1.Study of Acid-Base in Arterial and Central Venous Blood during.
Min Sun JEON ; Hee Koo YOO ; Jae Chul SHIM ; Mi Ae CHEONG ; Jeong Woo JEON ; Sang Gu LEE
Korean Journal of Anesthesiology 2001;41(6):685-692
BACKGROUND: Although pulmonary artery catheters are useful to monitor hydration, these devices may be associated with severe morbidity and are not routinely used in kidney transplantation. A central venous pressure (CVP) catheter is preferred rather than a pulmonary artery catheter. Noninvasive continuous blood pressure monitors may substitute for intraarterial catheters, thereby preserving the radial artery in kidney transplantation patients should it be needed later to create an arteriovenous fistula. If there is a relationship between central venous and radial arterial blood for acid-base (pH, BE, HCO3(-)), we can use the blood sample from a CVP catheter instead of arterial blood from aradial artery catheter for testing acid-base and it can help patients. METHODS: A central venous catheter and radial artery catheter was inserted in 67 patients while undergoing kidney transplantation. To assess arteriovenous differences in acid-base status at operation start, before reperfusion of the transplanted kidney, after reperfusion, we measured the pH, BE and HCO3(-) simultaneously from the arterial and central venous circulation. RESULTS: Aacid-base using arterial and central venous samples at operation start, before reperfusion and after reperfusionb was evaluated. We found the relationship as follows: pH between arterial (pHa) and central venous blood (pHcv) in each: linear regression equation; pHcv = 0.668 + (0.906 X pHa), pHcv = 0.225 + (0.965 X pHa), pHcv = 0.646 + (0.908 X pHa), determination coefficient; 0.908, 0.926, 0.888, P values < 0.001 in each period. Base excess (BE) between BEa and BEcv in each period: linear regression equation; BEcv = 0.483 + (0.952 X BEa), BEcv = 0.032 + (0.939 X BEa), BEcv = 0.008 + (0.954 X BEa), determination coefficient; 0.844, 0.954, 0.962 P values < 0.001 in each period. HCO3(-) concentration between HCO3(-)a and HCO3(-)cv in each period: linear regression equation; HCO3(-)cv = 2.434 + (0.937 X HCO3(-)a), HCO3(-)cv = 2.093 + (0.942 X HCO3(-)a), HCO3(-)cv = 1.755 + (0.954 X HCO3 a), determination coefficient; 0.950, 0.925, 0.932 P values < 0.001 in each period. CONCLUSIONS: The acid base status of arterial blood is similar to that of central venous blood. Central venous blood gas values (pH, BE, HCO3(-)) may be an acceptable alternative to arterial blood gas values in kidney transplantation patients.
Arteries
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Arteriovenous Fistula
;
Blood Pressure Monitors
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Catheters
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Central Venous Catheters
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Central Venous Pressure
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Humans
;
Hydrogen-Ion Concentration
;
Kidney
;
Kidney Transplantation
;
Linear Models
;
Pulmonary Artery
;
Radial Artery
;
Reperfusion
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
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Arthroscopy
;
Biopsy
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Femoracetabular Impingement
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Femur Neck
;
Follow-Up Studies
;
Hip
;
Hip Joint*
;
Humans
;
Male
;
Osteochondroma*
;
Physical Examination
;
Recurrence
3.Histopathologic Correlation of Magnetic Resonance Image Findings in Ischemic Necrosis of the Femoral Head (INFH)
Choong Hee WON ; Sueng Baik KANG ; Bong Soon CHANG ; Geon SHIN ; Kyung Chul JEON ; Jin Sun YOO
The Journal of the Korean Orthopaedic Association 1996;31(3):499-505
Magnetic resonance image of INFH were correlated with histologic sections. Seventeen patients withe eighteen hips were included in this study. reoperative radiographs and MRI were taken for the patients. Three hips were in stage II, nine hips were in stage III, and remaining six were in stage IV respectively(Ficat and Alert). These hips were replaced with artificial joint and resected heads were examined. The specimens were bisected along the imaging plane, and studied histologically and matched with respective MR images of T1 and T2. Specimen MRI was performed on three femoral head immediately after femoral head removal. Necrotic portion of the femoral head in earlier stage showed higher signal intensity in T1-weighted image. Subchondral void, necrotic bone and saponified fat were responsible for low signal intensity in necrotic portion. Low signal band adjacent to the necrotic foci represented inner fibrous tissue and outer reactive sclerotic bone. Outside the fibrous band, the signal intensity diminished compared with normal fatty marrow. these findings were attributed by cellular infiltration and trabecular bony proliferation. MRI patterns were variable in various stages, but corresponded well with histologic findings.
Bone Marrow
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Head
;
Hip
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Humans
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Joints
;
Magnetic Resonance Imaging
;
Necrosis
4.Ultrasonographic Usefulness for Diagnosis of Acetabular Labral Tear.
