1.Trapping and A4-A4 end-to-side anastomosis for the treatment of a ruptured A3 fusiform aneurysm: Potential risk of in-situ bypass
Young Rak KIM ; Sung Ho LEE ; Jin Woo BAE ; Young Hoon CHOI ; Eun Jin HA ; Kang Min KIM ; Won-Sang CHO ; Hyun-Seung KANG ; Jeong Eun KIM
Journal of Cerebrovascular and Endovascular Neurosurgery 2023;25(1):62-68
The treatment of complicated anterior cerebral artery aneurysms remains challenging. Here, the authors describe a case of ruptured complicated A3 aneurysm, which was treated with trapping and in-situ bypass. A 47-year-old man presented to the emergency department with severe headache and vomiting. Computed tomography illustrated acute intracerebral hemorrhage in the right frontal lobe. Digital subtraction angiography (DSA) confirmed a ruptured fusiform A3 aneurysm with lobulation and a daughter sac. Trapping of the ruptured fusiform A3 aneurysm and distal end-toside A4 anastomosis was performed. DSA on postoperative day 7 showed mild vasospasm to the afferent artery. However, 2 months later, DSA demonstrated that the antegrade flow through the anastomosis site had recovered. Thus, surgeons should be aware of the possibility of postsurgical vasospasm of anastomosed arteries, especially in cases of ruptured aneurysms.
2.The Busan Regional CardioCerebroVascular Center Project’s Experience Over a Decade in the Treatment of ST-segment Elevation Myocardial Infarction
Kyunghee LIM ; Hyeyeon MOON ; Jong Sung PARK ; Young-Rak CHO ; Kyungil PARK ; Tae-Ho PARK ; Moo-Hyun KIM ; Young-Dae KIM
Journal of Preventive Medicine and Public Health 2022;55(4):351-359
Objectives:
The Regional CardioCerebroVascular Center (RCCVC) project was initiated to improve clinical outcomes for patients with acute myocardial infarction or stroke in non-capital areas of Korea. The purpose of this study was to evaluate the outcomes and issues identified by the Busan RCCVC project in the treatment of ST-segment elevation myocardial infarction (STEMI).
Methods:
Among the patients who were registered in the Korean Registry of Acute Myocardial Infarction for the RCCVC project between 2007 and 2019, those who underwent percutaneous coronary intervention (PCI) for STEMI at the Busan RCCVC were selected, and their medical data were compared with a historical cohort.
Results:
In total, 1161 patients were selected for the analysis. Ten years after the implementation of the Busan RCCVC project, the median door-to-balloon time was reduced from 86 (interquartile range [IQR], 64-116) to 54 (IQR, 44-61) minutes, and the median symptom-to-balloon time was reduced from 256 (IQR, 180-407) to 189 (IQR, 118-305) minutes (p<0.001). Inversely, the false-positive PCI team activation rate increased from 0.6% to 21.4% (p<0.001). However, the 1-year cardiovascular death and major adverse cardiac event rates did not change. Even after 10 years, approximately 75% of the patients had a symptom-to-balloon time over 120 minutes, and approximately 50% of the patients underwent inter-hospital transfer for primary PCI.
Conclusions
A decade after the implementation of the Busan RCCVC project, although time parameters for early reperfusion therapy for STEMI improved, at the cost of an increased false-positive PCI team activation rate, survival outcomes were unchanged.
3.Efficacy of Evolocumab in Patients with Hypercholesterolemia
Xuan JIN ; Moo Hyun KIM ; Young-Rak CHO ; Jong-Sung PARK ; Kai SONG ; Song Lin YUAN
Kosin Medical Journal 2020;35(2):125-132
Objectives:
The FOURIER trial reported that inhibition of PCSK9 with evolocumab on a background of statin therapy lowered low-density lipoprotein (LDL) cholesterol levels to a median of 30 mg per deciliter (0.78 mmol per liter) and reduced the risk of cardiovascular events. Here, we report data from a single center focusing on the effect of a PCSK9 inhibitor antibody on hyperlipidemia.
Methods:
We enrolled 29 hypercholesterolemia patients who had LDL cholesterol levels ≥ 70 mg per deciliter or nonHDL cholesterol ≥ 100 mg per deciliter and were divided into two groups (placebo n = 14, evolocumab n = 15), and participated in a 72 - 96 week, randomized, double-blind, placebo-controlled trial with statin therapy. Patients were randomly assigned to receive evolocumab (140 mg every 2 weeks or 420 mg monthly) or matched placebo via subcutaneous injection. Lipid changes during follow-up were analyzed.
