2.Hereditary Hemorrhagic Telangiectasia with Pulmonary Arteriovenous Fistula.
Heui Jeen KIM ; Young Soo YOON ; Jeong Kee SEO ; Hyung Ro MOON ; Kyung Mo YEON
Journal of the Korean Pediatric Society 1984;27(4):390-394
No abstract available.
Arteriovenous Fistula*
;
Telangiectasia, Hereditary Hemorrhagic*
3.Combined Clear Corneal Phacoemulsification and Pars Plana Vitrectomy.
Byung Ro LEE ; Jeong Hee HWANG ; Yoon Jung LEE
Journal of the Korean Ophthalmological Society 2005;46(7):1138-1143
PURPOSE: To report the technical effectiveness, outcome, and incidence of complications of combined clear cornea phacoemulsification with intraocular lens implantation and pars plana vitrectomy. METHODS: Single-center prospective, non-comparative, consecutive case series. Twenty-three eyes of 23 patients underwent combined clear cornea phacoemulsification and pars plana vitrectomy for various vitreoretinal disorders due to cataracts by a single surgeon between July 2003 and August 2004. Surgical feasibility, intraoperative and postoperative complications and outcome of clear cornea incisions in all combined procedure were evaluated. RESULTS: No significant adverse effect of clear corneal wound on pars plana vitrectomy procedures was noted in any of the patients. Operatively and postoperatively, no significant complications related to clear corneal wound were noted, even with the variations of pars plana vitrectomy procedures for cases with and without gas-fluid exchange and intravitreal tamponade. CONCLUSIONS: Clear corneal incisions is a safe and more reasonable alternative in combined phacoemulsification with intraocular lens implantation and pars plana vitrectomy. For a more comprehensive conclusion, a comparative study with scleral tunnel incisions may be necessary.
Incidence
4.Normal Humeral Head Retroversion Angle in Korean Measured with Semil - axial View.
Jung Ho PARK ; Jong Keon OH ; Kwang Suk LEE ; In Jung CHAE ; Seung Beom HAN ; Jeong Ro YOON
The Journal of the Korean Orthopaedic Association 1997;32(4):832-837
A reduced retroversion angle of humeral head may predispose to recurrent anterior shoulder dislocation and may also be a factor in persistent instability after soft tissue procedures. Rotation osteotomy of proximal humerus is one of many surgical modalities proposed for recurrent anterior shoulder dislocation. To support such an operation, fundamental knowledge of shoulder anatomy is essential. The semi-axial view by Soderlund have been regarded as simple and reliable method for measuring humeral head retroversion angle. The purpose of this study was to evaluate validity of the semi-axial view and to assess reference values for humeral head retroversion angle in Korean. Humeral head retroversion angle was determined from 80 healthy subjects, 48 men and 32 women. Radiographs which shown less than 10degrees between humeral shaft axis and epicondylar axis were defined as acceptable radiographs by Soderlund. Acceptable radiographs were selected and two orthopedic surgeons measured retroversion angle, separately. Acceptable radiographs were obtained in only 70 shoulders (43.8%). The mean angle was 35.2+/-8.24degrees for dominant hand and 32+/-6.27degrees for nondominant in Korean. The mean angle was 35.3+/- 7.78degrees for right side and 31.9+/-6.8degrees for left. The interobserver difference was 2.9degrees. The semi-axial view by Soderlund was not reproducible solely. But if correct arm position is considered, the method presented is easy to use daily.
Arm
;
Axis, Cervical Vertebra
;
Female
;
Hand
;
Humans
;
Humeral Head*
;
Humerus
;
Male
;
Orthopedics
;
Osteotomy
;
Reference Values
;
Shoulder
;
Shoulder Dislocation
5.Arthroscopic Ankle Fusion Using Two Medial Cannulated Screws.
