1.Fractures of the Carpal Scaphoid
Myung Chul YOO ; Dae Kyung BAE ; Jae Sung LEE ; Yong Suk JEON
The Journal of the Korean Orthopaedic Association 1983;18(5):999-1004
No abstract available in English.
2.Arthroscopic Resection of Osteochondroma of Hip Joint Associated with Internal Snapping: A Case Report.
Heung Tae JUNG ; Deuk Soo HWANG ; Yoo Sun JEON ; Pil Sung KIM
Hip & Pelvis 2015;27(1):43-48
A 16-year old male patient visited the hospital complaining of inguinal pain and internal snapping of right hip joint. In physical examination, the patient was presumed to be diagnosed femoroacetabular impingement (FAI) and acetabular labral tear. In radiologic evaluation, FAI and acetabular labral tear were identified and bony tumor associated with internal snapping was found on the posteromedial portion of the femoral neck. Despite of conservative treatment, there was no symptomatic improvement. So arthroscopic labral repair, osteoplasty and resection of bony tumor were performed. The tumor was pathologically diagnosed as osteochondroma through biopsy and all symptoms improved after surgery. There was no recurrence, complication or abnormal finding during 1 year follow up. Osteochondroma located at posteromedial portion of femoral neck can be a cause of internal snapping hip and although technical demands are challenging, arthroscopic resection can be a good treatment option.
Acetabulum
;
Arthroscopy
;
Biopsy
;
Femoracetabular Impingement
;
Femur Neck
;
Follow-Up Studies
;
Hip
;
Hip Joint*
;
Humans
;
Male
;
Osteochondroma*
;
Physical Examination
;
Recurrence
3.The Effect of L-arginine on Neointima Formation in a Rat Vascular Injury Model.
Doo Soo JEON ; Jae Hyung KIM ; Ki Dong YOO ; Jang Sung CHAE ; Soon Jo HONG ; Kyu Bo CHOI
Korean Circulation Journal 1997;27(12):1350-1360
BACKGROUND: The inhibitory effects of nitric oxide(NO) on platelet adhesion and vascular smooth muscle cell(VSMC) proliferation may have a possible role inhibiting development of neointima following balloon catheter induced injury. We tested the hypothesis that L-arginine, the precursor of NO, would attenuate neointima formation following balloon catheter induced injury via regulation of antagonistic balance between proliferation and apoptosis of VSMC. METHODS: Adult, male Sprague-Dawley rats(300 to 400g) were anesthetized with ketamine (100mg/kg intraperitoneally). The left common and external carotid artery were exposed. For endothelial denudation, 2mm angioplasty catheter was introduced through the left external carotid artery into the left common carotid artery. The catheter was inflated at I atm. and withdrawn three times. Animals were randomized to receive 2.25% L-arginine in their drinking water(n=14) or placebo(n=16) from 2 days prior to and 9 days following denudation. VSMC proliferation was quantified by immunohistochemical staining with an antibody to the proliferating cell nuclear antigen(PCNA). The cells undergoing apoptosis were identified by terminal nucleotidyl transferase-mediated nick end labeling(TUNEL) method and morphologic changes by computerized planimetry and transmission electron microscopy. RESULTS: 1) The neointimal area in injured arteries were significantly reduced in L-arginine supplemented animals compared with placebo group(p<0.05). 2) L-arginine administration significantly reduced the number of PCNA positive cells in neointima when compared with placebo at 9 days(p<0.05). 3) Positive TUNEL cells were not influenced by L-arginine supplementation. 4) On transmission electron microscopy, there were no cells showing characteristics of apoptosis in neointima. CONCLUSION: These results suggested that the inhibitory effect of L-arginine on neointima formation is due to reduced VSMC proliferation, but is not due to increased VSMC apoptosis at the early time period after initmal injur .
Adult
;
Angioplasty
;
Animals
;
Apoptosis
;
Arginine*
;
Arteries
;
Blood Platelets
;
Carotid Artery, Common
;
Carotid Artery, External
;
Catheters
;
Drinking
;
Humans
;
In Situ Nick-End Labeling
;
Ketamine
;
Male
;
Microscopy, Electron, Transmission
;
Muscle, Smooth, Vascular
;
Neointima*
;
Proliferating Cell Nuclear Antigen
;
Rats*
;
Rats, Sprague-Dawley
;
Vascular System Injuries*
4.A case of simultaneous bilateral tubal pregnancies following the ovulation induction and intrauterine insemination.
