1.Early MRI Finding of Femoral Head in Traumatic Hip Dislocation.
Hyung Ku YOON ; Kwang Pyo JEON ; Dae Eun JUNG ; Hoe Seung JEON ; Ji Ung YANG
The Journal of the Korean Orthopaedic Association 1997;32(3):565-572
Traumatic dislocation of the hip presents serious problems that may lead to avascular necrosis, nerve palsy, post-traumatic arthritis even when reduction is promptly and adequately carried out. Among them avascular necrosis is the most important prognostic factor, so the early detection of this complication has critical significance for final result. Bone scan has been considered one of early diagnostic test, but recently MRI replaced its role for imaging in the detection of early AVN, treatment monitoring and prediction of prognosis. Authors prospectively studied the early finding of MRI to detect avascular necrosis of the femoral head and to predict prognosis in traumatic hip dislocation and fracture-dislocation. From December 1990 to November 1994, 12 case of dislocation and fracture-dislocation of the hip were studied . In follow up period ranging from 19 months to 65 months, 10 case had excellent or good result. All cases had abnormal MRI finding such as paraarticular edema, capsular bulging, joint effusion, femoral head fracture, but findings such as femoral head signal changes were dectected in only 3 cases. Among the 3 cases, 1 case had developed AVN and 2 cases were uneventful. Other complications were 3 cases of posttraumatic arthritis, 2 cases of incomplete sciatic nerve palsy, and 1 case of heterotrophic ossification. Although early MRI finding at posttrauma 2weeks gave less specific information, it could give good information for risk group and follow up control with more cases. Although it is expensive, MRI can be one of the most reliable reference in early diagnosis of AVN and prediction of prognosis in traumatic dislocation and fracture- dislocation of the hip with non-invasive method.
Arthritis
;
Diagnostic Tests, Routine
;
Dislocations
;
Early Diagnosis
;
Edema
;
Follow-Up Studies
;
Head*
;
Hip Dislocation*
;
Hip Joint
;
Hip*
;
Joints
;
Magnetic Resonance Imaging*
;
Necrosis
;
Paralysis
;
Prognosis
;
Prospective Studies
;
Sciatic Neuropathy
2.The Influence of Leader-Member Exchange Relationship, Perceived Organizational Support, and Work-Life Balance on Tertiary Hospital Nurses’ Retention Intention
Journal of Korean Academy of Fundamental Nursing 2023;30(1):13-23
Purpose:
This descriptive survey-based study was conducted to understand the influence of leader-member exchange, perceived organizational support, and work-life balance on retention intention, with the ultimate aim of increasing retention intention among nurses.
Methods:
Data were collected from 150 nurses with more than 6 months of experience at a tertiary general hospital with 700 beds in Seoul, Korea. The collected data were analyzed using SPSS version 28.0. Hierarchical multiple regression analysis was performed to identify factors influencing retention intention.
Results:
Job satisfaction (β=.28, p<.001) and the work and growth factor (β=.39, p<.001) had significant influences on the intention to stay. These factors accounted for approximately 49% of the variance in retention intention.
Conclusion
In this study, variables that can affect the retention intention of hospital nurses were identified, and the work and growth factor, which is a component of work-life balance, was found to affect retention intention. It is necessary to develop a competency development program that can foster the development of professional nurses and a system that can apply the program in practice.
3.Comparison study on results of LAVH according to prior abdominal surgery.
