1.Clinical Implication of Hypoxic Liver Injury for Predicting Hypoxic Hepatitis and In-Hospital Mortality in ST Elevation Myocardial Infarction Patients
Seong Huan CHOI ; Ho-Jun JANG ; Young Ju SUH ; Sang-Don PARK ; Pyung Chun OH ; Jeonggeun MOON ; Kyounghoon LEE ; Jon SUH ; WoongChol KANG ; Tae-Hoon KIM ; Sung Woo KWON
Yonsei Medical Journal 2021;62(10):877-884
		                        		
		                        			Purpose:
		                        			In this study, we aimed to determine the value of hypoxic liver injury (HLI) in the emergency room (ER) for predicting hypoxic hepatitis (HH) and in-hospital mortality in ST elevation myocardial infarction (STEMI) patients. 
		                        		
		                        			Materials and Methods:
		                        			1537 consecutive STEMI patients were enrolled. HLI in the ER was defined as a ≥2-fold increase in serum aspartate transaminase (AST). HH was defined as a ≥20-fold increase in peak serum transaminase. Patients were divided into four groups according to HLI and HH status (group 1, no HLI or HH; group 2, HLI, but no HH; group 3, no HLI, but HH; group 4, both HLI and HH). 
		                        		
		                        			Results:
		                        			The incidences of HLI and HH in the ER were 22% and 2%, respectively. In-hospital mortality rates were 3.1%, 11.8%, 28.6%, and 47.1% for groups 1, 2, 3, and 4, respectively. Patients with HLI and/or HH had worse Killip class, higher cardiac biomarker elevations, and lower left ventricular ejection fraction. Multivariate logistic regression analysis showed that HLI in the ER was an independent predictor of HH [odds ratio 2.572, 95% confidence interval (CI) 1.166–5.675, p=0.019]. The predictive value of HLI in the ER for the development of HH during hospitalization was favorable [area under the curve (AUC) 0.737, 95% CI 0.643–0.830, sensitivity 0.548, specificity 0.805, for cut-off value AST >80]. Furthermore, in terms of in-hospital mortality, predictive values of HLI in the ER and HH during hospitalization were comparable (AUC 0.701 for HLI at ER and AUC 0.674 for HH). 
		                        		
		                        			Conclusion
		                        			Among STEMI patients, HLI in the ER is a significant predictor for the development of HH and mortality during hospitalization (INTERSTELLAR ClinicalTrials.gov number, NCT02800421).
		                        		
		                        		
		                        		
		                        	
2.Clinical Implication of Hypoxic Liver Injury for Predicting Hypoxic Hepatitis and In-Hospital Mortality in ST Elevation Myocardial Infarction Patients
Seong Huan CHOI ; Ho-Jun JANG ; Young Ju SUH ; Sang-Don PARK ; Pyung Chun OH ; Jeonggeun MOON ; Kyounghoon LEE ; Jon SUH ; WoongChol KANG ; Tae-Hoon KIM ; Sung Woo KWON
Yonsei Medical Journal 2021;62(10):877-884
		                        		
		                        			Purpose:
		                        			In this study, we aimed to determine the value of hypoxic liver injury (HLI) in the emergency room (ER) for predicting hypoxic hepatitis (HH) and in-hospital mortality in ST elevation myocardial infarction (STEMI) patients. 
		                        		
		                        			Materials and Methods:
		                        			1537 consecutive STEMI patients were enrolled. HLI in the ER was defined as a ≥2-fold increase in serum aspartate transaminase (AST). HH was defined as a ≥20-fold increase in peak serum transaminase. Patients were divided into four groups according to HLI and HH status (group 1, no HLI or HH; group 2, HLI, but no HH; group 3, no HLI, but HH; group 4, both HLI and HH). 
		                        		
		                        			Results:
		                        			The incidences of HLI and HH in the ER were 22% and 2%, respectively. In-hospital mortality rates were 3.1%, 11.8%, 28.6%, and 47.1% for groups 1, 2, 3, and 4, respectively. Patients with HLI and/or HH had worse Killip class, higher cardiac biomarker elevations, and lower left ventricular ejection fraction. Multivariate logistic regression analysis showed that HLI in the ER was an independent predictor of HH [odds ratio 2.572, 95% confidence interval (CI) 1.166–5.675, p=0.019]. The predictive value of HLI in the ER for the development of HH during hospitalization was favorable [area under the curve (AUC) 0.737, 95% CI 0.643–0.830, sensitivity 0.548, specificity 0.805, for cut-off value AST >80]. Furthermore, in terms of in-hospital mortality, predictive values of HLI in the ER and HH during hospitalization were comparable (AUC 0.701 for HLI at ER and AUC 0.674 for HH). 
		                        		
