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( Yun Jin Park ),( Mi Kyung Kong ),( Sang Wook Bai ) 대한산부인과학회 2018 대한산부인과학회 학술대회 Vol.104 No.-
Objective: The aim of this study was to investigate long term clinical outcome of simple excision of eroded mesh with vaginal estrogen for patients with mesh erosion after urogynecologic surgery. Methods: Medical records of patients who underwent excision of eroded mesh in outpatient clinic at Yonsei university hospital from 2007 to 2017 were reviewed. The size of defect of vaginal mucosa was smaller than 0.5cm in all patients. Vaginal estrogen was applied after mesh excision and pelvic examination was done within 3 months after procedure. Complete remission (CR) of mesh erosion was defined as no mucosal defect and no eroded mesh in pelvic examination. Results: During the study period, total 13 patients underwent simple excision of erode mesh. In baseline characteristics, mean age at diagnosis of mesh erosion was 55 and mean parity was 2 (range: 1-5). All patients had symptoms related to mesh erosion including vaginal discharge, bleeding and dyspareunia (n= 5, 5, 1). The initial operations causing mesh erosion were abdominal sacrocolpopexy (n=6) and midurethral sling (n=5). Mean time to initial surgery to mesh erosion was 40 months (range: 3-129) and mean length of follow-up period was 51 months. After diagnosis of mesh erosion, patients were diagnosed with CR at an average of 101 days (range: 5-365). During follow-up period, recurrence of mesh erosion occurred to 6 patients (54.5%). Mean time to diagnosis of CR to relapse of mesh erosion was 39 months. All patients with recurrence of mesh erosion were also diagnosed with CR after excision of mesh and vaginal estrogen. None of the patients required further intervention. Conclusion: Long term follow-up results show that simple excision of eroded mesh with vaginal estrogen is safe and less invasive procedure to avoid surgery under general anesthesia. If patient is tolerable, small size of vaginal mesh erosion can be treated by simple excision with vaginal estrogen without further intervention.
Case Reports : A Case of Pulmonary Hemorrhage Associated with Henoch- Schonlein Purpura
Yun Su Sim,Moon Young Choi,Ji Young Oh,Jin Hwa Lee,Jin Wook Moon,Kyu Bock Choi,Jae Ho Ahn,Yoo Kyung Kim,Sun Hee Sung,Jung Hyun Chang 대한결핵 및 호흡기학회 2009 Tuberculosis and Respiratory Diseases Vol.67 No.3
Henoch-Schonlein purpura (HSP) is an immunologically mediated systemic vasculitis of small blood vessels that primarily involves the skin, gastrointestinal tract, joints and kidneys. HSP is a common vasculitic syndrome in children who, in most cases, achieve complete recovery. Pulmonary hemorrhage is a very rare manifestation of HSP. The authors present a case of a 46-year-old male presenting with pulmonary hemorrhage and renal involvement and the diagnosis of HSP. The patient responded to prednisolone therapy.
A Survey of Dental Caries in Mongolia in 2014
Sung-Wook Yun,Seung-Chul Shin,Yeon-Soo Chang,Ho-Kil Kim,Sun-Joo Sohn,Jung-Kyu Kim,Soo-Jung Park,Hyun-Jun Yoo,Ja-Won Cho 대한예방치과학회 2014 International Journal of Clinical Preventive Denti Vol.10 No.3
Objective: The authors had conducted the oral health survey of Mongolian people with dual methods as direct oral examination by trained dentists and indirect method through taking the intra oral photos of the subjects by use of Nikon digital camera, in order to interpretate the image for finding the caries states of the subject people. Methods: One thousand three hundred seven persons of subject were examined in this dental survey, and classified with age distribution as 5, 9, 12, 15, 20s, 40s, and 60s years old at urban area of Ulaanbaatar area and the others at the rural areas at Bornuur as steppe area and at Mandalgovi as desert area. Results: Primary decayed tooth (dt), primary filled tooth (ft), and primary decayed, filled tooth (dft) index of Mongolian 5 years old were calculated as 6.25±4.56, 1.09±2.17, and 7.34±4.69 as high in caries incidence without treatment. Permanent decayed tooth (DT), permanent filled tooth (FT), permanent decayed, missing, filled tooth (DMFT) index of Mongolian 12 years old were as 2.37±2.76, 0.29±0.93 and 2.93±3.11, as high caries incidence without early treatment, and 12.1% of DMFT rate, 77.7% of DMF rate as the most children have been caries experienced. Conclusion: Oral health promotion and early treatment of caries in public oral health plan were recommended to promote the oral health level of Mongolian people.
Compressive strength of the sealant according to use of the bonding agent and filler contained
Yun, Sung-Wook International Journal of Clinical Preventive Denti 2007 International Journal of Clinical Preventive Denti Vol.3 No.1
Objectives: The author has experimented for sealant retention in order to compare the binding force in the group with bonding gent and without it, by use of bonding agent between at the sealant material and tooth surface. Methods: 80 extracted premolar for Orthodontic treatment were collected and divided as 4 groups as 20 teeth in a group. Sealant with filler component with or without bonding agent and sealant without filler component with or without bonding agent, were processed by each group and the compressive strength was measured with the in order to compare the results of each groups. Results: The compressive strength in filler contained sealant with the bonding agent was revealed as 22.552 MPa and 18.266MPa in without the bonding agent, and it was significantly difference statistically(p<0.05) The compressive strength in without filler component sealant with the bonding agent was estimated as 22.085 MPa, otherwise 16.131 MPa in without the bonding agent, and it was significantly difference statistically(p<0.05). The compressive strength according to the use of the bonding agent was estimated as 22.319 MPa in bonding agent group and 17.199 MPa in without bonding agent group, and it was significantly difference statisticlly(p<0.01). The compressive strength according to the filler contained was revealed as 20.409 MPa in filler contained group and 19.109 MPa in no filler contained group and it was no significantly difference statistically(p>0.05).
Yun, Changhun,Choi, Jungmin,Kang, Hyun Wook,Kim, Mincheol,Moon, Hanul,Sung, Hyung Jin,Yoo, Seunghyup WILEY‐VCH Verlag 2012 ADVANCED MATERIALS Vol.24 No.21
<P><B>Digital‐mode organic vapor‐jet printing (D‐OVJP)</B> is demonstrated by producing a series of organic vapor jets. D‐OVJP not only inherits all the benefits of a conventional OVJP but also provides an advanced, straightforward control over organic deposition with a pixel‐to‐pixel precision. Digitally‐controlled film thickness and high‐performance thin‐film transistors are demonstrated with D‐OVJP, proving its potential applicability to organic electronics and related areas.</P>