1.Factors and Treatments Influencing the Unilaterally Unerupted Maxillary Central Incisor
Hyojung CHOI ; Soonhyeun NAM ; Hyunjung KIM
Journal of Korean Academy of Pediatric Dentistry 2018;45(3):334-343
The purpose of this study was to investigate the cause of eruption disturbance in the maxillary central incisor and establish the effective treatment plan by analyzing the vertical distance, angulation of long axis and root development of the tooth with eruption disturbance using the cone-beam CT.The average age of 134 patients diagnosed with unilaterally impacted maxillary central incisor was 7.9 years old and the male was 2.1 times higher than the female. The most common cause of eruption disorder was physical obstruction, especially mesiodens and odontoma. Of the teeth with unilateral eruption disorder, 78 cases erupted spontaneously and 56 cases erupted non-spontaneously after removal of physical obstruction.The possibility of spontaneous or non-spontaneous eruption in the unilaterally impacted maxillary central incisor depended on several factors, such as vertical distance, angulation of long axis and root development of unerupted tooth. The spontaneous eruption of the impacted maxillary cental incisor was most frequent at the angulation of long axis of 50 to 90 degrees, which is similar to the angulation of long axis of the normally erupted maxillary central incisor. In addition, the spontaneous eruption period of impacted maxillary central incisor was more influenced by the vertical distance than the angulation of long axis and the root development. Most of the teeth that showed non-spontaneous eruption had orthodontic traction, and these teeth were usually erupted within about 12 months. The period treated with orthodontic traction was no statistical significance with the vertical distance, the angulation of long axis, and the root development.This study will provide information on the cause of unilaterally impacted maxillary cental incisor and help to establish the future treatment plan.
Cone-Beam Computed Tomography
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Female
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Humans
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Incisor
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Male
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Odontoma
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Tooth
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Tooth, Impacted
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Tooth, Unerupted
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Traction
2.Recurrent Cerebral Infarction in Polycythemia Vera.
Sang Hwa LEE ; Jinsan LEE ; Hyojung NAM ; Sung Hyuk HEO ; Dae Il CHANG
Journal of the Korean Neurological Association 2013;31(4):266-269
Polycythemia vera (PV) is a chronic myeloproliferative disorder that is characterized by increased production of leukocytes, erythrocytes, and platelets. Arterial and venous thromobotic complications are common in the clinical course of this disorder. There have been a few reports of acute ischemic stroke with PV. A case of PV associated with progression of middle cerebral artery stenosis and recurrent ischemic stroke is presented herein.
Blood Platelets
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Cerebral Infarction*
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Constriction, Pathologic
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Erythrocytes
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Leukocytes
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Middle Cerebral Artery
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Myeloproliferative Disorders
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Polycythemia Vera*
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Polycythemia*
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Stroke
3.Association of Disaster Perception, Disaster Attitudes, and Communication Skills with Disaster Nursing Competence among Nurse Officers at Armed Forces Hospitals
Journal of Korean Academy of Fundamental Nursing 2022;29(2):202-210
Purpose:
This study aimed to examine the effects of disaster perception, disaster attitude, and communication skills on disaster nursing competence among nurse officers at armed forces hospitals.
Methods:
In this descriptive study, data were collected from 191 nurse officers at armed forces hospitals in Korea, using convenience sampling. Data were analyzed by conducting descriptive statistics, the independent sample t-test, one-way analysis of variance, the Scheffé test, Pearson correlation coefficients, and multiple regression analysis.
Results:
The mean scores for disaster perception, disaster attitude, communication skills, and disaster nursing competency were 73.02±7.66, 36.86±3.96, 57.97±6.39, and 52.88±7.66, respectively. Disaster perception was correlated with disaster attitude (r=.32, p=.002), communication skills (r=.46, p<.001) and disaster nursing competence (r=.40, p<.001). Disaster attitude was correlated with communication skills(r=.28, p<.001) and disaster nursing competence (r=.19, p=.008). Communication skills were correlated with disaster nursing competence (r=.50, p<.001). The factors influencing nurse officers’ disaster nursing competence were communication skills (β=.34, p<.001), disaster perception (β=.20, p=.003), experience in disaster education (β=-.20, p=.001), experience in disaster nursing work (β=-.14, p=.022) and working experience (β=.14, p=.033).
Conclusion
Disaster nursing competence had a positive correlation with recognition of communication skills, disaster perception, experience of disaster education, and experience of disaster nursing work.
4.Superior Rectus-Levator Palpebrae Complex Myositis Presenting as Isolated Painless Ptosis.