		                        			Conclusion
		                        			Among STEMI patients, HLI in the ER is a significant predictor for the development of HH and mortality during hospitalization (INTERSTELLAR ClinicalTrials.gov number, NCT02800421).
		                        		
		                        		
		                        		
		                        	
5.Complete Versus Culprit-Only Revascularization for ST-Segment Elevation Myocardial Infarction and Multivessel Disease in the 2(nd) Generation Drug-Eluting Stent Era: Data from the INTERSTELLAR Registry
Sung Woo KWON ; Sang Don PARK ; Jeonggeun MOON ; Pyung Chun OH ; Ho Jun JANG ; Hyun Woo PARK ; Tae Hoon KIM ; Kyounghoon LEE ; Jon SUH ; WoongChol KANG
Korean Circulation Journal 2018;48(11):989-999
		                        		
		                        			 BACKGROUND AND OBJECTIVES:
		                        			We aimed to compare outcomes of complete revascularization (CR) versus culprit-only revascularization for ST-segment elevation myocardial infarction (STEMI) and multivessel disease (MVD) in the 2nd generation drug-eluting stent (DES) era.
		                        		
		                        			METHODS:
		                        			From 2009 to 2014, patients with STEMI and MVD, who underwent primary percutaneous coronary intervention (PCI) using a 2nd generation DES for culprit lesions were enrolled. CR was defined as PCI for a non-infarct-related artery during the index admission. Major adverse cardiovascular event (MACE) was defined as cardiovascular (CV) death, non-fatal myocardial infarction, target lesion revascularization, or heart failure during the follow-up year.
		                        		
		                        			RESULTS:
		                        			In total, 705 MVD patients were suitable for the analysis, of whom 286 (41%) underwent culprit-only PCI and 419 (59%) underwent CR during the index admission. The incidence of MACE was 11.5% in the CR group versus 18.5% in the culprit-only group (hazard ratio [HR], 0.56; 95% confidence interval [CI], 0.37–0.86; p<0.01; adjusted HR, 0.64; 95% CI, 0.40–0.99; p=0.04). The CR group revealed a significantly lower incidence of CV death (7.2% vs. 12.9%; HR, 0.51; 95% CI, 0.31–0.86; p=0.01 and adjusted HR, 0.57; 95% CI; 0.32–0.97; p=0.03, respectively).
		                        		
		                        			CONCLUSIONS
		                        			CR was associated with better outcomes including reductions in MACE and CV death at 1 year of follow-up compared with culprit-only PCI in the 2nd generation DES era. 
		                        		
		                        		
		                        		
		                        	
6.Complete Versus Culprit-Only Revascularization for ST-Segment Elevation Myocardial Infarction and Multivessel Disease in the 2(nd) Generation Drug-Eluting Stent Era: Data from the INTERSTELLAR Registry
Sung Woo KWON ; Sang Don PARK ; Jeonggeun MOON ; Pyung Chun OH ; Ho Jun JANG ; Hyun Woo PARK ; Tae Hoon KIM ; Kyounghoon LEE ; Jon SUH ; WoongChol KANG
Korean Circulation Journal 2018;48(11):989-999
		                        		
		                        			
		                        			BACKGROUND AND OBJECTIVES: We aimed to compare outcomes of complete revascularization (CR) versus culprit-only revascularization for ST-segment elevation myocardial infarction (STEMI) and multivessel disease (MVD) in the 2nd generation drug-eluting stent (DES) era. METHODS: From 2009 to 2014, patients with STEMI and MVD, who underwent primary percutaneous coronary intervention (PCI) using a 2nd generation DES for culprit lesions were enrolled. CR was defined as PCI for a non-infarct-related artery during the index admission. Major adverse cardiovascular event (MACE) was defined as cardiovascular (CV) death, non-fatal myocardial infarction, target lesion revascularization, or heart failure during the follow-up year. RESULTS: In total, 705 MVD patients were suitable for the analysis, of whom 286 (41%) underwent culprit-only PCI and 419 (59%) underwent CR during the index admission. The incidence of MACE was 11.5% in the CR group versus 18.5% in the culprit-only group (hazard ratio [HR], 0.56; 95% confidence interval [CI], 0.37–0.86; p<0.01; adjusted HR, 0.64; 95% CI, 0.40–0.99; p=0.04). The CR group revealed a significantly lower incidence of CV death (7.2% vs. 12.9%; HR, 0.51; 95% CI, 0.31–0.86; p=0.01 and adjusted HR, 0.57; 95% CI; 0.32–0.97; p=0.03, respectively). CONCLUSIONS: CR was associated with better outcomes including reductions in MACE and CV death at 1 year of follow-up compared with culprit-only PCI in the 2nd generation DES era.
		                        		
