1.A case of combined pregnancy following IVF-ET.
Man Chul PARK ; Chi Seok AHN ; Seok Hyun KIM ; Shin Yong MOON ; Jin Yong LEE ; Yoon Seok CHANG
Korean Journal of Obstetrics and Gynecology 1991;34(10):1457-1462
No abstract available.
Pregnancy*
2.Histologic evaluation and removal torque analysis of nano- and microtreated titanium implants in the dogs.
Seok AHN ; Mong Sook VANG ; Hong So YANG ; Sang Won PARK ; Hyun Pil LIM
The Journal of Advanced Prosthodontics 2009;1(2):75-84
STATEMENT OF PROBLEM: A number of studies about the nano-treated surfaces of implants have been conducting along with micro-treated surfaces of implants. PURPOSE: The purpose of this study was to get information for the clinical use of nano-treated surfaces compared with micro-treated surfaces by measuring removal torque and analyzing histological characteristics after the placement of various surface-treated implants on femurs of dogs. MATERIAL AND METHODS: Machined surface implants were used as a control group. 4 nano-treated surface implants and 3 micro-treated surface implants [resorbable blast media surface (RBM), sandblast and acid-etched surface (SAE), anodized RBM surface] were used as experimental groups. Removal torque values of implants were measured respectively and the histological analyses were conducted on both 4weeks and 8weeks after implant surgery. The surfaces of removed implants after measuring removal torque values were observed by scanning electron microscopy (SEM) at 8 weeks. RESULTS: 1. Removal torque values of the nano-treated groups were lower than those of micro-treated groups. 2. Removal torque values were similar in the anodized RBM surface groups. 3. On the histological views, there was much of bone formation at 8 weeks, but there was no difference between 4 and 8 weeks, and between the types of implant surfaces as well. CONCLUSION: It is suggested that implant topography is more effective in removal torque test than surface chemistry. To get better clinical result, further studies should be fulfilled on the combined effect of surface topography and chemistry for the implant surface treatments.
Animals
;
Dogs
;
Femur
;
Microscopy, Electron, Scanning
;
Osteogenesis
;
Titanium
;
Torque
3.An Experience with Placement of a Stent-Graft in a Renal Artery Aneurysm via the Brachial Artery: A Case Report.
Mi Hyun PARK ; Byung Seok SHIN ; Moonsang AHN
Journal of the Korean Radiological Society 2005;53(6):417-421
We introduce here our case of a 4-cm, large saccular aneurysm in a patient with right flank pain that was treated by placement of a stent-graft via the left brachial artery. The large renal artery aneurysm was successfully occluded without any permanent sequela, although there were several complications that included intraprocedural renal arterial thrombosis, occlusion of the posterior segmental artery, a small thromboembolism in the left pons and a small arteriovenous fistula in the brachial artery. Stent-graft placement for treatment of renal arterial aneurysm is an effective and safe procedure, but the operator has to be cautious not to induce complications in case of using the brachial arterial approach.
Aneurysm*
;
Arteries
;
Arteriovenous Fistula
;
Brachial Artery*
;
Flank Pain
;
Humans
;
Pons
;
Renal Artery*
;
Thromboembolism
;
Thrombosis
4.A Comparative Sudy of the Lactose, Total Nitrogen, Total Lipid Content of Preform and Term Human Breast Milk.
Korean Journal of Community Nutrition 2003;8(4):584-594
The lactose, total nitrogen and total lipid contents of human breast milk were determined longitudinally after protein and term deliveries. Milk samples were obtained from day 2 to 5, on weeks 1, 2, 4, and 6 after preform (PM: n=24) and term (TM: n=22) deliveries. The lactose contents of PM and TM increased from 5.28 g/dl and 5.93 g/dl at days 2 to 5, to 7.95 g/dl,7.87 g/dl at 6 weeks, respectively. The total nitrogen contents of PM and TM decreased significantly during the first 6 weeks after birth (from 374 to 220 mg/dl versus 382 to 220 mg/dl respectively). However the total lipid contents of the PM and TM increased during the same periods. Significant differences in the total lipid contents between the PM and TM were 2.15 versus 3.27 g/dl at 2 weeks, and 3.26 versus 2.52 g/dl at 6 weeks, respectively. The energy intakes of preform infants was 134.8 kcal/kg/d during the 6 weeks of lactation, which satisfied with energy requirements (85-130 kcal/kg/d) of the preform infants.
Breast*
;
Female
;
Humans*
;
Infant
;
Lactation
;
Lactose*
;
Milk
;
Milk, Human*
;
Nitrogen*
;
Parturition
5.Job Satisfaction, Organizational Commitment and Turnover Intention among Male Nurses.
