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Sun Hwa Lee 2 Articles
Neutrophil-to-lymphocyte Ratio as A Predictor of Aspiration Pneumonia in Drug Intoxication Patients
Jeong Beom Lee, Sun Hwa Lee, Seong Jong Yun, Seokyong Ryu, Seung Woon Choi, Hye Jin Kim, Tae Kyung Kang, Sung Chan Oh, Suk Jin Cho, Beom Sok Seo
J Korean Soc Clin Toxicol. 2018;16(2):61-67.   Published online December 31, 2018
DOI: https://doi.org/10.22537/jksct.2018.16.2.61
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Purpose: To evaluate the association between neutrophil-to-lymphocyte ratio (NLR) and occurrence of aspiration pneumonia in drug intoxication (DI) patients in the emergency department (ED) and to evaluate the relationship between NLR and length of hospital admission/intensive care unit (ICU) admission Methods: A total of 466 patients diagnosed with DI in the ED from January 2016 to December 2017 were included in the analysis. The clinical and laboratory results, including NLR, were evaluated as variables. NLR was calculated as the absolute neutrophil count/absolute lymphocyte count. To evaluate the prognosis of DI, data on the development of aspiration pneumonia were obtained. Also, we evaluated the relationship between NLR and length of hospital admission and between NLR and length of ICU admission. Statistically, multivariate logistic regression analyses, receiver-operating characteristic (ROC) curve analysis, and Pearson's correlation (${ ho}$) were performed. Results: Among the 466 DI patients, 86 (18.5%) developed aspiration pneumonia. Multivariate logistic regression analysis revealed NLR as an independent factor in predicting aspiration pneumonia (odds ratio, 1.7; p=0.001). NLR showed excellent predictive performance for aspiration pneumonia (areas under the ROC curves, 0.815; cut-off value, 3.47; p<0.001) with a sensitivity of 86.0% and a specificity of 72.6%. No correlations between NLR and length of hospital admission (${ ho}=0.195$) and between NLR and length of ICU admission (${ ho}=0.092$) were observed. Conclusion: The NLR is a simple and effective marker for predicting the occurrence of aspiration pneumonia in DI patients. Emergency physicians should be alert for aspiration pneumonia in DI patients with high NLR value (>3.47).
Administration and Efficiency Comparison of Chloral Hydrate during Pediatric Sedation
Jung Ah Bae, Yoon Hee Choi, Ah Jin Kim, Sun Hwa Lee
J Korean Soc Clin Toxicol. 2016;14(1):9-15.   Published online June 30, 2016
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Purpose: In most emergency department (ED), sedation is required before carrying out an invasive procedure on a pediatric patient. In the ED setting, it is essential to determine the optimal dose and administration route of CH for successful sedation. The aim of this study was to determine the optimal dose of CH for an invasive procedure and to examine the effectiveness of the drug's different administration routes. Furthermore, in this study, we performed simple survey using questionnaire which composed of Likert-scale to evaluate satisfaction of medical staffs in ED with administration routes. Methods: This study was conducted prospectively. The study participants were pediatric patients under 8 years old who visited the ED in two tertiary hospitals in South Korea within a period of 12 months. Results: Overall, 300 patients were included in this study. The age, sex, and weight of the patients were not shown to influence the sedation time. Chloral hydrate dosage is the independent factor to influence the both sedation and discharge time (p<0.01). In the comparison of the groups, groups 1, 2, and 5 showed no significant difference. On the other hand, groups 3 and 4 were shown to be statistically significantly different from group 1. Conclusion: Up to 100 mg/kg CH is safe to use in the emergency department for pediatric patients, but the initial dose of 50 mg/kg for oral administration should be considered in advance because it can provide safe and effective sedation with a lower possibility of causing an adverse effect.

JKSCT : Journal of The Korean Society of Clinical Toxicology