2.A case of aplasia cutis congenita associated with epidermolysis bullosa.
Seung Jun YOUN ; Gang Youl BAE ; Woo Sik CHUNG ; Kil Seo KIM ; Chul Hyon ANN
Journal of the Korean Pediatric Society 1993;36(8):1171-1177
Alpasia cutis congenita is an anomaly characterized by absence of localized areas of the integument. The most common type of aplasia cutis congenita is Aplasia cutis congenita limited to the scalp, although other areas of the body may also be involved. We experienced a case of aplasia cutis congenita in a male newborn infant. The skin defects were extensive with symmetrical involvement of lower extremities. The multiple bullae were found on the both fingers and toes. No similar conditions and other associated congeital anomalies were found in the family membes of this particular case. The light microscopic examinaton of the denuded skin areas how absence of epidemis and the demis contain atrophic and hypoplastic adnexa. The bullae have a split within the dermis below lamina densa on electron microscopy. The skin defects were healed by supportive therapy for 4weeks.
Dermis
;
Ectodermal Dysplasia*
;
Epidermolysis Bullosa*
;
Fingers
;
Humans
;
Infant, Newborn
;
Lower Extremity
;
Male
;
Microscopy, Electron
;
Scalp
;
Skin
;
Toes
3.Coverage of the soft tissue defect of the calcaneal area, exposed achilles tendon.
Seung Ho PARK ; Youn Kyu CHUNG ; Hye Kyung LEE ; Dong Kyun RAH
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1991;18(5):952-961
No abstract available.
Achilles Tendon*
4.Coverage of the soft tissue defect of the calcaneal area, exposed achilles tendon.
Seung Ho PARK ; Youn Kyu CHUNG ; Hye Kyung LEE ; Dong Kyun RAH
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1991;18(5):952-961
No abstract available.
Achilles Tendon*
5.Usefulness of Contrast-Enhanced Magnetic Resonance Imaging in the Prediction of Myocardial Viability after Acute Myocardial Infarction.
Seung Eun JUNG ; Ho Joong YOUN ; Wook Sung CHUNG ; Seong Tai HAHN ; Soon Jo HONG ; Choon Yeol KIM
Korean Circulation Journal 2000;30(10):1257-1263
PURPOSE: The aim of this study was to evaluate the utility of contrast-enhanced MRI with first-pass and delayed images in prediction of myocardial viability after acute myocardial infarction. MATERIALS AND METHODS: Ten patients (M:F=:4, mean age =6 5 years) with acute myocardial infarction underwent first-pass image after bolus injection of gadolinium (one image/sec for 120sec)and delayed image (7 2 minutes later). According to 60 segments on midventricular level, the assessment of MRI were concerned about location of lesion, depth of lesion, enhancement on first-pass image and enhancement pattern on delayed image. MRI findings were compared with wall motion on resting echocardiography and stress or follow-up echocardiography. RESULTS: 1) MRI findings were classified into 4 types: normal enhancement on first-pass and delayed images (type 1), normal enhancement on first-pass image and nontransmural hyperenhancement on delayed image (type 2), non-transmural enhancing defect on first-pass image and transmural enhancement with endocardial non-enhancing defect on delayed image (type 3), and transmural enhancing defect on first-pass image and transmural hyperenhancement on delayed image (type 4).2) Type 2 suggested viable myocardium and type 3 had high porbability of viability. Type was compatible with non-viable myocardium. CONCLUSION: Enhancing defect on first-pass image and involving thickness on both the first-pass image and delayed image in contrast enhanced MRI may predict myocardial viability.
Echocardiography
;
Follow-Up Studies
;
Gadolinium
;
Humans
;
Magnetic Resonance Imaging*
;
Myocardial Infarction*
;
Myocardium
6.The Diagnosis and Management of Hyperthyroidism Consensus - Report of the Korean Thyroid Association.
Ka Hee YI ; Jae Hoon MOON ; In Ju KIM ; Hee Seung BOM ; Jaetae LEE ; Woong Youn CHUNG ; Jae Hoon CHUNG ; Young Kee SHONG
Journal of Korean Thyroid Association 2013;6(1):1-11
No abstract available.
