1.A case of immature teratoma of uterus.
Tae Hwan YOO ; Yoon LEE ; Jeong Gon PARK ; Yong Bong KIM ; Eung Soo LEE ; Sung Kwan PARK
Korean Journal of Obstetrics and Gynecology 1993;36(7):3132-3135
2.A Case of Hydroxychloroquine Retinopathy.
Jung Jin LEE ; Seung Kook BAEK ; Tae Gon LEE ; Su Jin YOO
Journal of the Korean Ophthalmological Society 2012;53(9):1357-1363
PURPOSE: Hydroxychloroquine has been used as the antimalarial agent and drug of the treatment for autoimmune disease such as rheumatoid arthritis. Hydroxychloroquine retinopathy can cause serious visual disturbance although the incidence is low. This report is to describe a case of Hydroxycholoroquine retinopathy on 73 year old female. CASE SUMMARY: A 73 year old female patient presented our clinic with complaints of visual disturbance for several months. She had taking 400 mg/day (8.8 mg/kg of lean body weight/day) of hydroxychloroquine for 2 years. The best corrected visual acuity was 20/30 in both eyes. Bull's eye maculopathy was observed on her fundus examination and Humphrey Automated Visual Field 24-2 showed central scotoma in both eyes. Parafoveal thinning of photoreceptor layers, loss of the inner and outer segment junction and external limiting membrane was observed on spectral domain Optical Coherence Tomography. Window defect was visible at the parafoveal area on fluorescein angiography. Electroretinogram revealed subtle dysfunction of cone cell and multifocal ERG trace array showed decreased amplitudes at the parafoveal area. Electrooculogram showed decreased Arden ratio. CONCLUSIONS: We strongly advise that all patients taking Hydorxycholoroquine therapy have a regular examination to find hydroxychloroquine retinopathy in early stage especially in the patients having high risk factors.
Arthritis, Rheumatoid
;
Autoimmune Diseases
;
Electrooculography
;
Eye
;
Female
;
Fluorescein Angiography
;
Humans
;
Hydroxychloroquine
;
Incidence
;
Membranes
;
Risk Factors
;
Scotoma
;
Tomography, Optical Coherence
;
Visual Acuity
;
Visual Fields
3.Prenatal ultrasonic detection of endocardial cushion defect in 1 case.
Jeong Gon PARK ; Tae Hwan YOO ; Yoon LEE ; Myung Kwon JEON ; Hong Kyun LEE ; Hong Dong KIM ; Hye Je CHO ; Shin Young LEE
Korean Journal of Obstetrics and Gynecology 1993;36(7):3126-3131
No abstract available.
Endocardial Cushion Defects*
;
Endocardial Cushions*
;
Ultrasonics*
4.Comparison of Bioabsorbable and Metallic Interference Screws in Arthroscopic Anterior Cruciate Ligament Reconstruction Using Bone-Patellar Tendon-Bone Autograft.
Hee Gon PARK ; Moon Jib YOO ; Myung ho KIM ; Kyung Tae CHUNG ; You Jin KIM
Journal of the Korean Knee Society 2003;15(2):118-124
PURPOSE: To compare the postoperative results between the patient group which used bioabsorbable interference screw and metallic interference screw during ACL reconstruction surgery. MATERIAL AND METHODS: Out of 105 patients for whom the postoperative follow-up was possible for one year, authors took 80 patients who underwent arthroscopic ACL recostruction with bone-patellar tendon-bone autograft between December of 1996 and December of 2000. 60 patients fell into group 1 where the patients received bioabsorbable interference screw for fixation at femur and tibia, and 20 patients were classified as group 2 where the patients received metallic interference screw on both the femur and tibia. KT 2000 arthrometer was performed and Lysholm knee score was taken before and after the operation, and the patients underwent the same examination at 6 weeks. 3 months, 6 months, and 1 year after the operation, and the results were compared. RESULT: The average Lysholm knee score of group 1 was 59, and 57 for group 2. During the final follow up examination, the average score improved to 90 for group 1, and group 2. Compared to the healthy side, KT 2000 arthrometer showed the average in group 1 was 6.9 mm and 7.2 mm in group 2 preoperatively, at the final follow up visit after the operation, the value improved to 3.0 mm for both group 1 and 2. Unlike group 2, there were statistically significant relaxation symptoms in group 1 when the exams were performed up until 6 weeks after the operation(P<0.05). CONCLUSION: The usage of bioabsorbable interference screw has many advantages. However, unlike metallic interference screw, it shows laxity within 3 months after the operation. Therefore, when using bioabsorbable interference screw, one has to consider the patients'activity, occupation, or life-style.
5.Obesity Is an Adverse Factor on Laparoscopic Radical Nephrectomy for T2 but Not T1 Renal Cell Carcinoma.
