1.Meconium as an Iron Source for the Growth of Staphylococcus Aureus in Amniotic Fluid.
Sung Heui SHIN ; Nam Woong YANG ; Myung Hee LEE ; Eun Woo LEE ; Eun Suk YANG ; Sang Kee PARK ; Yong LIM
Korean Journal of Perinatology 2000;11(3):335-342
No abstract available.
Amniotic Fluid*
;
Female
;
Iron*
;
Meconium*
;
Staphylococcus aureus*
;
Staphylococcus*
2.Effect of Iron-Uptake systems on the Growth of Staphylococcus aureus in Amniotic Fluid.
Sung Heui SHIN ; Jung Soo CHANG ; Nam Woong YANG ; Myung Hee LEE ; Eun Suk YANG ; Sang Kee PARK ; Yong LIM
Korean Journal of Perinatology 2000;11(3):306-314
No abstract available.
Amniotic Fluid*
;
Female
;
Staphylococcus aureus*
;
Staphylococcus*
3.Anophthalmic Conjunctival Sac Reconstruction using Acellular Dermal Allograft.
Na Young LEE ; Woong Chul CHOI ; Suk Woo YANG
Journal of the Korean Ophthalmological Society 2006;47(5):703-708
PURPOSE: To investigate the clinical results and safety of the acellular dermal allograft (SureDerm(R), Hans Biomed co., Korea) as a new spacer graft in anophthalmic socket contracture. METHODS: We grafted SureDerm(R) as the replacing spacer in 8 patients for the treatment of anophthalmic socket contracture. Under local anesthesia, SureDerm(R) was sutured at the levator aponeurosis and upper margin of the tarsus using 6-0 Vicryl in the upper lid. In the lower lid, SureDerm(R) was sutured at the tarsal conjunctiva and lower margin of the incised conjunctiva. The patients were followed-up individually for 6 to 15 months. RESULTS Surgical results in all 8 eyelids (6 lower lids, 2 upper lids) were satisfactory. The grafted SureDerm(R) survived in all patients with little contracture. There were no other complications such as infection, rejection, or exposure. CONCLUSIONS: We consider SureDerm(R) a good replacing spacer material for the treatment of anophthalmic socket contracture.
Allografts*
;
Anesthesia, Local
;
Ankle
;
Conjunctiva
;
Contracture
;
Eyelids
;
Humans
;
Polyglactin 910
;
Transplants
4.Rapid, Two-Stage Arterial Switch for Transposition of the Great Arteries with Intact Ventricular Septum Beyond the Neonatal Period: A Case Report.
Hyun Woong YANG ; Jong Bum CHOI ; Hyang Suk YOON
The Korean Journal of Thoracic and Cardiovascular Surgery 1997;30(11):1121-1124
This is a report of a successful, rapid two-stage arterial switch operation in an infant with dextrotransposition of great arteries with an intact ventricular septum beyond the appropriate time for arterial switch operation. A 4-month-old female infant was admitted due to severe cyanosis, respiratory insufficiency, and frequent diarrhea secondary to ischemic colitis. Echocardiographic examination presented marked leftward deviation of the interventricular septum, and left and right ventricular pressures as measured by cardiac catheterization were 40/4 mm Hg and 85/2 mm Hg, respectively. Fifteen days after a preparatory operation (pulmonary artery band with modified right Blalock-Taussig shunt), left ventricular-right ventricular systolic pressure ratio increased to 105/90. Arterial switch operation associated with the division of the right Blalock-Taussig shunt and the removal of pulmonary artery band was performed. After the operation, the infant showed normal cardiac function with no postoperative complication.
Arteries*
;
Blood Pressure
;
Cardiac Catheterization
;
Cardiac Catheters
;
Colitis, Ischemic
;
Cyanosis
;
Diarrhea
;
Echocardiography
;
Female
;
Humans
;
Infant
;
Postoperative Complications
;
Pulmonary Artery
;
Respiratory Insufficiency
;
Ventricular Pressure
;
Ventricular Septum*
5.The Relation between Nasal Cavity Size and Success Rate in Endonasal Dacryocystorhinostomy.
Dong Peal LEE ; Suk Woo YANG ; Woong Chul CHOI
Journal of the Korean Ophthalmological Society 2000;41(5):1118-1123
We studied whether the structure and size of nasal cavity around osteotomy site had an influence on the success rate of endoscopic endonasal dacryocystorhinostomy [DCR]. Endoscopic endonasal DCR was performed on 80 eyes of 72 patients who had obstruction of nasolacrimal system.We graded nasal cavity around osteotomy site according to the diameter of drill which could pass[grade I:7 mmdrill can pass, grade II:5 mmdrill can pass, grade III:3 mmdrill can pass, grade IV:3 mmdrill cannot pass].The primary success rate is 70%[56 eyes] and final success rate is 81.3%[65 eyes]after secondary operation was perfomed on 14 eyes of 24 failed eyes in primary operation.Primary success rate was 78.8%[41/52 eyes]and 53.6%[15/28 eyes]in grade I-II and grade III-IV, respectively.Final success rate was 86.5%[45/52 eyes]and 71.4%[20/28 eyes]in grade I-II and grade III-IV, respectively.The difference of success rates according to nasal cavity size is stastically significant[P<0.05] and the relation of nasal septum deviation to small nasal cavity is stastically significant[P<0.05].We found canalicular obstruciton in 5 of 14 eyes during secondary operation which was not found in primary speration, and it was suspected to have been caused by mechanical trauma to canalicular system during operation.
