In 1989, the Bethesda System (TBS) was introduced as an attempt to standardize cervical/vaginal reporting systems. TBS nomenclature was created for reporting cytologic diagnoses to replace the currently used Cervical Intraepithelial Neoplasia (CIN) and Papanicolaou Class System, which are deemed less reproducible. The name for preinvasive squamous lesions was changed to squamous intraepithelial lesion (SIL), subdivided into low-grade and high-grade types. TBS recommends a specific format for cytologic report, starting with explicit statement on the adequacy of the specimen, followed by general categorization and descriptive diagnosis. Pathologic and epidemiologic studies performed over last 10 years have provided evidence that human papillomavirus (HPV) plays a significant role in the development of cervical neoplasia. TBS corresponds not only to currently held views of the behavior of preinvasive lesions and their HPV distribution, but also to the current guidelines for clinical management.
Azathioprine* ; Body Fluids ; Cadherins ; Cervical Intraepithelial Neoplasia ; Diagnosis ; Epidemiologic Studies ; Humans ; Immunohistochemistry ; Nephritis* ; Nephrotic Syndrome* ; Purpura, Schoenlein-Henoch*

Carcinoid tumors are derived from the enterochromaffin cells of neural crest origin. Most are commonly found in the gastrointestinal (GI) tract. The rectum is the third most common site for GI carcinoids. Rectal carcinoid tumors make up 13.7% of all carcinoid tumors and the vast majority occurs in the sixth decade of life. Approximately 80% of rectal carcinoid tumors are less than 1 cm in size, limited to the submucosa without metastasis and can be safely treated by local excision. We report a case of rectal carcinoid tumor in a 13 year-old child that was successfully treated by endoscopic polypectomy.
Adolescent ; Carcinoid Tumor* ; Child* ; Enterochromaffin Cells ; Humans ; Neoplasm Metastasis ; Neural Crest ; Rectum

PURPOSE: The purpose was to identify the risk of drug use by adolescents. METHOD: The participants were 933 male students in the first grade of a high school in D city. The data were collected from Aug. 5th to Oct. 30th, 2004. The instrument was the High Risk Group Adolescent Drug User Screening Test (HIRIGADUST) developed by the Korea Adolescent Society (1996). The data were analyzed using SPSS. RESULTS: For substance use, 64.5% of the students answered that they had drunk, 40.3% that they had smoked, and 2.0% that they had tried drug use. For scores on HIRIGADUST regarding socio-demographic characteristics, there were significant differences depending on school type, personality, academic performance, economic status, and ability to talk with parents. For scores on HIRIGADUST regarding drug using-related characteristics, there were significant differences depending on drinking experience, frequency of drinking, amount of alcohol intake, smoking experience and number of cigarettes smoked. Of the students 27.2% students were in the high risk group. CONCLUSION: In schools, systematic and intensive assessment of drug use should be done, and if needed, a service system connected to clinics specializing in drug addiction should be established. Prevention education should be carried out continuously.
Adolescent* ; Drinking ; Drug Users ; Education ; Humans ; Korea ; Male* ; Mass Screening ; Parents ; Smoke ; Smoking ; Substance-Related Disorders ; Tobacco Products

PURPOSE: The purposes of the study were to determine the effects of AIDS education which includes discussion on knowledge, prejudice, social interaction, and intention for AIDS prevention in college students. METHOD: A convenience sampling method was used to collect data, and 136 university students participated in the study. One group pretest-post test design was used and questionnaire for measuring knowledge about AIDS and attitude to AIDS were administered before and after 100 minutes of AIDS education, The education program consisted of a 50-minute lecture with video aids and 50 minutes of small group discussion. Means, SD, and paired t-test with the SPSS program were used to analyze the data. RESULTS: There were significant increases in knowledge (p= .000) and social interaction (p= .002) after the education, but no significant changes in prejudice (p= .832) nor in intention for AIDS prevention (p= .074). CONCLUSION: AIDS education including discussion was found to be an effective method for improving knowledge and social interaction of college students. The results suggest that education which includes discussion sessions should be used with college students to improve social interaction with people who are HIV positive and enhance knowledge about AIDS.
Education* ; HIV ; Humans ; Intention* ; Interpersonal Relations* ; Prejudice* ; Surveys and Questionnaires

