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Point of care diaphragm ultrasound in acute bronchiolitis: a measurable tool to predict the clinical, sonographic severity of the disease and outcomes
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  • Nihan Şık,
  • Hale Çitlenbik,
  • Ali Öztürk,
  • Durgül Yılmaz,
  • Murat Duman
Nihan Şık
Dokuz Eylul University Faculty of Medicine
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Hale Çitlenbik
Dokuz Eylul University Faculty of Medicine
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Ali Öztürk
Dokuz Eylul University Faculty of Medicine
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Durgül Yılmaz
Dokuz Eylul University Faculty of Medicine
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Murat Duman
Dokuz Eylul University Faculty of Medicine
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Abstract

Background: The aim of this study was to evaluate diaphragmatic parameters in bronchiolitis patients and identify correlations between clinical and sonographic severity scores and outcomes in order to develop a more objective and useful tool in the emergency department. Methods: Children aged between 1 and 24 months and diagnosed with acute bronchiolitis were included in the study. The Modified Respiratory Distress Assessment Instrument (mRDAI) score was used to quantify the clinical severity of the disease. Lung ultrasound was performed and a bronchiolitis ultrasound score (BUS) was calculated. Diaphragm ultrasound was then performed and diaphragm thickness at the end of inspiration and expiration, thickening fraction, diaphragm excursion (EXC), inspiratory slope (IS), expiratory slope (ES), and total duration time of the respiratory cycle were measured. Results: There were 104 patients evaluated in this study. The mRDAI score and BUS had a significant positive correlation. There was a positive correlation between IS and respiratory rate at admission. As the clinical score increased, IS, ES, and EXC measurements rose and they were positively correlated. Values of IS, ES, and EXC were higher in the moderate-severe group than the mild group for both mRDAI and BUS scores. Inspiratory slope values were correlated with the length of stay in the hospital. Conclusion: Values of IS and ES were correlated with clinical and sonographic severity scores. Moreover, IS was a good predictor of outcome. Diaphragm ultrasound appears to be an objective and useful tool to help the physician make decisions regarding the evaluation and management of bronchiolitis.

Peer review status:POSTED

14 Sep 2020Submitted to Pediatric Pulmonology
15 Sep 2020Assigned to Editor
15 Sep 2020Submission Checks Completed