R Abhiraj, Meera Ekka, Aravind Sreekumar, Praveen Aggarwal, Nayer Jamshed, Sanjeev Kumar Bhoi, Maroof Ahmed Khan
{"title":"急诊科监测潮末二氧化碳对预测非创伤性休克患者住院死亡率的效用:一项前瞻性观察研究。","authors":"R Abhiraj, Meera Ekka, Aravind Sreekumar, Praveen Aggarwal, Nayer Jamshed, Sanjeev Kumar Bhoi, Maroof Ahmed Khan","doi":"10.4103/tjem.tjem_223_24","DOIUrl":null,"url":null,"abstract":"<p><strong>Objectives: </strong>We aimed to identify the ability of end-tidal carbon dioxide (EtCO2) to predict inhospital mortality of patients presenting to the emergency department (ED) with nontraumatic circulatory shock. We also attempted to assess the correlation between EtCO2 and other traditional vital signs and laboratory parameters in this patient population at different time points during their resuscitation.</p><p><strong>Methods: </strong>This was a single-center prospective observational study conducted among patients with nontraumatic circulatory shock who presented to the ED of a tertiary care teaching institute in India. EtCO2 measurement was done using mainstream capnography in both intubated and nonintubated patients at presentation and at 120 min of resuscitation. Heart rate, systolic blood pressure, diastolic blood pressure, mean arterial pressure (MAP), respiratory rate, oxygen saturation, and laboratory parameters (lactate, base deficit [BD], and partial pressure of carbon dioxide) were measured at the same time points. All patients were followed up till hospital discharge.</p><p><strong>Results: </strong>One hundred and ten patients were recruited to the study. An EtCO2 of ≤ 23 mm Hg at presentation was 87% sensitive (95% CI: 73-95 %) and 43% specific (95% CI: 31-56 %) in predicting in-hospital mortality of patients presenting with no-traumatic circulatory shock in emergency department [area under curve (AUC): 0.735 (95% CI: 0.638-0.832, p<0.001)]. EtCO2 ≥23 mmHg at presentation had a significant predictive value on the risk of in-hospital mortality with an adjusted odd's ratio of 0.08 (95% CI: 0.02-0.3, <i>P</i> < 0.001). EtCO2 values at presentation and 120 min as well as the change between the time points showed statistically significant weak-to-moderate positive correlations with corresponding values of MAP and BD. Similarly, a significant negative correlation was demonstrated with lactate levels at the same time points.</p><p><strong>Conclusion: </strong>EtCO2 values at presentation are an independent predictor of inhospital mortality of patients with circulatory shock of nontraumatic etiology presenting to the ED.</p>","PeriodicalId":46536,"journal":{"name":"Turkish Journal of Emergency Medicine","volume":"25 3","pages":"199-207"},"PeriodicalIF":2.3000,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12309820/pdf/","citationCount":"0","resultStr":"{\"title\":\"The utility of monitoring end-tidal carbon dioxide in emergency department to predict inhospital mortality of patients presenting with nontraumatic shock: A prospective observational study.\",\"authors\":\"R Abhiraj, Meera Ekka, Aravind Sreekumar, Praveen Aggarwal, Nayer Jamshed, Sanjeev Kumar Bhoi, Maroof Ahmed Khan\",\"doi\":\"10.4103/tjem.tjem_223_24\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Objectives: </strong>We aimed to identify the ability of end-tidal carbon dioxide (EtCO2) to predict inhospital mortality of patients presenting to the emergency department (ED) with nontraumatic circulatory shock. We also attempted to assess the correlation between EtCO2 and other traditional vital signs and laboratory parameters in this patient population at different time points during their resuscitation.</p><p><strong>Methods: </strong>This was a single-center prospective observational study conducted among patients with nontraumatic circulatory shock who presented to the ED of a tertiary care teaching institute in India. EtCO2 measurement was done using mainstream capnography in both intubated and nonintubated patients at presentation and at 120 min of resuscitation. Heart rate, systolic blood pressure, diastolic blood pressure, mean arterial pressure (MAP), respiratory rate, oxygen saturation, and laboratory parameters (lactate, base deficit [BD], and partial pressure of carbon dioxide) were measured at the same time points. All patients were followed up till hospital discharge.</p><p><strong>Results: </strong>One hundred and ten patients were recruited to the study. An EtCO2 of ≤ 23 mm Hg at presentation was 87% sensitive (95% CI: 73-95 %) and 43% specific (95% CI: 31-56 %) in predicting in-hospital mortality of patients presenting with no-traumatic circulatory shock in emergency department [area under curve (AUC): 0.735 (95% CI: 0.638-0.832, p<0.001)]. EtCO2 ≥23 mmHg at presentation had a significant predictive value on the risk of in-hospital mortality with an adjusted odd's ratio of 0.08 (95% CI: 0.02-0.3, <i>P</i> < 0.001). EtCO2 values at presentation and 120 min as well as the change between the time points showed statistically significant weak-to-moderate positive correlations with corresponding values of MAP and BD. Similarly, a significant negative correlation was demonstrated with lactate levels at the same time points.