Consensus
;
Hyperthyroidism
;
Thyroid Gland
7.Soft and Hard Tissue Augmentation with/without Polydeoxyribonucleotide for Horizontal Ridge Deficiency: A Pilot Study in a Dog Model
Hyunwoo LIM ; Yeek HERR ; Jong-Hyuk CHUNG ; Seung-Yun SHIN ; Seung-Il SHIN ; Ji-Youn HONG ; Hyun-Chang LIM
Journal of Korean Dental Science 2024;17(2):53-63
Purpose:
To investigate the effects of simultaneous soft and hard tissue augmentation and the addition of polydeoxyribonucleotide (PDRN) on regenerative outcomes.
Materials and Methods:
In five mongrel dogs, chronic ridge defects were established in both mandibles. Six implants were placed in the mandible, producing buccal dehiscence defects. The implants were randomly allocated to one of the following groups: 1) control: no treatment; 2) GBR: guided bone regeneration (GBR) only; 3) GBR/PDRN: GBR+PDRN application to bone substitute particles; 4) GBR/CTG: GBR+connective tissue grafting (CTG);5) GBR/VCMX: GBR+soft tissue augmentation using volume stable collagen matrix (VCMX); and 6) group GBR/VCMX/ PDRN: GBR+VCMX soaked with PDRN. The healing abutments were connected to the implants to provide additional room for tissue regeneration. Submerged healing was achieved. The animals were euthanized after four months. Histological and histomorphometric analyses were then performed.
Results:
Healing abutments were gradually exposed during the healing period. Histologically, minimal new bone formation was observed in the dehiscence defects. No specific differences were found between the groups regarding collagen fiber orientation and density in the augmented area. No traces of CTG or VCMX were detected. Histomorphometrically, the mean tissue thickness was greater in the control group than in the other groups above the implant shoulder (IS). Below the IS level, the CTG and PDRN groups exhibited more favorable tissue thickness than the other groups.
Conclusion
Failure of submerged healing after tissue augmentation deteriorated the tissue contour. PDRN appears to have a positive effect on soft tissues.
8.Predictability of the Survival using Prognostic Index (PI) of Patients with Epithelial Ovarian Cancer.
Sam Hyun CHO ; Seung Ryong KIM ; Hyang MOON ; Jai Auk LEE ; Youn Yeoung HWANG ; Young Jin MOON ; Joong Sik SHIN ; Kyung Tal KIM ; Chang Young CHUNG
Korean Journal of Gynecologic Oncology and Colposcopy 1999;10(2):173-182
OBJECTIVES: To predict of the survival of patients with epithelial ovarian cancer, multivariable analysis was done to identify variables with independent prognostic factors. Based on materials from 191 clinical trials performed by Department of Obstetrics and Gynecology, Hanyang University Hospital, we constructed a prognostic index (Pp with considerable predictive power for long-term survival of patients with epithelial ovatian cancer treated with cis-platin based combination chemotherapy, METHODS: On identifying variables with independent prognostic value, statistical analysis were performed with clinicopathologic variables including age, FIGO stage, histologic subtype, histologic grade, residual tumor, presence of ascites, pretreatment levels of hemoglobin, platelet, and tumor markers(CA 125, CA 19-9). We also analyzed biological variables using immunohistochemical staining for GST-pie (glutathione-s-transferase-pie), p-glycoprotein, and MT (metallothinein) as a drug resistance and uPA (urokinase type plasminogen activator), PAI-1 (plasminogen activator inhibitor-l), nm23 (nonmetastatic gene 23) as a tumor invasion and metastasis. In addition, univariable analysis was performed followed by multivariable analysis using Coxs proportional hazards model to identify variables predictive of poor prognosis. Prognostic index (PI) was calculated based on sum of individual beta-coefficient of the most important independent prognostic value. RESULTS: With univariable analysis, age, FIGO stage, histologic grade, histologic subtype, presence of ascites, residual tumor, initial value of CA 125, MT, uPA, and PAI-1 were found to predict of patients survival. In the multivariable analysis and proportional hazard model, the pretreatment characteristics needed for the calculation of the PI are the age, the site of metastases expressed as stage, the histologic subtype, the size of residual tumor, the histological grade, and the presence of ascites. In the subgroup comprising the 10% of the patients with the best prognosis, 5-year survival rate was 78.9%, whereas in the subgmup comprising the 10% with the poorest prognosis, 5-year survival rate was 7.1%, which illustrates the large variability of the prognosis among patients. CONCLUSIONS: The PI was found to retain its value after response was achieved. The information provided by the PI can be expected to be useful in treatment planning and the proper stratification of patients in clinical trials.
