• 1. Intensive care medicine Department, West China Hospital of Sichuan UNIPPVersity, Chengdu, Sichuan 610041, P. R. China;
  • 2. Intensive care medicine Department, Dazhou Central Hospital, Dazhou, Sichuan 635000, P. R. China;
KANG Yan, Email: kangyan@scu.edu.cn
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Objective To observe the predictive value of Volume OXygeneration (VOX) index for early non-invasive positive pressure ventilation (NIPPV) treatment in patients with type I Respiratory failure. Methods Retrospective analysis was made on the patients with type I Respiratory failure admitted to the intensive care medicine from September 2019 to September 2022, who received early NIPPV treatment. After screening according to the discharge standard, they were grouped according to the NIPPV 2-hour VOX index. The observation group was VOX Youden index >20.95 (n=69), and the control group was VOX index ≤20.95 (n=64). Collect patient baseline data and NIPPV 2-hour, 12-hour, and 24-hour arterial blood gas values, and calculate NIPPV outcomes, intubation status, NIPPV usage time, hospital stay, and mortality rate. Results There was a statistically significant difference in respiratory rate (RR) between the baseline data onto the two groups of patients, but others not. After early NIPPV treatment, the 2-hour oxygenation index (P/F) [(182.5 ± 66.14) vs. (144.1 ± 63.6) mm Hg, P<0.05] of the observation group showed a more significant increase. The failure rate of NIPPV intubation within 12 hours was lower (4.35% vs. 32.81%, P<0.05), the success rate of NIPPV withdrawal from 24 hours was higher (40.58% vs. 0%, P<0.05), and the failure rate of NIPPV intubation was lower (4.35% vs. 46.88%, P<0.05). The comparison of treatment outcomes showed that the intubation rates in the observation group (4.35% vs. 67.19%, P<0.05) was lower. The threshold of NIPPV 2-hour VOX index 20.95 was used as a predictor of Tracheal intubation, with sensitivity of 74.7% and specificity of 93.5%. Conclusion In the early NIPPV treatment of patients with type I Respiratory failure, the NIPPV 2-hour VOX index>20.91 is taken as the evaluation index, which can better to predict the improvement in hypoxia and the risk of NIPPV failure Tracheal intubation, and has clinical significance.

Citation: LIU Xiaoyi, RAN Hui, CHEN Lili, ZHOU Yongfang, KANG Yan. Retrospective studies of volume-OXygeneration index in predicting the effect of early non-invasive positive pressure ventilation in patients with type I Respiratory failure. Chinese Journal of Respiratory and Critical Care Medicine, 2024, 23(2): 110-116. doi: 10.7507/1671-6205.202310040 Copy

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