1.Studies on expression of DNA topoisomerases genes and protooncogene c-Myc during hepatocarcinogenesis.
Byung Doo HWANG ; Sang Hee WON ; Ki Ryang KWON ; Kye Young KIM ; Dae Young KANG ; Sang Tae KWAK ; Kyoo LIM
Journal of the Korean Cancer Association 1993;25(5):636-650
No abstract available.
DNA Topoisomerases*
;
DNA*
2.Effects of Etomidate, Thiopental Sodium and Propofol on Intraocular Pressure Associated with Tracheal Intubation.
Kyu Sik KANG ; Kyung Ho BANG ; Ki Ryang AHN ; Jin Hyung KWON ; Jung Suk LEE
Korean Journal of Anesthesiology 2005;48(6):582-586
BACKGROUND: During ophthalmologic surgery, various intravenous anesthetic induction agents are used to prevent an intraocular pressure (IOP) increase. This study was designed to compare the effects of etomidate on IOP with those of thiopental sodium and propofol in patients receiving vecronium bromide, and in whom tracheal intubation was performed. METHODS: Forty-five patients undergoing elective surgery were ramdomized to receive etomidate 0.3 mg/kg (E group, n = 15), thiopental sodium 5 mg/kg (T group, n = 15) or propofol 2.5 mg/kg (P group, n = 15). IOP, systolic arterial pressure (SAP) and heart rate (HR) were measured before induction (B), after the adminstration of the induction agents (I1), before intubation (I2) and at 1, 2 and 3 mins after intubation (T1, T2 and T3). RESULTS: The IOP after I1 and I2 in the E , T and P groups were significantly lower than in group B (P < 0.05). The IOP at T1, T2 and T3 in the E, T and P groups were not found to be significantly different from group B. The IOP, SAP and HR at T1, T2, and T3 in the E, T and P groups were significantly higher than at I1 and I2 (P < 0.05). No significant differences were observed between the groups in term of IOP. The SAP and HR at T1, T2 and T3 in the P group were significantly lower than in the other two groups (P < 0.05). CONCLUSIONS: We concluded that etomidate, thiopental sodium and propofol may be useful induction agents for general anesthesia in ophthalmologic surgery but that they do not prevent IOP elevation during endotracheal intubation.
Anesthesia, General
;
Arterial Pressure
;
Etomidate*
;
Heart Rate
;
Humans
;
Intraocular Pressure*
;
Intubation*
;
Intubation, Intratracheal
;
Propofol*
;
Thiopental*
3.Pathologic Correlation To Internal Echogenicity of Atypical Breast Fibroadenoma.
Nariya CHO ; Ki Keun OH ; Ryang KWON ; Jae Ho HAN ; Woo Hee JUNG ; Hy De LEE
Journal of the Korean Radiological Society 1998;39(1):185-191
PURPOSE: To understand the cause of atypical sonograpic findings by analyzing their pathologic correlation tointernal echogenicity of breast fibroadenoma. MATERIALS AND METHODS: Between January 1995 and April 1997, thepresence of 91 fibroadenomas in 81 patients was histopathologically proven. These mass lesions weresonographically interpreted and their descriptive criteria-internal echo content (both strength and homogeneity),the presence of septum, bilateral shadowing, and posterior echo pattern-were tabulated. A pathologist reviewedeach case and independently recorded the following data : cell type, the presence of septum, duct dilatation,calcification, fibrosis, hyalinization, and vascularity. We analyzed the correlation of sonographic withpathologic findings. RESULT: There was significant correlation between increased vascularity and increasedinternal echo strength and between increased fibrosis and decreased internal echo strength. There was nosignificant correlation between internal echo homogeniety or posterior shadowing and vascularity or stromalfibrosis, nor between hyalinization or cell type and internal echo strength, homogeneity or posterior shadowing.There was correlation between absent or thin capsule and the absence of bilateral shadowing. CONCLUSION: Increased vascularity or decreased stromal fibrosis might be the cause of atypical fibroadenoma.
Breast*
;
Fibroadenoma*
;
Fibrosis
;
Humans
;
Hyalin
;
Shadowing (Histology)
;
Ultrasonography
4.A case of systemic lupus erythematosus associated with Hashimoto's thyroiditis and aplastic anemia.
