1.Surgical Treatment for Vitreous Hemorrhage Associated with Branch Retinal Vein Occlusion.
Duk Kee HAHN ; Young Hoon PARK
Yeungnam University Journal of Medicine 1992;9(2):211-217
No abstract available.
Retinal Vein Occlusion*
;
Retinal Vein*
;
Retinaldehyde*
;
Vitreous Hemorrhage*
2.Spontaneous involution of subfoveal neovascularization.
Young Hoon PARK ; Duk Kee HAHN
Yeungnam University Journal of Medicine 1991;8(1):252-258
Majority of the eyes with subfoveal neovascular membrane loss the central vision. We observed two patients who regained significant central vision as the result of the involution of subfoveal neovascularization. On follow-up fundus examination, the subretinal lesions revealed grayish neovascular membranes stained with fluorescein, but did not show the fluid leakage. And subretinal hemorrhage and subretinal fluid were gradually resolved. We assumed that functioning retinal pigment epithelium within the macula and young age were the important factors of the spontaneous improvement of visual outcome.
Fluorescein
;
Follow-Up Studies
;
Hemorrhage
;
Humans
;
Membranes
;
Retinal Pigment Epithelium
;
Subretinal Fluid
3.The Effect of the Local Anesthetic Cream in Alleviating Pain form Vaccination.
Sang Duk KIM ; Son Moon SHIN ; Yong Hoon PARK
Yeungnam University Journal of Medicine 1994;11(2):270-276
To evaluate the effect of a new topical anesthetic cream (EMLA : Eutectic mixture of local anesthetics) on reducing pain associated with DPT vaccination, we conducted a clinical observation on eighty infants who were brought to well baby clinic of Yeungnam University Hospital for DPT vaccination. 80 Infants, who were between 2 months and 8 months in age, were divided into two groups. EMLA treated group and control group. Male to femle sex ratio was 1.4 to 1. EMLA cream was applied 60 minutes before DPT vaccination, the effect of reducing pain was assessed by using McGrath's face scale, Oucher pain scale and modified behavioral pain scale (MBPS) and also evaluated by measuring the duration and time of crying (the time of the first crying after iniection, duration of the first crying, total duration of crying). The scores of those scales were lower in EMLA treated group than in control group significantly (P<0.01 in McGrath's face scale. MBPS and p<0.05 in Oucher pain scale). There was no difference in the time of the first crying after vaccination in both groups. The duration of the first crying was shorter in EMLA treated group than control group of crying was also shorter in EMLA treated group (EMLA treated group 9.0±12.5 sec, p<0.05). Transient skin erythema was noted in 5 infants after EMLA application, but no other adverse effects were observed. We conclude that the application of EMLA cream before vaccination seems to be an effective and safe way to reduce the pain from vaccination, but it takes usually 60 minutes to get the anesthetic effect of EMLA and it is expensive, so EMLA cream can not be recommended in routine vaccination in infants now.
Anesthetics
;
Crying
;
Erythema
;
Humans
;
Infant
;
Male
;
Sex Ratio
;
Skin
;
Vaccination*
;
Weights and Measures
4.Acute Phase Retinal Phototoxicity Induced by Blue Fluorescent Light.
Young Hoon PARK ; Soon Cheol CHA ; Duk Kee HAHN
Yeungnam University Journal of Medicine 1995;12(1):75-83
Even though phototherapy is an effective means of treating hyperbilirubinemia, adequate binocular shields are essential to prevent light hazard of retina during phototherapy. The phototherapy to young albino rabbits was performed under various conditions; exposured for 12, 24, and 48 hours, continuity or intermittence of irradiation, and use of shields. Although there was no definite pathologic change in indirect ophthalmoscopic examination, severe damage was seen at electron microscopic level. In all experimental groups, swelling and edema of photoreceptor were seen. at right after phototherapy. Futhermore, more severe damage was seen in case of intermittent irradiated group and prolong exposed group. In mydriatic eyes, severity of damage was similiar to non mydi iatic eyes, but area of retinal damage was more extensive than non-mydriatic eves.. In control group which was protected by binocular shields during phototherapy, no significant abnormality was found.
Dermatitis, Phototoxic*
;
Edema
;
Hyperbilirubinemia
;
Phototherapy
;
Rabbits
;
Retina
;
Retinaldehyde*
;
Telescopes
5.Experimental proliferative vitreoretinopathy.
Young Hoon PARK ; Bong Hwan LEE ; Duk Kee HAHN
Yeungnam University Journal of Medicine 1991;8(1):178-190
The authors performed experimental study to produce proliferative vitreoretinopathy by intravitreal injection of homologous fibroblasts in pigmented rabbits. Twenty four eyes of 12 rabbits were divided into control and experimental groups. In experimental group, the eyes were pretreated with expanding gas, perfluoropropane for the vitrectomy. In control group, no such procedure was preceded. In both groups, 5.0×10⁴, 1.0×10⁵ and 1.5×10⁵ cells of homologous fibroblasts were injected into the vitreous cavity. All the eyes were observed regularly with indirect ophthalmoscope followed by fundus photography. Those eyes were enucleated in 1, 2, 4 weeks for the light and electron microscopic studies. The development and severity of the proliferative vitreoretinopathy were correlated with the numbers of the injected fibroblast. This was more pronounced in the experimental group.