Dacryocystorhinostomy*
;
Humans
;
Nasal Cavity*
;
Nasal Septum
;
Osteotomy
6.A case of small intestinal obstruction due to phytobezoar, revealed after operation in elderly.
Jong Dae BONG ; Sang Hyuk KWAK ; Tae Woong LEE ; Hyun Seung YANG ; Hong Suk RHU ; Kang Suk KOH
Korean Journal of Medicine 2005;69(5):536-540
The major causes of small bowel obstruction are postoperative adhesion, hernia, intussusception and malignancies. However, in cases of uncommon causes of small bowel obstruction, surgeons are in a dilemma because the preoperative diagnosis and making a decision to operate are frequently difficult and delayed. Phytobezoars are unusual cause of small bowel obstruction. They are mostly due to ingestion of stringent immature fruits following gastric surgery. They are usually formed in stomach and do not migrate to the other intestinal tract, but can lead to the serious complication of acute small bowel obstruction. We are reporting a case of acute small bowel obstruction due to phytobezoar about 2x2x3 cm3 size in a 90 year old female.
Aged*
;
Aged, 80 and over
;
Bezoars
;
Diagnosis
;
Eating
;
Female
;
Fruit
;
Hernia
;
Humans
;
Intestinal Obstruction*
;
Intussusception
;
Stomach
7.Clinical Analysis of 1,068 Cases of Mid-trimester Genetic Amniocentesis.
Hyun Hee PARK ; Seong Cheon YANG ; Haeng Soo KIM ; Jeong In YANG ; Joon Hwan OH ; Hyun Woong KANG ; Hyun Joo KIM ; Yeon Jong JOO ; Kie Suk OH
Korean Journal of Obstetrics and Gynecology 1999;42(10):2306-2314
OBJECTIVES: The objective of this study is to analyze 1,068 cases of prenatal genetic amniocentesis and to compare the results with reported studies. METHOD: We analyzed 1,068 cases of midtrimester prenatal genetic amniocenteses from September 1994 to February 1999, and investigated the fetal chromosomal abnormality, obstetric outcomes and complications by the indications of genetic amniocentesis and prophylactic antibiotic use at the Department of Obstetrics and Gynecology, Ajou University School of Medicine. RESULTS: Abnormal maternal serum markers were the most common indication of amniocentesis (57.7%) and the most common age distribution was 25-29 years (39.2%). One case of early amniocentesis (14 gestational weeks) was performed. The overall incidence of chromosomal aberration was 5.2% (56/1,068), of which there were 28 cases (50.0%; 28/56) of numerical aberrations and 28 cases (50.0%; 28/56) of structural aberrations. There were 50 cases (4.7%) of autosomal chromosomal aberrations and 6 cases (0.6%) of sex chromosomal aberrations. The pregnancy outcome was full-term delivery in 86.5%, preterm delivery in 7.6%, termination of pregnancy in 4.0%. There were no cases of serious complications including fetal death except for a case of self-limited amniotic fluid leakage(high leakage) in which the pregnancy was maintained. There were no significant differences between prophylactic antibiotics user group and non-user group in obstetric complications and outcomes. CONCLUSION: We could confirm that the trend in the indication of genetic amniocentesis had changed from advanced maternal age(35 year-old) toward abnormal maternal serum marker(triple test), and we recognized the importance of genetic amniocentesis according to the various antenatal screening tests of maternal serum marker, antenatal ultrasound, past history of fetal anomaly or family history of fetal chromosomal anomaly in the younger age groups(< 35 year-old) that are involved in more than half of the chromosomal anomaly. Further study will be needed to elucidate the efficacy of using prophylactic antibiotics in amniocentesis.
Age Distribution
;
Amniocentesis*
;
Amniotic Fluid
;
Anti-Bacterial Agents
;
Biomarkers
;
Chromosome Aberrations
;
Female
;
Fetal Death
;
Gynecology
;
Humans
;
Incidence
;
Obstetrics
;
Pregnancy
;
Pregnancy Outcome
;
Pregnancy Trimester, Second
;
Prenatal Diagnosis
;
Ultrasonography
8.A case of Finnish Type of Congenital Nephrotic Syndrome.