The purpose of this study was to evaluate the effect of oral environment on the strength of resin bracket wings by comparing fracture mode according to water immersion and thermocycling. Seventy-five resin brackets(Spirit MB, Ormco, California) were divided into three groups and treated for six months as follows; (1) untreated, (2) water immersion in distilled water at 37degrees C, (3) water immersion in distilled water at 37degrees C with total 2,100 times of thermocyeling taken 350 times each month. Fracture mode of the wing was tested on universal testing machine. In addition to resin brackets, 25 metal brackets were used as controls. Through the statistical analyses, following results were obtained. 1. Resin bracket wings showed significantly lower fracture strength than metal brackets(p<0.001). 2. Water immersion and water immersion with thermocycling groups showed significantly lower fracture strength than open air condition group(p<0.001). 3. Water immersion with thermocycling group showed significantly lower fracture strength than water immersion group(p<0.001). The above results sugg est that the mechanical property of resin bracket wing may be influenced by oral environment and further research is needed to improve the strength of the wing in the resin bracket.
Immersion* ; Water*

PURPOSE: To report a case of frosted branch angiitis (FBA) associated with Epstein-Barr virus (EBV) infection in a child. CASE SUMMARY: A 7-year-old boy presented with bilateral blurred vision. On ophthalmic examination, his best-corrected visual acuity was 20/25 in the right eye and 20/32 in the left eye. The pupils were equal, round, and reactive to light without a relative afferent pupillary defect. He had normal color vision in both eyes. Slit-lamp examination revealed no abnormalities in the anterior parts of the eyes. Fundoscopic examination revealed prominent white sheathing retinal vasculitis predominantly on the veins in all quadrants, as well as macular edema and irregular foveal reflex in both eyes. Fluorescein angiography showed normal blood flow, but late diffuse staining and leakage of the affected vessels. Spectral domain optical coherence tomography (SD-OCT) showed thickening of the vessel walls, swelling due to hyperreflective material, and hyperreflective retinal depositions. Serological tests and the serum polymerase chain reaction for EBV were positive. A diagnosis of FBA associated with EBV was made. He was treated with systemic acyclovir and steroids. The response was rapid, with improvement in visual acuity to 20/20 in both eyes by day 3. After 7 weeks, all clinical signs resolved and SD-OCT examination showed normal vessel wall thickness and the absence of hyperreflective depositions. CONCLUSIONS: EBV may present with FBA even in the absence of a systemic sign of primary EBV infection. Thus, EBV should be considered as the etiology of FBA.
Acyclovir ; Child ; Color Vision ; Diagnosis ; Epstein-Barr Virus Infections ; Fluorescein Angiography ; Herpesvirus 4, Human ; Humans ; Macular Edema ; Male ; Polymerase Chain Reaction ; Pupil ; Pupil Disorders ; Reflex ; Retinal Vasculitis ; Retinaldehyde ; Serologic Tests ; Steroids ; Tomography, Optical Coherence ; Vasculitis ; Veins ; Visual Acuity

Recently autogenous nerve graft was usually used for segmental defect of peripheal nerve injury. In case of inappropriate size or amount of donor nerve graft, there were many studies included nerve regeneration with special nerve conduit material. To compare the result of autogenous nerve graft with that of silicone tubing method in segmental defect of sciatic nerve, the experiments were carried out on adult rats with autogenous nerve graft on the left side and silicone tubing on the right side. The results were as follows; 1. Myelinated nerve fibers were larger in silicone tubing method than autogenous nerve graft at postop. 4 weeks. 2. There was no difference in nerve regeneration in both groups at postop. 12 weeks. 3. Some atrophic changes were showed in denervated muscles in both groups at postop. 4 weeks. Skeletal muscle changes between the two groups were meagre. 4. Perineural adhension was rare in silicone tubing group in contrast to autogenous nerve graft group. 5. Nerve Conduction Velocity was similar between autogenous nerve graft and silicone tubing method after 4 weeks postoperatively. In conclusion, this study suggests that silicone tubing can be useful method to repair the large nerve gaps and has a potential clinical utilization in large segmental nerve defect.
Adult ; Animals ; Autografts ; Humans ; Methods ; Muscle, Skeletal ; Muscles ; Nerve Fibers, Myelinated ; Nerve Regeneration ; Neural Conduction ; Rats ; Sciatic Nerve ; Silicon ; Silicones ; Tissue Donors ; Transplants

