1.Overcorrection, Undercorrection and Astigmatic Change after Excimer Laser Photorefractive Keratectomy of Myopia.
Dong Suk SUH ; Yeon Woo JEUNG ; Young Ho HAHN
Journal of the Korean Ophthalmological Society 1998;39(7):1380-1391
We have studied the overcorrection, undercorrection, astigmatic change and its incidence on time sequence after the excimer laser photorefractive keratectomy, and its relation with the degree of preoperative myopia, sex, and age. The study has been done with 429 eyes which we could assess for 6 months or more after excimer laser photorefractive keratectomy of myopia from July 1993 to march 1997. Overcorrection of more than -1D was common during the early postoperative periods and then gradually decreased with time. Overcorrection has been seen in 261 eyes(60.84%) after 1 month, but only 33 eyes(13.47%) after 1 year, and 13 eyes(11.02%) after 2 years. Undercorrection has been seen in 2 eyes(0.47%) after 1 month, but 25 eyes(10.20%) after 1 year, and 20 eyes(16.95%) after 2 years. Surgically induced astigmatism increased to 0.54+/-0.84D after 10 days and then decreased 0.19+/-0.75D after 12 months. Also, surgical induced astigmatism developed 1.13+/-1.10D in 247 eyes (57.58%) after 1 month, but decreased 0.89+/-0.45D in 107 eyes(43.67%) after 12 months. The occurrence of overcorrection and undercorrection was related to the severity of preoperative myopia(p<0.05), but with sex and age, it had no statistical correlation(p>0.05). The amount of postoperative astigmatism was related to preoperative astigmatism(p<0.05), but it had no statistical correlation with the degree of preoperative myopia, age, sex, and development and increase of surgically induced astigmatism(p>0.05).
Astigmatism
;
Incidence
;
Lasers, Excimer*
;
Myopia*
;
Photorefractive Keratectomy*
;
Postoperative Period
2.One Case of Ectopic Pancreatic Tissue with Gastroschisis.
Hyun Sook YOON ; Min Suk HYUN ; Jhoeng Hee HAHN ; So Won AHN ; Jung Woo YANG
Journal of the Korean Pediatric Society 1983;26(10):1009-1012
No abstract available.
Gastroschisis*
3.A Clinical Analsys on 39 Cases of Omphalocele and Gastroschisis.
Min Suk HYUN ; Mee Yeon PARK ; Jheong Hee HAHN ; So Won AHN ; Jung Woo YANG
Journal of the Korean Pediatric Society 1983;26(9):857-865
No abstract available.
Gastroschisis*
;
Hernia, Umbilical*
4.Clinical Analysis on Ischemic Myosits associated with Carbon Monoxide Poisoning
Keun Woo KIM ; Eun Yong LEE ; Se Il SUK ; Moon Sik HAHN
The Journal of the Korean Orthopaedic Association 1971;6(4):335-342
A clinical review and analysis was carried out on 14 cases of ischemic myositis associated with carbon monoxide poisioning treated at S.N.U.H. during the 3 year period from 1968 to 1971 with following results. l. Among 14 patients, there were 8 males and 6 females. 8 cases were between the 20–30 years of age. None was observed under 20 years old. 2. Average duration of exposure to carbon monoxide gas was 9 hours, mostly between 8–12 hours. 3. Such systemic conditions are suggested as predisposing causes leading to ischemic myositis as pregnancy, postpartum, active pulmonary tuberculosis, obesity with hypertension, and hypnotic addiction. 4. In regard to the local factors, prolonged external pressure the body is subjected to in unconcious state as well as local burn is shown to be responsible for the myositis. And in this respect Korean mode of bed on On-Dol may deserve blame for myositis because of its hardness and much heat. 5. Complications associated with ischemic myositis were 3 cases of ischemic myocarditis, 2 cases of brain syndrome and 3 cases of acute renal failure. In 3 cases of renal failure, all terminated fatally inspite of the intensive care including hemodialysis. 6. Fasciotomy should be performed cautiously, as 4 cases of secandary infection were complicated after fasciotomy on 5 cases.
Acute Kidney Injury
;
Brain
;
Burns
;
Carbon Monoxide Poisoning
;
Carbon Monoxide
;
Carbon
;
Critical Care
;
Female
;
Hardness
;
Hot Temperature
;
Humans
;
Hypertension
;
Male
;
Myocarditis
;
Myositis
;
Obesity
;
Postpartum Period
;
Pregnancy
;
Renal Dialysis
;
Renal Insufficiency
;
Tuberculosis, Pulmonary
5.Morphologic Evaluation of Cat Corneal Endothelium Preserved in Korean Corneal Storage Medium.
