1.Prevalence and risk factors of cerebral white matter changes and silent infarcts on brain computed tomography scans among community-dwelling healthy adults: The PRESENT project
Hyunyoung Park ; Jaehoon Jo ; JinSung Cheong ; Hyuk Chang ; Hak-Seung Lee ; SangHak Lee ; Seung-Han Suk
Neurology Asia 2014;19(4):351-356
Cerebral white matter changes (WMCs) and silent brain infarcts (SBIs) are common radiologic
findings in neurologically asymptomatic elderly people, but are associated with an increased risk
of subsequent stroke. We investigated the prevalence and risk factors for these cerebral changes on
brain computed tomography (CT) in 480 community-dwelling healthy Korean adults without stroke
or dementia, who were recruited for an early health program. Cerebral WMCs were defined as the
presence of approximately 5 mm wide ill-defined and moderately hypodense lesions, and SBIs were
defined as the presence of >2 mm wide well-defined hypodense lesions. Of the 480 patients, 49 (10.2%)
had cerebral WMCs and SBIs findings on brain CT. The prevalence of WMCs and SBIs increased
with age: the prevalence was 2.4%, 9%, and 32% for subjects in their 50, 60s, and 70s, respectively.
In addition, hypertension, abdominal obesity, increased levels of homocysteine and high sensitivity
C-reactive protein were significantly associated with cerebral WMCs and SBIs. Our study suggests
that regular monitoring of risk factors is required to prevent cerebral WMCs and SBIs and decrease
the incidence of stroke and dementia in healthy individuals.
2.Speckled Lentiginous Nevus.
Choong Seop HAHN ; Jung Bock LEE ; Seung Hun LEE ; Yoon Kee PARK ; Chang Jo KOH
Korean Journal of Dermatology 1981;19(3):353-358
Speckled lentiginous nevus is a clinical variant of nevus-cell nevus first described by Stewart et al. in 1978. It is characterized by small, dark hyperpigmentated speckles superimposed on a tannish-brown background. The speckled areas show varying histologic patterns ranging from nevus incipiens to junctional or compound nevus. The back ground shows histologic features of Ientigo simplex. Recently, we observed clinical and histological features of 5 cases of speckled lentiginous nevi. The age of onset ranges from birth to infancy, The locations are face, thigh, back and scapula. One has zosteriform distribution in upper extrernity, chest and back. Histologic features of speckles are junctional or compound nevus. We suggest that the origin of dark speckles may be from the tannish-brown background, lentigo simplex.
Age of Onset
;
Lentigo
;
Nevus*
;
Parturition
;
Scapula
;
Thigh
;
Thorax
3.The Effect of Stellate Ganglion Block on the Pain of Acute Stage and the Prevention of Postherpetic Neuralgin in the Treatment of Senile Herpes Zoster patients.
Il Hwan LEE ; Byung Su KIM ; Seung Chul LEE ; Dae Hyun JO
Korean Journal of Dermatology 1999;37(5):571-579
BACKGROUND: Stellate ganglion block, which is one of the effective therapeutic tools for treating herpes zoster has been advocated by many investigators. However its efficacy is controversial at present. OBJECTIVE: This study was conducted to examine the role of stellate ganglion block in the prevention of postherpetic neuralgia and relationships between the time of this treatment and the outbreak of postherpetic neuralgia. METHODS: Twenty patients over the age of fifty with herpes zoster were included in this study. Before treatment, we randomly divided patients into two groups, A and B. Group A was treated with stellate ganglion block and acyclovir and group B was treated with acyclovir alone. Also we subdivided each group by starting treatment time into group 1 and 2. Group 1 was defined as the patients who began treatment within 2 weeks of the onset of the skin lesion. We observed the severity of pain and the incidence of postherpetic neuralgia according to each group.
Acyclovir
;
Herpes Zoster*
;
Humans
;
Incidence
;
Neuralgia, Postherpetic
;
Research Personnel
;
Skin
;
Stellate Ganglion*
4.Clinical and Radiologic Outcome of Intertrochanteric Fracture Treatment Using TFNA (Trochanteric Fixation Nail-Advanced)
Hyeon Joon LEE ; Hyun Bai CHOI ; Ba Rom KIM ; Seung Hwan JO ; Sang Hong LEE
Journal of the Korean Fracture Society 2021;34(3):105-111
Purpose:
This study evaluated the clinical and radiological outcomes of TFNA (Trochanteric Fixation NailAdvanced; Depuy Synthes) for the treatment of proximal femur fractures.
Materials and Methods:
This was a retrospective study of 64 patients diagnosed with a proximal femur fracture from January 2019 to November 2019. The patient’s demographic data, preoperatively and postoperatively Koval grade, modified Harris hip score, EQ-5D (Euro-Qol-5 Dimension), sliding and advancement of the blade, radiologic outcome, and complications were investigated.
Results:
Fifty patients were available for evaluation at one year postoperatively. The patients reported the following: the Koval grade decreased after surgery; the modified Harris hip score decreased from 78.56±8.88 to 72.74±6.59 (p=0.149); the mean EQ-5D decreased from 0.75±0.09 to 0.72±0.06 (p=0.000). Satisfactory reduction was achieved on a postoperative radiographic examination in 47 patients in six months. Complications occurred in seven cases.