Results:
The median LDL cholesterol level at baseline was 88 mg per deciliter, and the average LDL cholesterol level was 101.8 ± 20.0 mg per deciliter. At 4 weeks, the median LDL cholesterol level was 39 mg per deciliter, and the average LDL cholesterol level was 34.8 ± 51.8 mg per deciliter. Compared to placebo group, the LDL cholesterol levels were significantly reduced after treatment (P < 0.001), as well as total cholesterol, ApoB, and ApoB / ApoA1 levels. During follow-up, no discomfort was reported at local injection sites, and no cases of abnormal liver function were observed.
Conclusions
Evolocumab significantly reduced LDL cholesterol levels and was well tolerated.
4.Mediation effect of herpes zoster derived by statin use on cardiovascular disease risk
Sung-Han KIM ; Sung-Cheol YUN ; Young-Ho KHANG ; Min-Chul KIM ; Sun Uck KWON ; Gyung-Min PARK ; Young-Rak CHO ; Kwang Min LEE ; Moo Hyun KIM
The Korean Journal of Internal Medicine 2020;35(5):1220-1228
Background/Aims:
Although statins are widely used to reduce the risk of cardiovascular disease (CVD) including stroke and myocardial infarction (MI), it is reported that statin use increases the incidence of herpes zoster (HZ) that is associated with increased risk of CVD. So, we evaluated the mediation effect of HZ caused by statin use on CVD.
Methods:
We analyzed a prospective cohort from the National Health Insurance Service-database of South Korea. All individuals received a medical check-up and were followed-up from 2002 to 2013.
Results:
A total of 275,382 individuals > 40 years old were followed up for 11 years from 2003. Of these, 11,415 people (4%) were classified as statin users and 263,967 (96%) as non-statin users. Those who used statins had significantly lower risks of cardiovascular events, stroke, and MI compared with non-statin users; the adjusted hazard ratios in the multivariate analysis were 0.90 (95% confidence interval [CI], 0.82 to 0.98), 0.88 (95% CI, 0.80 to 0.98), and 0.91 (95% CI, 0.79 to 1.07), respectively. When we calculated the mediating effect of cardiovascular events by statin use through HZ, 11.6% of the total beneficial effect of cardiovascular events by statin use was mitigated through the occurrence of HZ caused by statin use. This mediating effect was higher in the younger age group (< 60 years).
Conclusions
This study showed that statin use reduced CVD by 10%, but the protective effect of statin use against CVD was mitigated by approximately 10% through the development of HZ caused by statin use.
5.Community-Based Pre-HospitalElectrocardiogram TransmissionProgram for Reducing Systemic TimeDelay in Acute ST-Segment ElevationMyocardial Infarction
Kyungil PARK ; Jong-Sung PARK ; Young-Rak CHO ; Tae-Ho PARK ; Moo-Hyun KIM ; Tae-Hyun YANG ; Doo-Il KIM ; Jung-Hwan KIM ; Yong-Hwan LEE ; Dong-Won LEE ; Jeongkee SEO ; Geun-Young LEE ; Young-Dae KIM
Korean Circulation Journal 2020;50(8):709-719
Background and Objectives:
In acute ST-segment elevation myocardial infarction (STEMI),on-site transmission of electrocardiogram (ECG) has been shown to reduce systemic timedelay to reperfusion and improve outcomes. However, it has not been adopted in communitybasedemergency transport system in Korea.
Methods:
Busan Regional Cardio-cerebrovascular Center and Busan Metropolitan City Fireand Safety Headquarters (BMFSH) jointly developed and conducted a pre-hospital ECGtransmission program. Seven tertiary hospitals and 22 safety stations of BMFSH participated.Systemic time delay to reperfusion of STEMI patients in the program was compared with thatof 95 patients transported by 119 emergency medical system (EMS) before the program wasimplemented.
Results:
During the study period, 289 ECG transmissions were made by 119 EMS personnel,executed within 5 minutes in 88.1% of cases. Of these, 42 ECGs were interpreted as STsegmentelevation. Final diagnosis of STEMI was made in 20 patients who underwent primarypercutaneous coronary intervention. With the program, systemic time delay to reperfusion wassignificantly reduced (median [interquartile range; IQR], 76.0 [62.2–98.7] vs. 90.0 [75.0–112.0],p<0.01). Significant reduction of door-to-balloon time was also observed (median [IQR], 45.0[34.0–69.5] vs. 58.0 [51.0–68.0], p=0.03). The proportion of patients with systemic time delayshorter than 90 minutes rose (51.6% vs. 75.0%, p=0.08) with pre-hospital ECG transmission.