Chun Hoe KU ; Seung Jun YOON ; Ji Seung LEE ; Hong Kyoon LEE ; Ki Bum LEE
Korean Journal of Obstetrics and Gynecology 2006;49(5):1085-1092
OBJECTIVE: To evaluate the result of laparoscopically assisted vaginal hysterectomy (LAVH) according to history of prior abdominal surgery. METHODS: From January, 2003 to June, 2005, a total of 504 patients were performed LAVH at our Hospital. The patients were divided into 2 groups: Group of non prior abdominal surgery (Op. Hx(-) group) included 262 cases and group of prior abdominal surgery (Op. Hx(+) group) had 242 cases. We reviewed medical records and analyzed these cases regarding age, parity, weight, height, operation indication, operation outcome, duration of hospitalization and complication. RESULTS: There were no differences in terms of patients' mean age, parity, weight and height, and indications for surgery between the two groups. Mean operation time of Op. Hx(+) group (86.9+/-28.2 min) was longer than Op. Hx(-) group (80.7+/-20.0 min). There was no statistical difference on mean postoperative hemoglobin drop and mean uterine weight between the 2 groups. Mean hospital stay of Op. Hx(+) group (4.6+/-1.7 days) was longer than Op. Hx(-) group (4.3+/-0.9 days). The incidence of major surgical complications was higher in Op. Hx(+) group (10 cases - 4.1%) than Op. Hx(-) group (3 cases - 1.2%). In case of blader injury, Op. Hx(+) group (5 cases) was higher than Op. Hx(-) group (0 case). Op. Hx(+) group had 2 ureteral injuries and 1 rectal injury but there were no statistical differences. In case of trocar site bleeding, both group had 2 cases trocar site bleeding respectively. Op. Hx(-) group had 1 inferior vena cava injury but there was no statistical difference. CONCLUSION: At the time of LAVH, the incidence of bladder injury was higher in group of patients with history of prior abdominal surgery. So special attention should be paid to prevent bladder injury.
Female
;
Hemorrhage
;
Hospitalization
;
Humans
;
Hysterectomy, Vaginal
;
Incidence
;
Length of Stay
;
Medical Records
;
Parity
;
Surgical Instruments
;
Ureter
;
Urinary Bladder
;
Vena Cava, Inferior
4.Comparison study on results of LAVH according to prior abdominal surgery.
Chun Hoe KU ; Seung Jun YOON ; Ji Seung LEE ; Hong Kyoon LEE ; Ki Bum LEE
Korean Journal of Obstetrics and Gynecology 2006;49(5):1085-1092
OBJECTIVE: To evaluate the result of laparoscopically assisted vaginal hysterectomy (LAVH) according to history of prior abdominal surgery. METHODS: From January, 2003 to June, 2005, a total of 504 patients were performed LAVH at our Hospital. The patients were divided into 2 groups: Group of non prior abdominal surgery (Op. Hx(-) group) included 262 cases and group of prior abdominal surgery (Op. Hx(+) group) had 242 cases. We reviewed medical records and analyzed these cases regarding age, parity, weight, height, operation indication, operation outcome, duration of hospitalization and complication. RESULTS: There were no differences in terms of patients' mean age, parity, weight and height, and indications for surgery between the two groups. Mean operation time of Op. Hx(+) group (86.9+/-28.2 min) was longer than Op. Hx(-) group (80.7+/-20.0 min). There was no statistical difference on mean postoperative hemoglobin drop and mean uterine weight between the 2 groups. Mean hospital stay of Op. Hx(+) group (4.6+/-1.7 days) was longer than Op. Hx(-) group (4.3+/-0.9 days). The incidence of major surgical complications was higher in Op. Hx(+) group (10 cases - 4.1%) than Op. Hx(-) group (3 cases - 1.2%). In case of blader injury, Op. Hx(+) group (5 cases) was higher than Op. Hx(-) group (0 case). Op. Hx(+) group had 2 ureteral injuries and 1 rectal injury but there were no statistical differences. In case of trocar site bleeding, both group had 2 cases trocar site bleeding respectively. Op. Hx(-) group had 1 inferior vena cava injury but there was no statistical difference. CONCLUSION: At the time of LAVH, the incidence of bladder injury was higher in group of patients with history of prior abdominal surgery. So special attention should be paid to prevent bladder injury.
Female
;
Hemorrhage
;
Hospitalization
;
Humans
;
Hysterectomy, Vaginal
;
Incidence
;
Length of Stay
;
Medical Records
;
Parity
;
Surgical Instruments
;
Ureter
;
Urinary Bladder
;
Vena Cava, Inferior
5.A proposal for improvement in the utilization rate of banked cord blood.
Young Ho LEE ; Ji Yoon KIM ; Yeung Chul MUN ; Hong Hoe KOO
Blood Research 2013;48(1):5-7
No abstract available.
Fetal Blood
6.A proposal for improvement in the utilization rate of banked cord blood.
Young Ho LEE ; Ji Yoon KIM ; Yeung Chul MUN ; Hong Hoe KOO
Blood Research 2013;48(1):5-7
No abstract available.
