Journal of Yeungnam Medical Science

Original Articles

Comparisons of Gas Analysis in Arterial, Venous and Warmed Venous Blood During Inhalation General Anesthesia: Heung Dae Kim; Yeungnam Univ J Med. 2007;24(2 Suppl):S519-526. Published online December 31, 2007; DOI: https://doi.org/10.12701/yujm.2007.24.2S.S519

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Abstract PDF: Background
：We determine whether venous blood, when sampled under carefully controlled conditions, was an acceptable alternative to arterial blood for the measurement of arterial blood gas analysis during inhalation general anesthesia. Materials and Methods：The arterial blood values of the carbon dioxide tension (PCO₂), pH, base excess (BE), oxygen tension (PO₂) and oxygen saturation (SO₂) were compared with the values of venous blood drawn from the cephalic vein as non controlled routine method and as localized warmed method during inhalation general anesthesia with sevoflurane and N₂O (50%) in 20 cases.
Results
：The blood gas analysis values of non controlled cephalic venous blood were close to those of arterial blood. They was similar between the PCO₂ (42.5 ± 0.97 vs. 38.7 ± 0.92 mmHg), pH (7.35 ± 0.01 vs. 7.39 ± 0.01) and BE (-3.13 ± 0.62 vs. -0.18 ± 0.13 mEq/l) of non controlled cephalic venous and of arterial blood. Although the PO₂ in non controlled cephalic venous blood was significantly less than that in arterial blood(130.8 ± 8.1 vs. 245.3 ± 6.8 mmHg), the difference in SO₂ was small(98.9 ± 2.1 vs. 99.7 ± 0.4%). The blood gas values of warmed cephalic venous blood were more similar to those of arterial blood (PCO₂, 41.2 ± 0.91 vs. 38.7 ± 0.92 mmHg; pH, 7.37 ± 0.01 vs. 7.39 ± 0.01; BE, -2.30 ± 0.62 vs. -0.18 ± 0.13 mEq/l; PO₂, 157.3 ± 11.4 vs. 245.3 ± 6.8 mmHg; SO₂, 99.2 ± 1.3 vs. 99.7 ± 0.4%) than to those of non controlled cephalic venous blood.
Conclusion
：We found that warmed cephalic venous blood during inhalation general anesthesia can be arterialized and PCO₂, pH, BE and SO₂ of warmed cephalic venous blood were not significantly different to those of arterial blood. Therefore we conclude that it is reliable to use localized warmed cephalic venous blood for the measurement of arterial blood gas analysis during inhalation general anesthesia.

A clinical study of acute carbon monoxide intoxication.: Kyong Chan Choi, Mee Yeung Park, Jung Sang Hah, Yeung Ju Byun, Choong Suh Park; Yeungnam Univ J Med. 1991;8(1):86-97. Published online June 30, 1991; DOI: https://doi.org/10.12701/yujm.1991.8.1.86

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Abstract PDF: To obtain the basic data of prognosis of acute carbon monoxide (CO) intoxication, one hundred and sixteen cases of CO intoxication defined by carboxyhemoglobin (COHb) and admitted via emergency room of Yeungnam University Hospital from Oct. '85 to April' 89 have been clinically analyzed and evaluated, including delayed postanoxic encephalopathy (DPE) and the following results were obtained. 1. The ratio of male to female was 1:1.5 and mental state was drowsy mostly (26.2% of 116 cases) 2. The more disturbed the mental state, the more decreased was the arterial pH and PaCO₂, which may be the result of metabolic acidosis. 3. The early laboratory findings in patients of CO intoxication were as follows: leukocytosis-65.5%, increase of hematocrit-23.3%, hyperglycemia-19.8%, increase of GPT-19.8% increase of creatinine-0.9% and glucosuria-12.1%. 4. The early findings of EKG were abnormal in 35.3%: change of rhythm-25.0%, abnormal ST segment 15.5% (change of rhythm and abnormal ST segment-5.2%) but the conduction disorder was not present. 5. The abnormal EEG above mild degree was 93.1%, of which moderate was most frequent (80.2%). 6. The incidence of DPE was 7.8% among all admitted CO patients. DPE cases had long duration of exposure time (8 hours), severe leukocytosis (20,000) and an abnormal EEG (MA).

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