1.A Case of Focal Choroidal Excavation Associated with Chronic Central Serous Chorioretinopathy.
Woo Jin KIM ; Nam Chun CHO ; Eui Yong KWEON
Journal of the Korean Ophthalmological Society 2015;56(4):627-631
PURPOSE: To report a case of focal choroidal excavation associated with central serous chorioretinopathy. CASE SUMMARY: A 48-year-old female presented with a 20-year history of visual disturbance. Focal choroidal excavation with neurosensory retinal detachment was detected in the right eye on optical coherence tomography. Fluorescein angiography showed hyperfluorescene in the area of excavation and multiple focal hyperfluorescences in the perimacular area. Vertically linear hyperfluorescene line was detected in the excavated area caused by retinal pigment epithelial atrophy. Based on the 2 diagnostic findings, we diagnosed a focal choroidal excavation with central serous chorioretinopathy. No progression was detected for 2 months.
Atrophy
;
Central Serous Chorioretinopathy*
;
Choroid*
;
Female
;
Fluorescein Angiography
;
Humans
;
Middle Aged
;
Retinal Detachment
;
Retinaldehyde
;
Tomography, Optical Coherence
2.The Results of a Combination of Cataract Surgery and Intravitreal Bevacizumab Injection for Diabetic Macular Edema.
Bu Ki KIM ; Eui Yong KWEON ; Dong Wook LEE ; Min AHN ; Nam Chun CHO
Journal of the Korean Ophthalmological Society 2010;51(7):954-960
PURPOSE: To evaluate the efficacy and safety of the combination of cataract surgery and intravitreal bevacizumab injection in patients with cataract and diabetic macular edema. METHODS: Patients received an intravitreal injection of bevacizumab(1.25 mg) combined with phacoemulsification and implantation of a posterior chamber intraocular lens. Best corrected visual acuity (BCVA, LogMAR) and, central macular thickness (CMT) were measured using OCT at baseline and at one week, one, three, and six months after surgery, and adverse events were recorded. RESULTS: The mean baseline LogMAR BCVA was 0.84+/-0.50 and mean CMT was 337.1+/-57.50 micrometer. At one week, one, three, and six months after surgery, the mean BCVAs were 0.52+/-0.40, 0.51+/-0.42, 0.52+/-0.34, and 0.46+/-0.37, and the mean CMTs were 356.4+/-86.44 micrometer, 338.8+/-138.4 micrometer, 349.0+/-122.9 micrometer, and 334.2+/-100.4 micrometer, respectively. No adverse events associated with cataract surgery or intravitreal bevacizumab injection were observed. CONCLUSIONS: The short-term results from the present study suggest the combination of cataract surgery and intravitreal bevacizumab injection are safe and effective for the prevention of macular edema aggravation for one month, but has little effect on prevention of macular edema aggravation three months after surgery for diabetic macular edema patients.
Antibodies, Monoclonal, Humanized
;
Cataract
;
Humans
;
Intravitreal Injections
;
Lenses, Intraocular
;
Macular Edema
;
Phacoemulsification
;
Visual Acuity
;
Bevacizumab
3.Phacoemulsification in Previously Vitrectomized Eyes; Results of a 5-Year Period in Surgical Outcome.
Woo Jin KIM ; Eui Yong KWEON ; Min AHN ; Nam Chun CHO
Journal of the Korean Ophthalmological Society 2009;50(7):1015-1021
PURPOSE: To compare the incidence of complications and the outcome of phacoemulsification surgery in patients with and without previous vitrectomy. METHODS: We retrospectively investigated 60 patients in a study group that received phacoemulsification with posterior chamber IOL implantation (PC-IOL) in the vitrectomized eye and 60 patients in a control group that received only phacoemulsification with PC-IOL implantation from January 2003 to December 2007. The interval from PPV to cataract extraction, sex, age, type of cataract, intraoperative and postoperative complications, pre- and postoperative refraction were reviewed. RESULTS: The most common indication of pars plana vitrectomy was diabetic retinopathy. Nucleosclerosis was the most common type of cataract. The most common intraoperative complication was posterior capsular rupture, but there was no statistical significance when compared with the control group (p=0.116). In addition, the most common postoperative complication was posterior capsular opacity. After phacoemulsification, the rate at which a BCVA of 0.5 or better was obtained was lower in the study group than the control group. The spread between actual and expected refraction showed no statistically significant difference when compared with the control group (p=0.309). CONCLUSIONS: Experienced surgeons can safely perform phacoemulsification and PC-IOL implantation in previously vitrectomized eyes. However, the outcome of visual acuity is limited by vitreoretinal pathology that requires vitrectomy.