Conclusions
We developed and implemented a community-based pre-hospital ECG transmission program for expeditious triage of STEMI patients. Significant reductions ofsystemic time delay and door-to-balloon time were observed. The expanded use of prehospitalECG transmission should be encouraged to realize the full potential of this program.
6.Efficacy of Evolocumab in Patients with Hypercholesterolemia
Xuan JIN ; Moo Hyun KIM ; Young-Rak CHO ; Jong-Sung PARK ; Kai SONG ; Song Lin YUAN
Kosin Medical Journal 2020;35(2):125-132
Objectives:
The FOURIER trial reported that inhibition of PCSK9 with evolocumab on a background of statin therapy lowered low-density lipoprotein (LDL) cholesterol levels to a median of 30 mg per deciliter (0.78 mmol per liter) and reduced the risk of cardiovascular events. Here, we report data from a single center focusing on the effect of a PCSK9 inhibitor antibody on hyperlipidemia.
Methods:
We enrolled 29 hypercholesterolemia patients who had LDL cholesterol levels ≥ 70 mg per deciliter or nonHDL cholesterol ≥ 100 mg per deciliter and were divided into two groups (placebo n = 14, evolocumab n = 15), and participated in a 72 - 96 week, randomized, double-blind, placebo-controlled trial with statin therapy. Patients were randomly assigned to receive evolocumab (140 mg every 2 weeks or 420 mg monthly) or matched placebo via subcutaneous injection. Lipid changes during follow-up were analyzed.
Results:
The median LDL cholesterol level at baseline was 88 mg per deciliter, and the average LDL cholesterol level was 101.8 ± 20.0 mg per deciliter. At 4 weeks, the median LDL cholesterol level was 39 mg per deciliter, and the average LDL cholesterol level was 34.8 ± 51.8 mg per deciliter. Compared to placebo group, the LDL cholesterol levels were significantly reduced after treatment (P < 0.001), as well as total cholesterol, ApoB, and ApoB / ApoA1 levels. During follow-up, no discomfort was reported at local injection sites, and no cases of abnormal liver function were observed.
Conclusions
Evolocumab significantly reduced LDL cholesterol levels and was well tolerated.
7.Effect of Korean Herbal Formula (Modified Ojayeonjonghwan) on Androgen Receptor Expression in an Aging Rat Model of Late Onset Hypogonadism.
Sae Woong CHOI ; Seung Hwan JEON ; Eun Bi KWON ; Guan Qun ZHU ; Kyu Won LEE ; Jin Bong CHOI ; Hyun Cheol JEONG ; Kang Sup KIM ; Sang Rak BAE ; Woong Jin BAE ; Su Jin KIM ; Hyuk Jin CHO ; U Syn HA ; Sung Hoo HONG ; Sung Yeoun HWANG ; Sae Woong KIM
The World Journal of Men's Health 2019;37(1):105-112
PURPOSE: Testosterone replacement therapy is an effective treatment for late-onset hypogonadism (LOH) despite a few contraindications and side-effects. The aim of this study was to determine whether modified Ojayeonjonghwan (KH-204, Korean herbal formula) improved LOH. KH-204 is a strong antioxidant herbal formula. We evaluated the effect of Korean herbal prescription on androgen receptor (AR) expression in an aged rat model of LOH. MATERIALS AND METHODS: Eighteen-month-old rats were used as aged LOH rat models. Eighteen Sprague-Dawley rats were randomly divided into three equal groups of six animals each and treated with one of the following: 1) normal control group (oral administration with distilled water, n=6), 2) KH-204 200 group (oral administration with 200 mg/kg of KH-204, n=6), and 3) KH-204 400 group (oral administration with 400 mg/kg of KH-204, n=6). After four weeks of treatment (once daily, distilled water or KH-204), serum testosterone levels, changes in testicular and epididymal weight, Western blotting analysis of AR expression and measurement of oxidative stress were examined. RESULTS: Treatment with the herbal formulation KH-204 200 mg/kg and 400 mg/kg (1) increased the weights of testis and epididymis; (2) increased the level of serum testosterone; (3) increased the level of superoxide dismutase and reduced the level of 8-hydroxy-20-deoxyguanosine; and (4) upregulated AR expression in testicular tissue. CONCLUSIONS: KH-204 might be an effective alternative for LOH. It improves antioxidant mechanisms and increases testicular AR expression without side-effects.
