1.Studies in Anemia of Infancy and Children During Hospitalization.
Tae Kyu HAME ; Jeong Sam JEON ; Kyu Chul CHOI ; Yong Mook CHOI ; Chang Il AHN
Journal of the Korean Pediatric Society 1988;31(10):1338-1345
No abstract available.
Anemia*
;
Child*
;
Hospitalization*
;
Humans
2.Quantitative Analysis of p53 Expression in Carcinoma of the Uterine Cervix.
Chi Seok AHN ; Eun Hwan JEONG ; Tae Soo LEE ; Rho Hyun SEONG
Korean Journal of Gynecologic Oncology and Colposcopy 1994;5(3):11-18
This studly was perormed 10 define the role of compulerized quantitative analysis in ewalualion for overexpression of p53 by immunohistochemistry. Total and ladeled cells wers counted automatically using commercially available software for color-image analysis. In 16 uterine cerwical carcinomas, the p53 ladeling index calculted bycomputerized5quantitatiwe analysis was 9.22%+/-8.70% and by visual analysis 5.90+/-6.51%. The present results suggest that the computerized quantitative analysis may be valuadle in objective interetation of immunohistochemical expression of p53 and reliable than conventional ways of visual analysis.
Cervix Uteri*
;
Female
;
Immunohistochemistry
3.The clinical significance of serum CA125 and CA19-9 levels in endometriosis.
Tae Jung KANG ; Hye Sung MOON ; Kyung Ah JEONG ; Hye Won JUNG ; Jung Ja AHN
Korean Journal of Obstetrics and Gynecology 2000;43(7):1181-1188
OBJECTIVE: Because endometriosis is difficult to diagnose and has a high recurrence rate after treatment, a reliable serum marker of endometriosis is necessary. Therefore, the aim of this study is to measure the serum levels of CA125 and CA19-9 in patients with endometriosis before and after treatment and during recurrence, and to assess the usefulness of these levels in the diagnosis, clinical follow up and prediction of recurrence in endometriosis. METHODS: Eighty-eight patients who visited the department of Obstetrics and Gynecology of Ewha Mokdong Hospital from January 1994 to December 1998 and were diagnosed as endometriosis by laparoscopy or explo-laparotomy were enrolled as subjects. A retrospective analysis of serum CA125 and CA19-9 levels at 1 month before and 3 to 6 months after initiation of treatment was done. RESULTS: The serum CA125 and CA19-9 levels of endometriosis group(81.0+/-252.5, 36.6+/-53.4 ; mean+/-2SD, U/ml) before treatment was significantly higher than control group(11.6+/-12.8, 9.4+/-8.6)(p<0.05). Overall sensitivity rate for CA125, CA19-9 levels and both was 53.4%, 42.9% and 64.3% respectively. The sensitivity rate for endometriosis, stage 3 and 4(85.4%, 55.0%) was significantly higher than that, stage 1 and 2(p<0.05). The serum CA125 level in endometriosis group showed a significant increment according to stages(p<0.05) while the serum CA19-9 level showed an increasing trend(p=0.055) and both levels decreased significantly after treatment(p<0.05). The serum CA125 level was also higher at recurrence after treatment(p<0.05). CONCLUSIONS: The serum CA125 and CA19-9 levels are a useful marker for diagnosing severity of disease, monitoring efficacy of treatment and predicting recurrence in endometriosis.
Biomarkers
;
Diagnosis
;
Endometriosis*
;
Female
;
Follow-Up Studies
;
Gynecology
;
Humans
;
Laparoscopy
;
Obstetrics
;
Recurrence
;
Retrospective Studies
4.Comparisons of the Oxygen Saturation Between Right Atrial and Pulmonary Arterial Blood Immediately After Emergence from Cardiopulmonary Bypass During Open Heart Surgery in Pediatric Patients.
