Acute and Critical Care

Hyuk Jun Yang

6 Articles

Neurology/Emergency
Prognostic Value and Optimal Sampling Time of S-100B Protein for Outcome Prediction in Cardiac Arrest Patients Treated with Therapeutic Hypothermia: Hyung Seok Kim, Ho Sung Jung, Yong Su Lim, Jae Hyug Woo, Jae Ho Jang, Jee Yong Jang, Hyuk Jun Yang; Korean J Crit Care Med. 2014;29(4):304-312. Published online November 30, 2014; DOI: https://doi.org/10.4266/kjccm.2014.29.4.304

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BACKGROUND
The aim of this study was to determine the prognostic value and optimal sampling time of serum S-100B protein for the prediction of poor neurological outcomes in post-cardiac arrest (CA) patients treated with therapeutic hypothermia (TH).
METHODS
We prospectively measured serum S100 calcium binding protein beta subunit (S-100B protein) levels 12 times (0-96 hours) after the return of spontaneous circulation (ROSC). The patients were classified into two groups based on cerebral performance category (CPC): the good neurological outcome group (CPC 1-2 at 6 months) and the poor neurological outcome group (CPC 3-5). We compared serial changes and serum S-100B protein levels at each time point between the two groups and performed receiver operating characteristic curve analysis for the prediction of poor neurological outcomes.
RESULTS
A total of 40 patients were enrolled in the study. S-100B protein levels peaked at ROSC (0 hour), decreased rapidly to 6 hours and maintained a similar level thereafter. Serum S-100B protein levels in the poor CPC group (n = 22) were significantly higher than in the good CPC group (n = 18) at all time points after ROSC except at 4 hours. The time points with highest area under curve were 24 (0.829) and 36 (0.837) hours. The cut-off value, the sensitivity (24/36 hours) and specificity (24/36 hours) for the prediction of poor CPC at 24 and 48 hours were 0.221/0.249 ug/L, 75/65% and 82.4/94.1%, respectively.
CONCLUSIONS
Serum S-100B protein was an early and useful marker for the prediction of poor neurological outcomes in post-CA patients treated with TH and the optimal sampling times were 24 and 36 hours after ROSC.

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The first national survey on practices of neurological prognostication after cardiac arrest in China, still a lot to do
Lanfang Du, Kang Zheng, Lu Feng, Yu Cao, Zhendong Niu, Zhenju Song, Zhi Liu, Xiaowei Liu, Xudong Xiang, Qidi Zhou, Hui Xiong, Fengying Chen, Guoqiang Zhang, Qingbian Ma
International Journal of Clinical Practice.2021;[Epub] CrossRef
Management of post-cardiac arrest syndrome
Youngjoon Kang
Acute and Critical Care.2019; 34(3): 173. CrossRef

Neurology/Emergency
Acute Physiologic and Chronic Health Examination II and Sequential Organ Failure Assessment Scores for Predicting Outcomes of Out-of-Hospital Cardiac Arrest Patients Treated with Therapeutic Hypothermia: Sung Joon Kim, Yong Su Lim, Jin Seong Cho, Jin Joo Kim, Won Bin Park, Hyuk Jun Yang; Korean J Crit Care Med. 2014;29(4):288-296. Published online November 30, 2014; DOI: https://doi.org/10.4266/kjccm.2014.29.4.288

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Abstract PDF

BACKGROUND
The aim of this study was to assess the relationship between acute physiologic and chronic health examination (APACHE) II and sequential organ failure assessment (SOFA) scores and outcomes of post-cardiac arrest patients treated with therapeutic hypothermia (TH).
METHODS
Out-of-hospital cardiac arrest (OHCA) survivors treated with TH between January 2010 and December 2012 were retrospectively evaluated. We captured all components of the APACHE II and SOFA scores over the first 48 hours after intensive care unit (ICU) admission (0 h). The primary outcome measure was in-hospital mortality and the secondary outcome measure was neurologic outcomes at the time of hospital discharge. Receiver-operating characteristic and logistic regression analysis were used to determine the predictability of outcomes with serial APACHE II and SOFA scores.
RESULTS
A total of 138 patients were enrolled in this study. The area under the curve (AUC) for APACHE II scores at 0 h for predicting in-hospital mortality and poor neurologic outcomes (cerebral performance category: 3-5) was more than 0.7, and for SOFA scores from 0 h to 48 h the AUC was less than 0.7. Odds ratios used to determine associations between APACHE II scores from 0 h to 48 h and in-hospital mortality were 1.12 (95% confidence interval [CI], 1.03-1.23), 1.13 (95% CI, 1.04-1.23), and 1.18 (95% CI, 1.07-1.30).
CONCLUSIONS
APACHE II, but not SOFA score, at the time of ICU admission is a modest predictor of in-hospital mortality and poor neurologic outcomes at the time of hospital discharge for patients who have undergone TH after return of spontaneous circulation following OHCA.