Jae Kyoung YOO ; Jae Ju LEE ; Jung Ho SONG ; Sung Chul JEON ; Ji Hoon KANG ; Sung KIM ; Cheol Hong PARK ; Dae Hyun CHO
Korean Journal of Obstetrics and Gynecology 2001;44(12):2372-2375
Bilateral tubal pregnancy is the least common type of all extrauterine pregnancies, 1:725-1:1580 of pregnancies are bilateral. Simultaneous tubal pregnancies have been reported in natural cycles, recently, after ovulation induction, assisted reproductive techniques. The high incidence of ectopic pregnancy assisted with ovulation induction continues to be a problem. Bilateral tubal pregnancy associated with the ovulation induction has been reported few cases of 3.0% to 6.0% in frequency. This paper describes a case of simultaneous bilateral tubal pregnancy after ovulation induction and intrauterine insemination in a 27 year old patient. The diagnosis was confirmed by laparoscopy performed 30 days after intrauterine insemination, which revealed bilateral tubal pregnancy and mild hyperstimulated ovaries. Bilateral salpingectomy was performed. With a review of the literature on this topic, diagnostic aspect and incidence and treatment options are discussed.
Adult
;
Diagnosis
;
Female
;
Humans
;
Incidence
;
Insemination*
;
Laparoscopy
;
Ovary
;
Ovulation Induction*
;
Ovulation*
;
Pregnancy
;
Pregnancy, Ectopic
;
Pregnancy, Tubal*
;
Reproductive Techniques, Assisted
;
Salpingectomy
5.Phenomenological Study on Aging of Women in 40's and 50's: Applying the Parse's Theory.
Ju Eun HONG ; Keong Jin DO ; Ru Mee HA ; Seok Bun JEON ; Sung Soun HUR ; Eun Kwang YOO
Korean Journal of Women Health Nursing 2014;20(1):48-61
PURPOSE: This study was done to explore the essence and meaning of the experience of 'aging,' as a process of 40's and 50's women in Korea by applying the Parse's Human Becoming theory (2002). METHODS: Data was collected from February to April, 2013, using the phenomenological research method. Data was collected through in-depth informal interview and analyzed following Colaizzi method. After IRB permission and informed consent from the participants, all interviews were recorded with MP3 recorder and transcribed for analysis. RESULTS: Data analysis revealed 112 of meanings, 33 key subject words, 8 subject phrases, and 4 categories. The main themes were elaborated as 'going down' ('Being changed of body and mind', 'Being considered on my identity'), 'going up' ('Being expanded of productive role', 'Being transcendent multi-dimensionally'), 'pausing' ('Becoming more thoughtful about family', 'Looking back'), 'going forward again' ('Age is just a number, 'Contemplating of life and death'). Experiences in aging among women in 40's and 50's enlightened with Parse's theory of Human Becoming in terms of 'going down', 'going up', 'pausing', 'going forward again' appeared simultaneously, rather than consecutively. CONCLUSION: Women in 40's and 50's require holistic nursing intervention with physical, psychological, socio-economical, and spiritual aspects, rather than focusing on problematic physical symptom relief and prevention of further conditions. It is recommended to develop various nursing intervention considering on different environment, type of experience, and level of human becoming, individually.
Aging*
;
Ethics Committees, Research
;
Female
;
Holistic Nursing
;
Humans
;
Informed Consent
;
Korea
;
Nursing
;
Qualitative Research
;
Statistics as Topic
6.Comparative Analysis between Immunochemotherapy and Target Therapy for Metastatic Renal Cell Carcinoma: Overview of Treatment-Related Adverse Events and the Dropout Rate in Korea.
Jee Han LEE ; Sung Goo CHANG ; Seung Hyun JEON ; Gyeong Eun MIN ; Koo Han YOO
Korean Journal of Urology 2010;51(6):379-385
PURPOSE: To comparatively analyze treatment-related adverse events and the treatment dropout rate between immunochemotherapy and target therapy in Korea. MATERIALS AND METHODS: Forty-nine subjects with metastatic renal cell carcinoma (21 target therapy recipients and 28 immunochemotherapy recipients) who underwent either 6-week cycles of sunitinib treatment (50 mg once daily for 4 weeks on and 2 weeks off) or 8-week cycles of immunochemotherapy (combination of interleukin [IL]-2, interferon [IFN]-alpha, and 5-fluorouracil [FU]) were enrolled. Treatment-related toxicity was objectively graded and quantitative analysis was performed with a scoring system. Patient compliance was categorized into three classes (1: administration as scheduled, 2: dose modification required, 3: discontinuation required). RESULTS: Compared with those of the immunochemotherapy group, subjects of the sunitinib-treatment group had higher occurrence rates of mucositis-stomatitis (43% vs. 10%), hand-foot syndrome (38% vs. 0%), diarrhea (33% vs. 14%), and hypertension (33% vs. 14%). According to the toxicity-grade-based scoring system, the total incidence and severity of toxicities were not significantly different between the two groups (p>0.05), whereas high-grade hematologic toxicities were more frequent in the immunochemotherapy group. The dropout rate of the immunochemotherapy group was significantly higher than that of the sunitinib group (administration as scheduled: 52% vs. 21%, p=0.026; discontinuation required: 19% vs. 50%, p=0.037). CONCLUSIONS: The results of this study are indicative of a comparable treatment-related toxicity profile of sunitinib and greater adherence to the treatment protocol in comparison with immunochemotherapy in patients with metastatic renal cell carcinoma (mRCC).