Hak Jun KIM ; Taik Seon KIM ; Jeong Ro YOON ; Kyoung Soo KIM ; Haeng Kee NOH ; Kwang Sup YOON
Journal of Korean Foot and Ankle Society 2004;8(2):171-175
PURPOSE: We evaluated the clinical and radiological results of arthroscopic ankle fusion using 2 medial screws which had advantages of less morbidity, early weight-bearing and high union rate. MATERIAL AND METHODS: From April, 2002 to March, 2004, 8 patients who had ankle osteoarthritis were treated by ankle fusion using 2 medial screws under arthroscopy; five patients with post-traumatic osteoarthritis, two with post-infectious arthritis and one with paralytic foot. There were 5 male and 3 female. Average age was 67 years old ranging from 57 to 71 years. We evaluated them clinically preoperative and postoperative using AOFAS score, VAS pain scale and patient's satisfaction. In regard to radiological fusion, we checked them by simple AP, lateral and mortise view. Follow up period was average 11 months (range, 6~24 months). RESULTS: All ankles were successfully fused with 2 medial screws under arthroscopy. The mean time of fusion was 10.5 weeks (range, 8~14 weeks). Patient's satisfaction checked at 6 months after operation had favorable results (excellent and good 75%). One case had pain on medial malleolar area because of screw's protrusion. CONCLUSION: Arthroscopic ankle fusion using 2 medial screws was good modality of ankle fusion with less morbidity and early weight-bearing in some cases of ankle arthritis.
Aged
;
Ankle*
;
Arthritis
;
Arthritis, Reactive
;
Arthroscopy
;
Female
;
Follow-Up Studies
;
Foot
;
Humans
;
Male
;
Osteoarthritis
;
Weight-Bearing
6.Validation of the Algorithm for Bio-signal Data in Home-health Management Systems.
So Mi PARK ; Mi Jeong PARK ; Hyun KIM ; Oh Hyun KIM ; Young Ro YOON ; Sung Oh HWANG
Journal of Korean Society of Medical Informatics 2009;15(1):109-116
OBJECTIVE: The purpose of this study was to verify the algorithm on bio-signals for a home-health management system. METHODS: A methodological study was done to verify the blood pressure and blood sugar algorithm to deliver tailored patient information. The verifying process was as follows: Step 1; development of the algorithm through a literature review, Step 2; programming the algorithm using Microsoft SQL Server 2005 and Visual Studio 2005, Step 3; Reviewing of the algorithm by examining results from the home-health management system and experts' evaluation Step 4; evaluating the agreement of the algorithm by comparison between results from the home-health management system and intended results using bio-signal data set, and completion of the algorithm. RESULTS: Discordance rate between results from the home-health management system and intended results for blood pressure and blood sugar were 5.72% and 2.04%, respectively. Also, discordance rate between results from the home-health management system and experts' evaluation of blood pressure and blood sugar were 30.38% and 20.41%, respectively. All discordance were revised until all the researchers reached agreement. CONCLUSION: The home-health management system with an accurate algorithm on bio-signals can contribute to promote clients' health and reduce the cost of medical services.
Blood Glucose
;
Blood Pressure
;
Dataset
;
Humans
;
Methods
7.Clinical Significance of p16 Protein Expression Loss and Aberrant p53 Protein Expression in Pancreatic Cancer.
Joon JEONG ; Young Nyun PARK ; Joon Seong PARK ; Dong Sup YOON ; Hoon Sang CHI ; Byong Ro KIM
Yonsei Medical Journal 2005;46(4):519-525
Pancreatic cancer is a disease with poor prognosis mainly due to low resection rates and late diagnosis. To increase resectability and improve survival rates, a better understanding of pancreatic cancer pathogenesis and more effective screening techniques are required. New methods, such as genetic and molecular alterations, may suggest novel approaches for pancreatic cancer diagnosis and treatment. We immunohistochemically investigated 44 formalin-fixed, paraffin-embedded specimens of pancreatic ductal adenocarcinoma using monoclonal anti-p16 antibodies and monoclonal anti-p53 antibodies. The expressions of p16 and p53 proteins were compared using the Chi-square test with SPSS. Disease-free survival was analyzed using the Kaplan-Meier method, verified by the Log- Rank test. Loss of p16 expression was noted in 20 (45.5%) cases and aberrant p53 protein expression was detected in 14 (31.8%) cases. Loss of p16 expression was associated with a higher incidence of lymph node metastasis (p=0.040) and a more advanced stage (p=0.015), although there was no significant correlation between p16 expression and survival. Aberrant p53 protein expression correlated with histologic grade (p= 0.038). Disease-free survival rate was significantly lower in the aberrant p53 protein positive group compared to the negative group (p=0.029). From our results, we suggest that p53 is not a prognostic factor; however, p16 and p53 genes do play important roles in the progression of pancreatic ductal adenocarcinoma.
