No abstract available.
Dysmenorrhea* ; Female ; Humans ; Students, Nursing*

PURPOSE: The purpose of this study was to examine stress and social support according to Internet addiction in juveniles. METHOD: Subjects were middle and high school students in Daegu (N=492). Data were collected using a self-rating questionnaire including demographic data, which was the Korean versions of an Internet addiction scale, a stress scale and a social support scale. RESULTS: Stress and social support were significantly different according to Internet addition. Significant correlations were observed between Internet addiction and stress and between Internet addiction and social support. CONCLUSION: These results indicate that the more addictive to the Internet a student is, the more stress and the less social support he/she has. Therefore, further studies are needed to generalize these results and examine widely the effects of Internet addiction.
Daegu ; Humans ; Internet* ; Surveys and Questionnaires

PURPOSE: The purpose of this study was to examine internet addiction, self-esteem and loneliness in adolescents. METHOD: Subjects were middle and high school students in Daegu (N=486). Self-rating questionnaire included demographic data, the Korean version of Young internet addiction scale, self-rating self-esteem and loneliness scale. We have received the consent from teachers and students. RESULTS: Among the subjects, 34% was addicted and internet addiction was significantly different according to gender, record at school, economic status, attitude of mother, father, teacher and friend about internet. There were significant differences in self-esteem and loneliness according to internet addiction. Internet addiction, self-esteem and loneliness were related to each other. CONCLUSION: These results indicate that internet addiction would be changed according to gender, record at school, economic status, attitude of mother, father, teacher and friend about internet. Therefore, further studies are needed to generalize these results and examine widely the related variables of internet addiction.
Adolescent* ; Daegu ; Fathers ; Friends ; Humans ; Internet* ; Loneliness* ; Mothers ; Surveys and Questionnaires

PURPOSE: To suggest parameters on optical coherence tomography (OCT) implicating visual prognosis after macular hole surgery, foveal thickness and photoreceptor layer were assessed by OCT after successful closure of the macular hole. METHODS: Twenty-two eyes underwent macular hole surgery and were followed up 6 months or longer. Of these, 16 eyes which were closed without neurosensory retinal defect were enrolled. OCT and visual acuity were reviewed and collected retrospectively. The photorecepter layer was graded as 1 to 3 according to the relative area of degeneration in the 1-mm of foveal center. Correlations between visual acuity and OCT parameters including the grade of the photorecepter layer and the foveal thickness were statistically analyzed. RESULTS: Visual acuities of six eyes were 0.4 or greater. Visual acuity became stable by 20 weeks in the high acuity group and by 12 weeks in the low acuity group. The correlation between visual acuity and foveal thickness was weak (correlation efficiency: -0.15). The photoreceptor layer was graded as 1 in two eyes, 2 in three eyes and 3 in one eye among high acuity group, whereas the layer was graded as 1 in no eyes, 2 in two eyes and 3 in eight eyes among low acuity group. The difference in the number of eyes graded as 3 between the high and low acuity groups was statistically significant (p=0.035). CONCLUSIONS: The photoreceptor layer, using OCT, can be graded according to the area of degeneration. Functional outcome correlated with the grade of photoreceptor degeneration rather than foveal thickness.
Prognosis ; Retinal Perforations* ; Retinaldehyde ; Retrospective Studies ; Tomography, Optical Coherence* ; Visual Acuity*