Dongwhane LEE ; Sung Hyuk HEO ; Ji Hoon LEE ; Young Nam KWON ; Hyojung NAM ; Jinsan LEE ; Key Chung PARK ; Tae Beom AHN ; Sung Sang YOON ; Dae Il CHANG ; Kyung Cheon CHUNG
Journal of the Korean Neurological Association 2013;31(4):286-288
No abstract available.
Blepharoptosis
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Myositis*
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Orbital Myositis
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Orbital Pseudotumor
5.Association between BRCA Mutation Status, Pathological Findings, and Magnetic Resonance Imaging Features in Patients with Breast Cancer at Risk for the Mutation.
Jae Myoung NOH ; Boo Kyung HAN ; Doo Ho CHOI ; Sun Jung RHEE ; Eun Yoon CHO ; Seung Jae HUH ; Won PARK ; Hyojung PARK ; Seok Jin NAM ; Jeong Eon LEE ; Won Ho KIL
Journal of Breast Cancer 2013;16(3):308-314
PURPOSE: We investigated the relationship between BRCA mutations, pathological findings, and magnetic resonance imaging (MRI) features in patients with breast cancer at risk for the mutation. METHODS: Genetic testing for BRCA mutations was performed in 275 breast cancer patients with at least one risk factor for the mutation. Using the breast imaging reporting and data system MR lexicon, morphological and kinetic features were reviewed on MRI scans of 230 tumors in 209 patients. The relationship between BRCA mutations, pathologic findings, and MRI data was examined, and disease recurrence was estimated. RESULTS: BRCA mutations were detected in 48 patients (23.0%), of which 21 (10.0%) were in BRCA1, and 25 (12.0%) in BRCA2. Additionally, two patients (1.0%) had mutations in both genes. Cancers in patients with BRCA1 mutations more frequently showed a higher nuclear grade (p=0.0041), and triple-negative (TN) phenotype (p<0.0001). On MRI scans, the cancers were seen as mass-type in 182 out of 230 lesions (79.1%), and nonmass type in 48 cases (20.9%). Among the features indentified by MRI, rim enhancement was significantly associated with molecular subtypes based on immunohistochemistry (p<0.0001), and nuclear grade (p=0.0387) in multiple logistic regression analysis. Rim enhancement on MRI, along with advanced pathologic N stage, was associated with increased disease recurrence (p=0.0023) based on multivariate analysis. However, the proportion of mass and nonmass tumors, and the distribution of morphological shape, margin, internal enhancement, and kinetic features assessed by MRI were not different according to BRCA mutation status. CONCLUSION: BRCA1 mutations were associated with aggressive pathological characteristics, and the TN phenotype. Rim enhancement was frequently seen on MRI scans of high-grade cancers and in the TN phenotype. And it was a significant predictor of disease recurrence. However, a direct association with BRCA mutations was not observed.
Breast
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Breast Neoplasms
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Genes, BRCA1
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Genetic Testing
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Humans
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Immunohistochemistry
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Information Systems
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Logistic Models
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Magnetic Resonance Imaging
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Magnetic Resonance Spectroscopy
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Magnetics
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Magnets
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Multivariate Analysis
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Phenotype
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Recurrence
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Risk Factors
6.Application of Dual Route Model in Reading Korean Words in the Acquired Dyslexic Patient after Stroke.
Sung Bom PYUN ; Hanyoung JUNG ; Kichun NAM ; Myeong Ok KIM ; Kyungduk CHO ; Jaebeom JUNG ; Hyojung SON
Journal of the Korean Academy of Rehabilitation Medicine 2005;29(1):23-31
OBJECTIVE: To investigate whether the dual route model is applicable to Korean word reading in acquired dyslexia after stroke. METHOD: Sixty-two year old patient with dyslexia after left inferior temporal and occipital lobe infarct was evaluated according to the lexical processing. After evaluation of general cognitive and language function, visual perception, semantic, and lexical stages were assessed. RESULTS: Visual perception was appropriate, and semantic categorization and picture-word matching tasks were 80.6% and 78.6% correct, respectively. Lexical decision task showed no significant differences within word classes, except shorter reaction time in reading words of Korean origin than those of chinese origin (p <0.05). The patient was able to read only 39.8% of tested words, and he could not read all the non-words. Reading of high frequency word was superior (65.4%) to that of low frequency words (10.9%) and semantic errors were not remarkable (p <0.05). CONCLUSION: The patient showed characteristics of recovery from deep to phonologic dyslexia with impairment of grapheme to phoneme conversion (GPC) route. These findings support that dual route model is applicable to Korean word reading.
Asian Continental Ancestry Group
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Dyslexia
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Dyslexia, Acquired
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Humans
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Language Disorders
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Occipital Lobe
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Reaction Time
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Semantics
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Stroke*
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Visual Perception