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Changes in arterial blood gas analysis results according to body mass index in patients with acute dyspnea admitted through emergency department, and usefulness for predicting prognosis
À̱ÙÅÃ, ¼º¿ø¿µ, ÀÌÀ念, ÀÌ¿ø¼®, ¼»ó¿ø,
¼Ò¼Ó »ó¼¼Á¤º¸
À̱ÙÅà ( Lee Keun-Taek )
À»Áö´ëÇб³ ÀÇ°ú´ëÇÐ ÀÀ±ÞÀÇÇб³½Ç
¼º¿ø¿µ ( Sung Won-Young )
À»Áö´ëÇб³ ÀÇ°ú´ëÇÐ ÀÀ±ÞÀÇÇб³½Ç
ÀÌÀ念 ( Lee Jang-Young )
À»Áö´ëÇб³ ÀÇ°ú´ëÇÐ ÀÀ±ÞÀÇÇб³½Ç
ÀÌ¿ø¼® ( Lee Won-Suk )
À»Áö´ëÇб³ ÀÇ°ú´ëÇÐ ÀÀ±ÞÀÇÇб³½Ç
¼»ó¿ø ( Seo Sang-Won )
À»Áö´ëÇб³ ÀÇ°ú´ëÇÐ ÀÀ±ÞÀÇÇб³½Ç
KMID : 0385920190300060545
Abstract
Objective: This study examined the change tendency in the arterial blood gas analysis (ABGA) results according to the body mass index (BMI) of patients admitted through the emergency department (ED) with dyspnea, as well as the risk factors for intensive care unit (ICU) admission and in-hospital mortality in obese patients.
Method: A retrospective study was conducted on 768 patients, who were admitted to the ED for dyspnea during 2017 and underwent ABGA. The patients were divided into four groups according to their BMI. Multivariate logistic regression analysis was used to determine the risk factors of ICU admission and in-hospital mortality in obese patients using the ABGA results.
Results: A higher BMI was associated with a lower pH (P<0.001) and higher arterial carbon dioxide pressure (PaCO2, P=0.001), hematocrit (P=0.009), and lactate concentration (P=0.012). In the obese group, low pH (odds ratio [OR], 5.780; P<0.001 and OR, 16.393; P=0.013), high PaCO2 (OR, 1.123; P=0.005), high lactate concentration (OR, 1.886; P=0.015), and base excess reduction (OR, 1.267; P=0.001) were the risk factors for ICU admission, whereas pH<7.33 (OR, 14.493; P=0.014) and high lactate concentration (OR, 1.462; P=0.008) were the risk factors for in-hospital mortality. The pH (area under the curve [AUC], 0.817; AUC, 0.890) and lactate concentration (AUC, 0.762; AUC, 0.728) were useful for predicting the ICU admission and in-hospital mortality.
Conclusion: A higher BMI in the subjects was associated with a lower pH and higher lactate concentration. In addition, pH and lactate concentration were significant risk factors for ICU admission and in-hospital mortality.
Å°¿öµå
Dyspnea; Blood gas analysis; Body mass index; Emergency department
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