1.A Case of Fetal Nuchal Cystic Hygroma.
Yung Ha CHOI ; Chung Ok PARK ; Wan Seok PARK ; Tae Hyung LEE ; Sung Ho LEE
Yeungnam University Journal of Medicine 1989;6(1):165-169
Fetal cystic hygroma is a rare congenital malformation of the lymphatic system appearing as a single or multiloculated fluid-filled cavity, most often in the neck. A case of fetal nuchal cystic hygroma was diagnosed by Ultrasonography at 22 weeks of gestation and the diagnosis was confirmed at autopsy. We present the case with a brief review of literature.
Autopsy
;
Diagnosis
;
Lymphangioma, Cystic*
;
Lymphatic System
;
Neck
;
Pregnancy
;
Ultrasonography
2.Characteristics of the regimens for patients with pulmonary tuberculosis registered at public health centers in Seoul.
Kyung Hee KIM ; Sun Ok PARK ; Heui Sug JO ; Eun Hee HA ; Hye Sook PARK
Journal of the Korean Academy of Family Medicine 1997;18(5):479-489
BACKGROUND: Through the control of tuberculosis at 22 public health centers under the National Tuberculosis Control Program, this study is purposed to examine the situation of the tuberculous patients and the characteristics of the therapeutic regimens. METHODS: The data was obtained from 8091 medical records of pulmonary tuberculous patients who were registered for treatment at public health center in Seoul during the year of 1993. It was comparatively analysed by the general characteristics(gender, age, chest X-ray findings, sputum results, treatment results, side effects, combined diseases and accompanied extra-pulmonary tuberculosis) according to various regimens of the tuberculosis. RESULTS: The male patients were 5144, the female were 2947. 34.1% of patients were between 21 and 30years of age. Short course regimen was 97.1% and long course regimen was 2.9%. According to chest X-ray findings minimal 53.5%, moderately advanced 41.2%, far advanced 5.3%. Sputum AFB negative was 52.2% and positive was 47.8%. Therapeutic efficiency was high in short course regimen. Among the side effects, dermatologic problems was high and at the regimen of EHRZ side effects were developed highly. Combined diseases were liver diseases(5.2%), DM(4.2%). Accompanied extrapulmonary tuberculosis were pleurisy(5.4% ), superficial lymphadenitis(0.4% ). CONCLUSIONS: There was great effects in the treatment of tuberculosis with short course regimen in the National Tuberculosis Control Program. But only 38% among the expected patients were treated in this country. So the greater efforts were needed to find and treat more patients effectively.
Female
;
Humans
;
Liver
;
Male
;
Medical Records
;
Public Health*
;
Seoul*
;
Sputum
;
Thorax
;
Tuberculosis
;
Tuberculosis, Pulmonary*
3.Stress analysis of supporting tissues and implants according to implant fixture shapes and implant-abutment connections.
Sang Un HAN ; Ha Ok PARK ; Hong So YANG
The Journal of Korean Academy of Prosthodontics 2004;42(2):226-237
PURPOSE: Four finite element models were constructed in the mandible having a single implant fixture connected to the first premolar-shaped superstructure, in order to evaluate how the shape of the fixture and the implant-abutment connection would influence the stress level of the supporting tissues, fixtures, and prosthethic components. MATERIAL AND METHODS: The superstructures were constructed using UCLA type abutment, ADA type III gold alloy was used to fabricate a crown and then connected to the fixture with an abutment screw. The models BRA, END, FRI, ITI were constructed from the mandible implanted with Branemark, Endopore, Frialit-2, I.T.I systems respectively. In each model, 150 N of vertical load was placed on the central pit of an occlusal plane and 150 N of 40.oblique load was placed on the buccal cusp. The displacement and stress distribution in the supporting tissues and the other components were analysed using a 2-dimensional finite element analysis. The maximum stress in each reference area was compared. RESULTS: 1. Under 40.oblique loading, the maximum stress was larger in the implant, superstructure and supporting tissue, compared to the stress pattern under vertical loading. 2. In the implant, prosthesis and supporting tissue, the maximum stress was smaller with the internal connection type (FRI) and the morse taper type (ITI) when compared to that of the external connection type (BRA and END). 3. In the superstructure and implant/abutment interface, the maximum stress was smaller with the internal connection type (FRI) and the morse taper type (ITI) when compared to that of the external connection type (BRA and END). 4. In the implant fixture, the maximum stress was smaller with the internal connection type (FRI) and the morse taper type (ITI) when compared to that of the external connection type (BRA and END). 5. The stress was more evenly distributed in the bone/implant interface through the FRI of trapezoidal step design. Especially Under 40.oblique loading, The maximum stress was smallest in the bone/implant interface. 6. In the implant and superstructure and supporting tissue, the maximum stress occured at the crown loading point through the ITI. CONCLUSION: The stress distribution of the supporting tissue was affected by shape of a fixture and implant-abutment connection. The magnitude of maximum stress was reduced with the internal connection type (FRI) and the morse taper type (ITI) in the implant, prosthesis and supporting tissue. Trapezoidal step design of FRI showed evenly distributed the stress at the bone/implant interface.