Pil Sung KIM ; Heung Tae JUNG ; Yoo Sun JEON ; Mun Jong LEE ; Yoojin Jaejin PARK ; Deuk Soo HWANG
Hip & Pelvis 2013;25(3):189-196
PURPOSE: This study evaluated the usefulness of ultrasonography for a diagnosis of acetabular labral tear in femoroacetabular impingement (FAI). MATERIALS AND METHODS: From March 2010 to October 2011, an ultrasonographic examination was performed in 58 patients(58 hips: 26 men and 32 women) with acetabular labral tear. The sensitivity and positive predictive value of ultrasonography were evaluated for 58 cases with acetabular labral tear confirmed by hip arthroscopy. RESULTS: The sensitivity and positive predictive value for an acetabular labral tear using ultrasonography was 89.6% and 100%, respectively. The concordance rate of an acetabular labral tear between arthroscopy and ultrasonography was 84.6%. CONCLUSION: Hip ultrasonography can make a significant contribution to a pathologic diagnosis and isa useful diagnostic tool for acetabular labral tears.
Arthroscopy
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Femoracetabular Impingement
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Hip
;
Humans
;
Male
5.Arthroscopic Labral Repair Associated with Femoroacetabular Impingement: Short Term 2-5 Years Follow-up Results.
Yoo Sun JEON ; Deuk Soo HWANG ; Chan KANG ; Jung Mo HWANG ; Gi Soo LEE
Hip & Pelvis 2013;25(2):115-120
PURPOSE: The purpose of this study is to report on the short term follow-up of patients who underwent arthroscopic acetabular labral repair for femoroacetabular impingement and acetabular labral tear. MATERIALS AND METHODS: A total of 45 consecutive patients who underwent arthroscopic acetabular labral repair after diagnosis of femoroacetabular impingement and acetabular labral tear from January 2008 to December 2010 were included in this study. Modified Harris hip score (MHHS), VAS, Hip outcomes score (HOS), and patient satisfaction were used for evaluation of the clinical results. RESULTS: Patients included 22 males and 23 females, and the mean age of the patients was 33.0(range, 16-54) years old, and the mean follow up period was 26.7(range, 24-56) months. Of the clinical results, mean VAS score was 6.4 and 2.5 points before and after surgery, respectively, and mean MHHS score improved from 59.5 points before surgery to 85.4 points after surgery. Activities of daily living and sports-related activities of HOS were 58.3% and 51.2%, respectively, before surgery, and 83.0% and 79.8% after surgery. Revision arthroscopic surgery was performed on five cases(12.1%); labro-synovial adhesion, three cases, pull-out of suture anchor, one case, heterotropic ossification, one case. CONCLUSION: Arthroscopic acetabular labral repair is considered an effective treatment for femoroacetabular impingement and accompanying acetabular labral tear.
Activities of Daily Living
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Arthroscopy
;
Female
;
Femoracetabular Impingement
;
Follow-Up Studies
;
Hip
;
Humans
;
Male
;
Patient Satisfaction
;
Suture Anchors
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
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Breast Neoplasms*
;
Breast*
;
Diagnosis*
;
Female
;
Humans
;
Mammography
;
Needles
;
Sensitivity and Specificity
;
Ultrasonography
7.Comparison of Misoprostol vaginal application and Sulprostone with cervical laminaria tent insertion in mid-trimester termination of pregnancy.
Ho Young KIM ; Young Ryul CHOI ; Jae Gyung YOO ; Jae Joo LEE ; Jung Ho SONG ; In Soo HWANG
Korean Journal of Obstetrics and Gynecology 2001;44(1):31-35
OBJECTIVE: To compare the abortion time, success rate and efficiency of application of intravaginal misoprostol versus intracervical laminaria insertion and intravenous sulprostone administration for mid-trimester pregnancy termination. MATERIAL: Patients requesting termination of second trimester pregnancy were randomized into two groups. In Group I, the women were given 200 microg tablet of misoprostol placed in the posterior vaginal fornix. In Group II, the women were given laminaria insertion in cervical canal with intravenous sulprostone administration. Altogether 50 subjects were recruited with 25 women in each group. RESULTS: The mean interval from start of induction to vaginal delivery was 1480.84+/-37.73 minutes in Group I and 1236.16+/-77.59 minutes in Group II(p=0.232). The success rate of termination within 48 hours in Group I and Group II were 84%, 92%(p=0.384). There were no significant differences in the mean interval time and success rates. Measurement of blood loss(differs in hemoglobin between the admission and postabortive 24 hours) shows in Group I(1.0352+/-0.5774) and in Group II(1.5640+/-0.8976). Mean changes in hemoglobin level were significantly lesser in the misoprostol group(p=0.017). No serious complication occurred. CONCLUSION: Intravaginal misoprostol appears to be acceptably safe and effective agents for second trimester pregnancy termination.