Jeong Tae HWANG ; Kwang Won YUM ; Weon Sik AHN ; Sung Deok KIM
Korean Journal of Anesthesiology 1997;33(4):664-668
BACKGROUND: Mixed venous oxygen saturation (SO2) monitoring turned out to be invaluable in following up systemic cardiovascular status. But balloon-tipped flow-directed thermodilution catheter (Swan-Ganz catheter) insertion carries additional inherent risks other than those of central venous catheterization, and it costs much more expense than simple venous catheter. There has been a lot of papers which argue that central venous catheterization may substitute for the Swan-Ganz catheterization. In addition, it may be very difficult or impossible to insert the Swan-Ganz catheter in pediatric patients. This study was performed to determine whether Swan-Ganz catheterization might be replaced by the central venous catheterization in regards to SO2. METHODS: In 17 pediatric open heart surgery (OHS) patients, from the central venous catheter, the tip of which had been located in the center of right atrium (RA) and pulmonary artery, blood samples were drawn for gas analysis simultaneously, which was done immediately after emergence from cardiopulmonary bypass. RESULTS: There were no significant differences between RA blood and mixed venous blood gas analyses except oxygen saturation. The oxygen saturations of both were linearly correlated with each other. The relation was SO2=17 0.8 SRAO2 (R=0.77, p<0.05) CONCLUSIONS: It may be concluded that RA blood may be used for blood gas analysis in place of mixed venous blood immediately after pediatric open heart surgery.
Blood Gas Analysis
;
Cardiopulmonary Bypass*
;
Catheterization, Central Venous
;
Catheterization, Swan-Ganz
;
Catheters
;
Central Venous Catheters
;
Heart Atria
;
Heart*
;
Humans
;
Oxygen*
;
Pulmonary Artery
;
Thermodilution
;
Thoracic Surgery*
5.Magnetic Resonance Imaging on Postoperative Pain Syndrome.
June Kyu LEE ; Jae Sung AHN ; Je Taek JEONG ; Soon Tae KWON ; Whan Jeung KIM
The Journal of the Korean Orthopaedic Association 1999;34(1):127-133
PURPOSE: To determine the accuracy of MRI on postoperative pain syndrome (POPS), including early complications such as hematoma or infection. MATERIALS AND METHODS: Of the 54 patients with the POPS, we analyzed pre-operative MRI findings compared with operative findings on 39 patients, excluding nonunion, instability, metal failure and pseudarthrosis, who underwent an operation for POPS from December 1994 to June 1997. There were 25 men (64.1%) and 14 women (35.9%), aged from 16 to 68 years (average 44.5 years). They were divided into 5 subgroups and calculated for sensitivity, specificity and positive predictability. RESULTS: MRI accuracy in recurred disc was 84%, scar adhesion, recurred or developed stenosis, infection and hematoma was 100% for each overall accuracy of MRI was 93%. Average interval of reoperation in POPS was 3.2 years. In 21 cases (53.8%), symptoms persisted without pain-free interval after first operation. CONCLUSIONS: Early complications, including hematoma and infection, are easily detected with MRI. Especially if patient complains of severe leg pain or neurologic deficit, MRI is a good diagnostic tool. MRI is a useful method for evaluation of most cases of POPS, but it is limited in evaluating recurred disc or scar adhesion only in T1, T2 weighted image. Therefore, Gd-DTPA enhancement is necessary for an accurate diagnosis.
Cicatrix
;
Constriction, Pathologic
;
Diagnosis
;
Female
;
Gadolinium DTPA
;
Hematoma
;
Humans
;
Leg
;
Magnetic Resonance Imaging*
;
Male
;
Neurologic Manifestations
;
Pain, Postoperative*
;
Pseudarthrosis
;
Reoperation
;
Sensitivity and Specificity
6.Electron microscopic study on the motor control system of the brain of the head-irradiated rats II. ultrastructural study on the pineal gland of the head-irradiated rats.
Tae Seung CHO ; Nam Gil YANG ; E Tay AHN ; Jeong Sik KO
Korean Journal of Anatomy 1991;24(1):36-53
No abstract available.
Animals
;
Brain*
;
Pineal Gland*
;
Rats*
7.Lymphangiomatosis of Bone and Soft Tissue: A Case Report
Sang Rho AHN ; Seung Ho YUNE ; June Kyu LEE ; Tae Seong JEONG
The Journal of the Korean Orthopaedic Association 1987;22(3):770-774
A case of Lymphangiomatosis of the skeleton and soft tissue in a 23 years old woman is presented. Lymphangiomatosis are benign tumors formed of lymphatic vessel and like hemangiomatosis are probably best thought of as harmatomatous malformation. As term imply, the endothelial space in these lesions are lymph-rather than blood containing. Bone involvement are very rare condition that affect mainly the ilium and features a largely lytic pattern, consisting of tiny elliptical radiolucents slots. Treatment and Prognosis depend on the site and extent of involvement and progression. Although irradiation may be the treatment of choice, the lesions have not been usually successfully treated.
