1.Comparison of Heart Rate Variability Indices between Obstructive Sleep Apnea Syndrome and Primary Insomnia.
Ji Won NAM ; Doo Heum PARK ; Jaehak YU ; Seung Ho RYU ; Ji Hyeon HA
Sleep Medicine and Psychophysiology 2012;19(2):68-76
OBJECTIVES: Sleep disorders cause changes of autonomic nervous system (ANS) which affect cardiovascular system. Primary insomnia (PI) makes acceleration of sympathetic nervous system (SNS) tone by sleep deficiency and arousal. Obstructive sleep apnea syndrome (OSAS) sets off SNS by frequent arousals and hypoxemias during sleep. We aimed to compare the changes of heart rate variability (HRV) indices induced by insomnia or sleep apnea to analyze for ANS how much to be affected by PI or OSAS. METHODS: Total 315 subjects carried out nocturnal polysomnography (NPSG) were categorized into 4 groups - PI, mild, moderate and severe OSAS. Severity of OSAS was determined by apnea-hypopnea index (AHI). Then we selected 110 subjects considering age, sex and valance of each group's size [Group 1 : PI (mean age=41.50+/-13.16 yrs, AHI <5, n=20), Group 2 : mild OSAS (mean age=43.67+/-12.11 yrs, AHI 5-15, n=30), Group 3 : moderate OSAS (mean age 44.93+/-12.38 yrs, AHI 16-30, n=30), Group 4 : severe OSAS (mean age=45.87+/-12.44 yrs, AHI >30, n=30)]. Comparison of HRV indices among the four groups was performed with ANCOVA (adjusted for age and body mass index) and Sidak post-hoc test. RESULTS: We found statistically significant differences in HRV indices between severe OSAS group and the other groups (PI, mild OSAS and moderate OSAS). And there were no significant differences in HRV indices among PI, mild and moderate OSAS group. In HRV indices of PI and severe OSAS group showing the most prominent difference in the group comparisons, average RR interval were 991.1+/-27.1 and 875.8+/-22.0 ms (p=0.016), standard deviation of NN interval (SDNN) was 85.4+/-6.6 and 112.8+/-5.4 ms (p=0.022), SDNN index was 57.5+/-5.2 and 87.6+/-4.2 (p<0.001), total power was 11,893.5+/-1,359.9 and 18,097.0+/-1,107.2 ms2 (p=0.008), very low frequency (VLF) was 7,534.8+/-1,120.1 and 11,883.8+/-912.0 ms2 (p=0.035), low frequency (LF) was 2,724.2+/-327.8 and 4,351.6+/-266.9 ms2 (p=0.003). CONCLUSIONS: VLF and LF which were correlated with SNS tone showed more increased differences between severe OSAS group and PI group than other group comparisons. We could suggest that severe OSAS group was more influential to increased SNS activity than PI group.
Acceleration
;
Anoxia
;
Arousal
;
Autonomic Nervous System
;
Cardiovascular System
;
Heart
;
Heart Rate
;
Polysomnography
;
Sleep Apnea Syndromes
;
Sleep Apnea, Obstructive
;
Sleep Wake Disorders
;
Sleep Initiation and Maintenance Disorders
;
Sympathetic Nervous System
2.A Case of Crescentic Glomerulonephritis Superimposed on Membranous Glomerulonephropathy.
Baek Nam KIM ; Jin Won YOOK ; Ji Hong KIM ; Pyung Kil KIM ; Hyeon Joo JEONG
Journal of the Korean Society of Pediatric Nephrology 1999;3(1):95-99
Cytologic findings of pleural effusion in three cases of rhabdomyosarcoma are reported. Case 1 was a pleomorphic rhabdomyosarcoma which had devoped at the chest wall of an elderly male patient and caused pleural effusion. The cytologic features were consistent with pleomorphic rhabdomyosarcoma, that was, showing loose clusters, cellular pleomorphism, and abundant finely vesicular cytoplasm. Cases 2 and 3 were embryonal rhabdomyosarcomas in young adults. Primary site was the oral cavity in case 1, but unknown in case 2 and case 3. The effusion cytology was similar in these cases. Clustered or isolated small round cells with hyperchromatic nuclei and scanty cytoplasm were smeared. The cohesiveness of tumor cells was weak and the cells did not show linear arrangement or nuclear molding. Effusion cytology in a sarcoma patient would be diagnostic when the primary site and the type of sarcoma were already known.
