating the literature, the practice of routinely treating feverin the ICU patient. The pathophysiology of fever ... models of sepsis [43,44]. The ability of the heat shock response to inhibit a wide array of inflam-matory mediators implies that it must modulate the septicresponse at one or more key regulatory ... followed dailyNF-κB activity obtained from nuclear extracts of peripheral blood monocytes. They found that survivors of septic shock,when compared with patients who died, had significantly lessincreases...
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Báo cáo y học: "Clinical review: The management of hypertensive crises" ppsx
... [19,23,24].The syndrome of hypertensive emergency was first describedby Volhard and Fahr in 1914 and was characterized bysevere accelerated hypertension, accompanied by evidence of renal disease and by signs ... of antihyperten-sive therapy, this complication occurred in up to 7% of thehypertensive population [29]. The epidemiology of hyperten-sive crises parallels the distribution of essential hypertensionin ... adequate bioavailability of thiosulfate.Nitroprusside may cause cytotoxicity because of the release of cyanide with interference with cellular respiration[122,123]. Cyanide toxicity has been documented...
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Báo cáo khoa học: "Clinical review: Bedside assessment of alveolar recruitment" doc
... first to quantify the amount of recruitmentinduced by PEEP [14]. To accomplish this goal, theyassessed the end-expiratory lung volume change, due to aPEEP increase, by continuously recording the ... sedation and paralysis may affect recruitment of acuterespiratory distress syndrome lungs that are particularly prone to alveolar instability. In the presentarticle, we review the recently reported ... and arterial oxygenation [18,28]. The correlations foundin these two studies are unfortunately relatively weak, sug-gesting that arterial oxygenation cannot reliably predict theamount of recruitment...
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Báo cáo khoa học: "Equipment review: An appraisal of the LiDCO™plus method of measuring cardiac output." docx
... beenscientifically validated. The PiCCO™ system may only beused with a cannula placed in the femoral or axillary artery.Changes in the damping coefficient of the arterial pressuretransducing system may profoundly ... therapy.Pulse contour analysisThe various features of the arterial pressure waveform aredetermined by the physiology of both the heart and theperipheral circulation. Any complex waveform may ... underlying technology is similar to that employed by thePiCCO™ (Pulsion systems, Munich, Germany) system, whichuses transpulmonary thermodilution to calibrate pulse contouranalysis software....
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