Female
;
Humans
;
Ilium
;
Lymphatic Vessels
;
Prognosis
;
Skeleton
8.Long-Term Clinical Follow-up in A Case of Takayasu's Arteritis Involving the Ostium of Left Coronary Artery after Ostioplasty.
Kyung Tae KANG ; Myung Ho JEONG ; Woo Kon JEONG ; Sang Hyun LEE ; Jay Young RHEW ; Jong Cheol PARK ; Young Keun AHN ; Jong Tae PARK ; Jeong Gwan CHO ; Byoung Hee AHN ; Sang Hyung KIM ; Jong Chun PARK ; Jung Chaee KANG
Korean Circulation Journal 2001;31(2):246-250
A 25-year-old woman presented with effort-induced chest pain. Physical examination revealed different blood pressures, 180/100 mmHg in right arm and 100/60 mmHg in left arm. Resting electrocardiogram was normal, but down-slope depression of ST segment more than 3 mm in V3-6, II, III, aVF developed at the stage 1 of treadmill exercise test. Stress Thallium-201 scan showed severe ischemia in the anteroseptal and lateral wall of left ventricle. Diagnostic coronary angiogram showed critical stenosis in the ostium of left main coronary artery. The left subclavian artery was occluded totally with well-developed collateral circulation. The patient underwent ostioplasty of left coronary ostium using pericardial patch, and her symptom improved after surgery. Follow-up coronary angiogram one year after surgery showed patent coronary artery ostium with good flow and myocardial perfusion improved on follow-up Thallium-201 SPECT. She has no major cardiac events during 7-year clinical follow-up.
Adult
;
Arm
;
Chest Pain
;
Collateral Circulation
;
Constriction, Pathologic
;
Coronary Vessels*
;
Depression
;
Electrocardiography
;
Exercise Test
;
Female
;
Follow-Up Studies*
;
Heart Ventricles
;
Humans
;
Ischemia
;
Perfusion
;
Physical Examination
;
Subclavian Artery
;
Takayasu Arteritis*
;
Tomography, Emission-Computed, Single-Photon
9.Stem cell maintenance in a different niche.
Jeong Mook LIM ; Ji Yeon AHN ; Seung Tae LEE
Clinical and Experimental Reproductive Medicine 2013;40(2):47-54
To overcome the difficulty of controlling stem cell fate and function in applications to regenerative medicine, a number of alternative approaches have been made. Recent reports demonstrate that a non-cellular niche modulating the biophysical microenvironment with chemical factors can support stem cell self-renewal. In our previous studies, early establishment was executed to optimize biophysical factors and it was subsequently found that the microgeometry of the extracellular matrix made huge differences in stem cell behavior and phenotype. We review here a three-dimensional, non-cellular niche designed to support stem cell self-renewal. The characteristics of stem cells under the designed system are further discussed.
Extracellular Matrix
;
Phenotype
;
Regenerative Medicine
;
Stem Cells
10.Agenesis of the Gallbladder.
Hyung Soo KIM ; Hyo Choon AHN ; Koo Jeong KANG ; Tae Jin LIM
Journal of the Korean Surgical Society 2000;58(1):138-143
Congenital absence of the gallbladder is a rare anomaly and an interesting subject. The overall incidence of gallbladder agenesis is said to approximately 0.035% to 0.065%. It is extremely difficult to make the correct diagnosis of gallbladder agenesis preoperatively in symptomatic patients because its clinical and radiological features are like those of cholecystitis, cholelithiasis, or choledocholithiasis in patients with anatomically normal biliary tracts. Gallbladder agenesis is suspected when the surgeon or the pathologist has failed to identify the gallbladder in its usual position but ectopic location or necrosis of the gallbladder from any causes should be ruled out. Recently, two cases of gallbladder agenesis were encountered in adult patients. We summarize our experience and give a brief review of the literature.
Adult
;
Biliary Tract
;
Cholecystitis
;
Choledocholithiasis
;
Cholelithiasis
;
Diagnosis
;
Gallbladder*
;
Humans
;
Incidence
;
Necrosis