Fetal Blood
7.Diagnosis and Treatment of Patients With Acute Neurologic Symptoms Using a Coordinated Response Protocol.
Chang Min SUNG ; Eui Chung KIM ; Yoo Sang YOON ; Hyun Soo CHUNG ; In Cheol PARK ; Ji Hoe HEO
Journal of the Korean Society of Emergency Medicine 2006;17(5):424-430
PURPOSE: Patient delays in seeking treatment of stroke and Emergency Department delays are major factors in preventing the use of thrombolytic therapy for stroke. For the achievement of rapid diagnosis and treatment in the emergency center, a unified and systematic confrontation of symptoms and good team cooperation are essential. METHODS: Various departments involved in the management of acute stroke in the ED conferred to discuss ways to minimize door-to-CT and door-to-drug times in the ED. This team formulated the BEST (Brain salvage through Emergent Stroke Therapy) protocol to optimize the treatment of acute stroke patients. Our study employed the BEST protocol for four month during the period from October, 2004 to February, 2005. Inclusion criteria for the protocol were admission to our Hospital's ED with an acute neurologic symptoms and an onset time of less than 12 hours. RESULTS: Ninety-six patients, including fifty-eight men were enrolled in the study. Reasons for acute neurologic changes were ischemic stroke (66 patients), hemorrhagic stroke (22 patients), and metabolic causes (8 patients). Of the 66 ischemic stroke patients, 11 received tissue plasminogen activator (tPA) and 2 were administered Intraarterial Urokinase (IAUK). Door-to-CT times before and after initiation of the BEST protocol were 47+/-19 minutes and 26+/-12 minutes, respectively (p-value=0.024). And door-to-drug times before and after the BEST protocol were 96+/-16 minutes and 67+/-28 minutes, respectively (pvalue=0.035). CONCLUSION: Assembly of a specific "stroke team"and implementation of a well-designed protocol allows the most efficient evaluation and treatment of patients with acute stroke, thus minimizing both door-to-CT and door-to-drug times.
Cerebral Infarction
;
Diagnosis*
;
Emergencies
;
Emergency Service, Hospital
;
Humans
;
Male
;
Medical Records
;
Neurologic Manifestations*
;
Stroke
;
Thrombolytic Therapy
;
Tissue Plasminogen Activator
;
Urokinase-Type Plasminogen Activator
8.The effect of mineral trioxide aggregate on the production of growth factors and cytokine by human periodontal ligament fibroblasts.
Ji Yoon KWON ; Sung Sam LIM ; Seung Ho BAEK ; Kwang Shik BAE ; Myung Hoe KANG ; Woocheol LEE
Journal of Korean Academy of Conservative Dentistry 2007;32(3):191-197
Mineral trioxide aggregate (MTA) would influence healing of periapical tissues by modulating the production of growth factors and cytokines from PDL fibroblasts, however, the studies are insufficient. Therefore, the purpose of this study was to monitor the expression of transforming growth factor-beta1 (TGF- beta1), fibroblast growth factor-2 (FGF-2), and interleukin-6 (IL-6) from PDL fibroblasts in the presence of MTA. The human PDL fibroblasts were seeded onto the set MTA or IRM at a level of 1 x 10(5) cells per unit well, and further incubated for 6, 12, 24, and 48 hours. The levels of TGF-beta1, FGF-2, and IL-6 from the supernatant were measured by enzyme-linked immunosorbent assay (ELISA). The data were analyzed using one-way ANOVA. The level of TGF-beta1 was down-regulated when the cells were grown in the presence of MTA except at 6 hours. The levels of FGF-2 release were significantly suppressed when PDL fibroblasts were grown in the presence of MTA or IRM at all time intervals (p < 0.05). The expressions of IL-6 from MTA treated cells were comparable to those of untreated control cells throughout the observation periods. We presume that this material inhibits the stimulatory function of growth factors on granulation tissue formation and in turn, it promotes the healing process modulated by other bone-remodeling cells.
Cytokines
;
Enzyme-Linked Immunosorbent Assay
;
Fibroblast Growth Factor 2
;
Fibroblasts*
;
Granulation Tissue
;
Humans*
;
Intercellular Signaling Peptides and Proteins*
;
Interleukin-6
;
Periapical Tissue
;
Periodontal Ligament*
;
Transforming Growth Factor beta1
;
Pemetrexed
9.The effect of mineral trioxide aggregate on the production of growth factors and cytokine by human periodontal ligament fibroblasts.