Aged
;
Cytoplasm
;
Fungi
;
Glomerulonephritis*
;
Glomerulonephritis, Membranous*
;
Humans
;
Male
;
Mouth
;
Pleural Effusion
;
Rhabdomyosarcoma
;
Rhabdomyosarcoma, Embryonal
;
Sarcoma
;
Thoracic Wall
;
Young Adult
3.Comparative study of surface roughness between several finishing and polishing procedures on ormocer-based composite resin and nanohybrid composite resin.
Suk In JEONG ; Nam Sik OH ; Myung Hyeon LEE ; En Jung LEE ; Jung Hyeon CHO ; Sung Won JI
The Journal of Korean Academy of Prosthodontics 2008;46(2):105-115
STATEMENT OF PROBLEM: Proper finishing and polishing enhance both the esthetics and the longevity of restored teeth. Blade finishing technique would be suited for smoothing and finishing. Evaluation of this technique are necessary. PURPOSE: The purpose of this study was to evaluate the blade finishing and polishing procedures on the surface profile and roughness of ormocer-based composite resin and nanohybrid composite resin. MATERIAL AND METHODS: The material included a ormocer-based composite resin (Admira(R) & Admira(R) Flow); a nanohybrid composite resin (Grandio(R) & Grandio(R) Flow). One hundred forty specimens of each group were prepared using a mylar strip and randomly divied into blade finishing and rubber polishing groups (n=10). The average surface roughness (Ra) in micrometers was measured and the surface profile was examined by scanning electron microscopy (SEM) (Magnification X 200). The data were analyzed by Mann-Whitney Test at 0.05 significance level. CONCLUSION: The results of this study indicated that the mylar strip produced the smoothest surface on all materials and among the finishing-polishing methods was not significanct difference (P>0.05). Ormocer-based flowable composite resin performedthe lowest variability in initial surface roughness among the tested materials.
Composite Resins
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Esthetics
;
Longevity
;
Microscopy, Electron, Scanning
;
Polyethylene Terephthalates
;
Rubber
;
Tooth
4.The Reactions of Emergency Department Nurses to Violence: Q-Methodological Approach.
Eun Young PARK ; Ji Min SEO ; Hyeon Ok JU ; Eun Nam LEE
Journal of Korean Academy of Nursing 2007;37(5):762-771
PURPOSE: The purpose of this study was to identify the reactions of emergency department nurses to violence. METHODS: Q-methodology which provides a method of analyzing the subjectivity of each item was used. Thirty emergency department nurses classified 33 selected Q-statements into a normal distribution using a 9 point scale. The collected data was analyzed using the Quanl PC Program. RESULTS: Three types of reactions to violence were identified. The first type(emotional and physical reactions) showed a sense of regret on the selection of an occupation and emotional and physical reactions such as anxiety, fear, depression, hopelessness, heart palpitations and trembling hands due to the violence. The second type(problem solving) actively coped to prevent the occurrence of violence, grasped the causes of violence and sought out a problem solving plan. The third type(anger reactions) felt a lot of anger against violence, and resented their reality of working under conditions of inadequately secured facilities and systems. CONCLUSION: The emotional and physical reactions type and the anger reactions type should be required to attend educational programs to improve attitudes and abilities to solve the problems in a more active and positive manner.
Adult
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*Attitude of Health Personnel
;
Demography
;
*Emergency Nursing
;
Female
;
Humans
;
Interviews as Topic
;
Male
;
Nurses/*psychology
;
Q-Sort
;
*Violence
5.Revisiting Rhytisma lonicericola: Morphological Characterization and Molecular Phylogenetic Analysis
Bok-Nam JUNG ; Ji-Hyun PARK ; Hyeon-Dong SHIN
Mycobiology 2022;50(2):150-154
Rhytisma lonicericola was identified as a tar spot fungus on Lonicera sp. in 1902, and has since been recorded on several species of Lonicera in China, Japan, and Korea. Most of the previous records of R. lonicericola have been based on a list of disease occurrences in the absence of any formal morphological identification or molecular analyses. Using six newly obtained specimens collected in the past 2 years, we confirmed the tar spot fungus found on L. japonica in Korea as R. lonicericola based on morphological examinations and molecular phylogenetic analyses. This fungus was distinguished from R. xylostei, another tar spot fungus on Lonicera, by ascospore size and geographical distributions. We present detailed mycological information and, for the first time, DNA sequence data useful for the identification of R. lonicericola.
