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Fabry Disease Presenting with Hypertrophic Cardiomyopathy and Tricuspid Regurgitation
조상철,유한욱,이재원,장정윤,허란,송종민 한국심초음파학회 2016 Journal of Cardiovascular Imaging (J Cardiovasc Im Vol.24 No.4
A 71-year-old female who was diagnosed with nonobstructive hypertrophic cardiomyopathy since 1999 presented with dyspneaand severe edema on both legs. For the management of her symptom, cardiac surgery including tricuspid annuloplasty, Maze operationand right atrial reduction plasty was performed. During follow-up after cardiac surgery, a plasma α-galactosidase activitywas checked for the screening of Fabry disease and the result was around lower normal limit. DNA analysis was implemented forconfirmation and it revealed a heterozygote α-galactosidase mutation at exon 6 [c.901C>T (p.Arg301Ter)]. This case suggeststhat Fabry disease might be easily undetected, and clinical suspicion is critical.
Metabolic Syndrome Causes Cardiovascular Disease under Stable Statin Medication
조상철,Hoonhee Lee,Hyo-Jung Nam,한기훈 한국지질동맥경화학회 2017 지질·동맥경화학회지 Vol.7 No.2
Objective: Statins are known to prevent only 30-50% of cardiovascular disease(CVD) by reducing low-density lipoproteincholesterol (LDL-C). There is a controversy about whether metabolic syndrome(MS) can increase the risk of CVD. The aimof this study is to investigate whether MS can increase the risk of CVD, even after LDL-C is ideally controlled by taking statins. Methods: As a retrospective observational study, we investigated CVD events of 909 patients (61.3±10.2 years old) byreviewing medical records for at least 1 year before and after taking statins respectively, from June 2005 to February 2008,and analyzed the risk factors of CVD. Results: During the study period (881.4±232.8 days), 46 cases of CVD events occurred in patients with a very high riskof CVD and in patients with a high risk of CVD. In patients with a very high risk of CVD, 56.8% (21 cases over 37)of CVD events occurred in patients who achieved LDL-C goal (<70 mg/dL). A total of 9 events developed among highrisk patients who reached LDL-C goal (<100 mg/dL). The patients with MS revealed significantly higher rates of CVDevents [p=0.015; hazard ratio (HR) 3.033; 95% confidence interval (CI) 1.184-7.768]. Significantly higher rates of CVDevents were also found in subgroup analysis of the patient with a past history of CVD events [p=0.017; HR 3.431; 95%CI 1.183-9.956]. Similar pattern was demonstrated in patients with diabetes [p=0.049; HR 2.738; 95% CI 0.963-7.782]. Cox regression analysis identified metabolic syndrome [p=0.025; HR 5.237; 95% CI 1.235-22.204], a past history of CVDevents [p=0.000; HR 5.349; 95% CI 2.321-12.327], basal LDL-C level [p=0.024; HR 1.013; 95% CI 1.002-1.025] andtotal cholesterol level after statin therapy [p=0.024; HR 0.978; 95% CI 0.959-0.997] as independent predictors of CVDamong LDL-C goal achieved patients. Conclusion: Metabolic syndrome is the independent risk factor of CVD events in high risk patients with or without apast history of CVD events or diabetes. In these patients, statins could not prevent CVD events effectively. (J Lipid Atheroscler2017 December;6(2):75-83).
Laparoscopic Transabdominal Transfer of Blastocysts in Korean Black Goats
조상철,조종기,신상태 사단법인 한국동물생명공학회 2017 한국동물생명공학회지 Vol.32 No.2
As a part of the effort to improve post-transfer survival rate of embryos in Korean black goats, a technique for laparoscopic uterine transfer of blastocysts was carried out. A total of 26 transferrable embryos (morula to expanded blastocysts) were transferred to 13 recipient goats via transabdominal laparoscopic method. In consequence of our hormone protocol, 65% of the recipients (13/20) were found to have synchronized estrus. After confirmation of corpus luteum in each recipient goat, a Babcock laparoscopic forceps was inserted into the lower abdominal cavity to hold a uterine horn and fasten it near the peritoneum without causing injury. Then 7.5cm long 16G IV catheter was inserted directly into the uterine lumen through the abdominal wall. After removal of the stylet of the IV catheter, the embryo transfer tube (identical in size to the stylet and loaded with blastocysts) was inserted into the uterine lumen through the catheter to unload the embryos. Of the 13 estrus synchronized recipients, 9 were transferred blastocysts and 4 were transferred molurae (2 embryos in each recipient) in uterine ipsilateral to the ovary with corpus luteum. Four of the 9 recipients which blastocysts were transferred using this method has been confirmed pregnant (44.4% pregnancy rate).
