1.Two cases of Aplastic Anemia Following Hepatitis.
Chang Yeol JEON ; Beyung Sang CHOI ; Hyeon Sook LEE ; Jung Soo KIM
Journal of the Korean Pediatric Society 1985;28(1):73-77
No abstract available.
Anemia, Aplastic*
;
Hepatitis*
2.Clinical Experience of Suprasellar Germ Cell Tumors.
Ho Yeol ZHANG ; Joong Uhn CHOI ; Sang Sup CHUNG ; Kyu Chang LEE
Journal of Korean Neurosurgical Society 1991;20(12):973-982
The germ cell tumors are classified to germinoma, immature teratoma, mature teratoma, choriocarcinoma, yolk sac tumor and embryonal carcinoma. We analyzed 10 cases of suprasellar germ cell tumors which had been treated at Yonsei Uviversity Hospital from 1980 to 1990. Results of our study were summurized as follows : Common clinical symptoms are diabetes insipidus, visual dysfunction, panhypopituitarism, etc. Therapeutic plan can be based on serum and CSF AFP and HCG level. Pretreatment and posttreatment bormonal evaluation were performed and hrmonal replacement were required in all patients. Germinoma showed good outcome but immature teratoma showed bad outcome by multisystem involvement. More advanced new chemotherapeutic and immunotherapeutic agents must be studied for this tumor.
Carcinoma, Embryonal
;
Choriocarcinoma
;
Diabetes Insipidus
;
Endodermal Sinus Tumor
;
Female
;
Germ Cells*
;
Germinoma
;
Humans
;
Neoplasms, Germ Cell and Embryonal*
;
Pregnancy
;
Teratoma
3.The Influences of Obesity on Bone Mineral Density in Children.
Ki Young CHANG ; Hye Jung YANG ; Young Kyu SHIN ; Sang Hee PARK ; Kee Hyoung LEE ; Ki Yeol LEE
Journal of Korean Society of Pediatric Endocrinology 2001;6(2):129-136
PURPOSE: Nutritional as well as genetic and hormonal factors play an important role in the bone mineralization during childhood and adolescence. There are several physical and metabolic changes in obese children, and these changes may influence on the mineralization of the skeleton. The studies about bone mineralization of obese children are rare and contradictory. This study was performed to evaluate the influence of childhood obesity on bone mineral density(BMD). METHODS: The BMD of 49 obese and 41 non-obese children were measured at lumbar spines(L2-L4) using dual energy X-ray bone absorptiometry. Then, the results were assessed and compared according to the degree of obesity and pubertal sex maturation. RESULTS: There were no significant differences in BMD between obese children and non-obese children(0.87+/-.19 g/cm2 vs 0.81+/-.13 g/cm2). BMD increased according to the Tanner' pubertal staging, and the most marked increment was observed at overt puberty. No sex difference in BMD was seen in both obese and non-obese children. BMD was highly correlated with age, height, weight and body mass index(BMI), but there was no significant correlation between BMD and osteocalcin. CONCLUSION: BMD of obese children was not significantly different from that of non-obese children, and BMD also was not changed according to the degree of obesity. These findings suggest that BMD is not influenced by obesity in children.
Adolescent
;
Bone Density*
;
Calcification, Physiologic
;
Child*
;
Humans
;
Obesity*
;
Osteocalcin
;
Pediatric Obesity
;
Puberty
;
Sex Characteristics
;
Sexual Maturation
;
Skeleton
4.The effect of recombinant human erythropoietin in the renal anemia of hemodialized patients.
Kyoung Saeng LEE ; In Saeng LEE ; Su Yong HAN ; Jang Sik CHOO ; Sang Yeol SUH ; Chang Sup SONG
Korean Journal of Medicine 1993;45(1):99-103
No abstract available.