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Multiorgan failure in patients after out of hospital resuscitation: a retrospective single center study
Yaacov Hasin, Yigal Helviz, Sharon Einav
Internal and Emergency Medicine.2024; 19(1): 159. CrossRef

Implementation of Therapeutic Hypothermia after Pediatric Out-of Hospital Cardiac Arrest in One Tertiary Emergency Center: Woo Jin Kim, Jin Joo Kim, Jae Ho Jang, Sung Youl Hyun, Hyuk Jun Yang, Gun Lee; Korean J Crit Care Med. 2013;28(1):25-32.; DOI: https://doi.org/10.4266/kjccm.2013.28.1.25

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Abstract PDF

BACKGROUND
Cardiac arrest in infants and children is rare than adults yet, it is critical. The efficacy and feasibility of therapeutic hypothermia after cardiac arrest in adults is proved through many studies however, there are few data on pediatric out-of hospital cardiac arrest. We analyzed several variables in pediatric therapeutic hypothermia after out-of hospital cardiac arrest.
METHODS
Infants and children (1 to 17 years old), who were admitted to our emergency intensive care units following the return of spontaneous circulation after out-of hospital cardiac arrest from Jan 2008 to Apr 2012, were included in this study. Basal patients' characteristics and variables about therapeutic hypothermia were analyzed.
RESULTS
A total of seventy-six patients visited our emergency center after a pediatric cardiac arrest during the study period. Among this, sixty-three patients received pediatric advanced life support, twenty one patients were admitted to intensive care units and nine patients received therapeutic hypothermia. Overall, the survival discharge was 7.9% (5 of 63). Among the admitted patients, 3 patients (14.3%) had a good Cerebral Performance Category (CPC). Two patients received endovascular cooling and seven patients received surface cooling. The mean time from the induction of therapeutic hypothermia to reaching the temperature with in the therapeutic range was 193.9 minutes. There were no critical adverse events during induction, maintenance and the rewarming period of therapeutic hypothermia.
CONCLUSIONS
Therapeutic hypothermia after pediatric out-of hospital cardiac arrest was performed safely and effectively in one emergency center. The standardized pediatric therapeutic hypothermia protocol should be established in order to be used widely in pediatric intensive care units. Further, larger studies are needed on the subject of pediatric therapeutic hypothermia.

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Epidemiological and Survival Trends of Pediatric Cardiac Arrests in Emergency Departments in Korea: A Cross-sectional, Nationwide Report
Jae Yun Ahn, Mi Jin Lee, Hyun Kim, Han Deok Yoon, Hye Young Jang
Journal of Korean Medical Science.2015; 30(9): 1354. CrossRef

The Frequency of Defibrillation Related to the Survival Rate and Neurological Outcome in Patients Surviving from Out-of-hospital Cardiac Arrest: Sung Yeol Hyun, Jae Ho Jang, Jin Joo Kim, Hyuk Jun Yang, Woo Jin Kim; Korean J Crit Care Med. 2012;27(4):263-268.; DOI: https://doi.org/10.4266/kjccm.2012.27.4.263

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Abstract PDF

BACKGROUND
Early defibrillation is the treatment of choice in out-of-hospital cardiac arrests (OHCA) with initial shockable rhythms. However, the relationship between the frequency of defibrillation and neurological outcome was not clear. In this study, the frequency of defibrillation and other factors related to neurological outcome were investigated.
METHODS
Records of 255 adult patients, who were admitted to the hospital after resuscitation from OHCA between November 2008 and March 2012, were retrospectively reviewed. 6 months after the return of spontaneous circulation, patients were divided into two groups based on the cerebral performance category (CPC) score for neurologic prognosis. The frequency of defibrillation during resuscitation and other variables were analyzed between the two groups.
RESULTS
In the study group, initial rhythm was divided into two groups, non shockable rhythm (200, 78.4%) and shockable rhythm (55, 21.6%). The frequency of 1-7 defibrillations was significantly associated with good neurological outcome (OR 3.05, 95% CI 1.328-6.850). In addition, shockable initial rhythm (OR 4.520, 95% CI 1.953-10.459), arrest caused cardiac origin (OR 2.945, 95% CI 1.334-6.500), time to BLS (OR 1.139, 95% CI 1.033-1.256) and lower APACHII score (OR 1.095, 95% CI 1.026-1.169), which were associated with good neurological outcomes, independently.
CONCLUSIONS
In those patients who survived from OHCA, adequate defibrillation was important to improve the neurological outcome, whether the initial rhythm was shockable or not. Frequency of 1-7 times defibrillation was associated with good neurological outcome.

