Application of pulmonary ultrasound in evaluating pulmonary ventilation in patients with severe pulmonary infection(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2022年第3期
- Page:
- 317-320
- Research Field:
- 医学影像物理
- Publishing date:
Info
- Title:
- Application of pulmonary ultrasound in evaluating pulmonary ventilation in patients with severe pulmonary infection
- Author(s):
- YANG Chaosheng; DENG Yuguang; CHEN Hui; ZHONG Jiajiang
- Department of Respiratory and Critical Care Medicine, Liuzhou Peoples Hospital, Liuzhou 545000, China
- Keywords:
- Keywords: pulmonary ultrasound severe pulmonary infection pulmonary ventilation predictive value
- PACS:
- R563
- DOI:
- DOI:10.3969/j.issn.1005-202X.2022.03.010
- Abstract:
-
Abstract: Objective To explore the value of pulmonary ultrasound in evaluating ventilation in patients with severe pulmonary infection. Methods The pulmonary ultrasonic signs of 88 patients with severe pulmonary infection were scored by semiquantitative method, and the CT results were taken as the gold standard to explore the relationship between pulmonary ultrasound score and pulmonary ventilation. Meanwhile, the differences between survivors and dead patients in clinical data and pulmonary ultrasound score were analyzed, and the value of pulmonary ultrasound score in predicting death was assessed. Results The average pulmonary ultrasound score of 88 patients was 18.50±2.12, and their average lung CT value was (-620.50±88.13) HU. Moreover, the average proportions of no ventilation/hypoventilation, normal ventilation and hyperventilation lung tissues in the 88 patients were (10.41±3.35)%, (71.54±6.69)% and (17.65±4.11)%, respectively. The pulmonary ultrasound score was positively correlated with the whole lung CT value and the proportion of no ventilate/hypoventilation lung tissues (r=0.775, 0.648 P<0.05), but had no significant correlation with the proportions of normal ventilation lung tissues and hyperventilation lung tissues (r=-0.170, 0.046 P>0.05). In death group, the age, diabetes rate, APACHE Ⅱ score, alveolar-arterial partial oxygen pressure, percentage of mechanical ventilation and pulmonary ultrasound score were (59.28±8.12) years old, 44.83%, 22.19±2.40, (344.40±82.29) mmHg, 72.41% and 20.20±1.72, respectively, which were significantly higher than those of survival group (P<0.05), but the oxygenation index was 104.42±21.18, significantly lower than that of survival group (P<0.05). The results of Logistic regression analysis revealed that age, APACHE Ⅱ and pulmonary ultrasound score were the influential factors of death in patients with severe pulmonary infection (OR=1.758, 2.841, 2.440 P<0.05). The area under the ROC curve of pulmonary ultrasound score for predicting death of patients with severe pulmonary infection was 0.901 (95%CI: 0.866-0.966), and the cut-off value was 20, and the sensitivity and specificity were 82.80% and 84.70%, respectively. Conclusion Pulmonary ultrasound can be used as an evaluation index of pulmonary ventilation in patients with severe pulmonary infection, and it has certain application value in predicting patient prognosis.
Last Update: 2022-03-28