		                        		
		                        		
		                        			Arteries
		                        			;
		                        		
		                        			Drug-Eluting Stents
		                        			;
		                        		
		                        			Follow-Up Studies
		                        			;
		                        		
		                        			Heart Failure
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Incidence
		                        			;
		                        		
		                        			Myocardial Infarction
		                        			;
		                        		
		                        			Percutaneous Coronary Intervention
		                        			
		                        		
		                        	
7.Comparison of Outcomes after Device Closure and Medication Alone in Patients with Patent Foramen Ovale and Cryptogenic Stroke in Korean Population.
Jeonggeun MOON ; Woong Chol KANG ; Sihoon KIM ; Pyung Chun OH ; Yae Min PARK ; Wook Jin CHUNG ; Deok Young CHOI ; Ji Yeon LEE ; Yeong Bae LEE ; Hee Young HWANG ; Taehoon AHN
Yonsei Medical Journal 2016;57(3):621-625
		                        		
		                        			
		                        			PURPOSE: To compare the effectiveness of device closure and medical therapy in prevention of recurrent embolic event in the Korean population with cryptogenic stroke and patent foramen ovale (PFO). MATERIALS AND METHODS: Consecutive 164 patients (men: 126 patients, mean age: 48.1 years, closure group: 72 patients, medical group: 92 patients) were enrolled. The primary end point was a composite of death, stroke, transient ischemic attack (TIA), or peripheral embolism. RESULTS: Baseline characteristics were similar in the two groups, except age, which was higher in the medical group (45.3±9.8 vs. 50.2±6.1, p<0.0001), and risk of paradoxical embolism score, which was higher in the closure group (6.2±1.6 vs. 5.7±1.3, p=0.026). On echocardiography, large right-to-left shunt (81.9% vs. 63.0%, p=0.009) and shunt at rest/septal hypermobility (61.1% vs. 23.9%, p<0.0001) were more common in the closure group. The device was successfully implanted in 71 (98.6%) patients. The primary end point occurred in 2 patients (2 TIA, 2.8%) in the closure group and in 2 (1 death, 1 stroke, 2.2%) in the medical group. Event-free survival rate did not differ between the two groups. CONCLUSION: Compared to medical therapy, device closure of PFO in patients with cryptogenic stroke did not show difference in reduction of recurrent embolic events in the real world's setting. However, considering high risk of echocardiographic findings in the closure group, further investigation of the role of PFO closure in the Asian population is needed.
		                        		
		                        		
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Cardiac Catheterization/adverse effects
		                        			;
		                        		
		                        			Disease-Free Survival
		                        			;
		                        		
		                        			Embolism/etiology/*prevention & control
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Fibrinolytic Agents/adverse effects/*therapeutic use
		                        			;
		                        		
		                        			Foramen Ovale, Patent/complications/*drug therapy/mortality/*surgery
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Ischemic Attack, Transient/*drug therapy/mortality/*surgery
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Republic of Korea/epidemiology
		                        			;
		                        		
		                        			Risk
		                        			;
		                        		
		                        			Secondary Prevention/methods
		                        			;
		                        		
		                        			*Septal Occluder Device/adverse effects
		                        			;
		                        		
		                        			Stroke/etiology/prevention & control
		                        			;
		                        		
		                        			Treatment Outcome
		                        			
		                        		
		                        	
8.STEP signaling pathway mediates psychomotor stimulation and morphine withdrawal symptoms, but not for reward, analgesia and tolerance.
Yoon Jung KIM ; Young KANG ; Hye Yeon PARK ; Jae Ran LEE ; Dae Yeul YU ; Takuya MURATA ; Yoichi GONDO ; Jung Hwan HWANG ; Yong Hoon KIM ; Chul Ho LEE ; Myungchull RHEE ; Pyung Lim HAN ; Bong Hyun CHUNG ; Hyun Jun LEE ; Kyoung Shim KIM
Experimental & Molecular Medicine 2016;48(2):e212-
		                        		