Cataract
;
Cataract Extraction
;
Diabetic Retinopathy
;
Eye
;
Humans
;
Incidence
;
Intraoperative Complications
;
Phacoemulsification
;
Postoperative Complications
;
Retrospective Studies
;
Rupture
;
Visual Acuity
;
Vitrectomy
4.A Case of Juvenile Polyposis Syndrome with Whole Gastrointestinal Tract Involvement.
Key Hyeon KIM ; Yoon Tae JEEN ; Bora KEUM ; Seung Joo NAM ; Jin Yong PARK ; Jong Gyu SONG ; Cho Rong OH ; Woo Seok CHOI
Korean Journal of Gastrointestinal Endoscopy 2009;38(1):43-46
Juvenile Polyposis Syndrome is a rare condition that is characterized by the development of multiple polyps in the gastrointestinal tract. It is a hamartomatous disorder that was first described in families in 1964. Both sporadic and familial cases with autosomal dominant inheritance have been reported on. Juvenile Polyposis Syndrome is regarded as a distinct from the solitary juvenile polyps that develop in 2% of children and adolescents, and the latter have no malignant potential. We report here on a case of Juvenile Polyposis Syndrome in an 18 year old male along with a review of the relevant literature. The patient had various numbers of different sized pedunculated polyps that were observed throughout the entire gastrointestinal tract.
Adolescent
;
Child
;
Gastrointestinal Tract
;
Humans
;
Intestinal Polyposis
;
Male
;
Neoplastic Syndromes, Hereditary
;
Polyps
;
Wills
5.A Case of Endoscopic Temporary Stent Insertion to Treat a Pyloric Stenosis Caused by Endoscopic Submucosal Dissection for Early Gastric Cancer.
Won Woo LEE ; Jong Jae PARK ; Cho Rong OH ; Seung Joo NAM ; Key Hyeon KIM ; Jin Ki HWANG ; Jae Seon KIM ; Young Tae BAK
Korean Journal of Gastrointestinal Endoscopy 2008;37(6):429-432
Circumferential resection by performing endoscopic submucosal dissection (ESD) in the antrum can cause pyloric stenosis. Treatment with balloon dilation usually requires repeated sessions and this may cause bleeding or perforation. There are several studies regarding the treatment of benign pyloric stenosis by the temporary placement of self-expandable metallic stent (SEMS), but these studies did not include any case of pyloric stenosis caused by ESD for treating early gastric cancer (EGC). We experience a case of a man who had EGC encircling the antrum. After ESD, pyloric stenosis occurred and so a SEMS was applied. Eight weeks later, the stent was removed without complications. Stent insertion for benign pyloric stenosis has not been accepted as a standard therapeutic modality. However, continuous dilation of a stenotic lesion can be expected without major complications, except for migration. Therefore, temporary stent insertion can be considered as an alternative treatment option for benign pyloric stenosis. Further study on the long term outcome of this procedure is needed.
Hemorrhage
;
Pyloric Stenosis
;
Stents
;
Stomach Neoplasms
6.Postoperative Endophthalmitis Following Cataract Surgery Over an Eight-Year Period.
