Kyeongman Jeon, Soo Jin Na, Dong Kyu Oh, Sunghoon Park, Eun Young Choi, Seok Chan Kim, Gil Myeong Seong, Jeongwon Heo, Youjin Chang, Won Gun Kwack, Byung Ju Kang, Won-Il Choi, Kyung Chan Kim, So Young Park, Sang Hyun Kwak, Yoon Mi Shin, Heung Bum Lee, So Hee Park, Jae Hwa Cho, Beongki Kim, Chae‐Man Lim
Acute Crit Care. 2019;34(3):179-191. Published online July 1, 2019
Background Mortality rates associated with sepsis have increased progressively in Korea, but domestic epidemiologic data remain limited. The objective of this study was to investigate the characteristics, management and clinical outcomes of sepsis patients in Korea.
Methods This study is a multicenter retrospective cohort study. A total of 64,021 adult patients who visited an emergency department (ED) within one of the 19 participating hospitals during a 1-month period were screened for eligibility. Among these, patients diagnosed with sepsis based on the third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3) were included in the study.
Results Using the Sepsis-3 criteria, 977 sepsis patients were identified, among which 36.5% presented with septic shock. The respiratory system (61.8%) was the most common site of infection. The pathogen involved was identified in 444 patients (45.5%) and multi-drug resistance (MDR) pathogens were isolated in 171 patients. Empiric antibiotic therapy was appropriate in 68.6% of patients, but the appropriateness was significantly reduced in infections associated with MDR pathogens as compared with non-MDR pathogens (58.8% vs. 76.0%, P<0.001). Hospital mortality was 43.2% and 18.5% in sepsis patients with and without shock, respectively. Of the 703 patients who survived to discharge, 61.5% were discharged to home and 38.6% were transferred to other hospitals or facilities.
Conclusions This study found the prevalence of sepsis in adult patients visiting an ED in Korea was 1.5% (15.2/1,000 patients). Patients with sepsis, especially septic shock, had a high mortality and were often referred to step-down centers after acute and critical care.
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Background Injury severity scoring systems that quantify and predict trauma outcomes have not been established in Korea. This study was designed to determine the best system for use in the Korean trauma population.
Methods We collected and analyzed the data from trauma patients admitted to our institution from January 2010 to December 2014. Injury Severity Score (ISS), Revised Trauma Score (RTS), and Trauma and Injury Severity Score (TRISS) were calculated based on the data from the enrolled patients. Area under the receiver operating characteristic (ROC) curve (AUC) for the prediction ability of each scoring system was obtained, and a pairwise comparison of ROC curves was performed. Additionally, the cut-off values were estimated to predict mortality, and the corresponding accuracy, positive predictive value, and negative predictive value were obtained.
Results A total of 7,120 trauma patients (6,668 blunt and 452 penetrating injuries) were enrolled in this study. The AUCs of ISS, RTS, and TRISS were 0.866, 0.894, and 0.942, respectively, and the prediction ability of the TRISS was significantly better than the others (p < 0.001, respectively). The cut-off value of the TRISS was 0.9082, with a sensitivity of 81.9% and specificity of 92.0%; mortality was predicted with an accuracy of 91.2%; its positive predictive value was the highest at 46.8%.
Conclusions The results of our study were based on the data from one institution and suggest that the TRISS is the best prediction model of trauma outcomes in the current Korean population. Further study is needed with more data from multiple centers in Korea.
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Background The aim of this study is to evaluate the influence of immunosuppressants on in-hospital mortality from sepsis.
Methods Using data of the Health Insurance Review & Assessment Service, we collected data from patients who were admitted to the hospital due to sepsis from 2009 to 2013. Based on drugs commonly used for immunosuppression caused by various diseases, patients were divided into three groups; immunosuppressant group, steroid-only group, and control group. Patients with no history of immunosuppressants or steroids were assigned to the control group. To identify risk factors of in-hospital mortality in sepsis, we compared differences in patient characteristics, comorbidities, intensive care unit (ICU) care requirements, and immunodeficiency profiles. Subgroup analysis according to age was also performed.
