1.Clinical study on spinal muscular atrophies.
Soo Ahn CHAE ; Yong Seung HWANG
Journal of the Korean Pediatric Society 1992;35(12):1728-1736
No abstract available.
Muscular Atrophy*
2.Spirometry, a useful method for detecting upper airway tumor.
Hojoong KIM ; Jhingook KIM ; Kyung Soo LEE ; Yong Chan AHN
Korean Journal of Medicine 2002;62(1):114-115
No abstract available.
Spirometry*
3.Meaurement of the Muscle Fatigue Patterns using Electromyography Technique.
Jae Yong AHN ; Jung Soo HAN ; Ki Sik MIN
The Journal of the Korean Orthopaedic Association 1998;33(4):1184-1192
Injuries and pains of musculoskeletal joint in human body is common onset in industrialized world. However, muscle fatigue plays a very significant role in contributing causes of many pains associated with musculoskeletal joints. Based on this hypothesis, degree of muscle fatigue was investigated using electromyography measurement technique during isometric and concentric/eccentric muscle contractions. Different response of the muscle fatigue between two different muscle contractions (isometric and concentric/eccentric contractions) was examined by comparison of parameters which were median frequency, median power and RMS value. Healthy 16 young persons without previous musculoskeletal diesease history were tested with Noraxon Myosystem 2000 EMG measurement system. In this study, two different exercises were performed. First exercise was concentric/eccentric exercise. Second exercise was isometric muscle contraction. In the case of the isometric exercise, median frequency was decreased, but median power and RMS were increased. However, during the concentric/eccentric exercse, median frequency was increased, but median power and RMS were decreased. Both of those revealed that the pattern of the median frequency was W type, but median power and RMS were M type as time passed. In this study, the patterns of the muscle fatigue during concentric/eccentric exercise as well as isometric exercise were identified. It will be helpful to prevent musculoskeletal injury from over-working andexercising.
Electromyography*
;
Exercise
;
Human Body
;
Humans
;
Joints
;
Muscle Contraction
;
Muscle Fatigue*
4.Regeneration of Full
Dae Kyung BAE ; Jae Yong AHN ; Young Soo KIM
The Journal of the Korean Orthopaedic Association 1988;23(2):619-628
There are many controversies in ability of articular cartilage to heal full thickness defect. Generally, it is reported that full thickness defects of articular cartilage filled with organizing hematoma and granulation tissues, which converted to chondroid tissues. It is clear that the size of defect was related to the repair of articular cartilage. Though cartilagenous material fills the defect and restores the surface continuity, it may undergo degeneration, and lead to localized focus of osteoarthritis. Multiple drilling through subchondral bone could be a kind of treatment in articular cartilage defect. Author conducted an experiment for the full thickness defect of articular cartilage in rabbit. After multiple drilling of articular cartilage, the repair of defect was examined histologically until eighth week. Results were as followings ; l. At lst. week, the defect was repaired by fibrovascular proliferation and granulation tissue. 2. At 3rd. week, hyaline cartilage consisted of normal chondrocyte was formed. 3. At 8th. week, subchondral plste was regenerated completely. 4. All defects that were less than 3 mm. in diameter were healed. More repairs were observed in case with the wider defects if the defects were within 3mm. in diameter. 5. The metachromasia was observed with toluidine blue stain. The reformed cartilage shows slight purple(Grade II) to moderate purple(Grade III) at third week and near normal (Grade IV) at fourth week. In conclusion, multiple drilling may be an effective method of treatment in articular cartilage defect. It is considered that multiple drilling with a 3mm. Steinmann pin may be the most convenient and effective method of the cartilage healing.
Cartilage
;
Cartilage, Articular
;
Chondrocytes
;
Granulation Tissue
;
Hematoma
;
Hyaline Cartilage
;
Methods
;
Osteoarthritis
;
Regeneration
;
Tolonium Chloride
5.The effect of Large for Gestational Age on Asymmetrical Ventricular Septal Hypertrophy in the Newborn.
