1.Frontal cranioplasty using methylmethacrylate.
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1992;19(6):943-948
No abstract available.
Methylmethacrylate*
2.A Case of Tuberous Sclerosis with Multiple Fibroma on Scalp and Extremity.
Hyoung Suk KIM ; Hii Sun JEONG ; Keuk Shun SHIN ; Sang Yeob LEE ; Ji Sun SONG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2008;35(3):341-344
PURPOSE: Tuberous sclerosis is an autosomal dominant multisystemic neurocutaneous syndrome characterized by the development of multiple hamartoma distributed through the body, skin, brain, heart, kidney, and lung. The classic triad is seizure, mental retardation, and facial angiofibroma. We experienced a case of a tuberous sclerosis associated with the facial lesion and multiple masses on scalp, forehead, and right lower extremity. METHODS: This a 34-year-old male patient had subependymal giant cell astrocytoma in brain and multiple angiomyolipoma in both kidneys. Tangential excision with razor blade and dermabrasion were done on the centrofacial area. We excised other lesions and the mass on scalp was excised and covered with split thickness skin graft. RESULTS: The histopathological finding revealed that the facial lesion was angiofibroma and the others were multiple fibroma. CONCLUSION: In our case of tuberous sclerosis, we chose the tangential excision to remove the large nodules of angiofibroma, and then dermabrasion was used to smooth the final contour. The patient appeared to have a good results from this treatment modality. But, tuberous sclerosis is an disease that needs long term follow-up to check up the recurrence of skin problem.
Adult
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Angiofibroma
;
Angiomyolipoma
;
Astrocytoma
;
Brain
;
Dermabrasion
;
Extremities
;
Fibroma
;
Forehead
;
Hamartoma
;
Heart
;
Humans
;
Intellectual Disability
;
Kidney
;
Lung
;
Male
;
Neurocutaneous Syndromes
;
Recurrence
;
Scalp
;
Seizures
;
Skin
;
Tuberous Sclerosis
3.Relationship between Angiographic Late Loss and 5-Year Clinical Outcome after Drug-Eluting Stent Implantation.
Young June YANG ; Sanghoon SHIN ; Byeong Keuk KIM ; Jung Sun KIM ; Dong Ho SHIN ; Young Guk KO ; Donghoon CHOI ; Yangsoo JANG ; Myeong Ki HONG
Yonsei Medical Journal 2013;54(1):41-47
PURPOSE: Currently, insufficient data exist to evaluate the relationship between angiographic late loss (LL) and long-term clinical outcome after drug-eluting stent (DES) implantation. In this study, we hypothesized that angiographic LL between 0.3 and 0.6 mm correlate with favorable long-term clinical outcomes. MATERIALS AND METHODS: Patients were enrolled in the present study if they had undergone both DES implantation in single coronary vessel and a subsequent follow-up angiogram (n=634). These individuals were then subdivided into three groups based on their relative angiographic LL: group I (angiographic LL <0.3 mm, n=378), group II (angiographic LL between 0.3 and 0.6 mm, n=124), and group III (angiographic LL >0.6 mm, n=134). During a 5-year follow-up period, all subjects were tracked for critical events, defined as any cause of death or myocardial infarction, which were then compared among the three groups. RESULTS: Mean follow-up duration was 63.0+/-10.0 months. Critical events occurred in 25 subjects in group I (6.6%), 5 in group II (4.0%), and 17 in group III (12.7%), (p=0.020; group I vs. group II, p=0.293; group II vs. group III, p=0.013). In a subsequent multivariate logistic regression analysis, chronic renal failure [odds ratio (OR)=3.29, 95% confidence interval (CI): 1.48-7.31, p=0.003] and long lesion length, defined as lesion length >28 mm (OR=1.88, 95% CI: 1.02-3.46, p=0.042) were independent predictors of long-term critical events. CONCLUSION: This retrospective analysis fails to demonstrate that post-DES implantation angiographic LL between 0.3 and 0.6 mm is protective against future critical events.
Adult
;
Aged
;
Angiography/*methods
;
Coronary Artery Disease/*surgery
;
Coronary Vessels/surgery
;
*Drug-Eluting Stents
;
Female
;
Follow-Up Studies
;
Humans
;
Kidney Failure, Chronic/complications
;
Male
;
Middle Aged
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Multivariate Analysis
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Odds Ratio
;
Percutaneous Coronary Intervention/methods
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Prosthesis Failure
;
Retrospective Studies
;
Time Factors
;
Treatment Outcome
4.Dorsal-Plantar Loop Technique Using Chronic Total Occlusion Devices via Anterior Tibial Artery.