Results Of the 185,671 included patients, 13,935 (7.5%) were in the steroid-only group and 2,771 patients (1.5%) were in the immunosuppressant group. The overall in-hospital mortality was 38.9% and showed an increasing trend with age. The steroid-only group showed the lowest in-hospital mortality among the three groups except the patients younger than 30 years. The steroid-only group and immunosuppressant group received ICU treatment more frequently (p < 0.001), stayed longer in the hospital (p < 0.001), and showed higher medical expenditure (p < 0.001) compared to the normal group. Univariate and multivariate analyses revealed that age, male gender, comorbidities (especially malignancy), and ICU treatment had a significant effect on in-hospital mortality.
Conclusions Despite longer hospital length of stay and more frequent need for ICU care, the in-hospital mortality was lower in patients taking immunosuppressive drugs than in patients not taking immunosuppressive drugs.
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BACKGROUND A hospital ethics committee (HEC) handles ethics problems in a hospital and mediates conflicts between patients and caregivers. The role of HEC on treatment withdrawal has increased after Boramae-hospital's case on 1997 in Korea. This study is an analysis of cases referred to the HEC of Asan Medical Center for the discontinuation of patient therapy. METHODS: The conference records of the HEC from January 1998 to December 2003 and the relevant patient charts were reviewed retrospectively. RESULTS: Twenty-seven cases related to treatment withdrawal were referred to the HEC during the study period. Based on the number of admitted ICU patients during the study period, the case request rate was 0.05%. The bimodal distribution of the cases in terms of age was neonate, 13 (48%); infant, 6 (22%); adult, 8 (30%).
The major causes of treatment withdrawal were futile management, financial difficulty and patient suffering. The HEC recommended the continuation of treatment in 7 cases (25.9%); treatment withdrawal in 11 (40.7%); treatment withholding in 8 (29.6%); transfer to another hospital in one case (3.8%). Of the seven recommendations for treatment continuation, only three were accepted by their families.
These three patients were eventually discharged alive.
Treatment was withdrawn within one week in all eleven cases recommended for that by the HEC. Treatment was withheld in seven of those eight such recommended cases. CONCLUSIONS: The case referral rate was low in the studied hospital. In all cases, the patients' families requested the case to the HEC. Although the committee's recommendations to withhold or withdraw the treatment were followed by the families, the recommendation to continue therapy was often refused.
BACKGROUND Not much of the fund is invested in the intensive care unit (ICU) in Korean hospitals since the cost of ICU care is set too low compared to the other medical fields as well as to the other part of the world. This study is designed to support the base of an ICU standard guideline in Korea. METHODS The questionnaire were sent to 73 ICUs and 24 neonatal ICUs (NICU) of 30 hospitals. Twenty-two of them were teaching hospitals and 8 of them were general hospitals. RESULTS The ratios of ICU bed number to total bed number were 5.0% and 6.0% in teaching hospital and general hospital respectively. The ratios of NICU bed to total bed were 3.4% and 2.0% in teaching hospital and general hospital respectively. Intensivists were kept in 24.6% of ICU and 36.4% of NICU. Residents were kept in 43.1% of ICU and 45.5% of NICU. The utilization of ICU service was 90% for teaching hospital and 86% for general hospital. The utilization of NICU was 89% for teaching hospital and 3% of general hospital. Nurse to patient ratios varied widely. Most ICUs in teaching hospital showed the nurse to patients ratio of 1 : 4 which was about 32% of total ICU. Most NICUs in teaching hospital showed the nurse to patients ratio of 1 : 5 which was around 20% of total NICU. Most of the ICUs were equipped with central piping system for oxygen and compressed air supply, vacuum system and all the necessary medical gadgets such as mechanical ventilators, ECG monitors, defibrillators, pulse oximeters and infusion pumps. CONCLUSIONS The distribution of medical personnel as well as medical equipments were varied widely. The variation existed between teaching hospital and general hospital as well as within the teaching hospitals. We need to establish a standard, which grades the level of ICU according to the number of keeping physician, nurse-patients ratio, and the types of medical equipments they have.