Oh Kyung KWON ; Jae Hoon JUNG ; Young Mo LEE ; Ki Ryang NA ; Deog Yeon JO ; Kang Wook LEE ; Young Tai SHIN
Korean Journal of Medicine 2006;70(6):715-718
We report a 45-year-old female who presented with azotemia, pancytopenia, pericardial effusion, hypothyroidism, decreased complement and positive ANA and was diagnosed as systemic lupus erythematosus (SLE). She referred to our hospital for the evaluation of azotemia. Bone marrow findings were compatible with aplastic anemia and Hashimoto's thyroiditis was diagnosed. After 3 days of methylprednisolone pulse therapy, the aplastic anemia responded and started to improve. She is visiting our clinic on a regular interval and showing good response to maintenance therapy. Hashimoto's thyroiditis is not rare in SLE, and aplastic anemia is relatively rare in SLE but, SLE that is combined with Hashimoto's thyroiditis and aplastic anemia simultaneously, has not been reported as far as our knowledge concerned. So, we report a case of successful treatment of SLE combined with Hashimoto's thyroiditis and aplastic anemia by steroid and thyroxine.
Anemia, Aplastic*
;
Azotemia
;
Bone Marrow
;
Complement System Proteins
;
Female
;
Hashimoto Disease
;
Humans
;
Hypothyroidism
;
Lupus Erythematosus, Systemic*
;
Methylprednisolone
;
Middle Aged
;
Pancytopenia
;
Pericardial Effusion
;
Thyroid Gland*
;
Thyroiditis*
;
Thyroxine
5.The Usefulness of Esophagogram with Marshmallow Bolus in Patients with Esophageal-Related Symptoms.
Sang Wook YOON ; Ki Whang KIM ; Hyo Jin PARK ; Eun Kyung KIM ; Jeong Sik YU ; Jung Kun SEO ; Ryang KWON ; Hyung Cheol SHIN
Journal of the Korean Radiological Society 1996;34(3):399-404
PURPOSE: To evaluate the usefulness of the esophagogram using marshmallow bolus in the evaluation of the causes of variable esophageal-related symptoms. MATERIALS AND METHODS: Esophagograms using marshmallow bolus were performed on 44 patients with esophageal-related symptoms and on ten normal volunteers. Video fluoroscopic studies were also made. Patients were classified into three groups according to their esophageal-related symptoms ; those with dysphagia, those with globus symptom, and those with chest pain. Abnormal findings on an esophagogram with marshmallow were graded into three categories ; mild, moderate, and severe. Provocation of the same symptom wasalso evaluated. Esophageal manometric studies were performed on 16 patients and those results were compared with the results obtained from the esophagogram using marshmallow bolus. RESULTS: The provocation rate of the same symptom was 33% in the first group, 47% in the second, and 24% in the third. The provocation rate was highest inthe second group. The provocation rate was also higher in patients with a severe degree of abnormality on anesophagogram using marshmallow bolus. Where there were abnormal findings, an esophagogram using marshmallow bolus showed a higher abnormality rate than did a conventional esophagogram. In cases showing abnormal findings on the esophageal manometric study, an esophagogram using marshmallow bolus showed a higher provocation rate and more severe abnormality than in cases showing normal findings on manometric study. CONCLUSION: An esophagogram using marshmallow bolus will a useful radiologic screening modality for the evaluation of patients with esophageal-related symptoms.
Althaea*
;
Chest Pain
;
Deglutition Disorders
;
Healthy Volunteers
;
Humans
;
Mass Screening
6.The Epidemiology of Cosmetic Treatments for Corneal Opacities in a Korean Population.
Ki Cheol CHANG ; Ji Won KWON ; Young Keun HAN ; Won Ryang WEE ; Jin Hak LEE
Korean Journal of Ophthalmology 2010;24(3):148-154
PURPOSE: To describe etiologies and clinical characteristics of corneal opacities leading patients to seek cosmetic treatments. METHODS: The medical records of 401 patients who presented for cosmetic improvement in corneal opacities between May 2004 and July 2007 were retrospectively reviewed. The following parameters were analyzed: age, gender, cause of corneal opacity, time course of the corneal disease, associated diseases, prior and current cosmetic treatments, visual acuity, location and depth of the corneal opacity, and the presence of either corneal neovascularization or band keratopathy. A single practitioner examined all patients. RESULTS: The most common causes of corneal opacity were ocular trauma (203 eyes, 50.6%), retinal disease (62 eyes, 15.5%), measles (38 eyes, 9.5%), and congenital etiologies (22 eyes, 5.5%). Prior treatments included iris colored contact lenses (125 eyes, 31.1%) and corneal tattooing (34 eyes, 8.46%). A total of 321 of 401 eyes underwent cosmetic treatment for corneal opacities. The most common treatment performed after the primary visit was corneal tattooing (261 eyes, 64.92%). CONCLUSIONS: This is the first study to investigate the causes and clinical characteristics of patients presenting for cosmetic treatment of corneal opacities rather than for functional improvement. Various cosmetic interventions are available for patients with corneal opacities, and these should be individualized for the needs of each patient.
