1.Risk Factors of Chronic Subdural Hematoma Progression after Conservative Management of Cases with Initially Acute Subdural Hematoma.
Jong Joo LEE ; Yusam WON ; Taeyoung YANG ; Sion KIM ; Chun Sik CHOI ; Jaeyoung YANG
Korean Journal of Neurotrauma 2015;11(2):52-57
OBJECTIVE: Acute subdural hematoma (ASDH) patients are treated conservatively or surgically according to the guidelines for surgical treatment. Many patients with thin ASDH and mild neurologic deficit are managed conservatively, but sometimes aggravation of thin ASDH to chronic subdural hematoma (CSDH) results in exacerbated clinical symtoms and consequently requires surgery. The aim of this study is to evaluate risk factors that indicate progression of initially non-operated ASDH to CSDH. METHODS: We divided 177 patients, presenting with ASDH (managed conservatively initially) between January 2008 to December 2013, into two groups; 'CSDH progression group' (n=16) and 'non-CSDH progression group' (n=161). Patient's data including age, sex, past medical history, medication were collected and brain computed tomography was used for radiologic analysis. RESULTS: Our data demonstrated that no significant intergroup difference with respect to age, sex ratio, co-morbid conditions, medication history, ischemic heart disease, liver disease and end-stage renal disease was found. However, Hounsfield unit (hematoma density) and mixed density was higher in the 'ASDH progression group' (67.50+/-7.63) than in the 'non-CSDH progression group' (61.53+/-10.69) (p=0.031). Midline shifting and hematoma depth in the 'CSDH progression group' were significantly greater than the 'non-CSDH progression group' (p=0.067, p=0.005). CONCLUSION: Based on the results of this study, the risk factors that are related to progression of initially non-operated ASDH to CSDH are higher Hounsfield unit and hematoma depth. Therefore, we suggest that ASDH patients, who have bigger hematoma depth and higher Hounsfield unit, should be monitored and managed carefully during the follow-up period.
Brain
;
Follow-Up Studies
;
Hematoma
;
Hematoma, Subdural, Acute*
;
Hematoma, Subdural, Chronic*
;
Humans
;
Kidney Failure, Chronic
;
Liver Diseases
;
Myocardial Ischemia
;
Neurologic Manifestations
;
Risk Factors*
;
Sex Ratio
2.The comparison of the accuracy of temporary crowns fabricated with several 3D printers and a milling machine
Junsik LEE ; Sungwon JU ; Jihyung KIM ; Sion HWANG ; Jinsoo AHN
The Journal of Advanced Prosthodontics 2023;15(2):72-79
PURPOSE:
. The purpose of this in vitro study was to compare the accuracy of various 3D printers and a milling machine.
MATERIALS AND METHODS:
. The die model was designed using CAD (Autodesk Inventor 2018 sp3). The 30 µm cement space was given to the die and the ideal crown of the mandibular left first molar was designed using CAD (ExoCAD). The crowns were produced using the milling machine (Imes-icore 250i) and the 3D printers (Zenith U, Zenith D, W11) and they were divided into four groups. In all groups, the interior of each crown was scanned (Identica blue) and superimposed (Geomagic Control X) with the previously designed die. The difference between the die and the actual crown was measured at specific points. The Kruskal-Wallis test, the Mann-Whitney test, and Bonferroni’s method were performed with a statistical analysis software (P < .008 in inter-group comparison P < .001 in intra-group comparison).
RESULTS:
. In all groups, the center of the occlusal area and the anti-rotational dimple area showed significantly greater difference and the marginal area showed the smallest difference comparatively. The mean value of the difference in each area and the sum of the differences were higher in order of W11, Imes-icore 250i, Zenith D, and Zenith U.
CONCLUSION
. The digital light processing (DLP) method shows higher accuracy compared to the sereolithography (SLA) method using the same resin material. [J Adv Prosthodont 2023;15:72-9]
3.Mortality difference between early-identified sepsis and late-identified sepsis
Woon JEE ; Sion JO ; Jae Baek LEE ; Youngho JIN ; Taeoh JEONG ; Jae Chol YOON ; Boyoung PARK
Clinical and Experimental Emergency Medicine 2020;7(3):150-160
Objective:
The aim of the study was to compare the mortality rates of patients with early-identified (EI) sepsis and late-identified (LI) sepsis.