Ascites
;
Blood Platelets
;
Drug Resistance
;
Drug Therapy, Combination
;
Gynecology
;
Humans
;
Neoplasm Metastasis
;
Neoplasm, Residual
;
Obstetrics
;
Ovarian Neoplasms*
;
P-Glycoprotein
;
Plasminogen
;
Plasminogen Activator Inhibitor 1
;
Prognosis
;
Proportional Hazards Models
;
Survival Rate
9.Apo-1/Fas (CD95) Gene Polymorphism in Korean Knee Osteoarthritis Patients.
Seung Jae HONG ; Hyung In YANG ; Sung Vin YIM ; Joo Ho CHUNG ; Young Ok JUNG ; Ho Youn KIM
Immune Network 2003;3(2):145-149
BACKGROUND: Apoptosis has been implicated in pathogenesis of various disease. Apo-1/Fas (CD95) is one of the main pathway of apoptosis. To examine the possible relationship between Apo-1/Fas (CD95) and primary knee osteoarthritis, MvaI restriction length polymorphism (RFLP) in human Apo-1/Fas (CD95) gene was assessed. METHODS: Genotype and allele frequencies in promoter region in the Apo-1/Fas (CD95) gene were studied by PCR-RFLP in 226 Korean controls and 148 Korean patients with primary knee osteoarthritis. RESULTS: No statistically significant difference in the genotypic distribution and allelic frequencies was found between the control and the knee oateoarthritis patients. But in the severe grade (grade 3, 4) Kellgren-Lawrence score patients, the frequency of MvaI*1 (G) allele was significantly decreased (P=0.0392) and the of MvaI*2 (A) allele frequency was significantly increased (P=0.0473) compared to the normal controls. CONCLUSION: Apo-1/Fas (CD95) gene polymorphism is a part a determinant factor of severity in knee osteoarthritis, the patients with MvaI*2 (A) allele is more severe radiologic progression. Further substantiation studies are needed in larger patient samples and various other apoptosis related genes to elucidate the mechanism of osteoarthritis, including the Fas ligand gene analysis.
Alleles
;
Apoptosis
;
Fas Ligand Protein
;
Gene Frequency
;
Genotype
;
Humans
;
Knee*
;
Osteoarthritis
;
Osteoarthritis, Knee*
;
Promoter Regions, Genetic
10.Acute traumatic injury and delayed airway obstruction after the use of a GlideScope in a patient with a difficult airway: A case report.
Seung Hyun SONG ; Won Hyung LEE ; WooSuk CHUNG ; Ji Yong LEE ; Misun YOUN ANN
Anesthesia and Pain Medicine 2017;12(2):187-190
Endotracheal intubation sometimes leads to complications, particularly in patients with anticipated difficult intubation. The GlideScope is preferred because of its high success rate in cases with anticipated difficult intubation. However, complications during the process have been reported. Most minor injuries can be treated after early detection. However, treatment can be difficult if complications occur later. We report a patient who underwent an emergency tracheostomy due to a delayed airway obstruction caused by pharyngeal wall bleeding during intubation with a GlideScope.
Airway Management
;
Airway Obstruction*
;
Emergencies
;
Hemorrhage
;
Humans
;
Intubation
;
Intubation, Intratracheal
;
Tracheostomy