6.Comparison of the Predictive Validity of the Pressure Injury Risk Assessment in Pediatric Patients: Braden, Braden Q and Braden QD Scale
Ji Hyeon KANG ; Eun Young LIM ; Nam Ju LEE ; Hye Min YU
Journal of Korean Clinical Nursing Research 2024;30(1):35-44
Purpose:
The purpose of this study is to compare the predictive validity of pressure injury risk assessment, Braden, Braden Q and Braden QD for pediatric patients.
Methods:
Prospective observational study included patients under the age of 19 who were hospitalized to general wards, intensive care units of a children’s hospital.Characteristics related to pressure injury were collected, and predicted validity was compared by calculating the areas under the curve (AUC) of the Braden, Braden Q, and Braden QD scales.
Results:
A total of 689 patients were included in the study. A total of 13 (1.9%) patients had pressure injuries, and the number of pressure injuries was 17. Factors related to the occurrence of pressure injuries were 9 (52.9%) immobility-related and 8 (47.1%) medical device-related. The AUC for each scale was .91 (95% CI .89~.94) for Braden, .92 (95% CI .90~.95) for Braden Q, and .94(95% CI .92~.96) for Braden QD. The optimal cut-off points were identified as 16 for Braden (sensitivity=88.8%, specificity=86.4%), 17 for Braden Q(sensitivity=63.6%, specificity=94.9%), and 12 for Braden QD (sensitivity=94.4%, specificity=88.7%).
Conclusion
The Braden QD scale demonstrated the highest predictive validity for pressure injuries in pediatric patients and is expected to be valuable tool in preventing pediatrics pressure injuries.
7.The Effects of a Health Mentoring Program in Community-dwelling Vulnerable Elderly Individuals with Diabetes.
Ki wol SUNG ; Hye Seung KANG ; Ji Ran NAM ; Mi Kyung PARK ; Ji Hyeon PARK
Journal of Korean Academy of Nursing 2018;48(2):182-194
PURPOSE: This study aimed to estimate the effects of a health mentoring program on fasting blood sugar, total cholesterol, triglyceride, physical activity, self care behavior and social support changes among community-dwelling vulnerable elderly individuals with diabetes. METHODS: A non-equivalent control group pre-post-test design was used. Participants were 70 community-dwelling vulnerable elderly individuals with diabetes. They were assigned to the experimental (n=30) or comparative (n=30) or control group (n=28). The experimental group participated in the health mentoring program, while the comparative group participated in health education program, the control group did not participate in any program. Data analyses involved a chi-square test, Fisher's exact test, a generalized linear model, and the Bonferroni correction, using SPSS 23.0. RESULTS: Compared to the control group, the experimental and comparative groups showed a significant decrease in fasting blood sugar, total cholesterol, and triglyceride. Compared to the comparative and control groups, the experimental group showed significant improvement in self care behavior. However, there were no statistical differences in physical activity or social support among the three groups. CONCLUSION: These findings indicate that the health mentoring program is an effective intervention for community-dwelling vulnerable elderly individuals with diabetes. This program can be used as an efficient strategy for diabetes self-management within this population.
Aged*
;
Blood Glucose
;
Cholesterol
;
Diabetes Mellitus
;
Fasting
;
Health Education
;
Humans
;
Linear Models
;
Mentors*
;
Motor Activity
;
Self Care
;
Statistics as Topic
;
Triglycerides
;
Vulnerable Populations
8.Factors That Affect the Rehabilitation Duration in Patients With Congenital Muscular Torticollis.
Ah Young JUNG ; Eun Young KANG ; Sung Hoon LEE ; Doo Hyeon NAM ; Ji Hwan CHEON ; Hyo Jung KIM
Annals of Rehabilitation Medicine 2015;39(1):18-24
OBJECTIVE: To determine which factors affect the rehabilitation duration in patients with congenital muscular torticollis (CMT) and to predict the duration of rehabilitation and prognosis. METHODS: One hundred and eighteen patients (79 males and 39 females) who were diagnosed with CMT and received physical therapy were enrolled in this study. We retrospectively reviewed the information in terms of sex, gestational age, birth weight, methods of delivery, fetal presentation, age at diagnosis, the affected sternocleidomastoid (SCM) muscle site, SCM muscle thickness, ratio of muscle thickness on the affected side to that on the unaffected side (called the 'abnormal/normal [A/N] ratio'), and range of motion for cervical rotation and side bending. RESULTS: The SCM muscle thickness and A/N ratio had a positive linear relationship with the rehabilitation duration. Patients who were in the breech position needed longer rehabilitation. The birth weight and age at diagnosis were negatively correlated with the rehabilitation duration. However, the cervical range of motion, mass site, sex, gestational age, and methods of delivery were not correlated with the rehabilitation duration. CONCLUSION: Patients with a thicker SCM, lower birth weight, and history of breech delivery had a longer rehabilitation duration.