Min Kweon AHN ; Myung Ha LEE ; Hyun Kyung KIM ; Seok Hee JEONG
Journal of Korean Academy of Nursing Administration 2015;21(2):203-211
PURPOSE: This study aimed to investigate job satisfaction, organizational commitment and turnover intention among male nurses in South Korea. METHODS: Data were collected in May, 2013 and a total of 150 male hospital nurses participated in this study. Job satisfaction, organizational commitment and turnover intention were measured using a structured questionnaire. Collected data were analyzed using SPSS/WIN 20.0 for windows. RESULTS: There were statistically significant correlations between job satisfaction and organizational commitment (r=.74, p<.001), job satisfaction and turnover intention (r=-.56, p<.001), and organizational commitment and turnover intention (r=-.69, p< .001). There was a statistically significant difference in job satisfaction of participants according to education, work unit, and salary. Organizational commitment showed significant difference according to age, education, work unit, and salary. Turnover intention was significantly different according to duration of employment in the hospital, and salary. The most influential factor for turnover intention was organizational commitment (beta=-.69, p<.001). This factor accounted for 47.8% of the variance in turnover intention. CONCLUSION: The results of this study indicate that to reduce turnover intention for men in nursing, it is necessary to increase job satisfaction, and organizational commitment.
Education
;
Employment
;
Humans
;
Intention*
;
Job Satisfaction*
;
Korea
;
Male
;
Nurses, Male*
;
Nursing
;
Surveys and Questionnaires
;
Salaries and Fringe Benefits
6.Quantitative Analysis of p53 Expression in Carcinoma of the Uterine Cervix.
Chi Seok AHN ; Eun Hwan JEONG ; Tae Soo LEE ; Rho Hyun SEONG
Korean Journal of Gynecologic Oncology and Colposcopy 1994;5(3):11-18
This studly was perormed 10 define the role of compulerized quantitative analysis in ewalualion for overexpression of p53 by immunohistochemistry. Total and ladeled cells wers counted automatically using commercially available software for color-image analysis. In 16 uterine cerwical carcinomas, the p53 ladeling index calculted bycomputerized5quantitatiwe analysis was 9.22%+/-8.70% and by visual analysis 5.90+/-6.51%. The present results suggest that the computerized quantitative analysis may be valuadle in objective interetation of immunohistochemical expression of p53 and reliable than conventional ways of visual analysis.
Cervix Uteri*
;
Female
;
Immunohistochemistry
7.The Relationship between Zinc Concentration of Maternal, Umbilical Cord, and Placenta and Birth Weight.
Korean Journal of Community Nutrition 2003;8(6):814-821
The purpose of this study was to assess the maternal zinc status during pregnancy and to evaluate the relationship between the zinc concentration of maternal, umblical cord blood and placental tissue and pregnancy outcomes. Venous blood samples were drawn from 53 pregnant women just before delivery and the cord blood of their newborn babies was collected immediately after birth. In addition, placental tissues were extracted. We investigated the difference in the concentration of zinc in maternal, umbilical cord blood and placental tissue in two gestational age groups (preterm delivery group [PT] and normal term delivery group [NT]) at 34.7 wk and 39.0 wk of mean gestational age, respectively). We also assessed correlations of the zinc concentration of maternal, umbilical cord blood and placental tissue. Lastly, we studied the correlations between the birth weights and the zinc concentration in the maternal, umbilical cord blood and placental tissue. The concentrations of maternal serum zinc and of umbilical cord serum zinc were significantly higher in the PT group (76.9 +/- 37.4 microgram/dl, 101.3 +/- 41.4 microgram/dl) than in those of the NT group (57.8 +/- 22.4 microgram/dl, 80.7 +/- 27.5 microgram/dl), respectively (p < 0.05). The zinc concentration of the umbilical cord blood was significantly higher than that of the maternal blood in both groups (p < 0.05). There was no significant correlation between the gestational age and the serum zinc concentration in the cord or the maternal serum. Our results showed that there was a negative relationship between the birth weight (r = -0.286) and the maternal serum zinc concentration. Despite there not being a significant difference, there was tendency for the highest concentrations of maternal serum zinc to be associated with the lowest birth weights. These findings support a possible relationship between the maternal zinc status and the pregnancy outcome, and suggest that zinc may play a role in the many biological processes involved in the successful outcome of a pregnancy.
Biological Processes
;
Birth Weight*
;
Female
;
Fetal Blood
;
Gestational Age
;
Humans
;
Infant, Newborn
;
Parturition*
;
Placenta*
;
Pregnancy
;
Pregnancy Outcome
;
Pregnant Women
;
Umbilical Cord*
;
Zinc*
8.A Case of Relapsing Polychondritis.