Se Yun KWON ; Jae Jun BAE ; Jung Gon LEE ; Seock Hwan CHOI ; Bum Soo KIM ; Eun Sang YOO ; Tae Gyun KWON ; Tae Hwan KIM
Korean Journal of Urology 2011;52(8):538-542
PURPOSE: Laparoscopic radical nephrectomy (LRN) is more challenging with increases in body mass index (BMI). Several recent studies have shown, however, that LRN can be safely performed even in obese patients. The influence of obesity on the perioperative outcomes of LRN has not been well elucidated for large renal tumors (>7 cm), however. We estimated the impact of obesity on LRN for stage T1 and T2 renal cell carcinoma (RCC). MATERIALS AND METHODS: From January 2004 to March 2011, 266 patients underwent LRN (T1: 195, T2: 71). These patients were subdivided into the following two groups according to BMI: the nonobese group (BMI less than 25 kg/m2) and the obese group (BMI greater than 25 kg/m2). Perioperative outcomes were retrospectively compared between these two groups in T1 and T2 RCC patients. RESULTS: There were no significant differences in perioperative outcomes between the obese and nonobese groups of T1 RCC patients. However, in T2 RCC patients, operative time and complication rate were significantly increased in the obese group. CONCLUSIONS: Our results suggest that LRN can be safely performed in Korean patients with T1 RCC regardless of obesity. In T2 RCC patients, however, LRN may become more difficult with increasing BMI considering a longer operation time as well as a higher complication rate. We suggest that LRN for obese patients with T2 RCC be carefully considered.
Body Mass Index
;
Carcinoma, Renal Cell
;
Humans
;
Nephrectomy
;
Obesity
;
Operative Time
;
Retrospective Studies
6.Natural Short-term Course of Recurrent Macular Edema Following Intravitreal Bevacizumab Therapy in Branch Retinal Vein Occlusion.
Su Jin YOO ; Jae Hui KIM ; Tae Gon LEE ; Jong Woo KIM ; Sung Won CHO ; Jung Il HAN
Korean Journal of Ophthalmology 2017;31(2):95-101
PURPOSE: To evaluate the 3-month natural course of recurrent macular edema secondary to branch retinal vein occlusion (BRVO) treated with intravitreal bevacizumab. METHODS: This retrospective, observational study included 36 eyes with macular edema secondary to BRVO. All patients were initially treated with intravitreal bevacizumab for macular edema. Recurrence of macular edema was either not treated (untreated group) or treated with a single intravitreal bevacizumab injection (treated group). Central foveal thickness (CFT) and best-corrected visual acuity (BCVA) were compared at the time of recurrence and 3 months later. RESULTS: At the time of recurrence, the mean CFT and logarithm of the minimum angle of resolution BCVA were 484.9 ± 124.1 µm and 0.58 ± 0.26 in the untreated group (n = 19) and 456.3 ± 126.8 µm and 0.51 ± 0.21 in the treated group (n = 17), respectively. Three months later, the mean CFT and BCVA had changed to 493.7 ± 123.9 µm and 0.62 ± 0.29 in the untreated group and 294.7 ± 104.4 µm and 0.40 ± 0.24 in the treated group, respectively. The differences in CFT and BCVA between the two time points were not significant in the untreated group (p = 0.106 and p = 0.687, respectively), whereas statistically significant differences were noted in the treated group (p = 0.002 and p < 0.001, respectively). CONCLUSIONS: Unlike the first episode of macular edema following BRVO, recurrent macular edema following intravitreal bevacizumab therapy did not spontaneously resolve, suggesting the potential benefit of prompt treatment.
Bevacizumab*
;
Curriculum*
;
Humans
;
Macular Edema*
;
Natural History
;
Observational Study
;
Recurrence
;
Retinal Vein Occlusion*
;
Retinal Vein*
;
Retinaldehyde*
;
Retrospective Studies
;
Visual Acuity
7.Effect of Previous Abdominal or Pelvic Surgery on Colonoscopy.
Chang Wook JEONG ; Sang Goon SHIM ; Geon Tae PARK ; Ji Eun OH ; Ji Eun YI ; Jae Gon WOO ; Dae Hyeon CHO ; Gil Jong YOO
Korean Journal of Gastrointestinal Endoscopy 2011;42(5):283-288
BACKGROUND/AIMS: A number of studies have reported wide variability in the colonoscope insertion time among patients who had prior abdominal surgery. The aim of this study was to investigate the effect of abdominal surgery on colonoscope insertion time. METHODS: The subjects were 192 patients with prior abdominal surgery, among 3,600 patients who underwent a colonoscopy at Samsung Changwon Hospital from May 2008 to May 2010. We collected the following data: insertion time, age, gender, height, weight, BMI, waist circumference, method of abdominal surgery, and the degree of bowel cleanliness. Previous abdominal operations were divided into colectomy, non-colectomy abdominal surgery, pelvic surgery, and laparoscopic surgery groups. RESULTS: The average colonoscope insertion time in patients with prior abdominal surgery (7.73+/-5.95 min) was longer than that of the non-surgery group (6.4+/-3.88 min). Patients in the colectomy groups were older and had a shorter insertion time (5.11+/-3.32 min) than patients in the other groups. CONCLUSIONS: Insertion of a colonoscope in patients with previous abdominal surgery was more difficult than that in the control group, except the colectomy group.