Methods:
We performed a retrospective chart review of patients admitted to the emergency department and diagnosed with sepsis. EI sepsis was defined as patients with a Sequential Organ Failure Assessment (SOFA) score ≥2, based on 3 parameters of the SOFA score (Glasgow coma scale, mean arterial pressure, and partial pressure of oxygen/fraction of inspired oxygen ratio), measured within an hour of emergency department admission. The remaining patients were defined as LI sepsis. The primary outcome was in-hospital mortality.
Results:
Of the total 204 patients with sepsis, 113 (55.4%) had EI sepsis. Overall mortality rate was 15.7%, and EI sepsis group had significantly higher mortality than LI sepsis (23.0% vs. 6.6%, P=0.003). The patients with EI sepsis, compared to those with LI sepsis, had higher SOFA score (median: 4 vs. 2, P<0.001); Acute Physiology and Chronic Health Evaluation (APACHE) II score (median: 14 vs. 10, P<0.001); were more likely to progress to septic shock within 6 hours after admission (17.7% vs. 1.1%, P<0.001); were more likely to be admitted to the intensive care unit (2.2% vs. 1.1%, P=0.001).
Conclusion
Mortality was significantly higher in the EI sepsis group than in the LI sepsis group.
4.Cereblon Deletion Ameliorates Lipopolysaccharide-induced Proinflammatory Cytokines through 5′-Adenosine Monophosphate-Activated Protein Kinase/Heme Oxygenase-1 Activation in ARPE-19 Cells
Yun Kyu KIM ; Soo Chul CHAE ; Hun Ji YANG ; Da Eun AN ; Sion LEE ; Myeong Gu YEO ; Kyung Jin LEE
Immune Network 2020;20(3):e26-
Cereblon (CRBN), a negative modulator of AMP-activated protein kinase (AMPK), is highly expressed in the retina. We confirmed the expression of CRBN in ARPE-19 human retinal cells by Western blotting. We also demonstrated that CRBN knock-down (KD) could effectively downregulate IL-6 and MCP-1 protein and gene expression in LPS-stimulated ARPE-19 cells. Additionally, CRBN KD increased the phosphorylation of AMPK/acetyl-coenzyme A carboxylase (ACC) and the expression of heme oxygenase-1 (HO-1) in ARPE-19 cells. Furthermore, CRBN KD significantly reduced LPS-induced nuclear translocation of NF-κB p65 and activation of NF-κB promoter activity. However, these processes could be inactivated by compound C (inhibitor of AMPK) and zinc protoporphyrin-1 (ZnPP-1; inhibitor of HO-1). In conclusion, compound C and ZnPP-1 can rescue LPS-induced levels of proinflammatory cytokines (IL-6 and MCP-1) in CRBN KD ARPE-19 cells. Our data demonstrate that CRBN deficiency negatively regulates proinflammatory cytokines via the activation of AMPK/HO-1 in the retina.