Adult
;
Aged
;
Female
;
Genes, p16
;
Genes, p53
;
Humans
;
Immunohistochemistry
;
Male
;
Middle Aged
;
Neoplasm Staging
;
Pancreatic Neoplasms/*chemistry/genetics/mortality/pathology
;
Protein p16/*analysis
;
Protein p53/*analysis
;
Sex Characteristics
8.Pancreaticoduodenectomy for Benign Disease.
Joon JEONG ; Min Soo KWON ; Dong Sup YOON ; Hoon Sang CHI ; Byong Ro KIM
Korean Journal of Hepato-Biliary-Pancreatic Surgery 2000;4(1):123-129
No abstract available.
Pancreaticoduodenectomy*
9.Long Term Results After Resection of the Discoid Meniscus in Children.
Hong Chul LIM ; Dong PARK ; Jeong Ro YOON ; Hack Jun KIM ; Soong Hyun JUNG
The Journal of the Korean Orthopaedic Association 2003;38(2):183-188
PURPOSE: We retrospectively reviewed the long term results of arthroscopic resection of the discoid meniscus in children and evaluated postoperative clinical symptoms and radiological changes. MATERIALS AND METHOD: The results of arthroscopic surgery in 27 symptomatic discoid menisci of 22 patients who were under 15 years old at the time of operation (average; 11 year 9 month old) were evaluated. Average follow-up period was 9 years 4 months (5 years-18 years 1 months). Clinical results were analyzed according to Ikeuchi's clinical grading system and radiological degenerative changes were classified according to Fairbank at the last follow-up. RESULTS: According to Ikeuchi's grading system, excellent results were obtained in 10 cases (37.0%), good in 12 cases (44.4%), fair in 5 cases (18.5%). No radiological change was observed in 1 case (3.7%), 1 radiological sign in 5 cases (18.5%), 2 radiological signs in 13 cases (48.1%) and more than 3 radiological signs in 8 cases (29.6%) in the last follow-up radiograph. No correlation between clinical results and radiological changes. CONCLUSION: Arthroscopic resection of discoid meniscus in children was effective at relieving symptoms over a follow up of more than 5 years, though radiological degenerative changes occurred. We recommend that follow up is resuired to determine whether the clinical results of knees in middle or older age groups will worsen.
Adolescent
;
Arthroscopy
;
Child*
;
Follow-Up Studies
;
Humans
;
Knee
;
Retrospective Studies
10.The Operative Treatment of Mid-Shaft Clavicular Nonunions: Intramedullary Fixation with Threaded Steinmann Pin and Bone Grafting.
Jeong Ro YOON ; Hak Jun KIM ; Taik Seon KIM ; Haeng Kee NOH
Journal of the Korean Fracture Society 2005;18(4):415-420
PURPOSE: To evaluate the clinical and radiological results of the treatment of mid-shaft clavicular nonunions using intramedullary fixation with threaded Steinmann pin and bone grafting. MATERIAL AND METHODS: In 16 patients treated with intramedullary fixation of threaded Steinmann pin and autogenous iliac bone grafting for the mid-shaft clavicular nonunions, 10 patients with follow-up over 1 year were investigated. All patients (10 clavicle fractures) underwent conservative treatment initially. The average age of patients was 56 years old (range, 18~70 years old). Eight cases were atrophic nonunions, two hypertrophic. A clinical assessment was evaluated postoperatively after 5 months according to the evaluation method of Kona et al. RESULTS: According to the evaluation method of Kona et al, four cases achieved excellent results, five cases good, and one case achieved a fair result. The average period until bony union was 9 weeks (range, 7~12.5 weeks) without infection, pin migration or breakage. One case showed skin irritation by lateral margin of Steinmann pin, which was subsided by pin removal after bony union. CONCLUSION: We obtained satisfactory results and have concluded that intramedullary fixation with threaded Steinmann pin and bone grafting could appropriately treat nonunions of the mid-clavicular fracture occurred after conservative treatment, because it minimizes soft tissue injury, gets relatively stable fixation and early ROM, predicts early bone union, facilitates pin removal under local anesthesia.
Anesthesia, Local
;
Bone Transplantation*
;
Clavicle
;
Follow-Up Studies
;
Humans
;
Middle Aged
;
Skin
;
Soft Tissue Injuries