</p><p><strong>Conclusion: </strong>EtCO2 values at presentation are an independent predictor of inhospital mortality of patients with circulatory shock of nontraumatic etiology presenting to the ED.</p>\",\"PeriodicalId\":46536,\"journal\":{\"name\":\"Turkish Journal of Emergency Medicine\",\"volume\":\"25 3\",\"pages\":\"199-207\"},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2025-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12309820/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Turkish Journal of Emergency Medicine\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4103/tjem.tjem_223_24\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"EMERGENCY MEDICINE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Turkish Journal of Emergency Medicine","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4103/tjem.tjem_223_24","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"EMERGENCY MEDICINE","Score":null,"Total":0}
The utility of monitoring end-tidal carbon dioxide in emergency department to predict inhospital mortality of patients presenting with nontraumatic shock: A prospective observational study.
Objectives: We aimed to identify the ability of end-tidal carbon dioxide (EtCO2) to predict inhospital mortality of patients presenting to the emergency department (ED) with nontraumatic circulatory shock. We also attempted to assess the correlation between EtCO2 and other traditional vital signs and laboratory parameters in this patient population at different time points during their resuscitation.
Methods: This was a single-center prospective observational study conducted among patients with nontraumatic circulatory shock who presented to the ED of a tertiary care teaching institute in India. EtCO2 measurement was done using mainstream capnography in both intubated and nonintubated patients at presentation and at 120 min of resuscitation. Heart rate, systolic blood pressure, diastolic blood pressure, mean arterial pressure (MAP), respiratory rate, oxygen saturation, and laboratory parameters (lactate, base deficit [BD], and partial pressure of carbon dioxide) were measured at the same time points. All patients were followed up till hospital discharge.
Results: One hundred and ten patients were recruited to the study. An EtCO2 of ≤ 23 mm Hg at presentation was 87% sensitive (95% CI: 73-95 %) and 43% specific (95% CI: 31-56 %) in predicting in-hospital mortality of patients presenting with no-traumatic circulatory shock in emergency department [area under curve (AUC): 0.735 (95% CI: 0.638-0.832, p<0.001)]. EtCO2 ≥23 mmHg at presentation had a significant predictive value on the risk of in-hospital mortality with an adjusted odd's ratio of 0.08 (95% CI: 0.02-0.3, P < 0.001). EtCO2 values at presentation and 120 min as well as the change between the time points showed statistically significant weak-to-moderate positive correlations with corresponding values of MAP and BD. Similarly, a significant negative correlation was demonstrated with lactate levels at the same time points.
Conclusion: EtCO2 values at presentation are an independent predictor of inhospital mortality of patients with circulatory shock of nontraumatic etiology presenting to the ED.
期刊介绍:
The Turkish Journal of Emergency Medicine (Turk J Emerg Med) is an International, peer-reviewed, open-access journal that publishes clinical and experimental trials, case reports, invited reviews, case images, letters to the Editor, and interesting research conducted in all fields of Emergency Medicine. The Journal is the official scientific publication of the Emergency Medicine Association of Turkey (EMAT) and is printed four times a year, in January, April, July and October. The language of the journal is English. The Journal is based on independent and unbiased double-blinded peer-reviewed principles. Only unpublished papers that are not under review for publication elsewhere can be submitted. The authors are responsible for the scientific content of the material to be published. The Turkish Journal of Emergency Medicine reserves the right to request any research materials on which the paper is based. The Editorial Board of the Turkish Journal of Emergency Medicine and the Publisher adheres to the principles of the International Council of Medical Journal Editors, the World Association of Medical Editors, the Council of Science Editors, the Committee on Publication Ethics, the US National Library of Medicine, the US Office of Research Integrity, the European Association of Science Editors, and the International Society of Managing and Technical Editors.