Carcinoma, Renal Cell
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Clinical Protocols
;
Diarrhea
;
Fluorouracil
;
Hand-Foot Syndrome
;
Humans
;
Hypertension
;
Immunotherapy
;
Incidence
;
Indoles
;
Interferons
;
Interleukins
;
Korea
;
Patient Compliance
;
Patient Dropouts
;
Pyrroles
7.Palliative Resection of Metastatic Brain Tumors Previously Treated by Stereotactic Radiosurgery.
Yoo Sung JEON ; Young Cho KOH ; Sang Woo SONG ; Joon CHO ; So Dug LIM
Brain Tumor Research and Treatment 2016;4(2):116-123
BACKGROUND: Therapeutic approaches to brain metastases include surgery, whole-brain radiotherapy, stereotactic radiosurgery (SRS), and combination therapy. Recently, postoperative or preoperative SRS draws more attention to reduce postoperative recurrence in brain metastases. The goal of this study is to review surgical outcome of patients who had been treated by SRS, and to discuss the effectiveness of preoperative SRS. METHODS: From 2009 to 2015, 174 patients were treated by SRS for brain metastases, and among these 50 patients underwent surgery. Eighteen patients underwent surgery after SRS, and 14 had oligometastases. The patients' median age at the time of surgery was 56 years (range, 34–84 years). The median follow-up duration was 16.5 months (range, 4–47 months). Pathological findings were classified as follows; radiation necrosis (Group I, n=3), mixed type (Group II, n=2), and tumor-dominant group (Group III, n=9). We compared surgical outcome in respect of steroid, mannitol dosage, Karnofsky performance scale, and pathological subgroups. RESULTS: The median overall survival was 11 months (range, 2–40 months). Six, 12 and 24 months survival rate was 64.3, 42.9, and 28.6%, respectively. Improvement of Karnofsky performance score was achieved in 50% after surgery. The overall survival of Group I (26.6 months) was longer than the other groups (11.5 months). Additionally the patients were able to be weaned from medications, such as steroid administration after surgery was reduced in 10 cases, and mannitol dosage was reduced in 6 cases. Time interval within 3 months between SRS and surgery seemed to be related with better local control. CONCLUSION: Surgical resection after radiologically and symptomatically progressed brain metastases previously treated with SRS seems to be effective in rapid symptom relief and provides an improvement in the quality of life. A short time interval between SRS and surgical resection seems to be associated with good local tumor control.
Brain Neoplasms*
;
Brain*
;
Follow-Up Studies
;
Humans
;
Mannitol
;
Necrosis
;
Neoplasm Metastasis
;
Quality of Life
;
Radiosurgery*
;
Radiotherapy
;
Recurrence
;
Survival Rate
8.Relationship between duration of hospital-acquired acute kidney injury and mortality: a prospective observational study.
Jinyoung YOO ; Ji Sung LEE ; Jiyeon LEE ; Jin Seok JEON ; Hyunjin NOH ; Dong Cheol HAN ; Soon Hyo KWON
The Korean Journal of Internal Medicine 2015;30(2):205-211
BACKGROUND/AIMS: New definitions of acute kidney injury (AKI) have recently emerged. Some studies have suggested that duration of AKI is an additional predictive parameter for mortality. Here, we evaluated whether AKI duration was predictive of long-term mortality in patients with hospital-acquired acute kidney injury (HAAKI). METHODS: We prospectively enrolled patients who developed HAAKI at an urban university hospital, from September 2007 to August 2008 and followed them until December 2011. Patients were divided into two groups by duration of the AKI (1 to 5 days vs. > or = 6 days), and long-term mortality was compared. RESULTS: HAAKI developed in 1.2% of patients during the enrollment period. The median follow-up period was 240 days (interquartile range, 53 to 1,428). In 42.3% of patients (n = 52), the AKI lasted 1 to 5 days, while it lasted > or = 6 days in 57.7% (n = 71). Survival analysis showed that a longer duration of AKI increased the risk of death. Long-term survival was significantly different in the two groups. CONCLUSIONS: The duration of AKI influenced mortality rates in hospitalized patients. Thus, AKI duration is a parameter affecting mortality in HAAKI.