		                        			
		                        			Striatal-enriched protein tyrosine phosphatase (STEP) is abundantly expressed in the striatum, which strongly expresses dopamine and opioid receptors and mediates the effects of many drugs of abuse. However, little is known about the role of STEP in opioid receptor function. In the present study, we generated STEP-targeted mice carrying a nonsense mutation (C230X) in the kinase interaction domain of STEP by screening the N-ethyl-N-nitrosourea (ENU)-driven mutant mouse genomic DNA library and subsequent in vitro fertilization. It was confirmed that the C230X nonsense mutation completely abolished functional STEP protein expression in the brain. STEP(C230X−/−) mice showed attenuated acute morphine-induced psychomotor activity and withdrawal symptoms, whereas morphine-induced analgesia, tolerance and reward behaviors were unaffected. STEP(C230X−/−) mice displayed reduced hyperlocomotion in response to intrastriatal injection of the μ-opioid receptor agonist DAMGO, but the behavioral responses to δ- and κ-opioid receptor agonists remained intact. These results suggest that STEP has a key role in the regulation of psychomotor action and physical dependency to morphine. These data suggest that STEP inhibition may be a critical target for the treatment of withdrawal symptoms associated with morphine.
		                        		
		                        		
		                        		
		                        			Analgesia*
		                        			;
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Brain
		                        			;
		                        		
		                        			Codon, Nonsense
		                        			;
		                        		
		                        			Dopamine
		                        			;
		                        		
		                        			Enkephalin, Ala(2)-MePhe(4)-Gly(5)-
		                        			;
		                        		
		                        			Ethylnitrosourea
		                        			;
		                        		
		                        			Fertilization in Vitro
		                        			;
		                        		
		                        			Gene Library
		                        			;
		                        		
		                        			Mass Screening
		                        			;
		                        		
		                        			Mice
		                        			;
		                        		
		                        			Morphine*
		                        			;
		                        		
		                        			Phosphotransferases
		                        			;
		                        		
		                        			Protein Tyrosine Phosphatases
		                        			;
		                        		
		                        			Receptors, Opioid
		                        			;
		                        		
		                        			Reward*
		                        			;
		                        		
		                        			Street Drugs
		                        			;
		                        		
		                        			Substance Withdrawal Syndrome*
		                        			
		                        		
		                        	
9.Delayed Severe Hemobilia after Endoscopic Biliary Plastic Stent Insertion.
Sung Hak LEE ; Seung Goun HONG ; Kyoung Yong LEE ; Pyung Kang PARK ; Sung Du KIM ; Mahn LEE ; Dong Wook YU ; Man Yong HONG
Clinical Endoscopy 2016;49(3):303-307
		                        		
		                        			
		                        			Hemobilia is a rare gastrointestinal bleeding, usually caused by injury to the bile duct. Hemobilia after endoscopic retrograde cholangiopancreatography (ERCP) is generally self-limiting and patients will spontaneously recover, but some severe and fatal hemorrhages have been reported. ERCP-related bowel or bile duct perforation should be managed promptly, according to the type of injury and the status of the patient. We recently experienced a case of late-onset severe hemobilia in which the patient recovered after endoscopic biliary stent insertion. The problem was attributable to ERCP-related bile duct perforation during stone removal, approximately 5 weeks prior to the hemorrhagic episode. The removal of the stent was performed 10 days before the onset of hemobilia. The bleeding was successfully treated by two sessions of transarterial coil embolization.
		                        		
		                        		
		                        		
		                        			Bile Ducts
		                        			;
		                        		
		                        			Cholangiopancreatography, Endoscopic Retrograde
		                        			;
		                        		
		                        			Embolization, Therapeutic
		                        			;
		                        		
		                        			Hemobilia*
		                        			;
		                        		
		                        			Hemorrhage
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Plastics*
		                        			;
		                        		
		                        			Stents*
		                        			
		                        		
		                        	
10.Gas Gangrene Caused by Streptococcus anginosus.
Woo Cho CHUNG ; Se Young JUNG ; Pyung Kang PARK ; Sung Hak LEE ; Kyung Young LEE ; Kyung Joong KIM ; Mi Kyong JOUNG
Korean Journal of Medicine 2016;90(2):173-176
		                        		
		                        			
		                        			Gas gangrene, a subset of necrotizing myositis, is a bacterial infection that produces gas in tissues in gangrene. It is usually caused by Clostridium species, most commonly Clostridium perfringens. Streptococcus anginosus is a rare cause of gas gangrene, with very few cases reported. We report a rare case of traumatic gas gangrene caused by S. anginosus in a 57-year-old female with diabetes after being stabbed with scissors.
		                        		
		                        		
		                        		
		                        			Bacterial Infections
		                        			;
		                        		
		                        			Clostridium
		                        			;
		                        		
		                        			Clostridium perfringens
		                        			;
		                        		
		                        			Diabetes Mellitus
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Gangrene
		                        			;
		                        		
		                        			Gas Gangrene*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Myositis
		                        			;
		                        		
		                        			Streptococcus anginosus*
		                        			;
		                        		
		                        			Streptococcus*
		                        			
		                        		
		                        	
            
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