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.Operative Indications for Hashimoto's Thyroiditis in Consideration of the Risk of Concurrent Thyroid Carcinoma.
Sung Lim CHOI ; Bong Ok YOO ; In Soo KIM ; Yoon Kyoo KIM
Korean Journal of Endocrine Surgery 2002;2(1):10-14
PURPOSE: This study was performed to further refine the indications for operative treatment of patients with Hashimoto's thyroiditis, and also to present the better histopathologic diagnosis method for Hashimoto's thyroiditis. METHODS: The authors evaluated retrospectively 130 patients with surgically proven Hashimoto's thyroiditis at presbyterian medical center in Chonju and Yonsei hospital in Masan from Jan. 1995 to Feb. 2002. RESULTS: The sensitivity of gun biopsy for the diagnosis of Hashimoto's thyroiditis was significantly higher than the one of fine needle aspiration (83.3% vs 46..2%, P<0.001). There were 26 cases (13.8%) of coexistent carcinoma of 130 patients. The incidence of carcinoma in men (6 in 9, 66.6%) was significantly higher than in women (20 in 121, 16.5%, P<0.05). The incidence of carcinoma in antithyroglobulin antibody negative group (8 in 10, 80%) was significantly higher than in antibody positive guoup (16 in 111, 14.4%, P<0.001). There was no significant difference in the incidence of carcinoma between positive and negative lymphadenopathy groups (22.6% vs 20.0%, P=0.681). As for ultrasonographic findings, patients with irregular-marginated dominant nodule or calcification had significantly higher incidence of carcinoma than those without so findings had (P<0.001). As for the distribution patterns of lymphocytes infiltration, the incidence of carcinoma in nodular or localized pattern groups is significantly higher than in diffuse group (24.5% vs 8.3%, P<0.05). CONCLUSION: For histopathologic diagnosis of Hashimoto's thyroiditis, gun biopsy is more sensitive than fine needle aspiration. And the incidence of concurrent carcinoma in patients with Hashimoto's thyroiditis is increased under the circumstances as follows: men, negative antithyroglobulin antibody results on serologic test, ultrasonographic findings such as irregular-marginated dominant nodule, increased vascularity or calcification, and nodular or localized patterns of lymphocytes infiltration on histopathologic examination.
6.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
7.The Effect of Non-Ionic Contrast Media on Q-T Interval and ST-T Wave of ECG during Coronary Angiography.
Seok Yeon KIM ; Yong Deok JEON ; Yoon Bo YOON ; Yong Joon KIM ; Hong Soon LEE ; Soo Woong YOO ; Eon Soo MOON ; Sang Kyu SUNG ; Hak Choong LEE
Korean Circulation Journal 1994;24(4):624-632
BACKGROUND: During coronary angiography, some electrocardiographic changes occured due to contrast media, which do life threatening influences. METHODS: We compared the electrocardiographic changes which were induced by injection of three radiopaque contrast media during selective coronary angiography in 49 patients with chest pain. One of the contrast media was high osmolar ionic(Urografin_76) and the another was low osmolar ionic(Hexabrix) and the last was non-ionic(Ioversol). Electrocardiograms were obtained before, during and after selective coronary angiography. RESULTS: The changes of S-T segment or T were decreased in non-ionic group rather than high osmolar or ionic group. And there was significant Q-Tc interval prolongation among all three groups except comparision of low osmolar ionic contrast dye and non-ionic contrast dye in left coronary angiography. CONCLUSION: Non-ionic low osmolar contrast media was safer than high osmolar or ionic contrast medial because of lesser change of Q-Tc interval during selective coronary angiography.
Chest Pain
;
Contrast Media*
;
Coronary Angiography*
;
Diatrizoate Meglumine
;
Electrocardiography*
;
Humans
;
Ioxaglic Acid
;
Osmolar Concentration
8.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
9.Traumatic Pseudoaneurysm Related to Calcified Nodules of Cerebral Convexity Dura Mater in an American College Football Player.
Yoo Sung JEON ; Jong Gon LEE ; Young Il CHUN ; Joon CHO ; Woo Jin CHOE
Journal of Cerebrovascular and Endovascular Neurosurgery 2016;18(3):322-326
Repeated concussion is common among football players; however, these minor blunt head trauma rarely result in serious complications. We report a case of a young college football player who presented acute subdural hematoma, cerebral edema, and seizure due to pseudoaneurysm rupture. The pseudoaneurysm, located at the cortical branch of the middle cerebral artery, was speculated to be formed by dural calcification and adhesion with the underlying brain, possibly due to repeated concussions. Following successful excision of the pseudoaneurysm and control of brain swelling, the patient recovered without sequelae and was discharged after a short while.
Aneurysm, False*
;
Athletic Injuries
;
Brain
;
Brain Edema
;
Craniocerebral Trauma
;
Dura Mater*
;
Football*
;
Hematoma, Subdural, Acute
;
Humans
;
Middle Cerebral Artery
;
Rupture
;
Seizures
10.Effects of Amino Acids in Simple Phosphate-Free Media on Pregnancy Rate in Human In Vitro Fertilization and Embryo Transfer(IVF-ET).
Ji Sam LEE ; Jeong Eui HONG ; Seung Hwan YOO ; Goo Sung JUNG ; Ki Eon HONG ; Eun Suk JEON ; Young Mun HUR ; Jong In LEE
Korean Journal of Fertility and Sterility 1999;26(2):239-249
The role of amino acids in culture media for IVF-ET was examined in a total of 76 cycles. Patients received clomiphene citrate (CC) followed by hMG or GnRH-a combined with gonadotropins (FSH/hMG) for controlled ovarian hyperstimulation. Severe male (<4 x10(6) motile sperm) or age factor (>39 y) patients were excluded in this study. Pregnancy was classified as clinical if a gestational sac or fetal cardiac activity was seen on ultrasound. No significant differences were found in age, duration of infertility, follicle size, the level of E2 on the day of hCG injection, the mean number of oocytes retrieved, total motile sperm count, fertilization rate and the mean number of embryos transferred between bHTF (without amino acids) and mHTF (with amino acids) groups. However, total ampules of gonadotropins were higher (p<0.01) in mHTF group than bHTF group. Significantly (p<0.05) more clinical pregnancies were recorded in mHTF group (13/30) compared with bHTF group (9/46). The multiple pregnancy rates were 11.1% in bHTF group and 77% in mHTF group. There were one ectopic pregnancy in mHTF group and one heterotopic pregnancy in bHTF group. Abortion rates were 22.2% in bHTF group and 7.7% in mHTF, respectively The ongoing pregnancy or livebirth .ate was significantly (p<0.05) higher in mHTF group (12/30) than bHTF group (7/46). These results suggest that the addition of amino acids in culture media is essential for culture of zygotes in vitro and adjustment of energy substrates in phosphate-free culture media appears to be beneficial for human IVF-ET procedure.
Abortion, Induced
;
Age Factors
;
Amino Acids*
;
Clomiphene
;
Culture Media
;
Embryonic Structures*
;
Female
;
Fertilization
;
Fertilization in Vitro*
;
Gestational Sac
;
Gonadotropins
;
Humans*
;
Infertility
;
Male
;
Oocytes
;
Pregnancy Rate*
;
Pregnancy*
;
Pregnancy, Ectopic
;
Pregnancy, Heterotopic
;
Pregnancy, Multiple
;
Sperm Count
;
Ultrasonography
;
Zygote