1.Effect of pituitary transplantation and haloperidol administration on hypothalamic LHRH release in female rats.
Byoung Moon KANG ; Jin Yong LEE
Korean Journal of Obstetrics and Gynecology 1991;34(1):42-52
No abstract available.
Animals
;
Female*
;
Gonadotropin-Releasing Hormone*
;
Haloperidol*
;
Humans
;
Rats*
2.Male Infertility: XII. Pharmacological Treatment for Improving Semen Motility.
Korean Journal of Urology 1983;24(6):1078-1082
Some investigators suggest that the pancreatic proteinase kallikrein plays an important role in the regulation of spermatozoal motility. Particularly, oral kallikrein therapy exerted a favorable effect on Sperm motility in oligozoospermia and asthenozoospermia. We have carried out a similar clinical investigation of the efficacy of kallikrein, taken orally 60 kU per day for 3-9 months, on the quantitative and qualitative motility of spermatozoa in normogonadotropic infertile men. with 15 idiopathic oligozoospermia and 18 idiopathic asthenozoospermia. Number of spermatozoa increased more than double number of basic levels (over 40 x 10(6)/ml) in the 5 patients (33%) and pregnancy occurred in the 3 patients (20%) out of the 15 patients with idiopathic oligozoospermia (less than 20 x 10(6)/ml) after the kallikrein therapy. In these responded 5 patients, the sperm concentration changed from 13.6 x 10(6)/ml to 54.0 x 10(6)/ml, Motility and viability of spermatozoa improved more than 30% in the 5 patients (28%) and pregnancy occurred in the 2patients (11%) out of the 18 patients with idiopathic asthenozoospermia (less than 20% of sperm motility) after the therapy. In these. improved 5 patients, the sperm motility changed from 9.0% to 45.0%. No remarkable side effect was detected.
Asthenozoospermia
;
Humans
;
Infertility, Male*
;
Kallikreins
;
Male
;
Male*
;
Oligospermia
;
Pregnancy
;
Research Personnel
;
Semen*
;
Sperm Motility
;
Spermatozoa
3.Male Infertility: XII. Pharmacological Treatment for Improving Semen Motility.
Korean Journal of Urology 1983;24(6):1078-1082
Some investigators suggest that the pancreatic proteinase kallikrein plays an important role in the regulation of spermatozoal motility. Particularly, oral kallikrein therapy exerted a favorable effect on Sperm motility in oligozoospermia and asthenozoospermia. We have carried out a similar clinical investigation of the efficacy of kallikrein, taken orally 60 kU per day for 3-9 months, on the quantitative and qualitative motility of spermatozoa in normogonadotropic infertile men. with 15 idiopathic oligozoospermia and 18 idiopathic asthenozoospermia. Number of spermatozoa increased more than double number of basic levels (over 40 x 10(6)/ml) in the 5 patients (33%) and pregnancy occurred in the 3 patients (20%) out of the 15 patients with idiopathic oligozoospermia (less than 20 x 10(6)/ml) after the kallikrein therapy. In these responded 5 patients, the sperm concentration changed from 13.6 x 10(6)/ml to 54.0 x 10(6)/ml, Motility and viability of spermatozoa improved more than 30% in the 5 patients (28%) and pregnancy occurred in the 2patients (11%) out of the 18 patients with idiopathic asthenozoospermia (less than 20% of sperm motility) after the therapy. In these. improved 5 patients, the sperm motility changed from 9.0% to 45.0%. No remarkable side effect was detected.
Asthenozoospermia
;
Humans
;
Infertility, Male*
;
Kallikreins
;
Male
;
Male*
;
Oligospermia
;
Pregnancy
;
Research Personnel
;
Semen*
;
Sperm Motility
;
Spermatozoa
4.Supracondylar Osteotomy for Correction of Deformities of the Knee in Poliomyelitis
Duk Yong LEE ; Byoung Wan AHN ; Yang KIM
The Journal of the Korean Orthopaedic Association 1980;15(4):611-620
Supracondylar osteotomy was performed on 78 knees in 65 patients with poliomyelitis for correction of deformities of the knee at the Department of Orthopedic Surgery, Seoui National Unlversity Hospital, during the 16 years from January 1963 to December 1978. Following observations were made from the review of statistics, technical problems, and complications of the operation. 1. The ages of the patients ranged from 4 years to 28 years, the average being 15 years. Two thirds of the patients were in the second decade. 2. 37 knees (47.4%) had flexion deformity, 19 knees (24.4%) flexion-valgus deformity, and 13 knees (16.7%) flexion-valgus-external rotation deformity. The amount of flexion deformity ranged from 7 degrees to 90 degrees, the average being 22 degrees. Valgus deformity ranged from 3 degrees to 25 degrees, the average being 12 degrees. External rotation deformity ranged from 5 degrees to 30 degrees, the average being 18 degrees. 3. The operative techniques employed were categorized into 5 types. The most common type was a closed wedge hinged osteotomy (Technique I), which was employed on 50 knees (64.1%). Satisfactory results were obtained by combining other procedures, when necessary, i.e. pre-operative skeletal traction, Yount fasciotomy, high tibial rotation osteotomy hamstring transfer and epiphysiodesis. 4. The time required for union was the shortests in the Technique 1 group, and longest in the Technique III group, a complete osteotomy with bone shortening. 5. The most common complication was stiff knee, which was encountered in 10 knees. Residual or recurrent deformity was observed in 4 knees, in 3 of which hamstring transfer was recommended but was not consumated. Delayed union was observed in 3 knees in the Technique II group (closed wedge complete osteotomy) and in 1 knee in the Technique III group. Nonunion occured in 1 knee in the Technique II group. The incidence of complications were higher in the Technique II and III groups, and lowest in the Technique I group.