Woo Jin KIM ; Eui Yong KWEON ; Dong Wook LEE ; Nam Chun CHO
Journal of the Korean Ophthalmological Society 2008;49(11):1771-1778
PURPOSE: To estimate the annual incidence rate, evaluate any changes, analyze the microbiologic spectrum of infecting organisms, antibiotic susceptibility, and factors associated with visual outcomes of postoperative endophthalmitis following cataract surgery over an 8-year period. METHODS: A retrospective investigation of direction, sex, age, culture results, interval duration, and initial visual acuity of 29 patients with endophthalmitis following cataract surgery was conducted from January 2000 to December 2007. The study was divided into two 4-year periods, with patients categorized into either Group 1 or 2. RESULTS: The incidence rate was 0.359%, the major infective organism was Staphylococcus epidermidis, and no significant change was observed during the 8-year period. Vancomycin retained efficacy in all cases, but increased resistance occurred with ciprofloxacin during the 8 years. Increased visual acuity after treatment was greater in Group 2 and the interval from onset of ocular symptoms to ophthalmic consultation was shorter in Group 2, although a statistical significance was not demonstrated. CONCLUSIONS: Vancomycin remains effective for patients with endophthalmitis following cataract surgery. Patients who initially had good visual acuity showed greater improvement. However, sex, age, or whether or not the patients had a vitrectomy operation, were not statistically significant factors in the improvement of visual acuity.
Cataract
;
Ciprofloxacin
;
Endophthalmitis
;
Humans
;
Incidence
;
Retrospective Studies
;
Staphylococcus epidermidis
;
Vancomycin
;
Visual Acuity
;
Vitrectomy
7.Results of Intravitreal Bevacizumab for Macular Edema with Retinal Vein Occlusion and Diabetic Macular Edema.
Jong Youn KIM ; Eui Yong KWEON ; Dong Wook LEE ; Nam Chun CHO
Journal of the Korean Ophthalmological Society 2008;49(8):1275-1282
PURPOSE: To evaluate the short-term effect and safety of intravitreally injected bevacizumab in patients with macular edema (ME) caused by retinal vein occlusion (RVO) and diabetic macular edema (DME). METHODS: We retrospectively evaluated 59 eyes of 51 patients, 29 with ME caused by RVO and 30 with DME, who received intravitreal injection of bevacizumab. Fifty-one consecutive patients (59 eyes) with ME associated with RVO and DME were treated with intravitreal injections of 1.25-2.5 mg (0.05-0.1 ml) of bevacizumab. Ophthalmic evaluation was performed at baseline and at 1, 3, 6 months after each injection. Clinical evidence of toxicity and complications, changes of visual acuity with an ETDRS chart (LogMAR), and central macular thickness (CMT) using optical coherence tomography (OCT), were evaluated. RESULTS: The follow-up period was 7.3 months (7.3+/-0.31) and the mean number of injections was 1.2. The baseline mean LogMAR was 1.06+/-0.53 and mean CMT was 479.6+/-160.4 micrometer. At 1, 3 and 6 months, the mean LogMAR was 0.90+/-0.52, 0.80+/-0.39 and 0.78+/-0.39, respectively, and the mean CMT was 316.9+/-86.7 micrometer, 281.1+/-67.4 micrometer and 278.4+/-64.6 micrometer, respectively. No adverse incidents were observed, including cataract, retinal detachment, vitreous hemorrhage, and endophthalmitis, although transient increased intraocular pressure was observed. CONCLUSIONS: Intravitreal bevacizumab injections are safe and effective in ME caused by RVO and DME.
Antibodies, Monoclonal, Humanized
;
Cataract
;
Endophthalmitis
;
Eye
;
Follow-Up Studies
;
Humans
;
Intraocular Pressure
;
Intravitreal Injections
;
Macular Edema
;
Retinal Detachment
;
Retinal Vein
;
Retinal Vein Occlusion
;
Retinaldehyde
;
Retrospective Studies
;
Tomography, Optical Coherence
;
Visual Acuity
;
Vitreous Hemorrhage
;
Bevacizumab
8.Thoracolumbar Epidural Hematoma Complicated by Cauda Equina Syndrome : Complication of Systemic Heparinization Following Epidural Anesthesia: A case report.
Hyung Ku YOON ; Ho Seung JEON ; Key Nam CHO ; Jae Ho CHOI
The Journal of the Korean Orthopaedic Association 1998;33(4):1120-1125
Spinal epidural hematoma is a rare complication of epidural anesthesia and most commonly associated with intraoperative or postoperative anticoagulant administration. We describe the case of an acute thoracolumbar epidural hematoma at the T12-L4 level complicated by cauda equina syndrome, which occurred after placement of spinal epidural catheter for anesthesia and anticoagulant therapy for acute myocardial infarction developed postoperatively. In our experience, the spinal epidural catheterization and anticoagulant therapy may potentially increase the risk of epidural hematoma formation.