Yong Soo KIM ; Soo Ahn CHAE ; In Seok LIM ; Byoung Hoon YOO
Journal of the Korean Society of Neonatology 1998;5(1):40-44
PURPOSE: It has been known for a long time that infants of insulin dependent diabetic mothers are prone to develop macrosornia, organomegaly, hyperbilirubinemia, respiratory distress syndrome, hypoglycemia, hypocalcemia, septicemia and congenital anomalies in the neonatal period. And echocardiographic asymmetrical- ventricular septal hyper- trophy(ASH) has been observed in the newborn infants of diabetic mothers. The etiology of the ASH remains unknown, although fetal hyperglycemia and subsequent glycogen deposits have been postulated as contributing factors. Therefore, we have studied whether large for gestational age(LGA) has played an important role of developing ASH. METHODS: We compared echocardiographic findings in neonates of LGA and appro- priate for gestational age(AGA), who were admitted to the Department of Pediatrics, Chung Ang University Hospital from April 1994 to March 1997. RESULTS: 1) Mean LVED in LGA and AGA were 1.96+0.06cm and 1.94+0.04cm, respectively. 2) Mean LVPW in LGA and AGA were 0.37+0.05cm and 0.370.05cm, respectively. 3) Mean IVS in LGA and AGA were 0.400.09cm and 0.380.09cm, respectively. 4) Mean IVS/ LVPW in LGA and AGA were 1.09+0.12 and 1.040.17, respectively. There was no statistical significance between two groups in echocardiographic findings. CONCLUSION: There is no relation between LGA and ASH in the neonate. According- ly, we may not need to perform echocardiography LGA routinely.
Echocardiography
;
Gestational Age*
;
Glycogen
;
Humans
;
Hyperbilirubinemia
;
Hyperglycemia
;
Hypertrophy*
;
Hypocalcemia
;
Hypoglycemia
;
Infant
;
Infant, Newborn*
;
Insulin
;
Mothers
;
Pediatrics
;
Sepsis
6.Ganglion in extensor tendon of the hand: case report
Duke Whan CHUNG ; Jung Soo HAN ; Yong Girl LEE ; Ok Kyun AHN ; Soo Hong HAN
The Journal of the Korean Orthopaedic Association 1995;30(1):170-172
Ganglion is a common clinical entity, usually superficial in location, therefore easily diagnosed and most common tumors of the hand which represent 50 to 70% of all soft tissue tumors of the hand. The soft mucin filled cyst is attached to the adjacent underlying joint capsule, tendon, or tendon sheath. The most common ganglion is the ganglion on the dorsal side of wrist, with its origin at the scapulolunate ligament and is usually located between the extensor digitorum communis of the index finger and the extensor pollicis longus tendons. Intratendinous ganglion is very rare lesion that originates within the tendon, which has been reported 10 cases in earliest articles and 1 case in Korean article. We report one case of ganglion that arose within the extensor digitorum communis of the middle finger.
Fingers
;
Ganglion Cysts
;
Hand
;
Joint Capsule
;
Ligaments
;
Mucins
;
Tendons
;
Wrist
7.A Case of Cutaneous Angiomyolipoma.
Yong Suk LEE ; Sang Eun MOON ; Phil Soo AHN ; Kwang Hyun CHO ; Kye Yong SONG
Annals of Dermatology 1996;8(4):247-249
We describe a case of cutaneous angiomyolipoma found in the ear lobe, that is not associated with tuberous sclerosis. The lesion developed on the youngest patient yet reported in the literature.
Angiomyolipoma*
;
Ear
;
Humans
;
Tuberous Sclerosis
8.A Study of Milk beta-Glucuronidase Activity in Breast Milk Associating with Neonatal Jaundice.
Soo Chun KIM ; Chong Woo BAE ; Yong Mook CHOI ; Chang Il AHN
Journal of the Korean Pediatric Society 1989;32(9):1202-1209
No abstract available.
Breast*
;
Glucuronidase*
;
Infant, Newborn
;
Jaundice, Neonatal*
;
Milk*
;
Milk, Human*
9.Hidroacanthoma Simplex Clinically Mimicking Squamous Cell Carcinoma.
Jungsoo LEE ; Na Young YOON ; Seok Yong AHN ; Won Soo LEE
Korean Journal of Dermatology 2014;52(4):274-275
No abstract available.
Carcinoma, Squamous Cell*
10.Role of Lumbar Puncture in Children with First Febrile Convulsion.
Kyu Chul CHOI ; Byoung Soo CHO ; Sa Jun CHUNG ; Yong Mook CHOI ; Chang Il AHN
Journal of the Korean Pediatric Society 1984;27(7):718-724
No abstract available.
Child*
;
Humans
;
Seizures, Febrile*
;
Spinal Puncture*