Jeong Sik MIN ; Yang Kook SHON ; Soo Woong LEE ; Suk Chul KANG ; Yong Koo PARK ; Moon Ho YANG
Journal of the Korean Pediatric Society 1982;25(2):175-182
The Finnish type of Congenital Nephrotic Syndrome is characterized by large placenta, early manifestation, growth and developmental delay and resistance to treatment. Authors experienced a case of characteristic Finnish type of Congenital Nephrotic Syndrome in a girl, who was admitted to the Pediatric Department of KHUH at 2 1/1 months of age because of generalized edema and abdominal distension and died of pneumonia at 5 1/2 months of age. The diagnosis was made by birth history, clinical manifestation, laboratory findings and finally by the autopsy findings, Literatures are reviewed briefly.
Autopsy
;
Diagnosis
;
Edema
;
Female
;
Growth and Development
;
Humans
;
Nephrotic Syndrome*
;
Placenta
;
Pneumonia
;
Reproductive History
9.Relation of Postoperative Complication and Duration of Artificial Ventilation in Infants with Large Ventricular Septal Defect.
Jeong Yeol SONG ; Hyang Suk YOON ; Hyun Woong YANG ; Jong Bum CHOI ; Soon Ho CHOI
Journal of the Korean Pediatric Society 1998;41(5):633-639
PURPOSE: The importance of postoperative management of those who have undergone intracardiac repair for congenital heart diseases has increased in recent years. In this study, we investigated postoperative complications and their relations to preoperative age or duration of the intubation and artificial ventilation in infants with large symptomatic ventricular septal defect. METHODS: Between January, 1993 and December, 1996, sixty infants underwent primary closure of a ventricular septal defect (VSD). The patients were divided into two groups based on preoperative age : group 1, infants aged 6 month or less (n=40), and group 2, infants aged more than 6 month (n=20). And, another three groups were divided into 3 groups due to the duration of the intubation and artificial ventilation including < 24 hour and 24-48 hour, >48 hour, respectively. We compared the incidence of complications such as infection, respiratory or cardiovascular complications among each group. RESULTS: No specific differences between two age groups were found, but the incidence of right bundle branch block was high in age group of 6 month or less (P<0.05). The incidence of sepsis was high in group of >48 hour (P<0.05). And also, arrhythmias, atelectasis, toxic hepatitis were more frequently observed in the former group. CONCLUSION: These results indicate that early weaning of the artificial ventilation in infants with large symptomatic ventricular septal defect could protect them from development of severe life- threatening infection such as sepsis. We suggest 48 hours or less as the optimal duration of artificial ventilation. Additionally, earlier weaning could provide earlier oral feeding or earlier ambulation, which is improve respiratory homeostasis.
Arrhythmias, Cardiac
;
Bundle-Branch Block
;
Drug-Induced Liver Injury
;
Heart Diseases
;
Heart Septal Defects, Ventricular*
;
Homeostasis
;
Humans
;
Incidence
;
Infant*
;
Intubation
;
Postoperative Complications*
;
Pulmonary Atelectasis
;
Sepsis
;
Ventilation*
;
Walking
;
Weaning
10.Influence of implant-abutment interface design, implant diameter and prosthetic table width on strength of implant-abutment interface: three-dimensional finite element analysis.
Se Woong OH ; Jae Ho YANG ; Sun Hyung LEE ; Jung Suk HAN
The Journal of Korean Academy of Prosthodontics 2003;41(4):393-404
STATEMENT OF PROBLEM: Higher incidence of prosthetic complications such as screw loosening, screw fracture has been reported for posterior single tooth implant. So, there is ongoing research regarding stability of implant-abutment interface. One of those research is increasing the implant diameter and prosthetic table width to improve joint stability. In another part of this research, internal conical type implant-abutment interface was developed and reported joint strength is higher than traditional external hex interface. Purpose. The purpose of this study is to compare stress distribution in single molar implant between external hex butt joint implant and internal conical joint implant when increasing the implant diameter and prosthetic table width : 4mm diameter, 5mm diameter, 5mm diameter/6mm prosthetic table width. MATERIAL AND METHOD: Non-linear finite element models were created and the 3-dimensional finite element analysis was performed to see the distribution of stress when 300N static loading was applied to model at 0., 15., 30.off-axis angle. RESULTS: The following results were obtained: 1. Internal conical joint showed lower tensile stress value than that of external hex butt joint. 2. When off-axis loading was applied, internal conical joint showed more effective stress distribution than external hex butt joint. 3. External hex butt joint showed lower tensile stress value when the implant diameter was increased. 4. Internal conical joint showed lower tensile stress value than external hex butt joint when the implant diameter was increased. 5. Both of these joint mechanism showed lower tensile stress value when the prosthetic table width was increased. CONCLUSION: Internal conical joint showed more effective stress distribution than external hex joint. Increasing implant diameter showed more effective stress distribution than increasing prosthetic table width.
Incidence