Colectomy
;
Colonoscopes
;
Colonoscopy
;
Humans
;
Laparoscopy
;
Waist Circumference
8.Anesthetic Requirements in Chronic Cord-injured Patients Undergoing Surgery below the Level of Injury.
Nam Gi PARK ; Kyung Yeon YOO ; Cheol won JEONG ; Sung Tae CHUNG ; Seok Jai KIM ; Woong Mo KIM ; Hyung gon LEE
Korean Journal of Anesthesiology 2008;54(3):S6-S15
BACKGROUND: We determined the effect of spinal cord injury (SCI) on sevoflurane requirements and stress hormone responses, and sevoflurane concentration to block autonomic hyperreflexia (AHR) in SCI patients. METHODS: In the first series, sevoflurane concentrations to maintain bispectral index score (BIS) at 40-50 and stress hormone response were examined in 27 SCI patients undergoing surgery below the level of injury.Fifteen patients without SCI served as control.Measurements included end-tidal sevoflurane concentrations (ET(SEVO)), systolic blood pressure (SBP), heart rate (HR), catecholamines, vasopressin, and cortisol concentrations.In the second series, sevoflurane concentration to block AHR was examined in 31 SCI patients undergoing transurethral litholapaxy.When a patient developed an episode of AHR, the target sevoflurane concentration was maintained for 10 min, and then the procedure was repeated.Each target concentration was determined by up-down method based on SBP. RESULTS: During surgery, SBP, HR, and BIS were comparable between SCI and control.However, ETSEVO was significantly smaller in the SCI than the control.Plasma concentrations of norepinephrine, epinephrine and cortisol were significantly lower in the SCI than the control.SBP rose by 67 +/- 31 mmHg, whereas HR fell by 13 +/- 8 bpm during the 1st trial in the SCI (P < 0.01).Hypertensive events were associated with increases of norepinephrine concentrations.ETSEVO required to prevent AHR were 3.12% in 50% of patients, 3.83% in 95% of patients. CONCLUSIONS: SCI reduces the anesthetic requirement by 39%, and decreases stress hormone responses during surgery below the level of injury.To prevent AHR in 95% of SCI patients undergoing litholapaxy, ETSEVO 3.83% may be required.
Autonomic Dysreflexia
;
Blood Pressure
;
Catecholamines
;
Epinephrine
;
Heart Rate
;
Humans
;
Hydrocortisone
;
Lithotripsy
;
Methyl Ethers
;
Mustard Compounds
;
Norepinephrine
;
Spinal Cord Injuries
;
Vasopressins
9.The Role of CT/Discography in Assessing Postoperative Disc Herniation.
Hyoung Keun LEE ; Byung Chan JEON ; Sung Woo SEO ; Tae Young KIM ; Choong Sun YOO ; Jae Gon MOON ; Yong Soon HWANG ; Han Kyu KIM ; Hwa Dong LEE
Journal of Korean Neurosurgical Society 1997;26(11):1537-1543
Successful management of patients with persistent or recurring pain after lumbar disc surgery requires comprehensive evaluation to accurately localize the anatomic sources of pain. The results of reoperation for recurrent disc herniation are uniformly good, whereas those of reoperation for scar tissue are poor. There have been few studies comparing the ability of enhanced MRI and CT/discography to distinguish between scar tissue and recurrent disc herniation. We evaluated 23 patients with recurring pain after lumbar disc surgery. Two neurosurgeons independently reviewed CT/discography and MRI of each patient before and after gadolinium enhancement. To determine the accuracy, sensitivity, and specificity of each test, responses were compared with surgical findings and CT/discography was found to be more sensitive and specific in distinguishing between scar and recurrent disc herniation. Characteristics associated with recurrent disc herniation include nonenhanced or rim-enhanced abnormality surrounding a low signal on enhanced MRI. and extension of contrast into the epidural space on CT/discography. For determining the need to repeat open disc surgery, combined MRI and CT/discography is more accurate and sensitive than either test alone.
Cicatrix
;
Epidural Space
;
Gadolinium
;
Humans
;
Magnetic Resonance Imaging
;
Reoperation
;
Sensitivity and Specificity
10.Hypertension Caused by Renal Arteriovenous Fistula.
Hye Sung AN ; Tae Gon KANG ; Hyun Jin YUN ; Myo Jing KIM ; Jin A JUNG ; Jae Ho YOO ; Young Seok LEE
Korean Circulation Journal 2009;39(12):548-550
We describe a case of secondary hypertension caused by renal arteriovenous fistula. An 8-year old girl was hospitalized with a severe headache, vomiting, and seizure. Renal angiography demonstrated multiple renal arteriovenous fistula and increased blood renin concentration in the left renal vein. Thus, left renal arteriovenous fistula and renin induced secondary hypertension were diagnosed. Her blood pressure was well controlled by medication with angiotensin converting enzyme inhibitor.
Angiography
;
Arteriovenous Fistula
;
Blood Pressure
;
Headache
;
Hypertension
;
Peptidyl-Dipeptidase A
;
Renal Veins
;
Renin
;
Seizures
;
Vomiting