Seunghwan KIM ; Donghoon CHOI ; Sanghoon SHIN ; Dong Ho SHIN ; Jung Sun KIM ; Byeong Keuk KIM ; Young Guk KO ; Myeong Ki HONG ; Yangsoo JANG
Yonsei Medical Journal 2013;54(2):534-537
The effectiveness of below-the-knee (BTK) percutaneous transluminal angioplasty to obtain successful revascularization in patients with critical limb ischemia has been well established, and many of these patients with chronic lower-extremity disease have been treated by endovascular intervention as the firstline treatment. Dorsal-plantaer loop technique is one of the new BTK interventional techiniques, and includes recanalization of both pedal and plantar arteries and their anatomical anastomoses. This method generally needs two approaches simultaneously, including antegrade and retrograde. In this report, however, we describe a case in which dorsal-plantar loop technique with only one antegrade approach, using chronic total occlusion devices via anterior tibial artery, was used to successfully recanalize BTK arteries. We think that this new technique, which may represent a safe and feasible endovascular option to avoid more invasive, time-consuming, and riskier surgical procedures, especially in end-stage renal disease and diabetes, should be considered whenever the foot is at risk, and results of above-the-ankle percutaneous transluminal angioplasty remain unsatisfactory or insufficient to achieve limb salvage.
Angioplasty, Balloon/*methods
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Diabetic Foot/*therapy
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Humans
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Male
;
Middle Aged
;
Peripheral Arterial Disease/*therapy
;
*Tibial Arteries
5.Impact of Statin Treatment on Strut Coverage after Drug-Eluting Stent Implantation.
Yongsung SUH ; Byeong Keuk KIM ; Dong Ho SHIN ; Jung Sun KIM ; Young Guk KO ; Donghoon CHOI ; Yangsoo JANG ; Myeong Ki HONG
Yonsei Medical Journal 2015;56(1):45-52
PURPOSE: To evaluate the effect of statin treatment on strut coverage after drug-eluting stent (DES) implantation. MATERIALS AND METHODS: In this study, 60 patients were randomly assigned to undergo sirolimus-eluting stent (SES) or biolimus-eluting stent (BES) implantation, after which patients were randomly treated with pitavastatin 2 mg or pravastatin 20 mg for 6 months. The degree of strut coverage was assessed by 6-month follow-up optical coherence tomography, which was performed in 52 DES-implanted patients. RESULTS: The percentages of uncovered struts were 19.4+/-14.7% in pitavastatin-treated patients (n=25) and 19.1+/-15.2% in pravastatin-treated patients (n=27; p=0.927). A lower percentage of uncovered struts was significantly correlated with a lower follow-up low-density lipoprotein (LDL) cholesterol level (r=0.486; p=0.009) and a greater decline of the LDL cholesterol level (r=-0.456; p=0.015) in SES-implanted patients, but not in BES-implanted patients. In SES-implanted patients, the percentage of uncovered struts was significantly lower among those with LDL cholesterol levels of less than 70 mg/dL after 6 months of follow-up (p=0.025), but no significant difference in this variable according to the follow-up LDL cholesterol level was noted among BES-implanted patients (p=0.971). CONCLUSION: Lower follow-up LDL cholesterol levels, especially those less than 70 mg/dL, might have a protective effect against delayed strut coverage after DES implantation. This vascular healing effect of lower LDL cholesterol levels could differ according to the DES type.
Adult
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Coronary Angiography
;
*Drug-Eluting Stents
;
Female
;
Follow-Up Studies
;
Humans
;
Hydroxymethylglutaryl-CoA Reductase Inhibitors/*therapeutic use
;
Lipoproteins, LDL/blood
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Male
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Middle Aged
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Pravastatin/therapeutic use
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*Prosthesis Implantation
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Quinolines/therapeutic use
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Tomography, Optical Coherence
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Treatment Outcome
6.Comparison of Full Lesion Coverage versus Spot Drug-Eluting Stent Implantation for Coronary Artery Stenoses.
