Evaluation of the predictors and frequency of silent hypoxemia in COVID‐19 patients and the gap between pulse oximeter and arterial blood gas levels:A cross‐sectional study  

作　　者：Mohammad Javad Fallahi Fatemehsadat Pezeshkian Keivan Ranjbar Rojan Javaheri Reza Shahriarirad 

机构地区：[1]Department of Internal Medicine,Shiraz University of Medical Sciences,Shiraz,Iran [2]Thoracic and Vascular Surgery Research Center,Shiraz University of Medical Science,Shiraz,Iran [3]Student Research Committee,Shiraz University of Medical Sciences,Shiraz,Iran [4]School of Medicine,Shiraz University of Medical Sciences,Shiraz,Iran

出　　处：《Health Care Science》2024年第3期172-180,共9页科学医疗（英文）

摘　　要：Background:Silent hypoxemia is when patients do not experience breathing difficulty in the presence of alarmingly low O2 saturation.It could cause rapid deterioration and higher mortality rates among patients,so prompt detection and identifying predictive factors could result in significantly better outcomes.This study aims to document the evidence of silent hypoxemia in patients with COVID‐19 and its clinical features.Methods:A total of 78 hospitalized,nonintubated patients with confirmed COVID‐19 infection were included in this study.Their O2 saturation was measured with a pulse oximeter(PO),and arterial blood gas(ABG)was taken.Demographic and clinical features were recorded.The Borg scale was used to evaluate dyspnea status,and patients with a score of less than two accompanied by O2 saturation of less than 94%were labeled as silent hypoxic.Univariate analysis was utilized to evaluate the correlation between variables and their odds ratio(OR)and 95%confidence interval(CI).Results:Silent hypoxemia was observed in 20(25.6%)of the participants.The average difference between the PO and ABG methods was 4.36±3.43.Based on regression analysis,dyspnea and respiratory rate demonstrated a statistically significant correlation with the O2 saturation difference between PO and ABG(OR:2.05;p=0.026;95%CI:0.248–3.847 and OR:0.144;p=0.048,95%CI:0.001–0.286).Furthermore,the Borg scale(OR:0.29;p=0.009;95%CI:0.116–0.740)had a significant reverse correlation with silent hypoxia.Conclusions:Silent hypoxemia can be a possible complication that affects some COVID‐19 patients.Further care should be bestowed upon the younger population and those with underlying neurological or mental illnesses.Furthermore,the respiratory rate,pulse oximeter,and arterial blood gas O2 levels should be considered alongside each other.

关 键 词：COVID‐19 HYPOXIA DYSPNEA OXIMETRY Saturation 

分 类 号：R73[医药卫生—肿瘤]