Correlation Between Obesity and Oxygen Reserve during Induction of General Anesthsia

Yun ZHOU; Liu YANG; Xue-qing NA

doi:10.12259/j.issn.2095-610X.S20201130

Volume 41 Issue 11

Dec. 2020

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Yun ZHOU, Liu YANG, Xue-qing NA. Correlation Between Obesity and Oxygen Reserve during Induction of General Anesthsia[J]. Journal of Kunming Medical University, 2020, 41(11): 150-153. doi: 10.12259/j.issn.2095-610X.S20201130

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Yun ZHOU, Liu YANG, Xue-qing NA. Correlation Between Obesity and Oxygen Reserve during Induction of General Anesthsia[J]. Journal of Kunming Medical University, 2020, 41(11): 150-153. doi: 10.12259/j.issn.2095-610X.S20201130

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Correlation Between Obesity and Oxygen Reserve during Induction of General Anesthsia

doi: 10.12259/j.issn.2095-610X.S20201130

Dept.of Anesthesiology，The 2nd Affiliated Hospital of Kunming Medical University，Kunming Yunnan 650101，China

Received Date: 2020-10-12
Available Online: 2020-12-03
Publish Date: 2020-11-25

Abstract

Abstract

Objective To study the duration of anoxia tolerance in patients with different weight, so as to discuss obese patients with oxygen reserve capacity. Methods Twenty-two aldut patients undergoing elective surgery, ASAⅠ～Ⅱ, aged 20～50, were divided into 3 groups according to Body Mass Index （BMI = High/Weight2）: group A （BMI≤25 kg/m²）, group B （BMI25～29.9 kg/m²） and group C （BMI≥30 kg/m²）. Each patients received routine induction, while respiratory arrest control ventilation （VT: 8 mL/kg, R: 12次/min, PEEP: 5 cm H₂O）. Glidescope to trachea intubation in two minutes, fiber bronchoscope to ensure the position of the endotracheal tube without error quickly and fix the endotracheal tube. No patients were not ventilated until SpO₂ decreased to 93%. Baseline BMI, HR, blood pressure, SpO₂, the duration of SpO₂ fell from 100% to 97% and 93% （T97, T93）. Results There were statistically significant differences in the airless safety time T97, T93 between the three groups of patients. BMI and T97 and T93 had negative correlation with BMI. Conclusion With the increase of BMI in twenty-two patients, the airless safety time will be shortened significantly.
- Obesity,
- Oxygen reserve,
- Induction of general anesthsia

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References(10)

References

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