Anemia*
;
Erythropoietin*
;
Humans*
5.Prognosis of Single Spinal Metastatic Tumors: Predictive Value of the Spinal Instability Neoplastic Score System for Spinal Adverse Events
Sam Yeol CHANG ; Jae Hong HA ; Sang Gyo SEO ; Bong Soon CHANG ; Choon Ki LEE ; Hyoungmin KIM
Asian Spine Journal 2018;12(5):919-926
STUDY DESIGN: This was a retrospective cohort study. PURPOSE: We evaluated the predictive value of the Spinal Instability Neoplastic Score (SINS) system for spinal adverse events (SAEs) in patients with single spinal metastatic tumor. OVERVIEW OF LITERATURE: The SINS system was developed to assess spinal instability in patients with single metastatic spinal tumor. However, the system’s potential predictive value for SAEs has been partially studied. METHODS: This system was applied to a retrospective cohort of 78 patients with single spinal metastatic tumors. The patients underwent surgical treatment and were postoperatively followed up for at least 2 years or until death. The attribution of each score and total SINS to SAE (vertebral compression fracture [VCF] and spinal cord compression [SCC]) occurrence was assessed using the Cox proportional hazards model. RESULTS: SAEs occurred on average 7 months after diagnosis of spinal metastasis. The mean survival rate post diagnosis was 43 months. Multivariate analysis using the Cox proportional hazards model revealed that the pain (p=0.029) and spinal alignment (p=0.001) scores were significantly related to VCF occurrence, whereas the pain (p=0.008) and posterolateral involvement (p=0.009) scores were related to SCC occurrence. CONCLUSIONS: Among the components of the SINS system, while pain and spinal alignment showed a significant association with VCF occurrence, pain and posterolateral involvement showed association with SCC occurrence.
Cohort Studies
;
Diagnosis
;
Fractures, Compression
;
Humans
;
Multivariate Analysis
;
Neoplasm Metastasis
;
Prognosis
;
Proportional Hazards Models
;
Retrospective Studies
;
Spinal Cord Compression
;
Survival Rate
6.Surgical Causes of Significant Intraoperative Neuromonitoring Signal Changes in Three-Column Spinal Surgery
Seung Myung WI ; Sang-Min PARK ; Sam Yeol CHANG ; Jeongik LEE ; Sung-Min KIM ; Bong-Soon CHANG ; Hyoungmin KIM
Asian Spine Journal 2021;15(6):831-839
Methods:
Multimodality IONM data, including somatosensory-evoked potentials (SSEP) and motor-evoked potentials (MEP), were reviewed in 64 patients who underwent three-column spinal surgery from 2011 to 2015. Surgical procedures included posterior vertebral column resection, pedicle subtraction osteotomy, total en bloc spondylectomy, piecemeal spondylectomy, and corpectomy with laminectomy (n=27) in three cervical, 34 thoracic, and 31 lumbar procedures.
Results:
Significant IONM signal changes occurred in 11 of 64 (17.1%) patients. SSEP and MEP were changed in 11 patients. Postoperative neurologic deterioration occurred in 54.5% (6 of 11) of the patients, and two of them were permanent. There was no postoperative neurologic deterioration in patients without significant signal change. Suspected causes of IONM data changes are as follows: adhesion/tethering, translation, contusion, and perfusion.
Conclusions
Based on the results of this study, to enhance neurologic safety in three-column spinal surgery, surgeons should pay attention to protect the spinal cord from mechanical insult, especially when the spinal column was totally destabilized during surgery, and not to compromise perfusion to the spinal cord in close cooperation with a neurologist and anesthesiologist.
7.Differentiation between Ovarian Fibroma and Subserosal Leiomyoma by MR Imaging.