Young Gull KIM ; Jeong Hoon JANG ; Jong Seong AHN ; Kwang Hyun CHO ; Seok Joon PARK
Korean Journal of Dermatology 1999;37(5):676-678
Relapsing polychondritis is a rare inflammatory disorder affecting the cartilaginous structures throughout the body. Although there is no pathognomonic laboratory tests, clinical features, when coupled with histopathologic findings, enable one to make a diagnosis of relapsing polychondritis. A 26-year-old man presented with purplish, swollen, and tender auricles and injected eyes. His symptoms had developed eight months ago and fluctuated irrespective of various medications such as corticosteroids and antibiotics. Histopathologic examination revealed loss of basophilic staining of the cartilage with some dissolution of its structures. Treatment was initiated with dapsone, However, the remission was too immediate to be considered as a effect of dapsone.
Adrenal Cortex Hormones
;
Adult
;
Anti-Bacterial Agents
;
Basophils
;
Cartilage
;
Dapsone
;
Diagnosis
;
Humans
;
Polychondritis, Relapsing*
9.Cardiac dose reduction with breathing adapted radiotherapy using self respiration monitoring system for left-sided breast cancer.
Kihoon SUNG ; Kyu Chan LEE ; Seung Heon LEE ; So Hyun AHN ; Seok Ho LEE ; Jinho CHOI
Radiation Oncology Journal 2014;32(2):84-94
PURPOSE: To quantify the cardiac dose reduction during breathing adapted radiotherapy using Real-time Position Management (RPM) system in the treatment of left-sided breast cancer. MATERIALS AND METHODS: Twenty-two patients with left-sided breast cancer underwent CT scans during breathing maneuvers including free breathing (FB), deep inspiration breath-hold (DIBH), and end inspiration breath-hold (EIBH). The RPM system was used to monitor respiratory motion, and the in-house self respiration monitoring (SRM) system was used for visual feedback. For each scan, treatment plans were generated and dosimetric parameters from DIBH and EIBH plans were compared to those of FB plans. RESULTS: All patients completed CT scans with different breathing maneuvers. When compared with FB plans, DIBH plans demonstrated significant reductions in irradiated heart volume and the heart V25, with the relative reduction of 71% and 70%, respectively (p < 0.001). EIBH plans also resulted in significantly smaller irradiated heart volume and lower heart V25 than FB plans, with the relative reduction of 39% and 37%, respectively (p = 0.002). Despite of significant expansion of lung volume using inspiration breath-hold, there were no significant differences in left lung V25 among the three plans. CONCLUSION: In comparison with FB, both DIBH and EIBH plans demonstrated a significant reduction of radiation dose to the heart. In the training course, SRM system was useful and effective in terms of positional reproducibility and patient compliance.
Breast Neoplasms*
;
Cardiac Volume
;
Feedback, Sensory
;
Heart
;
Humans
;
Lung
;
Patient Compliance
;
Radiotherapy*
;
Respiration*
;
Tomography, X-Ray Computed
10.The Incidence and Medical Treatment of Congenital Nasolacrimal Duct Obstruction in Korean Infants.
Journal of the Korean Ophthalmological Society 1995;36(6):1007-1013
Congenital nasolacrimal duct obstruction(CNLDO) is the most common abnormality of the lacrimal apparatus in infants. The estimates of incidence of CNLDO had been made by many authors with variable range and the reports on the natural course of this condition in Korean infants are very seldom. We examined the patency of 990 nasolacrimal ducts in 495 newborn infants by the F.D.D.(fluorescein dye disappearance) test and lacrimal irrigation. In the 51 patients(10.3%), there were 69 obstructed nasolacrimal ducts(6.97%). The patients with eye discharge had higher incidence of CNLDO than the patients without eye discharge. There were no significant predilection of sex, chronologie age, birth weight, age of mother or type of delivery. All affected patients were followed prospectively with hydrostatic massage and topical antibiotics. Of the 46 ducts(32 infants) followed with medical treatment until 12 months after birth, 23 ducts(50%) became patent within one month after birth, 37 ducts(80%) were improved by the 2 months after birth. 45 ducts(98%) showed good patency by the 1 year after birth. In conclusion the incidence of the CNLDO in Korean infants was relatively high(10.3%), and CNLDO in newborn could be cured by the medical treatment only.
Anti-Bacterial Agents
;
Birth Weight
;
Humans
;
Incidence*
;
Infant*
;
Infant, Newborn
;
Lacrimal Apparatus
;
Massage
;
Mothers
;
Nasolacrimal Duct*
;
Parturition
;
Prospective Studies