Suk Woo YANG ; Soo Ja OH ; Ki San KIM ; Jae Chan KIM ; Ki Bong LEE ; Tae Won HAHN
Journal of the Korean Ophthalmological Society 2000;41(12):2652-2662
No Abstract Available.
Animals
;
Cats*
;
Endothelium, Corneal*
6.Decreased Expression of Surfactant Protein Genes Is Associated with an Increased Expression of Forkhead Box M1 Gene in the Fetal Lung Tissues of Premature Rabbits.
Won Ho HAHN ; Ji Young CHANG ; Kyung Suk LEE ; Chong Woo BAE
Yonsei Medical Journal 2013;54(6):1422-1429
PURPOSE: Recently, Forkhead box M1 (FoxM1) was reported to be correlated with lung maturation and expression of surfactant proteins (SPs) in mice models. However, no study has been conducted in rabbit lungs despite their high homology with human lungs. Thus, we attempted to investigate serial changes in the expressions of FoxM1 and SP-A/B throughout lung maturation in rabbit fetuses. MATERIALS AND METHODS: Pregnant New Zealand White rabbits were grouped according to gestational age from 5 days before to 2 days after the day of expected full term delivery (F5, F4, F3, F2, F1, F0, P1, and P2). A total of 64 fetuses were enrolled after Cesarean sections. The expressions of mRNA and proteins of FoxM1 and SP-A/B in fetal lung tissue were tested by quantitative reverse-transcriptase real-time PCR and Western blot. Furthermore, their correlations were analyzed. RESULTS: The mRNA expression of SP-A/B showed an increasing tendency positively correlated with gestational age, while the expression of FoxM1 mRNA and protein decreased from F5 to F0. A significant negative correlation was found between the expression levels of FoxM1 and SP-A/B (SP-A: R=-0.517, p=0.001; SP-B: R=-0.615, p<0.001). CONCLUSION: Preterm rabbits demonstrated high expression of FoxM1 mRNA and protein in the lungs compared to full term rabbits. Also, the expression of SP-A/B was inversely related with serial changes in FoxM1 expression. This is the first report to suggest an association between FoxM1 and expression of SP-A/B and lung maturation in preterm rabbits.
Animals
;
Blotting, Western
;
Female
;
Fetus/*metabolism
;
Forkhead Transcription Factors/*metabolism
;
Lung/*metabolism
;
Pregnancy
;
Pulmonary Surfactant-Associated Protein A/genetics/*metabolism
;
Rabbits
7.Quadricepsplasty for the Stiff Knee.
Soo Bong HAHN ; Woo Suk LEE ; Woong HAN ; Dae Yong HAN
The Journal of the Korean Orthopaedic Association 1999;34(3):529-534
PURPOSE: To report the technique of modified Thompson quadricepsplasty with postoperative treatment using string tie and the results for stiff knees. MATERIALS AND METHODS: From June 1987 to June 1997, we evaluated the results of 20 knees of 19 patients who were managed with modified Thompson quadricepsplasty for the stiff knee and were followed up for an average of 29 months (range, 18 to 49 months). We performed modified Thompson quadricepsplasty, which included arthrolysis, anterolateral or lateral approach, transverse incision on tensor fascia lata, release of middle and distal third of quadriceps muslce. If the knee flexion was less than 130 degree, Z-plasty on distal tendinous portion of rectus femoris was performed. Postoperatively, the knees were flexed with string tie for 3 hours. And then the knees were extended for 3 hours. This periodic passive exercise was started by the 21st day after the surgery. RESULTS: The average gain in flexion from preoperative to postoperative was 74.7 degree+/-25.1 degree. At the latest follow-up, the average loss of range of motion from that obtained in the operating room was 5.3 degree+/-7.2 degree. According to Judet's assessment of results, there were 17 excellent and 3 good results. There was one wound infection but it resolved after wound care and intravenous antibiotics for 3 weeks. CONCLUSIONS: The modified Thompson quadricepsplasty and postoperative care with string tie provided good results for the stiff knee.
Anti-Bacterial Agents
;
Fascia Lata
;
Follow-Up Studies
;
Humans
;
Knee*
;
Operating Rooms
;
Postoperative Care
;
Quadriceps Muscle
;
Range of Motion, Articular
;
Wound Infection
;
Wounds and Injuries
8.A case of colon carcinoma in crohn's disease.
