How often should we perform arterial blood gas analysis during thoracoscopic surgery?

Ganter, Michael T.; Schneider, Uwe; Heinzelmann, M; Zaugg, Michael; Lucchinetti, Eliana; Zollinger, Andreas; Hofer, Christoph K.

doi:10.1016/j.jclinane.2007.06.006

Cited by 12 publications

(3 citation statements)

References 28 publications

(44 reference statements)

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“…The ABG test is used to detect hypoxia (0-80 mm Hg), normoxia (80-100 mm Hg), and hyperoxia (> 100 mm Hg), but it can also be used to measure parameters such as the level of carbon dioxide pressure in arterial blood (PaCO 2 ), pH, concentration of bicarbonate in arterial blood (HCO 3 -), and excess or deficit of base in arterial blood (BE), thus allowing the assessment of ventilation and the body's acid-base balance [8]. However, continuous measurement of PaO 2 and other gas exchange parameters is not feasible [9]. The commonly used method of blood saturation monitoring is relatively accurate, but it only provides information on changes in arterial blood oxygen pressure within the range 0-100 mm Hg.…”

Section: Arterial Blood Gas Testmentioning

confidence: 99%

Usefulness of oxygen reserve index (ORi) in clinical practice

Barud

2023

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Oxygen is the most common and widely used drug. Oxygen therapy is used not only among mechanically ventilated patients in intensive care units, but also in the perioperative period and in patients requiring oxygen supplementation in other hospital wards. The main methods of monitoring the blood oxygenation level include arterial blood gases and pulse oximetry. A new parameter that allows the monitoring of patients' oxygenation status is the oxygen reserve index (ORi). The ORi provides easy, non-invasive, bedside monitoring of oxygen reserve capacity. The oxygen reserve index reflects the partial pressure of oxygen in arterial blood (PaO 2 ) in the range 100-200 mm Hg. It therefore allows the detection of mild hyperoxia, enabling the safe use of lower concentrations of oxygen in the breathing mixture. It is also a useful tool in predicting impending hypoxia. This paper summarizes the usefulness of oxygen reserve index monitoring in various clinical situations in everyday anaesthesiology practice. StreszczenieTlen jest najczęściej i najpowszechniej używanym lekiem. Tlenoterapia stosowana jest wśród wentylowanych mechanicznie pacjentów oddziałów intensywnej terapii, w okresie okołooperacyjnym, a także u pacjentów wymagających suplementacji tlenem, przebywających na innych oddziałach szpitalnych. Do głównych metod monitorowania poziomu utlenowania krwi w organizmie należą oznaczanie gazometrii krwi tętniczej oraz pulsoksymetria. Nowym parametrem pozwalającym na monitorowanie gospodarki tlenowej jest indeks rezerwy tlenowej (ORi). ORi umożliwia łatwe, nieinwazyjne, przyłóżkowe monitorowanie poziomu rezerwy tlenowej organizmu. Indeks rezerwy tlenowej odzwierciedla wartości ciśnienia parcjalnego tlenu we krwi tętniczej (PaO 2 ) w zakresie 100-200 mm Hg. Pozwala on na wykrywanie łagodnej hiperoksji, co umożliwia bezpieczne stosowanie niższych stężeń tlenu w mieszaninie oddechowej. Jest również przydatnym narzędziem w przewidywaniu zagrażającej hipoksji. W artykule omówiono przydatność monitorowania indeksu rezerwy tlenowej w różnych sytuacjach klinicznych z codziennej praktyki anestezjologicznej.

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Section: Arterial Blood Gas Testmentioning

confidence: 99%

Usefulness of oxygen reserve index (ORi) in clinical practice

Barud

2023

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“…During thoracoscopic surgery, single-lung ventilation may lead to rapid changes in ABGA, which requires continuous blood gas analysis, and accurate ABGA values are important for the assessment of disease changes [ 12 ]. There are many factors affecting the results of ABGA, but the effect of discarding different volume samples in thoracoscopic surgery on the results remains unclear.…”

Section: Introductionmentioning

confidence: 99%

Analysis of arterial blood gas values when discarding different volumes of blood samples in an arterial heparin blood collector during thoracoscopic surgery

Xue,

Sun

2024

BMC Surg

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Background Arterial blood gas analysis (ABGA) plays a vital role in emergency and intensive care, which is affected by many factors, such as different instrumentation, temperature, and testing time. However, there are still no relevant reports on the difference in discarding different blood volumes on ABGA values. Methods We enrolled 54 patients who underwent thoracoscopic surgery and analysed differences in blood gas analysis results when different blood volumes were discarded from the front line of the arterial heparin blood collector. A paired t test was used to compare the results of the same patient with different volumes of blood discarded from the samples. The difference was corrected by Bonferroni correction. Results Our results demonstrated that the PaO2, PaCO2, and THbc were more stable in the 4th ml (PaO2 = 231.3600 ± 68.4878 mmHg, PaCO2 = 41.9232 ± 7.4490 mmHg) and 5th ml (PaO2 = 223.7600 ± 12.9895 mmHg, PaCO2 = 42.5679 ± 7.6410 mmHg) blood sample than in the 3rd ml (PaO2 = 234.1000 ± 99.7570 mmHg, PaCO2 = 40.6179 ± 7.2040 mmHg). Conclusion It may be more appropriate to discard the first 3 ml of blood sample in the analysis of blood gas results without wasting blood samples.

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“…For example, the measurement of arterial blood pH is one of the most frequently ordered tests in a critical care unit or in the process of some major surgeries. 1,2 There have been lots of efforts for developing a continuous arterial blood pH monitoring system using several different types of sensors, [3][4][5][6] such as metal/metal oxide electrodes, fiber-optic sensors, etc. However, these instruments have not been widely used in clinical practice due to their invasiveness and high cost.…”

Section: Introductionmentioning

confidence: 99%

An in vivo quantitative Raman-pH sensor of arterial blood based on laser trapping of erythrocytes

Lin

Yao

et al. 2016

Analyst

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We report on a continuous and non-invasive approach in vivo to monitor arterial blood pH based on the laser trapping and Raman detection of single live erythrocytes. A home-built confocal laser tweezers Raman system (LTRS) is applied to trace the live erythrocytes at different pH values of the extracellular environment to record their corresponding Raman changes in vitro and in vivo. The analysis results in vitro show that when the extracellular environment pH changes from 6.5 to 9.0, the Raman intensity ratio (R1603, 1616 = I1603/I1616) of single erythrocytes decrease regularly; what is more, there is a good linear relationship between these two variables, and the linearity is 0.985, which is also verified successfully via in vivo Raman measurements. These results demonstrate that the Raman signal of single live erythrocytes is possible as a marker of the extracellular pH value. This in vivo and quantitative Raman-pH sensor of arterial blood will be an important candidate for monitoring the acid-base status during the treatment of ill patients and in some major surgeries because of its continuous and non-invasive characters.

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How often should we perform arterial blood gas analysis during thoracoscopic surgery?

Cited by 12 publications

References 28 publications

Usefulness of oxygen reserve index (ORi) in clinical practice

Usefulness of oxygen reserve index (ORi) in clinical practice

Analysis of arterial blood gas values when discarding different volumes of blood samples in an arterial heparin blood collector during thoracoscopic surgery

An in vivo quantitative Raman-pH sensor of arterial blood based on laser trapping of erythrocytes

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