PURPOSE: To determine risk factors contributing to the development of an epiretinal membrane after retinal detachment surgery. METHODS: The authors retrospectively reviewed the records of 294 eyes which underwent retinal detachment surgery between 2001 and 2004. Parameters including numbers and locations of retinal breaks, operation methods and associated abnormalities were compared between the eyes from which a postoperative epiretinal membrane was removed and the eyes from which the membrane was not removed. RESULTS: Fourteen eyes (4.8%) underwent epiretinal membrane removal during the follow-up period. The mean interval between the retinal reattachment surgery and the vitrectomy for epiretinal membrane was 184 days (range: 50~546 days). Retinal breaks were located superiorly in 12 eyes and inferiorly in 2 eyes. Regarding the number of breaks, 1 break was observed in 9 eyes, 2 breaks in 2 eyes, 3 breaks in 2 eyes and no breaks in 1 eye. Vitreous hemorrhages presented in 7 eyes (50%). Twelve eyes were phakic eyes and 2 were pseudophakic. The macula was detached in 9 eyes (64.3%). Procedures for retinal detachment were vitrectomy with gas tamponade in 8 eyes (57.1%) and scleral buckling with cryoretinopexy in 6 eyes (42.9%). CONCLUSIONS: Preoperative vitreous hemorrhage, superior location of retinal breaks, old age and scleral buckling with cryotherapy were determined to be significant factors for the postoperative development of an epiretinal membrane. Postoperative visual acuity increased in all cases. This study demonstrates that vitrectomy for epiretinal membrane results in an overall favorable functional outcome.
Cryotherapy ; Epiretinal Membrane ; Eye ; Follow-Up Studies ; Membranes ; Retinal Detachment ; Retinal Perforations ; Retinaldehyde ; Retrospective Studies ; Risk Factors ; Scleral Buckling ; Visual Acuity ; Vitrectomy ; Vitreous Hemorrhage

PURPOSE: To compare outcomes after diode laser photocoagulation between threshold and prethreshold retinopathy of prematurity (ROP). METHODS: The outcomes of 133 eyes of 80 infants who received laser treatment with diode laser were retrospectively evaluated. ROP stage was noted upon treatment. Of the eyes studied, 39 were classified as threshold and 94 were prethreshold, and these were further divided into type 1 (72 eyes) and type 2 (22 eyes). Outcomes among the groups were examined, as well as the effects of mean birth weight, gestational age, postconceptional age (PCA) at diagnosis, PCA at treatment, and the interval between diagnosis and treatment RESULTS: Three threshold eyes (7.7%) and 5 prethreshold eyes (5.3%) progressed to unfavorable outcomes. All 5 eyes with prethreshold disease were type 1. Mean birth weight and gestational age were not associated with prognosis. Unfavorable outcomes were related to lower PCA at diagnosis (p=0.022), lower PCA at treatment (p=0.008), and longer intervals between diagnosis and intervention (p=0.015), whereas neither birth weight nor gestational age significantly influenced outcomes. CONCLUSIONS: Unfavorable outcomes occurred in threshold and type 1 prethreshold ROP. Earlier treatment appeared to decrease the incidence of unfavorable outcomes.
Birth Weight ; Diagnosis ; Gestational Age ; Humans ; Incidence ; Infant ; Lasers, Semiconductor* ; Light Coagulation* ; Passive Cutaneous Anaphylaxis ; Prognosis ; Retinopathy of Prematurity* ; Retrospective Studies

PURPOSE: We compared the surgical outcomes of vitrectomy for proliferative diabetic retinopathy between younger and older groups. METHODS: We reviewed the data of 185 patients (227 eyes) who had undergone vitrectomy and endolaser photocoagulation and who were followed up for at least 6 months. We divided them into two age-based groups: less than 40 years of age (52 eyes), and more than 40 years of age (175 eyes). We compared preoperative status, surgical outcomes, and postoperative complications. RESULTS: Postoperative visual acuity improved in 75.0% in the younger group, and 68.6% in the older group, and the difference was not statistically significant. The proportion of eyes with good visual acuity of 0.6 or better was statistically significantly (Ed-confirm this addition) higher in the younger group (30.8%) than in the older group (17.1%). The proportion of eyes with postoperative visual acuity of no light perception was statistically significantly higher in the younger group. The visual acuity in the patients who lacked photocoagulation was poorer in the younger group. Postoperative recurrent vitreous hemorrhage, corneal epithelial defect, and additional operation rate was more prevalent in the younger group. CONCLUSIONS: We found no significant difference in the overall postoperative results between younger and older patients. Early panretinal photocoagulation and vitrectomy can be helpful to maintain visual function of young patients. Special care is needed to prevent postoperative complications.
Diabetic Retinopathy* ; Humans ; Light Coagulation ; Postoperative Complications ; Visual Acuity ; Vitrectomy* ; Vitreous Hemorrhage ; Young Adult