Dong Woo SHIN ; Byung Chul HAHN ; Jae Uk SHIN ; Jeong Hyeon CHUN ; Yeon Suk HAHN ; Jae Hyeon LIM ; Young Bo SHIM ; Sang Yeol SUH ; Mi Kyung SHIN
Korean Journal of Medicine 2000;59(1):80-84
Crohn's disease is one of the chronic inflammatory disorders of unknown cause involving the gastrointestinal tract. The inflammation may occur in the colon, either alone or with small intestine. Crohn's disease has been associated with increased risk for coloretal carcinoma in patients with long-standing colitis, strictures and fistulae. Recently, we experienced a case of Crohn's disease complicating carcinoma in a 85 year old male. Ten years ago, he compained severe abdominal pain and diarrhea. and was detected colon obstruction and enteric fistula. But, he spontaneously improved. Recently, the patient was admitted complaining abdominal pain. He complaind abdominal pain and indigestion chronically and aggravated recently. He was examined with colonofibroscopy, and computered tomography, and carcinoma was detected at the site of Crohn's disease.
Abdominal Pain
;
Aged, 80 and over
;
Colitis
;
Colon*
;
Colorectal Neoplasms
;
Constriction, Pathologic
;
Crohn Disease*
;
Diarrhea
;
Dyspepsia
;
Fistula
;
Gastrointestinal Tract
;
Humans
;
Inflammation
;
Intestine, Small
;
Male
9.Development of New Residency Training Programs for Psychiatry in Korea.
Kyungjin AN ; Seung Hwan LEE ; Eun Jin PARK ; Inki SOHN ; Jae Hon LEE ; Jung Suk LEE ; Sang Woo HAHN
Journal of Korean Neuropsychiatric Association 2013;52(4):187-196
As the government has a plan to terminate medical internships and to start the New Resident program, postgraduate medical students should encounter the new residency training program without the internship from 2015. To keep pace with this significant change, the Korean Neuropsychiatry association launched the task force team to manage this problem. The task force team has examined the psychiatry residency training programs from major countries, including England, Japan, Germany, Australia, New Zealand, and the Unites States. In addition, we conducted a survey for teaching psychiatrists and psychiatry residents who just finished the Psychiatry Board Examination in 2013 using a premade questionnaire on the expected problems that might occur if the internship program were abolished, and some significant issues regarding resident rotation schedule to other departments. In this paper, we summarized the results of our examination and survey. Establishment of a new residency training program based on these surveys would be desirable.
Advisory Committees
;
Appointments and Schedules
;
Australia
;
England
;
Germany
;
Humans
;
Internship and Residency
;
Japan
;
Korea
;
Neuropsychiatry
;
New Zealand
;
Psychiatry
;
Surveys and Questionnaires
;
Students, Medical
10.B radykinin Receptor-Meadiated Intracellular Calcium Mobilization and ATP Changes in Cultured Bovine Corneal Endothelial Cell.
Suk Woo YANG ; Seok Ho CHA ; Keon Haeng LEE ; Tae Won HAHN
Journal of the Korean Ophthalmological Society 2000;41(4):815-824
To clarify the effect of bradykinin(Bk)on cultured bovine corneal endothelial cells(BCEC), cytosolic free calcium([Ca2+])mobilization and cell proliferation were investigated. The [Ca2+] was determined using a Ca2+ sensitive indicator, Fura-2/AM, and cell proliferation was evaluated by counting the cell number. Bk induced the transient increase of [Ca2+] in a concentration-dependent manner(10(-11)M~10(-7)M)and its 50% effective concentration was about 5x10(-11)M. The basal [Ca2+] with 1mM CaCl2 in the bathing solution was 87+/-9nM. Transient Bk(10(-8)M)-induced [Ca2+] increase was inhibited slightly but significantly by the pretreatment with EGTA. The pretreatment with U-73122(5x10(-6)M), an inhibitor of phospholipase C, also attenuated Bkinduced [Ca2+] mobilization. To identify and characterize the Bk receptor subtype in BCEC, Bk1 and Bk2 antagonists were investigated. Transient Bk(10(-8)M)-induced [Ca2+] increase was almost absolutely attenuated by the pretreatment with Bk2 antagonist for 10 minutes. To investigate the physiological effect of Bk, Bk-induced mitogenic effect was studied. 10(-8)M of Bk produced significant increase of intracellular ATP levels from the day 2 to the day six of culture period. This Bk-induced mitogenic effect was inhibited by the treatment with Bk2 antagonist. Bk-induced ion transport was determined by measuring intracellular ATP contents. Intracellular ATP content([ATP]i)was decreased by the treatment with 10(-8)M Bk for 10 minutes. Bk-induced [ATP]i decrement was significantly restored by the pretreatment with ouabain for 30 minutes. In summary, stimulation of intracellular signal transduction by Bk in BCEC is coupled with Bk2 type receptor. And also, Bk produces mitogenic effect and enhancesion and fluid transport in BCEC.
Adenosine Triphosphate*
;
Baths
;
Bradykinin
;
Calcium*
;
Cell Count
;
Cell Proliferation
;
Cytosol
;
Egtazic Acid
;
Endothelial Cells*
;
Ion Transport
;
Ouabain
;
Signal Transduction
;
Type C Phospholipases