Congenital Abnormalities
;
Humans
;
Incidence
;
Knee
;
Orthopedics
;
Osteotomy
;
Poliomyelitis
;
Traction
5.CONFOCAL LASER SCANNING MICROSCOPY STUDY ON INTERFACE BONE AND TITANIUM IMPLANT COATED BY CHITOSAN.
Yeun Chun PARK ; Byoung Gun AN ; Young Joo PARK ; Yong Chan LEE ; Byoung Wouck CHO
Journal of the Korean Association of Oral and Maxillofacial Surgeons 1998;24(4):440-447
The purpose of present study was to observe the radiographic finding and histologic response by Confocal Laser Scanning Microscopy(CLSM) on interface of the bone and titanium implant coated by chitosan. The tissue of rabbit tibiae to the surgical placement titanium implant coated by chitosan was examined at 3, 9 and 24 days postoperatively. The radiographic finding showed that surrounding bone density of implants was not significantly different compare with the bone on 3 and 9 days group. A large amount new bone was formed on 24 days group, the reason was osteconduction activity by chitosan. The CLSM analysis show that the surface coating by chitosan filled the gap between bone and implant on 3 days group and filled by mew born on 9 days group. On 24 days group, the bone and titanium surface was filled by lamella bone. This results indicated that this enhanced the initial stability of implant significantly and chitosan induced osseointegration around implant. CLSM allows the non-destrutive histo-tomography of bone biopsy as well as clinical practice. We conclude that CLSM allowed a good comprehension of the nature of bone-implant contact, avoiding artifacts due to the thickness of the specimen.
Artifacts
;
Biopsy
;
Bone Density
;
Chitosan*
;
Comprehension
;
Microscopy, Confocal*
;
Osseointegration
;
Tibia
;
Titanium*
6.Biomechanical Properties of the Growing Long Bone
Han Koo LEE ; Duk Yong LEE ; Sang Hoon LEE ; Byoung Wan AHN ; Chin Youb CHUNG
The Journal of the Korean Orthopaedic Association 1987;22(2):356-368
Bone is a heterogenous and anisotrophic material exhibiting elastic, viscoelastis and plasticproperties. A considerable amount of information is now available regarding biomechanical properties and mechanisms of fractures of mature long bones, but less is known about the properties of the growing bones. In order to assess the biomechanical properties under tension, rabbits growing bones were loaded with Instron Modal 1,000 until fracture occurred. Two hundred tibiae of 100 New Zealand white immature rabbits were divided into 6 experimental groups according to maturity and size. Group I-R(40 right tibiae of 1-month old rabbits), Group I-L (40 left tibiae of 1-month old rabbits), Group II-R(20 right tibiae of 3-month old rabbits), Group II-L (20 left tibiae of 3-month old rabbits), Group III-R(40 rigth tibiae of 5-month old rabbits), and Group III-L(40 left tibiae of 5-month old rabbits). The following results were obtained. 1. Fracture type was transverse.or nearly transverse in 170 out of the total 200 tibiae(85%).
Absorption
;
Elastic Modulus
;
New Zealand
;
Rabbits
;
Tensile Strength
;
Tibia
7.Treatment of the Unstable Thoracolumbar Fractures Using Cotrel
In Heon PARK ; Kee Byoung LEE ; Myung Ryool PARK ; Jin Young LEE ; Deuk Yong LEE
The Journal of the Korean Orthopaedic Association 1990;25(1):123-131
Surgical stabilization using instrumentation for thoracolumbar injuries offers several advantages such as nearly anatomic reduction of fractures, protection of neurologic structures and most importantly early ambulation of the patient. The treatment of fracture-dislocation of the thoracolumbar spine has been progressively improved over the past decades and recently a lot of new device have been introduced to improve fixability of the involved vertebrae three dimensionally and short segmental fixation as possible. The authors have treated 17 cases of unstable thoracolumbar fracture using Cotrel-Dubousset instrumentation in the Department of Orthopedic Surgery, Kangdong Sacred Heart Hospital from Jan. 1988 to Jan. 1989 with the following results: 1. Bursting fractures are the most common type(52.9%) of mechanism of injury. 2. Excellent anatomic reductions were obtained and compression, wedging and local kyphotic deformities were nicely corrected. 3. Short segmental fixation can preserve the maximal spinal mobility. 4. No significant loss of reduction or loosening of implant was found. 5. Remarkable neurologic recoveries were observed in cases of incomplete cord lesion. 6. Significant neurologic recovery was found in patients treated with laminectomy and Cotrel-Dubousset instrumentation.