Aging*
;
Animals
;
Blotting, Western
;
Epididymis
;
Hypogonadism*
;
Male
;
Models, Animal*
;
Oxidative Stress
;
Phytotherapy
;
Prescriptions
;
Rats*
;
Rats, Sprague-Dawley
;
Receptors, Androgen*
;
Superoxide Dismutase
;
Testis
;
Testosterone
;
Water
;
Weights and Measures
8.A Case of Therapy-Related Acute Leukemia With Mixed Phenotype With BCR-ABL1 After Treatment of Diffuse Large B-Cell Lymphoma.
Dahae YANG ; Sung Ran CHO ; Seri JUNG ; Woonhyoung LEE ; Hyun Yong HWANG ; Ho Seop LEE ; Yang Soo KIM ; Jong Rak CHOI ; Mi Hyang KIM
Annals of Laboratory Medicine 2017;37(2):166-168
No abstract available.
Aged
;
Antineoplastic Combined Chemotherapy Protocols/adverse effects
;
Bone Marrow Cells/cytology/pathology
;
Female
;
Flow Cytometry
;
Fusion Proteins, bcr-abl/*genetics
;
Granulocyte Colony-Stimulating Factor/therapeutic use
;
Humans
;
Immunophenotyping
;
Leukemia/*diagnosis/etiology
;
Lymphoma, Large B-Cell, Diffuse/*drug therapy
;
Phenotype
;
Rituximab/administration & dosage
9.Minor BCR-ABL1-Positive Acute Myeloid Leukemia Associated With the NPM1 Mutation and FLT3 Internal Tandem Duplication.
Moon Jung KIM ; Sunhyun AHN ; Seong Hyun JEONG ; Ja Hyun JANG ; Jae Ho HAN ; Jong Rak CHOI ; Sung Ran CHO
Annals of Laboratory Medicine 2016;36(3):263-265
No abstract available.
Aged
;
Base Sequence
;
Bone Marrow/metabolism/pathology
;
DNA Mutational Analysis
;
Female
;
Fusion Proteins, bcr-abl/*genetics
;
Gene Duplication
;
Humans
;
In Situ Hybridization, Fluorescence
;
Leukemia, Myeloid, Acute/diagnosis/*genetics
;
Multiplex Polymerase Chain Reaction
;
Mutation
;
Nuclear Proteins/*genetics
;
Philadelphia Chromosome
;
fms-Like Tyrosine Kinase 3/*genetics
10.Comparison of Prolonged Atrial Electromechanical Delays with Different Definitions in the Discrimination of Patients with Non-Valvular Paroxysmal Atrial Fibrillation.
Dong Hyun LEE ; Sun Young CHOI ; Jong Sung PARK ; Jeong Min SEO ; Jae Hyuk CHOI ; Young Rak CHO ; Kyungil PARK ; Moo Hyun KIM ; Young Dae KIM
Korean Circulation Journal 2015;45(6):479-485
BACKGROUND AND OBJECTIVES: Previous studies have evaluated atrial electromechanical delays (AEMDs) with a number of different definitions to discriminate patients with paroxysmal atrial fibrillation (PAF) from controls without PAF. However, their discriminative values for PAF have not previously been directly compared. SUBJECTS AND METHODS: A total of 65 PAF patients and 130 control subjects matched for age, sex, history of hypertension, and diabetes mellitus were selected. The AEMDi and AEMDp were defined as the time intervals from the initiation of the P wave on the surface electrocardiogram to the initiation and peak of the late diastolic transmitral inflow on pulsed wave Doppler images, respectively. The AEMDim and AEMDpm were defined as the time intervals from the initiation of the P wave on the surface electrocardiogram to the initiation and peak of the late diastolic lateral mitral annular motion on tissue Doppler images, respectively. RESULTS: There were no significant differences in the clinical characteristics between the two groups. All 4 AEMDs were consistently longer in the PAF group, and proven effective to differentiate the PAF patients from the controls. The AEMDi measurement had a larger area under the curve (AUC) than the other AEMDs, left atrial volume index, and P wave amplitude. However, the AEMDp, AEMDim, and AEMDpm measurements had AUCs similar to those of the left atrial volume index and P wave amplitude. CONCLUSION: The findings suggest that the AEMDi is better than the other AEMDs for the discrimination of PAF patients from the controls.
Area Under Curve
;
Atrial Fibrillation*
;
Diabetes Mellitus
;
Discrimination (Psychology)*
;
Echocardiography
;
Electrocardiography
;
Humans
;
Hypertension

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