Female
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Humans
;
Laminaria*
;
Misoprostol*
;
Pregnancy Trimester, Second
;
Pregnancy*
8.Hypoxia Increases the Expression of ICAM-1 in Cultured Human Synovial Fibroblasts.
Hyun Soon JEON ; Hong Sun BAEK ; Byung Yun HWANG ; Wan Hee YOO
The Journal of the Korean Rheumatism Association 2002;9(1):23-33
OBJECTIVE: Hypoxic conditions are thought to be exist in inflamed arthritic synovium.Several in vitro and in vivo studies indicate that hypoxia can initiate events that lead to pro-adhesive changes.Therefore,this study was designed to examine the effects of hypoxia on the expression of ICAM-1 by cultured human synovial fibroblasts. METHODS: Synovial fibroblasts were isolated from patients with RA and cultured at hypoxic condition.To quantify the expression of ICAM-1 mRNA in synovial fibroblasts,RT-PCR was performed.The levels of cytokines in culture supernatants were measured by ELISA.The activation of NF- Adhesives ; Anoxia* ; Cytokines ; Fibroblasts* ; Humans* ; Intercellular Adhesion Molecule-1* ; Interleukin-1 ; Lymphocytes ; RNA, Messenger ; Tumor Necrosis Factor-alpha
9.Endoscopic Band Ligation in Bleeding Dieulafoy's Lesions.
Kwon YOO ; Jeong Seop MOON ; Hee Sook KIM ; Young Bin JEON ; Jae Sun PARK
Korean Journal of Gastrointestinal Endoscopy 1999;19(4):537-544
BACKGROUND AND AIMS: The Dieulafoy's lesion is an unusual cause of massive gastrointestinal bleeding resulting from the erosion of an abnormally large submucosal artery. Surgical intervention was believed to be the best treatment in the past, but recently improvement of endoscopic techniques has made effective hemostasis possible in most cases of Dieulafoy's lesions. Therapeutic endoscopic hemostasis includes sclerotherapy, electrocauterization, laser coagulotherapy, clipping band ligation. The effectiveness of the endoscopic band ligation was evaluated in bleeding Dieulafoy's lesions. METHODS: Clinical characteristics, initial endoscopic findings, and effectiveness of band ligation in Dieulafoy's lesions were all analyzed. RESULTS: 1) The patients were 8 males and 1 female, and the mean age was 56.2 years. 2) The chief complaints were melena and hematemesis, and 2 cases had histories of recurrent gastrointestinal bleeding. 3) The diagnosis of Dieulafoy's lesion was possible in 7 of 9 patients (78%) at the initial endoscopy. 4) The lesions were mostly located in the fundus and the body, characterized mainly by protruding vessels in shallow erosion areas. 5) The initial band ligation was possible with successful hemostasis, but additional sclerotherapy was necessary in two cases. There were no complications related to the procedure, except a case of early band detachment. CONCLUSIONS: The Dieulafoy's lesion requires careful endoscopic observation for diagnosis, and endoscopic band ligation was an effective therapeutic option for bleeding Dieulafoy's lesions.
Arteries
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Diagnosis
;
Endoscopy
;
Female
;
Hematemesis
;
Hemorrhage*
;
Hemostasis
;
Hemostasis, Endoscopic
;
Humans
;
Ligation*
;
Male
;
Melena
;
Sclerotherapy
10.Working Memory Deficits in Ultra-High Risk for Psychosis and Schizophrenia.
Im Hong JEON ; Jong Suk PARK ; Jin Young PARK ; Hye Hyun CHO ; Se Jun KOO ; Eun LEE ; Suk Kyoon AN ; Sun Kook YOO
Korean Journal of Schizophrenia Research 2012;15(2):66-72
OBJECTIVES: The aim of this study was to investigate whether verbal and spatial working memory functions were impaired not only in patients with schizophrenia but also in people at ultra-high risk for first-episode psychosis. METHODS: Twenty-five patients (M 13, F 12) with schizophrenia (SPR), 21 people at ultra-high risk for psychosis (UHR)(M 10, F 11) and 19 normal controls (NC)(M 10, F 9) were recruited. The working memory was assessed by using the verbal and spatial n-back test. The working memory load increased incrementally from the 0-back to the 3-back condition. RESULTS: SPR performed significantly lower than NC and UHR in terms of hit rates of verbal and spatial n-back test. UHR subjects conducted significantly lower than NC and higher in trend-level than SPR in terms of hit rates of verbal and spatial n-back test. These differences were derived from the high working memory load (2-back and 3-back), not from the low working memory load (0-back and 1-back). There was no significant difference between the verbal and spatial n-back test across the three groups. CONCLUSION: These findings suggest that verbal and spatial working memory dysfunction may be general rather than differential in terms of stimuli modality, and this working memory deficit may be an important trait factor in schizophrenia.
Humans
;
Memory, Short-Term
;
Psychotic Disorders
;
Schizophrenia