Adolescent
;
Adult
;
Aged
;
Aged, 80 and over
;
Asian Continental Ancestry Group/*statistics & numerical data
;
Color
;
Contact Lenses/statistics & numerical data
;
Corneal Opacity/*ethnology/etiology/*therapy
;
Esthetics
;
Female
;
Humans
;
Male
;
Middle Aged
;
Retrospective Studies
;
Surgery, Plastic/*statistics & numerical data
;
Tattooing/statistics & numerical data
;
Young Adult
7.Comparison of the Detection Rate, Location and Amount of Retinal Nerve Fiber Layer Defect.
Young Rae ROH ; Ji Won KWON ; Young Keun HAN ; Won Ryang WEE ; Jin Hak LEE ; Ki Ho PARK
Journal of the Korean Ophthalmological Society 2011;52(2):210-215
PURPOSE: To compare the detection rate of the patients with retinal nerve fiber layer (RNFL) defect and the amount of RNFL defect according to the patients' age. METHODS: Retrospective chart reviews of 22,811 subjects, who visited the health care center from January 2009 to December 2009 were performed. The detection rate, location and average amount of RNFL defect and the proportions of the patients who were diagnosed with glaucoma through Humphrey visual field (HVF) test or determined as a glaucomatous optic disc were compared according to the patients' age. RESULTS: The proportions of the patients whose RNFL defect were detected was highest in the patients 60 years old or older (2.3%) and was statistically significant (p = 0.012). However, there was no significant difference among the other age groups (under 40 years: 1.7%, 40 thru 49 years: 1.5%, 50 thru 59 years: 2.0%). The proportions of the patients who were determined as glaucoma through the HVF test or glaucomatous optic disc were also highest in the patients 60 years old or older (1.4%), however, there was no statistically significant difference (p = 0.070) among the age groups (under 40 years: 1.1%, 40 thru 49 years: 0.9%, 50 thru 59 years: 1.2%). CONCLUSIONS: The RNFL defect is likely to be detected in subjects less than 40 years of age and the detection rate is similar to subjects in their 40's and 50's. The use of fundus photography to detect RNFL defect in a health care center is recommended in subjects under 40 years of age.
Delivery of Health Care
;
Glaucoma
;
Humans
;
Nerve Fibers
;
Photography
;
Retinaldehyde
;
Retrospective Studies
;
Visual Fields
8.Intravenous Patient-Controlled Analgesia Using Fentanyl after Nuss Procedure in Pediatric Patients Undergoing Pectus Excavatum Repair.
Ki Ryang AHN ; Ji Weon CHUNG ; Jin Hyeong KWON ; Kyu Sik KANG ; Jung Suk LEE ; Si Hyun YOO ; Seong Hak JUNG
Korean Journal of Anesthesiology 2005;49(5):624-629
BACKGROUND: Nuss procedure used in pectus excavatum repair is preferred, because of its excellent effect from the cosmetic point of view and improved pulmonary function, but it cause severe pain due to thoracic expansion after the operation. This study was designed to evaluate effective fentanyl dose using an intravenous patient-controlled analgesia (IV-PCA) pump for pain control following pectus excavatum repair in pediatric patients. METHODS: Sixty patients undergoing elective thoracic surgery were randomly assigned to received fentanyl 0.5microgram/kg/hr (Group I, n = 20), 0.7microgram/kg/hr (Group II, n = 20), and 1.0microgram/kg/hr (Group III, n = 20) via an IV-PCA pump (basal, 1 ml/h; bolus, 0.5 ml; lock out interval, 30 min) after operation. A blind observer evaluated each patient using the Children's Hospital of Eastern Ontario pain scale (CHEOPS) and the faces scale (FS). Incidences of side effects and pain control satisfaction were assessed at postoperative 48 hrs. RESULTS: There were no significant differences in CHEOPS or FS score between the groups the postoperative 48 hrs period. CHEOPS and FS scores at 4 and 8 hrs in groups II and III were significantly lower than in group I (P<0.05), but all groups showed lower CHEOPS and FS scores during the first postoperative 48 hrs. Satisfaction of pain control assessment by mothers was significantly higher in groups II and III than in group I (P<0.05). CHEOPS and FS scores were highly correlated with each other (P<0.001). CONCLUSIONS: We conclude that infusion of fentanyl at 0.5microgram/kg/hr using an IV-PCA pump is effective for pain control of 5 years of age or older after Nuss procedure.
Analgesia, Patient-Controlled*
;
Fentanyl*
;
Funnel Chest*
;
Humans
;
Incidence
;
Mothers
;
Ontario
;
Thoracic Surgery
9.Differential Diagnosis of the Pancreatic Diseases: Significance of Perivascular Changes at Celiac trunk andSuperior Mesenteric Artery on CT.