Fibroblasts
;
Intravitreal Injections
;
Ophthalmoscopes
;
Photography
;
Rabbits
;
Vitrectomy
;
Vitreoretinopathy, Proliferative*
6.Clinical observation of the bilateral branch vein occlusion.
Young Hoon PARK ; Duk Kee HAHN ; Sang Beon LEE
Yeungnam University Journal of Medicine 1993;10(1):77-81
The clinical evaluation was done in eight eyes of four patients with bilateral branch retinal vein occlusion. The onset of age was from 36 to 65 years, and three pa dents were women. Hypertension was the most common associated systemic disease. Retinal neovascularization was complicated in six eyes, and five eyes had vitreous hemorrhage. The vitrectomy was performed in three eyes. We believe that branch retinal vein occlusion associated with hypertension should be followed carefully in the fellow eyes.
Female
;
Humans
;
Hypertension
;
Retinal Neovascularization
;
Retinal Vein Occlusion
;
Veins*
;
Vitrectomy
;
Vitreous Hemorrhage
7.A Case of Secondary Glaucoma combined with Mesodermal Dysgenesis of Anterior Segment.
Tae Kwang AHN ; Young Hoon PARK ; Duk Kee HAHN
Yeungnam University Journal of Medicine 1990;7(1):187-190
The authors experienced a case of secondary glaucoma combined with mesodermal dysgenesis of anterior segment, which disclosed extensive peripheral iridocorneal adhesion of congenital origin while his fellow eye revealed a sclerocornea. This case is extremely rare and entirely different from the previously reported Axenfeld's and Rieger's anomalies. We report this interesting case with brief review of the literatures.
Glaucoma*
;
Mesoderm*
8.Intraocular Pressure Changes in the Uneventful Extra-capsular Cataract Extraction and Extra-capsular Cataract Extraction with Vitreous Loss followed by Anterior Chamber Lens Implantation.
Young Hoon PARK ; Kyoo Won LEE ; Duk Kee HAHN
Yeungnam University Journal of Medicine 1989;6(1):81-86
These days the posterior chamber lens implantation following the extracapsular cataract extraction has become the standard procedure except those patients who cannot take it in one reason or another. In past, however, the anterior chamber lens implantation was popular for sometimes. Even now in those patient complicated by vitreous loss, the anterior chamber lens implantation following anterior vitrectomy is indicated in some cases. We have become interested in the difference of the intraocular pressure change in the patients who underwent the uneventful extra-capsular cataract extraction followed by anterior chamber lens implantation in routine manner and in those whose extra-capsular cataract extraction were complicated by vitreous loss and eventually needed the anterior vitrectomy before the anterior chamber lens implantation. We reviewed the medical records of 15 cases of the former group and 11 cases of the latter one in 1986 through 1988. There was some difference in the postoperative pressure in the two groups, but it was not statistically significant.
Anterior Chamber*
;
Cataract Extraction*
;
Cataract*
;
Humans
;
Intraocular Pressure*
;
Medical Records
;
Vitrectomy
9.Primary Subacute Pyogenic Osteomyelitis of Long Bones
Hong Tae KIM ; Young Soo BYUN ; Bong Hoon PARK ; Jun Girl PARK ; Duk Ha JEON
The Journal of the Korean Orthopaedic Association 1985;20(4):639-647
Primary subacute pyogenic osteomyelitis is defined as a bone infection of insidious onset lasting for more than several weeks without any acute systemic toxic reactions and is known to have the problem of diagnosis because there is no inflammatory symptoms or signs and X-ray findings are similar to various bone tumors. Authors reviewed 29 cases of primary subacute pyogenic osteomyelitis of long bones admitted at Fatima hospital during the years between 1976 and 1984. The osteomyelitis of infants and the osteomyelitis modified by antibiotics were excluded. The diagnosis of the cases was confirmed by bacteriological examination and/or tissue examination. The results were as follows. 1. The cases were 18 males and 11 females and 19 adults and 10 children. Male predominence was noted in children. 2. The involved bones were 11 tibias, 10 femurs and all other long bones. The involved sites were 18 metaphysis and 11 shafts. 3. All of the cases has insidious onset of local pain without any acute systemic symptoms and most of the cases has local tenderness but local deep swelling noted in about half of the cases. 4. There were many cases with elevated ESR and a few cases of slight leukocytosis. 5. The confirmed infecting organism was all staphylococcus in 16 cases of the cultures from the 25 lesions. 6. The X-ray findings were Brodies abscess in 10, illdefined cavity in 3, diffuse bones absorption in 5, diaphyseal lesion of adult with localized cortical sclerosis in 5 and with localized medullary abscess in 3 and diaphyseal lesion of children with localized medullary abscess and periosteal reaction in 3 cases. 7. All of the cases cured rapidly with rare recurrence after treatment by simple local excision in 4 and curettage in 22 cases combined with antibiotic therapy and local immobilization.
Abscess
;
Absorption
;
Adult
;
Anti-Bacterial Agents
;
Child
;
Curettage
;
Diagnosis
;
Female
;
Femur
;
Humans
;
Immobilization
;
Infant
;
Leukocytosis
;
Male
;
Osteomyelitis
;
Recurrence
;
Sclerosis
;
Staphylococcus
;
Tibia
10.Ultrastructural and immunohistochemical studies of ameloblastoma.
Sung Duk CHO ; Choong Hyun CHANG ; Doo Hyung LEE ; Jae Hoon PARK ; Moon Ho YANG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1993;20(3):477-491
No abstract available.
Ameloblastoma*