Alloys
;
Crowns
;
Dental Occlusion
;
Finite Element Analysis
;
Mandible
;
Prostheses and Implants
4.Factors Affecting Burnout among Clinical Nurses according to Positive Psychological Capital.
Jeong Ok KO ; Sook Kyoung PARK ; Myung Ha LEE
Journal of Korean Academy of Nursing Administration 2013;19(2):304-314
PURPOSE: The purpose of this study was to analyze factors affecting burnout among clinical nurses according to Positive Psychological Capital. METHODS: The study design was a descriptive survey and questionnaires were collected from 412 clinical nurses who worked in a general hospital in "J" city. Data were analyzed using frequency, percentage, mean, standard deviation, independent t-test, One-way ANOVA, Scheffe test, Pearson Correlation, and hierarchical multiple regression. RESULTS: In Model individual characteristics accounted for 27.8% of the influence on burnout. In model II with the addition of the 4 factors; Self-efficacy, Hope, Resilience, Optimism, individual characteristics accounted for 48.5% of the influence on burnout. Optimism and Resilience of the Positive Psychological Capital sub-variables were statistically useful as factors influencing burnout. CONCLUSION: The results indicate that it is necessary to develop active human resource management and educational programs to decrease burnout and strengthen the Positive Psychological Capital of the nurses.
Hospitals, General
;
Humans
;
Surveys and Questionnaires
5.Evaluation of Informed Consent for Withholding and Withdrawal of Life Support in Korean Intensive Care Units.
Jin Ha PARK ; Shin Ok KOH ; Jin Sun CHO ; Sungwon NA
Korean Journal of Critical Care Medicine 2015;30(2):73-81
BACKGROUND: The goal of this study was to analyze the process and characteristics of withholding or withdrawal of life support (WLS) in Korean intensive care units (ICUs). METHODS: This was a single-centered retrospective analysis of patients who died in the ICUs of a tertiary hospital in Korea from January to December 2012. WLS informed consents and clinical data were analyzed. RESULTS: Of 285 deaths during the study period, informed consents for WLS were obtained from 228 patients (80.0%). All WLS decisions were made by family members after the patient's loss of decision-making capacity. Decisions were made most frequently by the patient's son (50.6%). Patients in the WLS group were older than those in the non-WLS group, and older age was associated with the WLS decision. Thirty-seven patients (16.2%) died within one hour of WLS approval, and 182 patients (79.8%) died on the day of WLS approval. The most frequently withheld life support modality was chest compression (100%), followed by defibrillation (95.9%) and pacemaker insertion (63.3%). CONCLUSIONS: Aggressive and invasive life support measures were those most frequently withheld or withdrawn by decision-makers in Korean ICUs. The most common proxy was the son, rather than the spouse.
Humans
;
Informed Consent*
;
Intensive Care Units*
;
Korea
;
Life Support Care
;
Proxy
;
Retrospective Studies
;
Spouses
;
Tertiary Care Centers
;
Thorax
;
Withholding Treatment
6.Two Cases of Vaginal Injury due to Coitus.
Yung Ha CHOI ; Chung Ok PARK ; Jae Wung KIM ; Jong Wook KIM ; Sung Ho LEE
Yeungnam University Journal of Medicine 1987;4(2):193-195
Two cases of vaginal injury due to Coitus are presented. One is the case of the laceration of midportion of posterior vaginal wall with shock and the other one in the laceration of posterior vaginal fornix and pelvic peritoneum. They are all in multiparity. And a review of literature on vaginal injury due to coitus is made briefly.
Coitus*
;
Female
;
Lacerations
;
Parity
;
Peritoneum
;
Shock
7.Studies of free radical scavenger enzymes in RBC from cervical cancer patients.
Byung Ok PARK ; Ha Jong JANG ; Hyuck JUNG ; Se Joon HAN
Korean Journal of Obstetrics and Gynecology 1991;34(6):804-810
No abstract available.
Humans
;
Uterine Cervical Neoplasms*
8.The Effects of Service Orientation on the Organizational Commitment and Management Performance of Public Health Center Workers.
Ok Joo LEE ; Sook Kyoung PARK ; Mung Ha LEE
Korean Journal of Occupational Health Nursing 2017;26(3):151-159
PURPOSE: The purpose of this study was to identify the effects of service orientation on the organizational commitment and management performance of public health center workers. METHODS: A cross-sectional survey design was used. A convenience sample of 280 workers was recruited from six public health centers in J province, South Korea. Data were collected by self-report questionnaires, including general characteristics, service orientation, organizational commitment, and management performance. Data were analyzed with descriptive statistics, Pearson correlation coefficients, independent t-test, one-way ANOVA, and hierarchical regression using the SPSS 22.0 program. RESULTS: The service orientations explained 34.1%of the variance in organizational commitment and explained 31.4% of the variance in management performance. The service orientation was a significant predictor of organizational commitment and management performance. CONCLUSION: The results of this study suggest that better strategies for service orientations will be helpful to enhance organizational commitment and management performance in the public health center.