5.Comparison of the diagnostic performance of initial serum procalcitonin, lactate, and C-reactive protein for predicting bacteremia in female patients with acute pyelonephritis
Byoungjin KIM ; Sion JO ; Jae Baek LEE ; Youngho JIN ; Taeoh JEONG ; Jaechol YOON ; Boyoung PARK
Journal of the Korean Society of Emergency Medicine 2019;30(1):52-60
OBJECTIVE: The purpose of the present study was to compare the diagnostic performance of initial procalcitonin, lactate, and high-sensitive C-reactive protein (hsCRP) for predicting bacteremia in female patients with acute pyelonephritis (APN). METHODS: We conducted a retrospective study of female APN patients who visited the emergency department (ED) at the studied hospital between January 2015 and December 2016. The main outcome was bacteremia, which was reported via the first blood culture at ED. The patient demographics, co-morbidities, physiologies, and laboratory variables including initial procalcitonin, lactate, and hsCRP levels, were collected and analyzed to identify associations with the presence of bacteremia. The area under the receiver operating curve (AUROC) and sensitivity (SE)/specificity (SP) were calculated for each variable. RESULTS: During the study period, 282 patients were enrolled. A total of 105 (37.2%) patients had bacteremia. Escherichia coli was the most frequent pathogen. The AUROC was 0.70 (0.63–0.76), 0.70 (0.63–0.76), and 0.56 (0.49–0.63) for the procalcitonin, lactate, and hsCRP, respectively. At a cut-off value of 0.163 ng/mL, the procalcitonin level predicted bacteremia, with a SE/SP of 95.2%/22.6%, respectively. At a cut-off value of 0.7 mmol/L, the lactate level predicted bacteremia with a SE/SP of 96.2%/20.9%, respectively. The combination of a procalcitonin level >0.447 ng/mL or a lactate level >0.7 mmo/L was chosen, as they showed 100% SE and a 100% negative predictive value. CONCLUSION: The initial serum procalcitonin and lactate levels showed similar and fair discriminative performance for predicting bacteremia in female APN patients, while the hsCRP level showed poor performance. The combination of procalcitonin and lactate (procalcitonin level≤0.447 ng/mL and lactate≤0.7 mmol/L) can be used to identify patients at low risk of bacteremia.
Bacteremia
;
C-Reactive Protein
;
Demography
;
Emergency Service, Hospital
;
Escherichia coli
;
Female
;
Humans
;
Lactic Acid
;
Pyelonephritis
;
Retrospective Studies
6.Comparison of the National Early Warning Score+Lactate score with the pre-endoscopic Rockall, Glasgow-Blatchford, and AIMS65 scores in patients with upper gastrointestinal bleeding.
Daejin KIM ; Sion JO ; Jae Baek LEE ; Youngho JIN ; Taeoh JEONG ; Jaechol YOON ; Boyoung PARK
Clinical and Experimental Emergency Medicine 2018;5(4):219-229
OBJECTIVE: We compared the predictive value of the National Early Warning Score+Lactate (NEWS+L) score with those of other parameters such as the pre-endoscopic Rockall score (PERS), Glasgow-Blatchford score (GBS), and albumin, international normalized ratio, altered mental status, systolic blood pressure, age older than 65 years score (AIMS65) among patients with upper gastrointestinal bleeding (UGIB). METHODS: We conducted a retrospective study of patients with UGIB during 2 consecutive years. The primary outcome was the composite of in-hospital death, intensive care unit admission, and the need for ≥5 packs of red blood cell transfusion within 24 hours. RESULTS: Among 530 included patients, the composite outcome occurred in 59 patients (19 in-hospital deaths, 13 intensive care unit admissions, and 40 transfusions of ≥5 packs of red blood cells within 24 hours). The area under the receiver operating characteristic curve of the NEWS+L score for the composite outcome was 0.76 (95% confidence interval, 0.70 to 0.82), which demonstrated a significant difference compared to PERS (0.66, 0.59–0.73, P=0.004), but not to GBS (0.70, 0.64–0.77, P=0.141) and AIMS65 (0.76, 0.70–0.83, P=0.999). The sensitivities of NEWS+L scores of 3 (n=34, 6.4%), 4 (n=92, 17.4%), and 5 (n=171, 32.3%) were 100%, 98.3%, and 96.6%, respectively, while the sensitivity of an AIMS65 score of 0 (n=159, 30.0%) was 91.5%. CONCLUSION: The NEWS+L score showed better discriminative performance than the PERS and comparable discriminative performance to the GBS and AIMS65. The NEWS+L score may be used to identify low-risk patients among patients with UGIB.
