AI Article Synopsis
- The study aimed to assess changes in oxygen levels in patients with severe respiratory failure during transport by a critical care team.
- Researchers reviewed 239 patient transports and found that while the ratio of oxygen in the blood to the oxygen being inhaled (Pao2/Fio2) and overall oxygen pressure (Pao2) improved significantly, the percentage of oxygen saturation (Spo2) remained relatively stable.
- Despite the positive changes in Pao2 and Pao2/Fio2, over 28% of patients experienced drops in oxygen saturation below 90% while being transported, indicating ongoing risks during transit.
Article Abstract
Objective: The purpose of this study is to measure the rate and magnitude of changes in oxygenation that occur in patients with hypoxemic respiratory failure after transport by a critical care transport team.
Methods: We performed a retrospective review of 239 transports of patients with hypoxemic respiratory failure requiring a fraction of inspired oxygen (Fio2) > 50% transported from October 2009 to December 2012 from referring hospitals to 3 tertiary care hospitals. We analyzed the change the ratio of the partial pressure of oxygen in the blood to FiO2 from the sending to the receiving hospital as well as the percentage saturation of oxygen (Spo2) before, after, and en route.
Results: The mean change in the Pao2/Fio2 ratio from the sending to the receiving hospital was an increase of 27.62 (95% confidence interval [CI], 15.84-39.40; P = .0003). The mean change in Pao2 was an increase of 27.85 mm Hg (CI, 17.49-38.22; P < .0001). The mean Spo2 was not significantly changed at -0.12 (CI, - 1.69 to 1.45, P = .9). Despite improvement in the Pao2/Fio2 ratio and a stable Spo2 on arrival, 28.1% of patients desaturated to Spo2 < 90% in transport.
Conclusion: In patients with hypoxemic respiratory failure, Pao2/Fio2 and Pao2 increased after transport by a critical care transport team despite 28.1% of patients desaturating with hypoxemia in transit.
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| http://dx.doi.org/10.1016/j.amj.2015.07.006 | DOI Listing |
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