Anesthesia
;
Anesthesia, Epidural*
;
Catheterization
;
Catheters
;
Cauda Equina*
;
Hematoma*
;
Hematoma, Epidural, Spinal
;
Heparin*
;
Myocardial Infarction
;
Polyradiculopathy*
9.Treatment of Humeral Shaft Fractures with Seidel Nail.
Hyung Ku YOON ; Ho Seung JEON ; Key Nam CHO ; Ji Ung YANG
The Journal of the Korean Orthopaedic Association 1998;33(3):674-680
Seidel nail provides more advantages for treatment of humeral shaft fracture than other treatment modalities. It enables patients to get high bone union rate, makes surgical technigne less invasive, and allows early mobilization mobilization so that the patients is subjected to more comfortable treatment. But, Seidel nail is apt to injure the rotator cuff and has relatively weak holding power of distal fragment of fracture so that it may result in distraction and rotatory instability, and make nonunion and impaired shoulder function. Thus, in order to the functional and radiological results, complications and technical problems, we evaluated the efficacy of Seidel nail in treatment of 20 cases of hurneral shaft fractures from March l994 to March 1996, retrospectively. The results were as follows. 1. 18 cases(90%) achieved radiological union. 2. The time of union was 12.5 weeks in average. 3. 17 cases achieved satisfactory results according to Neers functional score. 4. The complications included proximal protrusion of nail from the entry site(10%), fracture of greater tuberosity of proximal humerus(5%), loosening of distal spreading screw(10%), and nonunion( l 0%). In conclusion, Seidel nailing is one of good treatment modalities for humeral shaft fracture, but skillful operative technique is needed to obtain the satisfactory functional result. And also, it is necessory to modify the distal locking system of Seidel nail to reinforce the rotational stahility of the fracture site.
Early Ambulation
;
Humans
;
Humerus
;
Retrospective Studies
;
Rotator Cuff
;
Shoulder
10.Treatment of the Open Tibial Pilon Fractures - Using Limited Internal Fixation and External Fixation.
Hyung Ku YOON ; Ho Seung JEON ; Key Nam CHO ; Seung Il KANG
The Journal of the Korean Orthopaedic Association 1998;33(5):1419-1426
Open tibial pilon fractures present extensive soft tissue disruption and common complications such as sepsis or skin slough, and deserve special cosideration in addition to the challenging reconstructive problems. The purpose of this study is to assess the effectiveness of limited internal fixation and external fixation for the treatment of the open tibial pilon fractures, and to introduce some idea in Ilizarov device use. We reviewed 27 open tibial pilon fractures treated with limited internal fixation and external fixation from Feb. 1992 to Mar. 1996(follow-up range, 1 to 5 years). Fracture classification(Ruedi and Allgower) was type I in 5, type II in 10 and type III in 12, open wound type(Gustilo-Anderson) was II in 8, IIIA in 17 and IIIB in two. Secondary procedures were 16 soft tissue procedures, 13 bone graftings and 2 limb lengthening. Mean time for removal of the external fixators was 3.5 months(range, 6 to 21 weeks), and clinical union averaged 4.3 months(range, 12 to 25 weeks). At the time of last follow-up, radiologic grading(Burwell and Charnley) showed 13 good(48%), 10 fair(37%) and 4 poor results(15%). Objective functional grading(Ovadia and Beals) showed 5 excellent(19%), 15 good(56%), 6 fair(22%) and 1 poor(4%), and subjective grading 2 excellent(7%), 16 good(59%), 7 fair(26%) and 2 poor(7%). Common complications included 10 wound sepsis(37%), 6 posttraumatic arthritis(22%) and 5 malunions(19%). In conclusion, we cosider limited internal fixation and external fixation is an effective treatment modality till bone union for open tibial pilon fractures, and Ilizarov method using tension wires crossed only through the fracture fragments can provide a sufficient early and late stability.
External Fixators
;
Extremities
;
Follow-Up Studies
;
Ilizarov Technique
;
Sepsis
;
Skin
;
Tibia
;
Transplants
;
Wounds and Injuries

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