Acute Kidney Injury/diagnosis/etiology/*mortality/therapy
;
Aged
;
Female
;
*Hospitalization
;
Hospitals, University
;
Humans
;
Kaplan-Meier Estimate
;
Male
;
Middle Aged
;
Prognosis
;
Proportional Hazards Models
;
Prospective Studies
;
Republic of Korea
;
Risk Factors
;
Time Factors
9.Can DITI Predict a Sequestered Lumbar Disc?.
Choong Seon YOO ; Byung Chan JEON ; Sung Woo SEO ; Hwa Dong LEE ; Han Kyu KIM ; Yong Soon HWANG ; Jea Gon MOON
Journal of Korean Neurosurgical Society 1996;25(1):138-143
The purpose of this study is to assess the usefulness of digital infrared thermographic image(DITI) in patients with surgically treated lumbar disc disease. A series of 480 patients with lumbar herniated disc was studied. The mean age of the patients was 37 years, with a range of 18 to 64 years. Of which 126 cases of chemonucleolysis. 18 cases of percutaneous endoscopic laser discectomy, and 336 cases of laminectomy with discectomy were performed. Among these patients, 336 cases of laminectomy were assessed by DITI preoperatively. The thermal differences(delta T) between the symptomatic and asymptomatic limbs were evaluated. We have categorized the types of herniations into 3 classes: 200 protruded, 99 extruded, and 37 sequestered. The thermal differences were classified into 3 groups: 177 patients had delta T < 0.5 degrees C, 74 patients had 0.5 degrees C < or = delta T < 0.8 degrees C and 85 patients had delta T > or = 0.8 degrees C. Among the group of patients with the sequestered disc, 30(i.e. 80%) had delta T > or = 0.8 degrees C. Among the surgically treated 336 patients, non-visualization of a part of the sciatic limb on preoperative DITI was the condition used to coin the term amputation sign by the authors. In the sequestered group, the "amputation sign" was observed in 28 cases(75%). We conclude that DITI can predict a sequestered disc disease, and it allows more precise indication regarding open surgery.
Amputation
;
Diskectomy
;
Extremities
;
Humans
;
Intervertebral Disc Chemolysis
;
Intervertebral Disc Displacement
;
Laminectomy
;
Numismatics
10.The Clinical Usefulness of 99mTc-MIBI Scintimammography in Diagnosis of Breast Cancer.
Sung Bong YOO ; Woo Chan PARK ; Hyung Sun SON ; Hae Myung JEON ; Jai Hak LEE
Journal of Korean Breast Cancer Society 2004;7(1):32-36
PURPOSE: Imaging studies for the diagnosis of breast cancer such as ultrasonography or mammography, play an essential role; however, it is well known that they have some limitations; the low specificity of ultrasonography and the low sensitivity of mammography, especially in the dense breasts of Korean women. Recently, 99mTc-MIBI scintimammography was introduced for the detection of breast cancer, and showed acceptable results in its diagnostic accuracy. In this study, the clinical usefulness of 99mTc-MIBI scintimammography was evaluated for the determination of a better imaging study for the diagnosis of breast cancer. METHODS: This study included 75 patients with breast masses, and 3 imaging studies were performed; mammography, ultrasonography and 99mTc-MIBI scintimammography and the results compared on the basis of the pathological reports from core needle or excisional biopsies of the patients. RESULTS: From the pathological reports of 75 patients, 45 cases were confirmed as malignant and 30 as benign diseases. Based on the pathological reports, the sensitivities of mammography, ultrasonography and 99mTc-MIBI scintimammiography were 62.2, 88.9, and 86.7%, and the specificites of 3 imaging studies were 90.0, 76.7, and 90.3% respectively. The positive predictive values were 90.3, 85.1, and 92.9% and the negative predictive values were 61.4, 82.1, and 81.8%, respectively. 99mTc-MIBI mammoscintigraphy showed a comparable sensitivity to ultra-sonography, and a similar specificity to mammography, in the diagnosis of breast cancer. CONCLUSION: Clinically, as a primary imaging tool, 99mTc-MIBI mammoscintigraphy showed acceptable results in the diagnosis of breast cancer. Considering the weak points of ultrasonography and mammography, 99mTc-MIBI mammoscintigraphy would be a very useful tool in the diagnosis of breast cancer.
Biopsy
;
Breast Neoplasms*
;
Breast*
;
Diagnosis*
;
Female
;
Humans
;
Mammography
;
Needles
;
Sensitivity and Specificity
;
Ultrasonography