A new non-invasive index for the prediction of endotracheal intubation in patients with SARS COVID-19 infection, in the emergency department, pilot study

Abstract Background In the current context of the SARS COVID-19 pandemic, where the main cause of death is respiratory failure, and since early recognition would allow timely measures to be implemented and probably improve outcomes, it is important to have tools that allow the emergency room to pred...

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Main Authors: Germán Devia Jaramillo, Luis Carlos Venegas Sanabria, Carolina Buitrago
Format: Article
Language:English
Published: BMC 2023-04-01
Series:BMC Pulmonary Medicine
Subjects:
Online Access:https://doi.org/10.1186/s12890-023-02435-2
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author Germán Devia Jaramillo
Luis Carlos Venegas Sanabria
Carolina Buitrago
author_facet Germán Devia Jaramillo
Luis Carlos Venegas Sanabria
Carolina Buitrago
author_sort Germán Devia Jaramillo
collection DOAJ
description Abstract Background In the current context of the SARS COVID-19 pandemic, where the main cause of death is respiratory failure, and since early recognition would allow timely measures to be implemented and probably improve outcomes, it is important to have tools that allow the emergency room to predict quickly and without the use of large resources which will need invasive mechanical ventilation. This study proposes using a new predictive index of noninvasive characteristics, based on the relationship between oxygenation and work of breathing measured by ultrasound-assessed diaphragmatic function, for the need for invasive mechanical ventilation in patients with SARS-COV2 infection who are admitted to the emergency department. Methods A prospective predictive cohort study was performed, collecting all patients admitted to the emergency room with respiratory failure (not severe or in imminent respiratory arrest) and a confirmed diagnosis of SARS-CoV-2 pneumonia. Diaphragmatic excursion measurements were taken within the first 24 h after admission to the department. The relationship between diaphragmatic excursion and SAFI was calculated, establishing the ultrasound diaphragmatic excursion So2/FiO2 index (U.D.E.S.I). The index’s performance was determined by analysis of sensitivity, specificity, and area under the curve (AUC). Results This pilot study analyzed the first 100 patients enrolled and found in-hospital mortality of 19%, all patients who died required mechanical ventilation, the right index showed a specificity of 82.4% with a sensitivity of 76.9%, likewise for the left index an overall specificity of 90.5% with a sensitivity of 65.3% was found. The ideal cut-off point for the right index is 1.485, and for the left index, the threshold point was 1.856. AUC of the right index is 0.798 (0.676–0.920) and of the left index 0.793 (0.674–0.911), when comparing them no significant differences were found between these values p = 0.871. Conclusion The relationship of So2/FiO2 and diaphragm excursion measured by both right and left ultrasound could predict the need for mechanical ventilation of the patient with COVID-19 pneumonia in the emergency room and could constitute a valuable tool since it uses noninvasive parameters and is easily applicable at the patient’s bedside. However, a more extensive study is needed to validate these preliminary results.
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spelling doaj.art-58e9b378079e4d4ea0ab346ebdc68bb22023-04-23T11:08:09ZengBMCBMC Pulmonary Medicine1471-24662023-04-012311810.1186/s12890-023-02435-2A new non-invasive index for the prediction of endotracheal intubation in patients with SARS COVID-19 infection, in the emergency department, pilot studyGermán Devia Jaramillo0Luis Carlos Venegas Sanabria1Carolina Buitrago2Emergency Medicine, Hospital Universitario Mayor Méderi, School of Medicine and Health Sciences, Universidad del RosarioHospital Universitario Mayor MéderiSchool of Medicine and Health Sciences, Universidad del RosarioAbstract Background In the current context of the SARS COVID-19 pandemic, where the main cause of death is respiratory failure, and since early recognition would allow timely measures to be implemented and probably improve outcomes, it is important to have tools that allow the emergency room to predict quickly and without the use of large resources which will need invasive mechanical ventilation. This study proposes using a new predictive index of noninvasive characteristics, based on the relationship between oxygenation and work of breathing measured by ultrasound-assessed diaphragmatic function, for the need for invasive mechanical ventilation in patients with SARS-COV2 infection who are admitted to the emergency department. Methods A prospective predictive cohort study was performed, collecting all patients admitted to the emergency room with respiratory failure (not severe or in imminent respiratory arrest) and a confirmed diagnosis of SARS-CoV-2 pneumonia. Diaphragmatic excursion measurements were taken within the first 24 h after admission to the department. The relationship between diaphragmatic excursion and SAFI was calculated, establishing the ultrasound diaphragmatic excursion So2/FiO2 index (U.D.E.S.I). The index’s performance was determined by analysis of sensitivity, specificity, and area under the curve (AUC). Results This pilot study analyzed the first 100 patients enrolled and found in-hospital mortality of 19%, all patients who died required mechanical ventilation, the right index showed a specificity of 82.4% with a sensitivity of 76.9%, likewise for the left index an overall specificity of 90.5% with a sensitivity of 65.3% was found. The ideal cut-off point for the right index is 1.485, and for the left index, the threshold point was 1.856. AUC of the right index is 0.798 (0.676–0.920) and of the left index 0.793 (0.674–0.911), when comparing them no significant differences were found between these values p = 0.871. Conclusion The relationship of So2/FiO2 and diaphragm excursion measured by both right and left ultrasound could predict the need for mechanical ventilation of the patient with COVID-19 pneumonia in the emergency room and could constitute a valuable tool since it uses noninvasive parameters and is easily applicable at the patient’s bedside. However, a more extensive study is needed to validate these preliminary results.https://doi.org/10.1186/s12890-023-02435-2COVID-19POCUSEmergencyLung ultrasound
spellingShingle Germán Devia Jaramillo
Luis Carlos Venegas Sanabria
Carolina Buitrago
A new non-invasive index for the prediction of endotracheal intubation in patients with SARS COVID-19 infection, in the emergency department, pilot study
BMC Pulmonary Medicine
COVID-19
POCUS
Emergency
Lung ultrasound
title A new non-invasive index for the prediction of endotracheal intubation in patients with SARS COVID-19 infection, in the emergency department, pilot study
title_full A new non-invasive index for the prediction of endotracheal intubation in patients with SARS COVID-19 infection, in the emergency department, pilot study
title_fullStr A new non-invasive index for the prediction of endotracheal intubation in patients with SARS COVID-19 infection, in the emergency department, pilot study
title_full_unstemmed A new non-invasive index for the prediction of endotracheal intubation in patients with SARS COVID-19 infection, in the emergency department, pilot study
title_short A new non-invasive index for the prediction of endotracheal intubation in patients with SARS COVID-19 infection, in the emergency department, pilot study
title_sort new non invasive index for the prediction of endotracheal intubation in patients with sars covid 19 infection in the emergency department pilot study
topic COVID-19
POCUS
Emergency
Lung ultrasound
url https://doi.org/10.1186/s12890-023-02435-2
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