Congenital Abnormalities
;
Early Ambulation
;
Heart
;
Humans
;
Laminectomy
;
Orthopedics
;
Spine
8.Arthroscopic Management of the Tibial Condylar Fractures
In Heon PARK ; Kee Byoung LEE ; Myung Ryool PARK ; Jin Young LEE ; Deuk Yong LEE
The Journal of the Korean Orthopaedic Association 1990;25(5):1323-1332
Fractures of the tibial condyles, involving as they do weight-bearing articular surfaces and frequently accompanied by soft tissue injuries such as collateral ligaments, cruciate ligaments, and menisci present a variety of problems in treatment and prognosis. Slee, Apley, and others maintained the opinion that most fractures of the tibial condyles could be managed conservatively. On the other hand, Rombold, Schatzker, and others seemed to consider closed treatment to be virtually s form of therapeutic nihilism and adviced open reduction. But recently most authors agree that the method of treatment has to be selected in each individual case, and recommand anatomical reduction of the fracture as possible and early knee motion. The authors have treated 17 cases of tibial condylar fractures with arthroscopic management and extraarticular distal approach in the Department of Orthopedic surpery, Kang Dong Sacred Heart Hospital from Oct. 1986 to Jul. 1989. Of the above cases, 11 cases could be followed for a period of anywhere from 1 year to 31/2 years and analysed according to the cause, classification, treatment, and result. The following results were obtained from the analysis of 11 tibial condylar fractures. l. Of the 11 cases, 7 (63.6%) were male and 4 (36.4%) were female. 2. Of the 11 cases, 7 (63.6%) were due to traffic accident (5 pedestrians, 2 occupants) and 3 (27.3%) were due to fall from height. 3. Among 11 cases, 7 (63.6%) were associated with other injuries. 4. Bone graft was needed in 5 cases. 5. All were treated by arthroscopic management with anatomically and functionally good results. 6. By arthroscopic mangement, it was easy to find and treat the accompanying intraarticular lesion. 7. With early active and C.P.M. exercise, almost full range of motion was obtained in all cases.
Accidents, Traffic
;
Classification
;
Collateral Ligaments
;
Female
;
Hand
;
Heart
;
Humans
;
Knee
;
Ligaments
;
Male
;
Methods
;
Orthopedics
;
Pedestrians
;
Prognosis
;
Range of Motion, Articular
;
Soft Tissue Injuries
;
Tibia
;
Transplants
;
Weight-Bearing
10.Leadership Experience of Clinical Nurses: Applying Focus Group Interviews.
Byoung Sook LEE ; Yong Sook EO ; Mi Aie LEE
Journal of Korean Academy of Nursing 2015;45(5):671-683
PURPOSE: The purpose of this study was to understand and describe the leadership experience of clinical nurses. METHODS: During 2014, data were collected using focus group interviews. Three focus group interviews were held with a total of 20 clinical nurses participating. All interviews were recorded as they were spoken and transcribed and data were analyzed using qualitative content analysis. RESULTS: Fifteen categories emerged from the five main themes. 1) Thoughts on the leadership category: to lead others, to cope with problem situations adequately and to serve as a shield against difficulties. 2) Situations requiring leadership: situation that requires correct judgement, coping and situations that need coordination and cooperation. 3-1) Leadership behaviors: other-oriented approach and self-oriented approach. 3-2) Leadership behavior consequences: relevant compensation and unfair termination. 4-1) Facilitators of leadership: confidence and passion for nursing and external support and resources. 4-2) Barriers to leadership: non-supportive organization culture and deficiency in own leadership competencies. 5) Strategies of leadership development: strengthen leadership through self-development and organizational leadership development. CONCLUSION: In conclusion, the results indicate that it is necessary to enhance clinical nurses' leadership role in healthcare. Enhancement can be achieved through leadership programs focused on enlarging leadership experience, constant self-development, leadership training, and development of leadership competencies suited to the nursing environment.
Adult
;
Female
;
Focus Groups
;
Humans
;
Interviews as Topic
;
*Leadership
;
Middle Aged
;
Nurse's Role
;
Nursing Staff, Hospital/*psychology
;
Organizational Culture
;
Surveys and Questionnaires