Ji Yoon KWON ; Sung Sam LIM ; Seung Ho BAEK ; Kwang Shik BAE ; Myung Hoe KANG ; Woocheol LEE
Journal of Korean Academy of Conservative Dentistry 2007;32(3):191-197
Mineral trioxide aggregate (MTA) would influence healing of periapical tissues by modulating the production of growth factors and cytokines from PDL fibroblasts, however, the studies are insufficient. Therefore, the purpose of this study was to monitor the expression of transforming growth factor-beta1 (TGF- beta1), fibroblast growth factor-2 (FGF-2), and interleukin-6 (IL-6) from PDL fibroblasts in the presence of MTA. The human PDL fibroblasts were seeded onto the set MTA or IRM at a level of 1 x 10(5) cells per unit well, and further incubated for 6, 12, 24, and 48 hours. The levels of TGF-beta1, FGF-2, and IL-6 from the supernatant were measured by enzyme-linked immunosorbent assay (ELISA). The data were analyzed using one-way ANOVA. The level of TGF-beta1 was down-regulated when the cells were grown in the presence of MTA except at 6 hours. The levels of FGF-2 release were significantly suppressed when PDL fibroblasts were grown in the presence of MTA or IRM at all time intervals (p < 0.05). The expressions of IL-6 from MTA treated cells were comparable to those of untreated control cells throughout the observation periods. We presume that this material inhibits the stimulatory function of growth factors on granulation tissue formation and in turn, it promotes the healing process modulated by other bone-remodeling cells.
Cytokines
;
Enzyme-Linked Immunosorbent Assay
;
Fibroblast Growth Factor 2
;
Fibroblasts*
;
Granulation Tissue
;
Humans*
;
Intercellular Signaling Peptides and Proteins*
;
Interleukin-6
;
Periapical Tissue
;
Periodontal Ligament*
;
Transforming Growth Factor beta1
;
Pemetrexed
10.Wound healing effect of regenerated oxidized cellulose versus fibrin sealant patch: An in vivo study
Hyun Sik YOON ; Young Cheon NA ; Keum Ha CHOI ; Woo Hoe HUH ; Ji Min KIM
Archives of Craniofacial Surgery 2019;20(5):289-296
BACKGROUND: Topical hemostatic agents are used when ligation, electrocauterization, or other conventional hemostatic methods are impractical. Because a hemostatic agent is a foreign body, it can cause foreign body reactions, inflammation, and infections that can interfere with the wound healing process. Therefore, we should select hemostatic agents after considering their effects on wound healing. Here, we compared the effects of hemostatic agents on wound healing in a rectus abdominis muscle defect in rats. METHODS: Twelve Sprague Dawley rats were subjected to creation of a 6 × 6 mm defect in the rectus abdominis muscle and divided into four groups: control group; group A, Tachosil fibrin sealant patch; group B, Surgicel Fibrillar oxidized regenerated cellulose; and group C, Surgicel Snow oxidized regenerated cellulose. For the histologic analysis, biopsies were performed on the 3rd, 7th, and 27th days. RESULTS: The foreign body reaction was the weakest in group A and most significant in group C. The inflammatory cell infiltration was the weakest in group A and similar in groups B and C. Muscle regeneration differed among periods. The rats in group A were the most active initially, while those in group C showed prolonged activity. CONCLUSION: Tachosil and Surgicel administration increased inflammation via foreign body reactions, but the overall wound healing process was not significantly affected. The increased inflammation in the Surgicel groups was due to a low pH. We recommend using Tachosil, because it results in less intense foreign body reactions than Surgicel and faster wound healing due to the fibrin action.
Animals
;
Biopsy
;
Cellulose
;
Cellulose, Oxidized
;
Fibrin Tissue Adhesive
;
Fibrin
;
Fibrinogen
;
Foreign Bodies
;
Foreign-Body Reaction
;
Hemostatics
;
Hydrogen-Ion Concentration
;
Inflammation
;
Ligation
;
Rats
;
Rats, Sprague-Dawley
;
Rectus Abdominis
;
Regeneration
;
Snow
;
Thrombin
;
Wound Healing
;
Wounds and Injuries