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Kang-neung, South Korea

Kim J.Y.,Catholic Kwandong University
Clinical and Experimental Reproductive Medicine | Year: 2012

The ovarian follicles develop initially from primordial follicles. The majority of ovarian primordial follicles are maintained quiescently as a reserve for the reproductive life span. Only a few of them are activated and develop to an advanced follicular stage. The maintenance of dormancy and activation of primordial follicles are controlled by coordinated actions of a suppressor/activator with close communications with somatic cells and intra-oocyte signaling pathways. Many growth factors and signaling pathways have been identified and the transforming growth factorbeta superfamily plays important roles in early folliculogenesis. However, the mechanism of maintaining the dormancy and survival of primordial follicles has remained unknown for decades. Recently, since the first finding that all primordial follicles are activated prematurely in mice deficient forkhead box O3a, phosphatidylinositol 3 kinase/phosphatase and tensin homolog (PTEN) signaling pathway was reported to be important in the regulation of dormancy and initial follicular activation. With these informations on early folliculogenesis, clinical application can be expected such as in vitro maturation of immature oocytes or in vitro activation of follicles by PTEN inhibitor in cryopreserved ovarian cortical tissues for fertility preservation. © 2012. THE KOREAN SOCIETY FOR REPRODUCTIVE MEDICINE. Source

The human papillomavirus (HPV) vaccination rate in Korea is very low because a school-based HPV vaccination program has not yet been introduced. This study was designed to assess HPV knowledge, compare the health beliefs toward HPV vaccination and intention to recommend HPV vaccination for girls and boys, and identify the factors influencing the intention to recommend HPV vaccination for girls and boys among Korean health teachers. A descriptive cross-sectional study design was employed, in which 757 health teachers who worked at elementary, middle, high, and special schools in Korea participated via an online survey. A self-administered, structured questionnaire was applied, which included items on sociodemographics, HPV awareness, HPV knowledge, perceived benefits, susceptibility, severity, and barriers toward HPV vaccination for girls and boys, and intention to recommend HPV vaccination for girls and boys. The rate of correct HPV knowledge items ranged from 5.2% to 89.2%; 23.4% of the health teachers answered that they had ever taught about HPV, 97% answered that both boys and girls should receive HPV vaccination, and 47.6% answered that the best time for HPV vaccination is when students are at middle school. There were differences regarding the perceived benefits (Z= -7.69, p< 0.001), perceived susceptibility (Z= -3.37, p= 0.001), perceived severity (Z= -4.13, p< 0.001), and perceived barriers (Z= -4.90, p< 0.001) toward HPV vaccination, and regarding intention to recommend HPV vaccination (Z= -15.21, p< 0.001) for girls and boys. Factors associated with the intention to recommend HPV vaccination for girls were the HPV vaccination status of the health teachers' children [odds ratio (OR) = 4.24, 95% confidence interval (95% CI) = 1.14-15.72], and the teachers' Pap-test experience (OR= 2.50, 95% CI = 1.05-5.91), perceived benefits (OR = 3.30, 95% CI = 1.26-7.40), perceived susceptibility (OR = 3.25, 95% CI = 1.58-6.68), and perceived barriers (OR = 0.51, 95% CI = 0.30-0.99); these factors for boys were the health teachers' career duration (OR = 1.61, 95% CI = 1.12-2.32), HPV knowledge (OR = 1.45, 95% CI = 1.01-2.09), perceived benefits (OR = 3.46, 95% CI = 2.27-5.26), perceived susceptibility (OR = 1.55, 95% CI = 1.04-2.29), and perceived severity (OR = 1.71, 95% CI = 1.15-2.56). General awareness of HPV should be increased and more specific information about HPV-including that related to vaccination of boys and men-should be provided for health teachers. Although a school-based HPV vaccine program has yet to be introduced in Korea, health teachers should possess general knowledge about HPV and HPV vaccination, and differences in attitudes and intentions related to HPV vaccination between girls and boys should be reduced. © 2012 Elsevier Ltd. Source

Yi S.-W.,Catholic Kwandong University
Journal of Preventive Medicine and Public Health | Year: 2013