Birth Weight
;
Diagnosis
;
Female
;
Gestational Age
;
Humans
;
Labor Presentation
;
Male
;
Pregnancy
;
Prognosis
;
Range of Motion, Articular
;
Rehabilitation*
;
Retrospective Studies
;
Torticollis*
9.Difference of the Heart Rate Variability According to the Social Support Level in a County.
Yoo Shup SHIN ; Ji Sang BYUN ; Seok Hyeon KIM ; Jin Ho SHIN ; Bo Youl CHOI ; Jung Hyun NAM ; Dong Hoon OH
Korean Journal of Psychosomatic Medicine 2012;20(1):59-65
OBJECTIVES: The present study takes part of the agricultural district cohort study of a certain county located in Gyeonggido and aims to investigate the difference of the heart rate variability(HRV) according to the social support level. METHODS: We used data from 1727 participants of a health promotion program who are older than 40 years old. A physical examination, as well as a one-to-one interview to obtain sociodemographic characteristics, was performed with each participant. In addition, the participants completed the Medical Outcomes Study-Social Support Survey(MOS-SSS) for their the social support level to be assessed, and their HRV were measured to evaluate their autonomic function. The entire group was divided in two groups according to its MOS-SSS points to facilitate the research. Those who were evaluated as the high 25%(432 persons) were denominated as high social support (HSS) group and those who were evaluated as the low 25%(425 persons) were denominated as poor social support(PSS) group. RESULTS: The two groups showed significant differences on the sociodemographic factor such as mean age and gender composition(p<0.05). Comparing the indices related to the HRV, the HSS group had the following values higher than the PSS group : SDNN(F=4.938, p=0.027), TP(F=8.088, p=0.005), VLF(F=6.220, p=0.013) LF (F=3.873, p=0.049). CONCLUSION: According to the research, the PSS group showed dysfunction on their autonomic nervous system comparing to the HSS group. The social support helps an individual overcome difficulties, helps the adaptation during the changes of circumstances and in stressful situations it serves like a buffer. Based on that, it's possible to define that a low social support level gave an impact on the autonomic function. Also, using the fact that the HRV can evaluate the autonomic function in an objective view, it was possible to visualize that it has a potential to be used as an assistant factor to evaluate the social support.
Autonomic Nervous System
;
Cohort Studies
;
Health Promotion
;
Heart
;
Heart Rate
;
Physical Examination
10.A Case of Chronic Dacryocystitis Caused by Achromobacter Xylosoxidans.
Che Ron KIM ; Gyu Nam KIM ; Kyeong Hyeon KIM ; Ji Myong YOO ; Seong Wook SEO
Journal of the Korean Ophthalmological Society 2011;52(8):979-983
PURPOSE: To report a case of chronic dacryocystitis caused by Achromobacter xylosoxidans. CASE SUMMARY: A 73-year-old female was referred to our clinic for management of chronic dacryosyctitis from which she did not to recover despite empirical therapy. A. xylosoxidans was isolated from purulent discharge. Based on the results of susceptibility testing, therapy was changed to fortified ceftazidime eye-drop 6 times a day and intravenous tazocin 4.5 g/20 ml (piperacillin 2 g/tazobactam 0.25 g) 3 times a day. All symptoms were resolved after treatment with sensitive antibiotics and external dacryocystorhinostomy. CONCLUSIONS: To our knowledge, this is the first report of A. xylosoxidans dacryocystitis. A. xylosoxidans are rare but potential pathogens which cause dacryocystitis. The cultures and sensitivity test were collected and processed to detect the presence of unusual pathogens in a case with persistent infection despite conventional treatment.
Achromobacter
;
Achromobacter denitrificans
;
Aged
;
Anti-Bacterial Agents
;
Ceftazidime
;
Dacryocystitis
;
Female
;
Humans
;
Penicillanic Acid
;
Piperacillin