1.Radial motor nerve conduction study using surface electrode in normal adults.
Sae Yoon KANG ; Young Jin KO ; Eun Seok CHOI ; Chan Seok OH
Journal of the Korean Academy of Rehabilitation Medicine 1992;16(4):385-389
No abstract available.
Adult*
;
Electrodes*
;
Humans
;
Neural Conduction*
2.Prognostic evaluation of regional lymph node morphology in uterine cervical cancer.
Dong Hee CHOI ; Byung Seok LEE ; Tchan Kyu PARK ; Chan Il PARK
Korean Journal of Obstetrics and Gynecology 1991;34(11):1583-1591
No abstract available.
Lymph Nodes*
;
Uterine Cervical Neoplasms*
3.The relationship between changes in serum insulin-like growth factor profiles and changes in bone mineral density in postmenopausal women receiving hormone replacement therapy.
Seok Hyun KIM ; Young Min CHOI ; Chang Suk SUH ; Jung Gu KIM ; Chan Soo SHIN
Korean Journal of Obstetrics and Gynecology 2000;43(1):26-31
PURPOSES: To evaluate the effect of hormone replacement therapy(HRT) on serum insulin-like growth factors(IGFs) levels and to investigate if changes in serum IGFs reflect changes in BMD after HRT in postmenopausal women. MATERIAL & METHODS: IGF-I and IGF-II were measured by radioimmunoassay after Bio-spin P-10 seperation in sera obtained every 3 months from postmenopausal women who was taking premarin alone (premarin group; n=17) or premarin-medroxyprogesterone acetate(MPA group; n=42) for 1 year. Also, bone mineral density(BMD) were determined before and 1 year after HRT by dual energy X-ray absorptiometry(DEXA). All statistics were performed by Paired t-test, student's t-test, repeated measures ANOVA test, Pearson's coefficient. RESULTS: HRT increased BMD of the lumbar spine and proximal femur in both premarin group and MPA group, but any difference in degreee of increase in BMD was not noted between premarin group and MPA group. Compared with pretreatment levels, serum IGF-I levels decreased at 3, 6 and 12 months after therapy only in latter group whereas serum IGF-II levels increased at 6 and 12 months after HRT in both groups. Changes in serum IGF-I and IGF-II levels during therapy did not show any difference by the bone response to HRT. Changes in serum IGF-II levels after HRT did not correlated with the 1 year changes in BMD at any skeletal sites studied, but changes in serum IGF-I levels from pretreatment to 6 months after HRT was negatively correlated with change in BMD of Ward's triangle. CONCLUSION: HRT influences serum IGF levels in postmenopausal women and changes in serum IGF-I levels may predict the changes in BMD of Ward's triangle after HRT.
Bone Density*
;
Estrogens, Conjugated (USP)
;
Female
;
Femur
;
Hormone Replacement Therapy*
;
Humans
;
Insulin-Like Growth Factor I
;
Insulin-Like Growth Factor II
;
Postmenopause
;
Radioimmunoassay
;
Spine
4.The effects of different exercises on regional bone density in young adult female athletes.
Chan Hee SONG ; Kyung Soo KIM ; Whan Seok CHOI ; Sun Myeong OCK
Journal of the Korean Academy of Family Medicine 1998;19(8):642-651
BACKGROUND: Previous studies have suggested that regular exercise may increase bone mineral density. However, the effects on bone mineral density are different depending on the types of exercises and recent studies on the effects of different exercises on bone mineral density are insufficient. This study was conducted to assess the effects of 2 different exercises(Judo, Taekwondo) and physical fitness(back muscle strength, grip strength, broad jump, vertical jump, flexibility, sit ups) on regional BMD. METHODS: Subjects were healthy adults female volunteers aged 19 to 22 years and consisted of eight Judo athletes, twelve Taekwondo athletes, and eight nonathletic controls. We measured their bone mineral density of lumbar spine, femoral neck, femoral greater trochanter, Wards triangle, femoral shaft and distal radius using dual energy X ray absorptiometry and assessed their physical fitness. We investigated the mean differences of regional bone mineral density between the groups and the relationships between physical fitness and regional bone mineral density. RESULTS: ANCOVA revealed that there were significant differences in the regional bone mineral density between the groups. The Judo athletes group had significantly higher bone density of greater trochanter, femoral shaft, distal radius, femoral neck and lumbar spine than the control group and had significantly higher bone density of greater trochanter, femoral shaft and distal radius.than the Taekwondo atheletes group. There were no significant differences of bone density in all the regions between the Taekwondo atheletes and the control groups. Partial correlation coefficients between the back muscle strength and the bone density of Wards triangle, greater trochanter, distal radius, femoral neck, femoral shaft, and lumbar were 0.581, 0.570, 0.526, 0.502, 0.424, and 0.418, Respectively (P<0.05). Correlation coefficients between the broad jump and the bone density of femoral neck, greater trochanter, and femoral shaft were 0.577, 0.539, and 0.457, respectively(P<0.05). Correlations of the grip strength, flexibility, sit ups and vertical jump with bone density of all regions were not high(r< or=0.5). CONCLUSIONS: Different types of exercises showed different effects of bone density. The back muscle strength among the physical fitness factors was considered to be the most important predictor of bone density. In the future, further studies are necessary for the effects of other exercises on bone density.