Objectives: The aim of this study was to investigate the association between Vietnam experience including exposure to military herbicides and cancer incidence in Korean Vietnam War veterans. Methods: The cancer cases of 185 265 Vietnam veterans from January 1, 1992 to December 31, 2003 were confirmed from the Korea National Cancer Incidence Database. The age-adjusted incidence and standardized incidence ratios (SIRs) were calculated using the male population during 1992 to 2003 as a standard population. Results: The age-adjusted overall cancer incidence per 100 000 person-years was 455.3 in Vietnam veterans. The overall cancer incidence was slightly yet significantly lower in veterans (SIR, 0.97; 95% confidence interval, 0.95 to 0.99) than in the general population. The overall cancer incidence in enlisted soldiers was not lower (SIR, 1.00), whereas that in officers was significantly lower (SIR, 0.87) than in the general population. The incidences of prostate cancer and T-cell lymphoma in all veterans, and lung cancer and bladder cancer in enlisted soldiers, and colon cancer and kidney cancer in non-commissioned officers, and colon cancer, kidney cancer, and prostate cancer in officers, were higher than in the general population. The SIR for overall cancer among Vietnam veterans rose from 0.92 for 1992-1997 to 0.99 for 1998-2003. Conclusions: The overall cancer incidence in Vietnam veterans was not higher than in the general male population. Vietnam veterans and military rank subcohorts experienced a higher incidence of several cancers, including prostate cancer, T-cell lymphoma, lung cancer, bladder cancer, kidney cancer, and colon cancer than the general population. The SIR for overall cancer increased over time in Vietnam veterans. Copyright © 2013 The Korean Society for Preventive Medicine. Source

Koo Y.J.,Catholic Kwandong University
Surgical endoscopy | Year: 2011

Laparoscopic myomectomy rather than abdominal myomectomy has been well documented as a treatment option for uterine myomas. However, laparoscopic myomectomy has serious limitations in two of its steps: excision of myoma with strong traction and suturing of the uterine defect. These steps are a challenge even for experienced surgeons. The authors introduce a simple but highly effective technique for excision of myoma and suturing using standard instrumentation in laparoscopic myomectomy. After incision of the myometrium, the myoma pseudocapsule is separated by insertion of the dissector tip and scissors into the myoma. After completion of myoma enucleation, the surgeon makes a U-shaped hole of suture material with forceps for an interlocking suture, and the first assistant holds the stitch to maintain the suture tension throughout the repair. From February 2010 to August 2010, 43 patients with a diagnosis of uterine myoma underwent laparoscopic myomectomy by single surgeon using the aforementioned procedure. The mean diameter of the myoma was 6.3 cm (range, 4-9 cm), and multiple myomas were observed in 19 cases (44.2%). As a result, the mean operative time was 75.9 min (range, 35-155 min), and the hospital stay was 2.7 days (range, 2-5 days). The blood loss was 137.2 ml (range, 50-250 ml), and the hemoglobin decline on the first day after surgery was 1.5 mg/dl (range, 0.1-3.6 mg/dl). Postoperative fever higher than 37.7°C was the most commonly observed morbidity (ten patients, 23.3%). How- ever, no cases had conversion to laparotomy or major complications requiring reoperation or readministration during the mean follow-up period of 5.9 months (range, 3-9 months). Laparoscopic myomectomy can be performed easily and effectively by forceps insertion and continuous interlocking suture using standard instruments. Source

Catholic Kwandong University | Date: 2013-12-26

The present invention relates to a method for producing complex reality three-dimensional images and a system for same, the method comprising: (a) a step for determining first reality three-dimensional spatial coordinates for a three-dimensional image of a human body; (b) a step for determining second reality three-dimensional spatial coordinates for an image of an item of medical equipment; (c) a step for obtaining a three-dimensional image of the area surrounding the medical equipment, from an imaging means in the medical equipment, and determining third reality three-dimensional spatial coordinates for said image; (d) a step for examining an image that is at the same coordinates in the three kinds of three-dimensional spatial coordinates; and (e) a step for producing a complex reality three-dimensional image by selecting the one image that is at the same coordinates, if there is one image at the same coordinates, or selecting the necessary image or images from among a plurality of images, if there are multiple images at the same coordinates.

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