Sang Yeol CHOI ; Jun Woo LEE ; Chang Won KIM ; Yong Woo KIM ; Suck Hong LEE
Journal of the Korean Radiological Society 2000;42(1):145-151
PURPOSE: To evaluate the findings and differential points of ovarian fibroma and subserosal leiomyoma, as seen on MR images. MATERIALS AND METHODS: The MR imaging findings of 31 surgically confirmed cases of ovarian fibroma(n=6) and subserosal leiomyoma (n=25 ; 28 lesions) were evaluated. Multiplanar T1- and T2-weighted and postcon-trast T1-weighted images were obtained using a 1.5T MR unit, and histologic examination was also performed. The MR findings were analyzed in terms of signal intensity, the presence and definition of margin, the histo-logic finding of hyperintense lesion on T2-weighted images, the presence of the bridging vessel sign, degree of enhancement, and the presence of ipsilateral ovary and ascites. RESULTS: Both fibromas and leiomyomas showed hypo-or isointensity compared with uterine myometrium on T1-weighted images and compared with skeletal muscle on T2-weighted images. The latter revealed intratu-moral hyperintense lesions in most cases of ovarian fibroma and subserosal leiomyoma. Three of four ovarian fibromas had a well defined margin after cystic change, but in 24 of 26 subserosal leiomyomas the margin was ill defined. The "bridging vessel sign" was visible only in subserosal leiomyomas (22/28), and in all cases the enhancement of ovarian fibromas were less than that of myomtetrium. Subserosal leiomyomas (12/28), seen on enhancement as isointense or hyperintense to myometrium, showed a greater degree of enhancement than ovarian fibromas (0/6). Ipsilateral ovary was rarely seen in ovarian fibromas (1/6), but commonly seen in sub-serosal leiomyomas (20/25). Ascites was present in one case of ovarian fibroma. CONCLUSION: A defined margin of an intratumoral hyperintense lesion, as seen on T2-weighted images, and the presence or absence of the "bridging vessel sign" and ipsilateral ovary are useful signs when differentiating be-tween ovarian fibromas and subserosal leiomyomas.
Animals
;
Ascites
;
Female
;
Fibroma*
;
Leiomyoma*
;
Magnetic Resonance Imaging*
;
Mice
;
Muscle, Skeletal
;
Myometrium
;
Ovary
8.The Change of Prostate Specific Antigen after Treatment in Chronic Prostatitis Associated with Elevated Serum Prostate Specific Antigen.
Joo Yeol CHEONG ; Sang Hyeon CHEON ; Ro Jung PARK ; Chang Soo OH ; Jung Hyun KIM
Korean Journal of Urology 2003;44(8):819-822
PURPOSE: Men with documented chronic prostatitis, with elevated serum prostate specific antigen (PSA), were investigated to assess whether treatment lowers serum PSA and thus avoids unnecessary biopsies. MATERIALS AND METHODS: The medical records of 46 men who presented with serum PSA higher than 4ng/ml, and subsequently diagnosed with chronic prostatitis, were retrospectively reviewed. After the administration of antibiotics and anti-inflammatory drugs for 4 to 8 weeks, the follow-up PSA levels were determined, and those with levels higher than 4ng/ml underwent a prostate biopsy. RESULTS: The mean PSA level decreased 61% from 11.66ng/ml before, to 3.79ng/ml after, treatment (p<0.001). In 30 patients the serum PSA level decreased to below 4ng/ml (mean 1.69), with these patients no longer having an indication for a prostate biopsy. In the remaining 16 patients the serum PSA level remained elevated above 4ng/ml, so they underwent a prostate biopsy. Pathological study revealed benign prostatic hyperplasia in 11 cases and prostate cancer in 5. The PSA level in patients associated with benign prostatic hyperplasia decreased 61.9% with treatment, from 19.96 to 7.88ng/ml (p=0.006) and the PSA in those associated with prostate cancer decreased 30.6% with treatment, from 12.85 to 7.32ng/ml (p<0.05). CONCLUSIONS: This study demonstrates that chronic prostatitis can cause elevation of serum PSA levels, and when identified, antibiotics and anti-inflammatory treatment can lower these levels and an unnecessary prostate biopsy can be avoided.