Adrenal venous malformation is an uncommon disease. We report a case of an incidentally diagnosed adrenal cystic mass during an evaluation for gastritis in a child. A 14-year-old girl admitted to our pediatric department for epigastric pain. After the gastroscopy, she was diagnosed with hemorrhagic gastritis. A 5.5 cm-sized cystic mass was incidentally found adjacent to her left adrenal gland during an ultrasound examination for evaluating her abdominal symptoms. She underwent laparoscopic surgery for the diagnosis and treatment of this cystic mass, which was confirmed to be venous malformation at pathologic diagnosis.
Adolescent ; Adrenal Glands ; Adrenalectomy ; Child* ; Diagnosis ; Female ; Gastritis ; Gastroscopy ; Humans ; Laparoscopy ; Ultrasonography

PURPOSE: To evaluate the inhibitory effect of tranilast on proliferation of cultured human keratocytes, and to investigate the apoptotic response and the cellular morphologic changes associated with tranilast in vitro. METHODS: Human corneal keratocytes were exposed to tranilast at a concentration of 0.05, 0.1, 0.2, 0.4, 0.8, 1.6, and 3.2 mg/ml for a period of 4, 24, and 48 hours. Evaluations were conducted with MTT-based-calorimetric assay for measuring the metabolic activity, flow cytometric analysis and fluorescent micrograph for assessing the apoptotic response, and inverted phase-contrast micrograph and electron microscopy for observing the morphologic changes. RESULTS: The inhibitory effect of human keratocyte proliferation was found to have a dose and time dependent pattern (p<0.05). In flow cytometry, the maximal apoptotic response developed at 0.8 mg/ml concentration after 4 and 24 hours of exposure time, and apoptotic cells were demonstrated in fluorescent micrograph. At higher concentration of Tratnilast, human corneal keratocytes were more swollen rather than having a spindle shape and being detached from the bottom of the dish. The damaged keratocytes had degenerative and apoptotic changes like the formation of phagolysosomal granule, marginal condensation in the nucleus, and bleb formation of the nuclear membrane. CONCLUSIONS: The apoptotic response of tranilast is concerned with the inhibitory effect of human corneal keratocyte proliferation. Therefore, tranilast shows promise in clinical use for the inhibition of postoperative excimer laser induced corneal opacity or haze with fewer side effects.
Apoptosis ; Blister ; Corneal Keratocytes* ; Corneal Opacity ; Flow Cytometry ; Humans* ; Lasers, Excimer ; Microscopy, Electron ; Nuclear Envelope

PURPOSE: The aim of this study is to describe our initial experience with magnetic resonance (MR)-guided biopsy and to determine the malignancy rate of additional lesions identified by MR only in Korean women with breast cancer. METHODS: A retrospective review identified 22 consecutive patients with breast cancer who had undergone MR-guided vacuum-assisted biopsies (VAB) of MR-only identified lesions from May 2009 to October 2011.We evaluated the rate of compliance, the technical success for MR-guided VAB and the MR imaging findings of the target lesions. VAB histology was compared with surgical histology and follow-up imaging findings. RESULTS: The biopsy recommendations for MR-only identified lesions were accepted in 46.8% (22/47) of patients. One of 22 procedures failed due to the target's posterior location. Among 21 MR-guided VAB procedures, the target lesions were considered as a mass in 12 cases and a nonmass enhancement in nine cases. VAB histology revealed malignancies in 14% (3/21) of cases, high-risk lesions in 24% (5/21) and benign lesions in 62% (13/21). Eleven cases (52%, 11/21) had a positive surgical correlation, and one of them was upgraded from atypical ductal hyperplasia to invasive ductal carcinoma. In the remaining 10 lesions, follow-up breast ultrasound and mammography were available (range, 15-44 months; mean, 32.1 months) and did not show suspicious lesions. The final malignancy rate was 19% (4/21). CONCLUSION: MR-guided VAB for MR-only identified lesions yielded a 19% malignancy rate in Korean women with breast cancer. MR-guided VAB helps surgeons avoid an unnecessary wide excision or additional excisional biopsy.
Biopsy* ; Breast ; Breast Neoplasms* ; Carcinoma, Ductal ; Compliance ; Female ; Follow-Up Studies ; Humans ; Hyperplasia ; Image-Guided Biopsy ; Magnetic Resonance Imaging ; Magnetic Resonance Imaging, Interventional ; Mammography ; Retrospective Studies ; Ultrasonography