조상철,서영호,박정수,박상현,정안덕,이봉규,주소영,이남훈,송근영,송성환,이인경,고향미 대한소화기내시경학회 2008 Clinical Endoscopy Vol.36 No.3
급성 하부위장관출혈의 원인은 치질이 가장 흔하며, 그 외에 게실증, 혈관형성이상, 허혈결장염 등이 있으나, 충수돌기가 원인이 되는 경우는 드물다. 저자들은 신선혈변을 주소로 내원한 33세 여자 환자의 대장내시경에서 충수돌기의 출혈을 확인한 후 수술을 통해 얻은 조직검사에서 충수돌기의 양성궤양이 진단된 1예를 경험하였기에 문헌고찰과 함께 보고한다.
조상철 관광경영학회 2000 관광경영연구 Vol.8 No.-
The purpose of this study is to examine the features of situational influence in the hotel restaurant Choice and to help the managers of Hotel restaurant in marketing, management and sales promotion in such a competitive situation of the hotel industry. More specifically, it has investigated the differences between the restaurant choice and choice factors in situational influence and identified there are also differences between hotel choices and choice factors in situational influence and demographic variables. This study should be considered more since the sample was not completely random and need to deveiop the dimension on situational influence factors. Therefore, the more systematic and continuous study should be executed to overcome those kind of limits.
40세 이하의 한국인에서 발생한 급성 심근경색증의 임상적 특성
조상철 ( Sang Cheol Cho ),정명호 ( Myung Ho Jeong ),김원 ( Weon Kim ),최옥자 ( Ok Ja Choi ),정안덕 ( An Doc Chung ),강원유 ( Won Yu Kang ),조용찬 ( Yong Chan Cho ),안영근 ( Young Keun Ahn ),김완 ( Wan Kim ) 대한내과학회 2008 대한내과학회지 Vol.74 No.5
Background/Aims: It is known that mortality increases with age for patients who suffer with acute myocardial infarction (AMI). Yet there isn`t much data on the clinical characteristics and long-term prognosis of young patients with AMI. Methods: We analyzed two groups of patients with AMI who underwent coronary angiogram: 108 patients younger than 40 years as group I and 64 patients over 70 years old as group II. We compared the baseline clinical characteristics, the echocardiographic and coronary angiographic findings, and the major adverse cardiac event (MACE). Results: Male gender (94.4% vs. 56.1%, respectively, p<0.001), smoking (78.7% vs. 46.9%, respectively, p<0.001) and hyperlipidemia (45.4% vs. 14.1%, respectively, p<0.001) were more frequent in group I, whereas hypertension (23.1% vs. 40.6%, respectively, p=0.015) and diabetes (11.6% vs. 34.4%, respectively, p<0.001) were more common in group II. The left ventricular ejection fraction (55.1±12.2% vs. 50.5±14.1%, respectively, p=0.042) was higher in group I. The serum levels of high sensitivity C-reactive protein (1.7±2.6 vs. 3.4±4.4 mg/L, respectively, p=0.015) and homocysteine (11.5±7.0 vs. 15.3±9.7 μg/L, respectively, p=0.029) were higher in group II. One vessel disease (78.7% vs. 59.4%, respectively, p=0.007) and good Thrombolysis In Myocardial Infarction (TIMI) flow (TIMI II-III, 58.3% vs. 41.2%, respectively, p=0.040) were more common in group 1. There were no differences between the two groups for the development of MACE during the 28±21 months of clinical follow-up, but cardiac death was lower in group I than in group II (2.1% vs. 15.4%, respectively, p=0.002). Conclusions: Male gender, smoking and hyperlipidemia were the major risk factors of Korean young AMI patients. In addition, single vessel disease and good TIMI flow were more frequent and cardiac death was less frequent in the younger AMI patients.(Korean J Med 74:515-522, 2008)
池元哲,趙相喆 弘益大學校 科學技術硏究所 2001 科學技術硏究論文集 Vol.12 No.-
Association Rule Mining,(Agrawal et al., 1993) is an exploration method which searches associative relations between item sets in large database. Association Rule Mining, in general, searches association between qualitative items. To adapt Association Rule Mining to quantitative attributes, Quantitative Association Rule Mining is introduced in 1996. Sequential Pattern Mining and N-Dimensional Inter Transaction Mining are applications of Association Rule for Time series analysis by extending time dimensions to the Association Rule. Analyzing complex time series, such as stock price movement, using quantitative model is limited, and Technical Analysis like a chart analysis is an alternative approach for them. Technical Analysis recognizes patterns, and analyzes impacts effected by the pattern. In this work, we defined pattern on the time series syntactically and analyzed the patterns and recognized the patterns which is frequently emerges in the time series, and, explored the other patterns as an impact of discovered patterns in former step. For this purpose, we used N-dimensional Inter Transaction Association Rule and syntactically described pattern(of both quantitative, qualitative attribute). So it enables pattern recognition, analyzing impacts and forecasting of complex time series such as stock prive movement