Cross-Sectional Studies
;
Korea
;
Public Health*
9.Protective Action of Purinergic and Cholinergic Agonists on the Ischemic Myocardium in the Rat.
Jae Ha KIM ; Sang Duck PARK ; Jeong Min JU ; Hyun KOOK ; Jeong Gwan CHO ; Ok Kyu PARK
Korean Circulation Journal 1998;28(7):1141-1153
BACKGROUND: Purinergic and cholinergic agonists elicit negative-inotropic and chronotropic effects, anticip-ating their protective action from the damage of overloaded myocardium. However, the actions of the agents during the ischemic insults are not yet clearly informed. The aim of this study was to investigate the role of the purinergic and cholinergic agonists on the simulated ischemic myocardium of the rat atrial fiber preparations. METHOD: Various action potential parameters (maximum diastolic potential MDP;action potential amplitude APA;velocity of phase 0 depolarization dV/dtmax;action potential duration APD90) were measured and compared in electrically paced, normal (NPSS) and modified physiological salt solution (MPSS) superfused rat atrial fibers in vitro, using conventional 3M-KCl microelectrode technique. Ischemia-simulated modified physiologic solutions were prepared by changing the solution's composition. RESULTS: Hypoxic-and/or hyperkalemic-MPSS decreased all the action potential (AP) variables. However, no significant changes of the AP variables were developed by the acidic-or glucose-free MPSS. Adenosine (Ado) and cyclopentyladenosine (CPA) only decreased the APD90 in a dose-dependent manner. Acetylcholine (Ach) and carbachol (Cch) hyperpolarized the MDP, increased the dV/dtmax with certain doses, and decreased the APD90 dose-depen-dently. The potency for APD90-decrease was greater in order, CPA>Cch>Ach>Ado. Ado and CPA did not affect the hypoxic, hypokalemic MPSS-induced dV/dtmax-decrease. On the other hand, Ach and Cch sig-nificantly inhibited the dV/dtmax-decrease by the hypoxic hypokalemic-MPSS. Ado, CPA, Ach and Cch sig-nificantly augmented the hypoxic, hypokalemic MPSS-induced APD90-decrease. The inhibition by the Ach and Cch on the MPSS-induced dV/dtmax-decrease was not affected by DPCPX, but atropine significantly attenuated the inhibition by the cholinergic agonists. DPCPX inhibited the augmentation by the Ado and CPA on the MPSS induced APD90-decrease, and atropine inhibited the effect of the cholinergic agonists. CONCLUSION: Both purinergic and cholinergic agonists not only shorten the AP duration by themselves but also enhance the AP-shortening effect elicited by the ischemia, and therefore, it is inferred that both agonists prevent further tissue damage from the ischemic insults.
Acetylcholine
;
Action Potentials
;
Adenosine
;
Animals
;
Atropine
;
Carbachol
;
Cholinergic Agonists*
;
Hand
;
Ischemia
;
Microelectrodes
;
Myocardium*
;
Rats*
10.Shear bond strength of composite resin to titanium according to various surface treatments.
Seung Yun LEE ; Mong Sook VANG ; Hong So YANG ; Sang Won PARK ; Ha Ok PARK ; Hyun Pil LIM
The Journal of Advanced Prosthodontics 2009;1(2):68-74
STATEMENT OF PROBLEM: When veneering composite resin-metal restoration is prepared, the fact that bond strength between Ti and composite resin is relatively weak should be considered. PURPOSE: The purpose of this study is to evaluate the shear bond strength between the veneering composite resin and commercial pure (CP) Ti / Ti-6Al-4V alloy according to the method of surface treatment. MATERIAL AND METHODS: The disks were cast by two types of metal. Their surfaces were treated by sandblasting, metal conditioner, TiN coating and silicoating respectively. After surface treatment, the disks were veneered by composite resin (Tescera(TM), Bisco, USA) which is 5 mm in diameter and 3 mm in thickness. The specimens were stored in water at 25degrees C for 24 hours, and then evaluated for their shear bond strength by universal testing machine (STM-5(R), United Calibration, USA). These values were statistically analyzed. RESULTS: 1. All methods of surface treatment were used in this study satisfied the requirements of ISO 10477 which is the standard of polymer-based crown and bridge materials. 2. The metal conditioner treated group showed the highest value in shear bond strength of CP Ti, silicoated group, TiN coated group, sandblasted group, in following order. 3. The silicoated group showed the highest value in shear bond strength of Ti-6Al-4V alloy, metal conditioner treated group, sandblasted group, TiN coated group, in following order. CONCLUSION: Within the limitations of this study, all methods of surface treatment used in this study are clinically available.
Alloys
;
Calibration
;
Collodion
;
Crowns
;
Tin
;
Titanium
;
Water