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The Factors Influencing Survival of Out-of-hospital Cardiac Arrest with Cardiac Etiology
Su-Yeon Jeong, Chul-Woung Kim, Sung-Ok Hong
Journal of the Korea Academia-Industrial cooperation Society.2016; 17(2): 560. CrossRef

Men Associated with Good Prognosis after Return of Spontaneous Circulation after Out-of Hospital Cardiac Arrest: a Retrospective Study in One Emergency Center: Se Jong Oh, Jin Joo Kim, Sung Youn Hwang, Sung Youl Hyun, Hyuk Jun Yang, Gun Lee; Korean J Crit Care Med. 2012;27(1):24-28.; DOI: https://doi.org/10.4266/kjccm.2012.27.1.24

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Abstract PDF: BACKGROUND
The aim of this study was to analyze the gender factors associated with good or bad prognosis after return of spontaneous circulation after out-of hospital cardiac arrest.
METHODS
The patients admitted to the intensive care unit after successful resuscitation after out-of hospital cardiac arrest were retrospectively identified and evaluated. Thirty days mortality after admission, and neurologic outcome at 6 months after hospital discharge (cerebral performance category [CPC]) were evaluated.
RESULTS
One hundred forty-two patients were evaluated in this study; there were 101 males (71.1%). The median age was 52 years old (43-63). Thirty days after admission, 85 patients (59.9%) survived, 40 patients had a good neurologic outcome (CPC 1-2). The factors associated 30 days mortality were cause of arrest (non-cardiac, p = 0.03), lactate in emergency department (p = 0.05) and the factors associated with good neurologic outcome were males (p = 0.007), young age (p = 0.01), body weight and height (p = 0.001), cause of death (cardiac, p = 0.000). Alcohols and smoking were not associated with mortality and neurologic outcome. In multiple logistic regression analysis, men had a 8-fold increased good neurologic outcome (CPC 1-2) (odds ratio [OR] 8.038, 95% Confidence Interval [CI] 1.079-59.903). Other factors associated with good neurologic outcome were cardiac cause of death (OR 5.523, 95% CI 1.562-19.533) and young age (OR 1.055, 95% CI 1.009-1.103).
CONCLUSIONS
Men had a good neurologic outcome after return of spontaneous circulation after out-of hospital cardiac arrest in one emergency center. Other additional factors including gonadal hormones should be evaluated.

VAP (Ventilator-associated Pneumonia) in Patients with Pulmonary Contusion: Jong Hyun Jeong, Sung Youl Hyun, Jin Joo Kim, Jae Hyuk Kim, Yong Su Lim, Jin Seong Cho, Sung Yeon Hwang, Hyuk Jun Yang; Korean J Crit Care Med. 2010;25(4):224-229.; DOI: https://doi.org/10.4266/kjccm.2010.25.4.224

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Abstract PDF: BACKGROUND
This study was conducted to determine the incidence, risk factors, and outcome of ventilator-associated pneumonia in patients with pulmonary contusion.
METHODS
The study was conducted at an urban teaching hospital emergency department with an annual volume of 80,000 patient visits. A retrospective analysis was conducted on thoracic injury patients admitted between Jan 2007 and Dec 2009. Among 122 patients investigated, 30 patients were excluded. Patient data included basal characteristics and information related to development of ventilator-associated pneumonia and ultimate mortality. Statistical methods included the Chi-square test and the Mann-Whitney test. Study data were stored and processed using Microsoft Office Excel 2007 & SPSS 18.0 for Windows.
RESULTS
Ventilator-associated pneumonia developed in 46 patients (50%). The patients with ventilator-associated pneumonia were more likely to have a longer duration of hospitalization, longer length of ICU stay, longer duration of mechanical ventilation, a low initial GCS, a higher APACHE II score, and were more likely to require emergency intubation or tracheostomy. Factors associated with mortality included longer duration of hospitalization, longer duration of mechanical ventilation, low intial GCS and the need for dialysis.
CONCLUSIONS
Ventilator-associated pneumonia in the patients with pulmonary contusion was not relevant to mortality, but was relevant to longer hospitalization, length of ICU stay and duration of mechanical ventilation.

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