Seunghwan KIM ; Kyeong Ho YUN ; Woong Chol KANG ; Dong Ho SHIN ; Jung Sun KIM ; Byeong Keuk KIM ; Young Guk KO ; Donghoon CHOI ; Yangsoo JANG ; Myeong Ki HONG
Yonsei Medical Journal 2014;55(3):584-591
PURPOSE: The aim of this study was to evaluate and compare the long-term clinical outcomes of the spot drug-eluting stent (DES) implantation strategy, which is used to minimize implanted stent length and the number of stents, versus full lesion coverage for treatment of coronary artery stenoses. MATERIALS AND METHODS: We evaluated 1-year clinical outcomes of 1619 patients with stent implantation for a single coronary lesion. They were divided into two groups: those treated by full lesion coverage (n=1200) and those treated with the spot stenting strategy (n=419). The combined occurrence of 1-year target vessel failure (TVF), including cardiac death, target-vessel related myocardial infarction, or ischemia-driven target-vessel revascularization was evaluated. RESULTS: The spot DES implantation group had a shorter stent length (23.14+/-9.70 mm vs. 25.44+/-13.24 mm, respectively; p<0.001) and a fewer number of stents (1.09+/-0.30 vs. 1.16+/-0.41, respectively; p<0.001), even though the average lesion length was similar to the full lesion coverage group (21.36+/-10.30 mm vs. 20.58+/-10.97 mm, respectively; p=0.206). Spot DES implantation was superior to full DES coverage with respect to 1-year TVF (1.4% vs. 3.3%, p=0.044). Cox proportional hazard model analysis showed that the risk for 1-year TVF was almost 60% lower among patients who received spot DESs compared to those who received full DES coverage after adjustment for other risk factors (HR=0.40, 95% confidence interval=0.17-0.98; p=0.046). CONCLUSION: Minimizing stent length and the number of stents with overlapping by spot DES implantation may result in reduced rates of 1-year TVF, compared with full DES coverage.
Aged
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Coronary Stenosis/*surgery
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*Drug-Eluting Stents
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Female
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Humans
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Male
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Middle Aged
;
Percutaneous Coronary Intervention/*methods
7.Clinical Effect of Immediate Cooling on Superficial Second Degree Thermal Burns.
Hii Sun JEONG ; Hye Kyung LEE ; Hyung Suk KIM ; Keuk Shun SHIN
Journal of the Korean Society of Traumatology 2009;22(2):227-232
PURPOSE: Numerous experimental studies have shown the benefits of treating thermal burns by cooling. Nevertheless, few studies have shown the clinical effect of cooling therapy on thermal burns. This study aimed to identify the clinical effect of immediate cooling therapy. METHODS: The research was conducted as a retrospective, case-control study. All patients had thermal injuries characterized as a superficial second-degree burn. In the cooling group, 14 patients had first-aid cooling therapy delivered by either parents, caregivers, general practitioners, local hospitals, and/or Myongji hospital. Included in the study were 22 control patients who were not treated with any cooling therapies. Other clinical factors, such as age, sex, cause of burn injury, and burn area (Total Body Surface Area %), were taken into consideration. The duration of treatment was defined as the time from the occurrence of the injury to the presence of complete re-epithelialization, as confirmed by two surgeons. RESULTS: The duration of treatment in the cooling group was significantly less than that the control group (p < 0.05). CONCLUSION: Cooling therapy as an initial emergent treatment is clinically effective for superficial seconddegree burn injuries.
Body Surface Area
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Burns
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Caregivers
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Case-Control Studies
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General Practitioners
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Humans
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Parents
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Re-Epithelialization
;
Retrospective Studies
8.The Effect of Sex and Anthropometry on Clinical Outcomes in Patients Undergoing Percutaneous Coronary Intervention for Complex Coronary Lesions.
Seung Yul LEE ; Dong Ho SHIN ; Jung Sun KIM ; Byeong Keuk KIM ; Young Guk KO ; Donghoon CHOI ; Yangsoo JANG ; Myeong Ki HONG
Yonsei Medical Journal 2017;58(2):296-304
PURPOSE: To evaluate the effects of sex and anthropometry on clinical outcomes in patients who underwent percutaneous coronary intervention (PCI). MATERIALS AND METHODS: From three randomized trials (REal Safety and Efficacy of 3-month dual antiplatelet Therapy following Endeavor zotarolimus-eluting stent implantation, Impact of intraVascular UltraSound guidance on outcomes of Xience Prime stents in Long lesions, Chronic Total Occlusion InterVention with drUg-eluting Stents), we compared 333 pairs of men and women matched by propensity scores, all of whom underwent intravascular ultrasound (IVUS)-guided PCI for complex lesions. RESULTS: For 12 months, the incidence of adverse cardiac events, defined as the composite of cardiac death, target lesion–related myocardial infarction, and target lesion revascularization, was not different between women and men (2.4% vs. 2.4%, p=0.939). Using multivariable Cox's regression analysis, post-intervention minimum lumen area [MLA; hazard ratio (HR)=0.620, 95% confidence interval (CI)=0.423–0.909, p=0.014] by IVUS was a predictor of adverse cardiac events. Height on anthropometry and lesions with chronic total occlusion were significantly related to post-intervention MLA. However, female sex was not independently associated with post-intervention MLA. In an age and sex-adjusted model, patients in the low tertile of height exhibited a greater risk for adverse cardiac events than those in the high tertile of height (HR=6.391, 95% CI=1.160–35.206, p=0.033). CONCLUSION: Sex does not affect clinical outcomes after PCI for complex lesions. PCI outcomes, however, may be adversely affected by height.