Ryang KWON ; Young Hwan KIM ; Ki Whang KIM ; Jeong Sik YU ; Ji Hyung KIM ; Dong Guk KIM ; Sung Il LEE ; Chang Soo AHN ; Sei Jung OH
Journal of the Korean Radiological Society 1998;38(3):503-506
PURPOSE: To classify perivascular change in the celiac trunk and SMA occurring in pancreatic disease and toevaluate its significance in differential diagnosis. MATERIALS AND METHODS: In 73 patients with pancreaticdisease (42, acute pancreatitis; 14, chronic pancreatitis; 17, panreatic cancer) abdominal CT findings wereretrospectively reviewed. We defined " infiltration" as linear or irregular density and "thickening" as presenceof a soft tissue mantle surrounding the vessel, and statistically evaluated the usefulness of these factors forthe differential diagnosis of pancreatic diseases. RESULTS: In 13/42 cases of acute pancreatitis (31%), 4/14 ofchronic pancreatitis (28.6%), and 6/17 of pancreatic cancer (35.3%), periceliac infiltration was observed; thefrequencies were not statistically significant (p=0.916). Peri-SMA infiltration was demonstrated in 9/42 of acutepancreatitis (21.4%), 4/14 of chronic pancreatitis (28.6%), and 5/17 of pancreatic cancer (29.4%); again, thesefrequencies were not statistically significant (p=0.758). Thickening of the celiac trunk and SMA was observed onlyin pancreatic cancer, in 3/17 (17.6%) and 7/17(41.2%) cases, respectively, with statistical significance (p<0.05). CONCLUSION: Thickening of the celiac trunk and SMA is a valuable finding in the differential diagnosis ofpancreatic inflammatory disease and pancreatic cancer. When applied to the differential diagnosis of pancreaticdisease, perivaseular change should be classified as either infiltration or thickening.
Diagnosis, Differential*
;
Humans
;
Mesenteric Arteries*
;
Pancreatic Diseases*
;
Pancreatic Neoplasms
;
Pancreatitis
;
Pancreatitis, Chronic
;
Tomography, X-Ray Computed
10.Comparison of Arterial and End-Tidal CO2 Tension by Position and Time Changes during Hip Replacement Arthroplasty in Elderly Patients.
Chun SooK KIM ; Jin Hun CHUNG ; Won SeoK CHAI ; Sun HaK LEE ; Jin Hyung KWON ; Soo Dal KWAK ; Ki Ryang AHN ; WooK PARK
Korean Journal of Anesthesiology 2001;41(5):560-567
BACKGROUND: Hip replacement arthroplasty (HRA) is highly traumatic and performed in a lateral position for several hours and dead-space ventilation may increase. So, the difference between arterial and end-tidal PCO2 was investigated depending on the changes in the patient's posture during HRA in elderly patients. METHODS: Forty-three patients scheduled for a HRA were divided into two groups; Adult Group (n = 21, A-Group) and Elderly Group (n = 22, E-Group). Mean arterial pressure (MAP), heart rate (HR), PaO2, PaCO2, and end-tidal carbon dioxide tension (P(ET)CO2) were simultaneously measured at 10 min after anesthesia in a supine position (S[10]), at 30 min intervals from 30 min (L[30]) to 180 min (L[180]) in a lateral position and at 10 min in a supine position after the end of surgery (ES[10]) in both groups. The PaCO2-P(ET)CO2 gradient (P[a-ET]CO2) and dead space ventilation (Vd/ Vt) were calculated. RESULTS: At S(10), P(a-ET)CO2 in the A- and E-Groups was 7.0 +/- 5.0 and 7.2 +/- 3.3 mmHg respectively. From L(30) to ES(10), the P(a-ET)CO2 and the ratio of Vd/Vt in both groups increased significantly and progressively (P < 0.05 vs the control value) and the slope in the E-Group rose two times as compared to that in the A-Group. The correlation coefficient between P(a)CO2 and P(ET)CO2 was very significant from S(10) to L(90) and ES(10) in the A-Group, and from S(10) to L (60) in the E-Group (P < 0.01). CONCLUSIONS: For maintaining adequate ventilation of the elderly patient during HRA, PaCO2 should be measured intermittently along with the position changes after anesthesia in addition to the constant monitoring of PETCO2.
Adult
;
Aged*
;
Anesthesia
;
Arterial Pressure
;
Arthroplasty, Replacement, Hip*
;
Carbon Dioxide
;
Heart Rate
;
Hip*
;
Humans
;
Posture
;
Supine Position
;
Ventilation