Absorptiometry, Photon
;
Adult
;
Athletes*
;
Back Muscles
;
Bone Density*
;
Exercise*
;
Female*
;
Femur
;
Femur Neck
;
Hand Strength
;
Humans
;
Martial Arts
;
Muscle Strength
;
Physical Fitness
;
Pliability
;
Radius
;
Spine
;
Volunteers
;
Young Adult*
5.Role of Redistribution and 24 Hour Reinjection Images to assess Myocardial Viability in Patients with Acute Myocardial Infarction.
Seok Nam YOON ; Moon Sun PAI ; Chan H PARK ; Myung Ho YOON ; Byung Il CHOI
Korean Journal of Nuclear Medicine 1998;32(4):325-331
PURPOSE: We evaluated the importance of redistribution and 24 hour reinjection images in Tl-201 SPECT assessment of myocardial viability after acute myocardial infarction (AMI). MATERIALS AND METHODS: We performed dipyridamole stress-4 hour redistribution-24 hour reinjection Tl-201 SPECT in 43 patients with recent AMI (4-16 days). The myocardium was divided into 16 segments and perfusion grade was measured visually with 4 point score from 0 to 3 (absent uptake to normal uptake). A perfusion defect with stress score 2 was considered moderate. A defect was considered severe if the stress score was 0 or l (absent uptake or severe perfusion decrease). Moderate defect on stress image were considered viable and segments with severe defect were considered viable if they showed improvement of 1 score or more on redistribution or reinjection images. We compared the results of viability assess-ment in stress-redistribution and stress-reinjection images. RESULTS: On visual analysis, 344 of 688 segments (50%) had abnormal perfusion. Fifty two (15%) had moderate perfusion defects and 292 (85%) had severe perfusion defects on stress image. Of 292 severe stress defects, 53 were irreversible on redistribution and reversible on reinjection images, and 15 were reversible on redistribution and irreversible on reinjection images. Two hundred twenty four of 292 segments (76.7%) showed concordant results on stress-redistribution and stress-reinjection images. Therefore 24 hour reinjection image changed viability status from necrotic to viable in 53 segments of 292 severe stress defect (18%). However, myocardial viability was underestimated in only 5% (15/292) of severe defects by 24 hour reinjection. CONCLUSION: The 24 hour reinjection imaging is useful in the assessment of rnyocardial viability. It is more sensitive than 4 hour redistribution imaging. However, both redistribution and reinjection images are needed since they complement each other.
Complement System Proteins
;
Dipyridamole
;
Humans
;
Myocardial Infarction*
;
Myocardium
;
Perfusion
;
Tomography, Emission-Computed, Single-Photon
6.Cardiac dose reduction with breathing adapted radiotherapy using self respiration monitoring system for left-sided breast cancer.
Kihoon SUNG ; Kyu Chan LEE ; Seung Heon LEE ; So Hyun AHN ; Seok Ho LEE ; Jinho CHOI
Radiation Oncology Journal 2014;32(2):84-94
PURPOSE: To quantify the cardiac dose reduction during breathing adapted radiotherapy using Real-time Position Management (RPM) system in the treatment of left-sided breast cancer. MATERIALS AND METHODS: Twenty-two patients with left-sided breast cancer underwent CT scans during breathing maneuvers including free breathing (FB), deep inspiration breath-hold (DIBH), and end inspiration breath-hold (EIBH). The RPM system was used to monitor respiratory motion, and the in-house self respiration monitoring (SRM) system was used for visual feedback. For each scan, treatment plans were generated and dosimetric parameters from DIBH and EIBH plans were compared to those of FB plans. RESULTS: All patients completed CT scans with different breathing maneuvers. When compared with FB plans, DIBH plans demonstrated significant reductions in irradiated heart volume and the heart V25, with the relative reduction of 71% and 70%, respectively (p < 0.001). EIBH plans also resulted in significantly smaller irradiated heart volume and lower heart V25 than FB plans, with the relative reduction of 39% and 37%, respectively (p = 0.002). Despite of significant expansion of lung volume using inspiration breath-hold, there were no significant differences in left lung V25 among the three plans. CONCLUSION: In comparison with FB, both DIBH and EIBH plans demonstrated a significant reduction of radiation dose to the heart. In the training course, SRM system was useful and effective in terms of positional reproducibility and patient compliance.