Anthropometry*
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Coronary Artery Disease
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Death
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Female
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Humans
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Incidence
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Male
;
Myocardial Infarction
;
Percutaneous Coronary Intervention*
;
Propensity Score
;
Stents
;
Ultrasonography
9.Nobori-Biolimus-Eluting Stents versus Resolute Zotarolimus-Eluting Stents in Patients Undergoing Coronary Intervention: A Propensity Score Matching.
Ayman TANTAWY ; Chul Min AHN ; Dong Ho SHIN ; Jung Sun KIM ; Byeong Keuk KIM ; Young Guk KO ; Donghoon CHOI ; Yangsoo JANG ; Meong Ki HONG
Yonsei Medical Journal 2017;58(2):290-295
PURPOSE: To compare the 1-year outcomes of a durable polymer Zotarolimus-eluting stent (ZES) versus a biodegradable polymer Biolimus-eluting stent (BES) in patients undergoing percutaneous coronary intervention. MATERIALS AND METHODS: A total of 2083 patients from 2 different registries, 1125 treated with BES in NOBORI registry and 858 received ZES in CONSTANT registry were included in this study. Clinical outcomes were compared with the use of propensity score matching (PSM). The primary endpoint was a composite of major adverse cardiovascular and cerebrovascular events (MACCEs) including cardiac death, myocardial infarction, clinically driven target lesion revascularization and stroke. Secondary end points were individual components of MACCEs as well as the incidence of stent thrombosis at 1-year follow-up. RESULTS: After PSM, 699 matched pairs of patients (n=1398) showed no significant difference between BES and ZES in the risk of composite MACCEs at 1 year (2.6% vs. 1.7%; p=0.36). Cardiac death was not statistically different between groups (0.7% vs. 0.4%, p=0.73). Target lesion revascularization rate was also similar between BES and ZES (1.1% vs. 0.7%, p=0.579). Non-Q wave myocardial infarction, as well as target-vessel revascularization rate, was similar between the two groups (0.14% for BES and 0.72% for ZES). Both stent types were excellent with no cases of stent thrombosis and rate of Q wave myocardial infarction reported during the follow-up period. CONCLUSION: In this cohort of patients treated with BES or ZES, the rate of MACCEs at 1 year was low and significantly not different between both groups.
Cohort Studies
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Death
;
Drug-Eluting Stents
;
Follow-Up Studies
;
Humans
;
Incidence
;
Myocardial Infarction
;
Percutaneous Coronary Intervention
;
Polymers
;
Propensity Score*
;
Registries
;
Stents*
;
Stroke
;
Thrombosis
10.Optical Coherence Tomographic Observation of Morphological Features of Neointimal Tissue after Drug-Eluting Stent Implantation.
Seung Yul LEE ; Dong Ho SHIN ; Jung Sun KIM ; Byeong Keuk KIM ; Young Guk KO ; Donghoon CHOI ; Yangsoo JANG ; Myeong Ki HONG
Yonsei Medical Journal 2014;55(4):944-952
PURPOSE: The impacts of different time courses and the degree of neointimal growth on neointimal morphology have not yet been sufficiently investigated. Therefore, we evaluated the morphological features of neointimal tissue after drug-eluting stent (DES) implantation using optical coherence tomography (OCT). MATERIALS AND METHODS: The morphological features of neointimal tissue in stented segments with a maximal percentage of cross-sectional area (CSA) stenosis of neointima were evaluated in 507 DES-treated lesions with >100 microm mean neointimal thickness on follow-up OCT. Neointimal tissue was categorized as homogeneous, heterogeneous, layered, or neoatherosclerotic. RESULTS: In lesions with <50% of neointimal CSA stenosis, homogeneous neointima (68.2%) was predominant, followed by heterogeneous neointima (14.1%) and layered neointima (14.1%). In lesions with > or =50% of neointimal CSA stenosis, layered neointima was most frequently observed (68.3%), followed by neoatherosclerotic neointima (25.2%). In subgroup analysis of lesions with > or =50% of neointimal CSA stenosis, 89.5% of the lesions with a stent age <30 months were layered neointima, while 62.3% of the lesions with a stent age > or =30 months were neoatherosclerotic neointima. CONCLUSION: This study suggests that the OCT-detected morphology of DES neointimal tissue was different according to the follow-up time course and degree of neointimal hyperplasia.
Aged
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Coronary Artery Disease/*surgery
;
*Drug-Eluting Stents
;
Female
;
Humans
;
Male
;
Middle Aged
;
Neointima/*diagnosis
;
Tomography, Optical Coherence/*methods