Purpose: : Exercise may prevent the worsening of chronic kidney disease (CKD) and progression of cardiovascular diseases in patients with CKD. This review aims to identify the best type of exercise modality and summarizes the beneficial effects of exercise on physical and renal function among older adults with pre-dialysis CKD. Methods: : A systematic search of PubMed, Embase, CINAHL, Cochrane Library, Web of Science, SCOPUS, and domestic database was performed for randomized controlled trials (RCTs) assessing the effect of exercise intervention on older adults with pre-dialysis CKD published until February 2023. A random-effects metaanalysis was conducted. The risk of bias was assessed using a Cochrane tool for assessing the risk of bias in RCTs (RoB 2.0). Results: : The systematic review included 11 RCTs (n = 591, average age 60.2–76), of which 8 could be included for meta-analysis. Exercise was significant in increasing peak oxygen consumption and knee muscle strength among physical functions, and also in improving glomerular filtration rate among kidney functions. Conclusion : Exercise has beneficial effects on physical and renal function among older adults with pre-dialysis CKD. In the future, it is necessary to verify the effectiveness of exercise by subdividing it by type, intensity, duration, and delivery.

Purpose: The prevalence and risk factors of neovascular glaucoma (NVG) after diabetic vitrectomy were evaluated. Methods: This retrospective study included 171 eyes of 141 patients who underwent diabetic vitrectomy in-hospital between March 2013 and July 2019 and were followed for >12 months postoperatively. Regardless of the presence or absence of neovascularization in the anterior segment, all patients received injections of intravitreal bevacizumab during vitrectomy. Patients with preoperative neovascularization in iris (NVI) or angle (NVA) received both intracameral and intravitreal bevacizumab injections. Data were collected regarding baseline demographics, preoperative best-corrected visual acuity, intraocular pressure, hypertension, NVG in the fellow eye, panretinal photocoagulation history, iris and angle neovascularization, and postoperative findings (e.g., rebleeding and residual retinal detachment). Results: In total, 141 patients and 171 eyes were included in the study, and the incidence of postoperative NVG was 5.85% (10 patients). Five patients (27.78%) with preoperative NVI or NVA developed postoperative NVG. Significant risk factors for postoperative NVG were preoperative NVA or NVI (odds ratio [OR] = 16.428, p = 0.003), shorter diabetic duration (OR = 0.853, p = 0.033), and the absence of preoperative panretinal photocoagulation (OR = 0.006, p = 0.035). Conclusions There is a high possibility of postoperative NVG in patients with preoperative NVI or NVA, a short duration of diabetes, and no preoperative panretinal photocoagulation. In such patients, close monitoring is required after diabetic vitrectomy.

Purpose: The purpose of this study was to evaluate the effect of axial length and anterior chamber depth in vitrectomy and intraocular lens intrascleral fixation with a fibrin adhesive. Methods: The study retrospectively reviewed 61 eyes of 61 patients, who were followed up for over 6 months after surgery. The patients were divided into three groups according to their axial length: group 1, < 22 mm; group 2, 22 to < 25 mm; and group 3, > 25 mm. The patients were further divided into three sub-groups according to their anterior chamber depth: group A, < 3.0 mm; group B, 3.0 mm to < 3.6 mm; and group C, > 3.6 mm. We measured and analyzed the best-corrected visual acuity, spherical value, cylindrical value, and spherical equivalent of each group before surgery and at 6 months postoperatively. Results: When comparing the groups preoperatively and postoperatively, the best-corrected visual acuity, spherical value, and spherical equivalent showed significant improvement in all groups (p < 0.05). The incidence of complications, such as haptic slippage and intraocular lens dislocation, increased with the axial length and anterior chamber depth. Conclusions The use of fibrin adhesive for intraocular lens intrascleral fixation improves visual acuity and reduces refractive error. Postoperatively, there was no significant change in cylindrical value. Because axial length and anterior chamber depth affect refractive error, both should be considered in correlation with the surgical method.