Anti-Bacterial Agents
;
Biopsy
;
Follow-Up Studies
;
Humans
;
Male
;
Medical Records
;
Prostate*
;
Prostate-Specific Antigen*
;
Prostatic Hyperplasia
;
Prostatic Neoplasms
;
Prostatitis*
;
Retrospective Studies
9.A Sanitary Survey on the Medicinal Water Springs Located near Taegu City (1986).
Sang Duk CHA ; Bong Ki CHANG ; Byung Yeol CHUN ; Doo Hie KIM
Korean Journal of Preventive Medicine 1986;19(2):273-280
'Medicinal water' have been used for the treatment of disease and the promotion of health. To study the quality and health effect of 'medicinal water', the eleven springs located near Taegu City during the period of March 27-February 17, 1986 were tested for biological and physiochemical examination and were checked for sanitary environment around the spring. Among them three springs (27.3%) had a good sanitary equipments and only one was negative for biological examination. Three 'medicinal water' were accepted as potable by physicochemical examination. According to above findings, all of the 'medicinal water' sampled from the springs located near Taegu City were not potable by this sanitary survey adopted Drinking Water Standard in Korea. Kachang and Youngchum 'medicinal water' were more contaminated by heavy metals and bacteria than those of other springs. To solve the problem of contamination by heavy metals that originated from uncertain sources, we should search for the sources of water contamination, remove it completely and also support the environmental equipments and management system in protection of safe 'medicinal water' supply.
Bacteria
;
Daegu*
;
Drinking Water
;
Health Promotion
;
Korea
;
Metals, Heavy
;
Water*
10.The Incidence of Cardiac Arrhythmias is Lower in Isoflurane than Enflurane.
Soo II LEE ; Chang Yeol LEE ; Seung Su KIM ; Na Kyung LEE ; Sang Bum KIM ; Chong Sung KIM
Korean Journal of Anesthesiology 1997;32(3):370-376
BACKGROUND: There is difference between isoflurane and enflurane in the myocardial sensitization to catecholamines, and their actions on the heart. Enflurane reduces cytoplasmic calcium more than isoflurane. The hypothesis could be suggested that these two volatile anesthetics might cause the different incidences and natures of cardiac arrhythmias. METHODS: The anesthesia was induced by the intravenous injection of thiopental(6 mg, kg-1) and pipecuronium(0.1 mg, kg-1). Two groups were randomly allocated to the patients(n=80) in the maintenance: Group I inhaled isoflurane(1~2%), O2(2 L), and N2O(2 L), Group II, enflurane (1.5~2.5%). Continuous electrocardiographic recordings with Holter monitor were made of those undergoing tympanoplasty during anesthesia. The tapes recorded were scanned using analyzer, and we read out ECG complexes on the screen. Results were categorized as induction, maintenance, and emergence, and inferred from unpaired t-test, and X2-test with p<0.05 considered significant. RESULTS: The results were as follows: 1) The total incidence of cardiac arrhythmias was 65.0%. Isoflurane(52.5%) was lower than enflurane(77.5%) in the incidence. 2) During maintenance and emergence, isoflurane was lower than enflurane in the frequency of supraventicular arrhythmias. 3) Ventricular arrhythmias most frequently occurred in induction. 4) The frequency of supraventricular arrhythmias was more than two times that of ventricular ones. The arrhythmias at the AV junction were the most common, and VPC's the second. CONCLUSIONS: Greatest caution should be paid during peri-induction. It could be suggested that compared to enflurane, isoflurane better be administered for those to whom arrhythmias could be harmful.
Anesthesia
;
Anesthetics
;
Arrhythmias, Cardiac*
;
Calcium
;
Catecholamines
;
Cytoplasm
;
Electrocardiography
;
Enflurane*
;
Heart
;
Incidence*
;
Injections, Intravenous
;
Isoflurane*
;
Tympanoplasty