Blood Pressure
;
Erythrocyte Transfusion
;
Erythrocytes
;
Hemorrhage*
;
Humans
;
Intensive Care Units
;
International Normalized Ratio
;
Lactic Acid
;
Mortality
;
Retrospective Studies
;
ROC Curve
7.Change in peak expiratory flow rate after the head-tilt/chin-lift maneuver among young, healthy, and conscious volunteers
Sion JO ; Jae Baek LEE ; Youngho JIN ; Taeoh JEONG ; Jaechol YOON ; Boyoung PARK
Clinical and Experimental Emergency Medicine 2019;6(1):36-42
OBJECTIVE: The head-tilt/chin-lift (HT/CL) is a simple, routinely used maneuver to open the upper airway. Changes in the peak expiratory flow rate (PEFR) before and after the HT/CL maneuver have not been evaluated among conscious volunteers who are regarded as a control cohort.METHODS: Sixty healthy 20-year-old volunteers (30 males and 30 females) were enrolled. The supine position was defined as the position at which the ear-eye line was at a 10° angle to the horizontal. The HT/CL position was defined as the position at which the ear-eye line was at a 25° angle to the horizontal. PEFR was measured using a hand-held device with the subject in the supine position (pre-PEFR) and HT/CL position (post-PEFR), respectively. One set was defined as these two measurements. Five sets of measurements were performed on each subject (300 sets). The set with the maximal and minimal difference between pre-PEFR and post-PEFR were excluded from the analysis. We used a paired t-test to compare the mean pre-PEFR and post-PEFR values for the entire group and subgroups divided by sex, height, body weight, body mass index and response status.RESULTS: Overall, 360 measurements (180 sets) were analyzed. The mean pre-PEFR and post-PEFR were 316.1±87.6 and 346.5±94.7 L/min, respectively. Further, significant differences were observed for sex, height, body weight, and body mass index. In 10 subjects, post-PEFR was lower than pre-PEFR.CONCLUSION: PEFR increased by 9.6% after the HT/CL maneuver in young conscious subjects, but some subjects showed decreased PEFR after the HT/CL maneuver.
Airway Management
;
Body Height
;
Body Mass Index
;
Body Weight
;
Cohort Studies
;
Humans
;
Male
;
Peak Expiratory Flow Rate
;
Supine Position
;
Volunteers
;
Young Adult
8.Prognostic impact of serum soluble PD-1 and ADV score for living donor liver transplantation in patients with previously untreated hepatocellular carcinoma
Shin HWANG ; Kyung Jin LEE ; Deok-Bog MOON ; Gi-Won SONG ; Dong-Hwan JUNG ; Yun Kyu KIM ; Hunji YANG ; Da Eun AN ; Sion LEE ; Sung-Gyu LEE
Annals of Surgical Treatment and Research 2022;102(1):46-54
Purpose:
The programmed death protein 1 (PD-1) pathway is the critical mechanism in development of hepatocellular carcinoma (HCC). The present study analyzed the prognostic impact of pretransplant serum soluble PD-1 (sPD-1) concentration and α-FP–des-γ- –tumor volume (ADV) score in patients with previously untreated HCC undergone liver transplantation (LT).
Methods:
This retrospective single-center study enrolled 100 patients with HCC who underwent living donor LT from 2010 to 2016. Concentrations of sPD-1 were measured in stored serum samples.
Results:
Receiver operating characteristic curve analysis of 2-year tumor recurrence resulted in an sPD-1 cutoff of 177.1 µg/mL, which was associated with higher rates of tumor recurrence (P = 0.022), but not with overall patient survival (P = 0.460). The derived cutoff for pretransplant ADV score was 5.4log, which was associated with higher tumor recurrence rate (P < 0.001) and lower overall patient survival rate (P < 0.001). Both sPD-1 of >177.1 µg/mL (hazard ratio [HR], 2.26; P = 0.020) and pretransplant ADV score of >5.4log (HR, 3.56; P < 0.001) were independent risk factors for posttransplant HCC recurrence. The combination of these 2 factors enabled the stratification of patients into 3 groups, with groups having 0, 1, and 2 risk factors differing significantly in the prognosis of tumor recurrence (P < 0.001) and overall patient survival (P = 0.006).
Conclusion
Both sPD-1 concentration and ADV score have prognostic impacts in patients who underwent LT for untreated HCCs. These factors, both individually and combined, can help in predicting posttransplant prognosis.