Breast Neoplasms*
;
Cardiac Volume
;
Feedback, Sensory
;
Heart
;
Humans
;
Lung
;
Patient Compliance
;
Radiotherapy*
;
Respiration*
;
Tomography, X-Ray Computed
7.Paradoxical Responses to Oxybutynin Treatment in Localized Hyperhidrosis: Case Report
Min Sung KIM ; In Ho BAE ; Hoon CHOI ; Chan Ho NA ; Bong Seok SHIN
Korean Journal of Dermatology 2019;57(9):558-559
No abstract available.
Hyperhidrosis
8.Kasai Operation for Extrahepatic Biliary Atresia - Survival and Prognostic Factors.
Chan Seok YOON ; Seok Joo HAN ; Young Nyun PARK ; Ki Sup CHUNG ; Jung tak OH ; Seung Hoon CHOI
Journal of the Korean Association of Pediatric Surgeons 2006;12(2):202-212
The prognostic factors for extrahepatic biliary atresia (EHBA) after Kasai portoenterostomy include the patient's age at portoenterostomy (age), size of bile duct in theporta hepatis (size), clearance of jaundice after operation (clearance) and the surgeon's experience. The aim of this study is to examine the most significant prognostic factor of EHBA after Kasai portoenterostomy. This retrospective study was done in 51 cases of EHBA that received Kasai portoenterostomy by one pediatric surgeon. For the statistical analysis, Kaplan-Meier method, Logrank test and Cox regression test were used. A p value of less than 0.05 was considered to be significant. Fifteen patients were regarded as dead in this study, including nine cases of liver transplantation. There was no significant difference of survival to age. The age is also not a significant risk factor for survival in this study (Cox Regression test; p = 0.63). There was no significant difference in survival in relation to the size of bile duct. However, bile duct size was a significant risk factor for survival (Cox Regression test; p = 0.002). There was a significant difference in relation to survival and clearance (Kaplan-Meier method; p = 0.02). The clearing was also a significant risk factor for survival (Cox Regression test; p = 0.001). The clearance of jaundice is the most significant prognostic factor of EHBA after Kasai portoenterostomy.
Bile Ducts
;
Biliary Atresia*
;
Humans
;
Jaundice
;
Kaplan-Meier Estimate
;
Liver Transplantation
;
Prognosis
;
Retrospective Studies
;
Risk Factors
9.Tuberculous Spondylitis Complicated with Descending Aortic Pseudoaneurysm: Report of 1 Case.
Dong Gyu LEE ; Woo Dong NAM ; Ki Chan AHN ; Seung Seok SEO ; Young Chang KIM ; Jang Seok CHOI
Journal of Korean Society of Spine Surgery 1998;5(2):342-347
Tuberculous spondylitis is not rare disease. Today the posterior instrumentation and posterior or posterolateral fusion concomitant with the anterior decompression and anterior interbody fusion have been used for the treatment of spinal tuberculosis. The authors experienced a case of tuberculous spondylitis complicated with descending aortic pseudoaneurysm. An aneurysm is defined as a localized dilatation of an artery that is at least one-half the size greater than is expected for that artery. Pseudoaneurysm occurring after previous operation, trauma, and infection. Erosion of the thoracic aorta with the development of an fistula in the presence of infection is an unusual and difficult problem to manage. We report a case and review related articles briefly.
Aneurysm
;
Aneurysm, False*
;
Aorta, Thoracic
;
Arteries
;
Decompression
;
Dilatation
;
Fistula
;
Rare Diseases
;
Spondylitis*
;
Tuberculosis, Spinal
10.Arthroscopic Assisted Management of Displaced Intraartieular Calcaneal Fractures.
Hoon KIM ; Seung Seok SEO ; Woo Dong NAM ; Ki Chan AHN ; Young Chang KIM ; Jang Seok CHOI
The Journal of the Korean Orthopaedic Association 1998;33(7):1782-1789
Although the management of fractures of the calcaneus still remains controversial, open reduction and internal fixation is gaining in popularity as the method of choice for the treatment of displaced intraarticular calcaneal fractures. However, open methods can make several complications such as neurovascular injury and infection. Thus we have performed the new technique of arthroscopic reduction and minimal internal fixation for displaced intraarticular calcaneal fractures in 5 cases. The results were evaluated between 12 and 16 months after surgery. A Bohler angle was restored to 25degrees-40degrees in all cases. Anatomical reduction of articular surface were obtained from 4 cases out of 5. No complications were found except 1 peroneal tendinitis. The clinical results by Creighton-Nebraska health foundation assessment for fractures of the calcaneus were 3 excellent, 1 good and 1 fair. Even though this was a few case and a short term follow-up study, the arthroscopic assisted management of displaced intraarticular calcaneal fracture induced a little complications and satisfactory results.
Calcaneus
;
Follow-Up Studies
;
Tendinopathy