Conclusion
TFNA is considered an appropriate implant for treating intertrochanteric fractures of the femur with a minimum follow-up of one year.
5.Clinical and Radiologic Outcome of Intertrochanteric Fracture Treatment Using TFNA (Trochanteric Fixation Nail-Advanced)
Hyeon Joon LEE ; Hyun Bai CHOI ; Ba Rom KIM ; Seung Hwan JO ; Sang Hong LEE
Journal of the Korean Fracture Society 2021;34(3):105-111
Purpose:
This study evaluated the clinical and radiological outcomes of TFNA (Trochanteric Fixation NailAdvanced; Depuy Synthes) for the treatment of proximal femur fractures.
Materials and Methods:
This was a retrospective study of 64 patients diagnosed with a proximal femur fracture from January 2019 to November 2019. The patient’s demographic data, preoperatively and postoperatively Koval grade, modified Harris hip score, EQ-5D (Euro-Qol-5 Dimension), sliding and advancement of the blade, radiologic outcome, and complications were investigated.
Results:
Fifty patients were available for evaluation at one year postoperatively. The patients reported the following: the Koval grade decreased after surgery; the modified Harris hip score decreased from 78.56±8.88 to 72.74±6.59 (p=0.149); the mean EQ-5D decreased from 0.75±0.09 to 0.72±0.06 (p=0.000). Satisfactory reduction was achieved on a postoperative radiographic examination in 47 patients in six months. Complications occurred in seven cases.
Conclusion
TFNA is considered an appropriate implant for treating intertrochanteric fractures of the femur with a minimum follow-up of one year.
6.Clinical Evaluation of Unilateral Mandibular Condyle Fracture Combined with Midface Fracture
Seung Ki MIN ; Dong Keun LEE ; Seung Hwan OH ; Eun Taek LEE ; I Su JO ; Jong Goo KIM
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 2001;23(6):516-522
No abstract available.
Mandibular Condyle
7.The clinical study of 37 pregnancy women with aplastic anemia.
Keun Ho LEE ; Jong Kun LEE ; Jin Hee YOO ; Jee Hyun LEE ; Hyeong Kwon JO ; Ji Young LEE ; Seung Jo KIM ; Soo Pyung KIM
Korean Journal of Obstetrics and Gynecology 1999;42(11):2536-2541
Objectives: To determine whether the clinical aspect of aplastic anemia is influenced by pregnancy. METHODS: We reviewed 37 cases of pregnant aplastic anemia patients during Jan. 1989 to Dec. 1998, and examined age, parity, progress of pregnancy, termination methods, obstetrics & neonatal complications, hematologic change, and treatment modality by medical records. RESULTS: According to onset of disease, patients were divided into pre-pregnant diagnosed group(n=12) and during-pregnancy diagnosed group(n=25). Mean age of diagnosis was 29.4yr, 89.2% were nulliparous, and 51.4% were severe aplastic anemic patients. All patients underwent 50 pregnancy. Mean gestational period was 37wks, birth weight was 2569gram, and, except in 7 cases of abortion, 43 cases were delivered transvaginally or transabdominally(51.2% vs. 48.8%). Preeclampsia, eclampsia, preterm labor, restricted growth, and distress were complicated and decreased hemoglobin, hematocrit, reticulocyte, platelet were reversed after termination in pregnancy associated group. Treatment modality during pregnancy included transfusion, steroid, anti-lymphocytic globulin, anti-thymocytic globulin and IVGV, and remission rate was 45.5% in pregnancy associated group. CONCLUSION: We concluded that pregnancy is associated with aplastic anemia as a high risk factor, and intensive treatment is needed.
Anemia, Aplastic*
;
Birth Weight
;
Blood Platelets
;
Diagnosis
;
Eclampsia
;
Female
;
Hematocrit
;
Humans
;
Medical Records
;
Obstetric Labor, Premature
;
Obstetrics
;
Parity
;
Pre-Eclampsia
;
Pregnancy*
;
Reticulocytes
;
Risk Factors
8.Diffuse Lamellar Keratitis after Trabeculectomy in a Patient with Laser in situ Keratomileusis.
Ji Hyoung CHEY ; Seung Hwan JO ; Chang Kyu LEE
Journal of the Korean Ophthalmological Society 2017;58(1):87-92
PURPOSE: In the present study, a case of diffuse lamellar keratitis after trabeculectomy in a patient who had received laser in situ keratomileusis many years prior is reported. CASE SUMMARY: A 54-year-old male diagnosed with binocular primary open-angle glaucoma underwent trabeculectomy in the left eye because of poor intraocular pressure control and visual field defect progression even with maximal medical treatments. Faint, non-progressing subepithelial opacities pre-existed in the left cornea but no treatment was administered. The patient had a history of laser in situ keratomileusis in both eyes 12 years prior. On the first postoperative day, conjunctival buttonhole was found and because leaking from the hole continued, topical steroid was discontinued on the fourth postoperative day. On the seventh postoperative day, diffuse lamellar keratitis developed on the central cornea without intraocular pressure elevation, and diffuse infiltration under the corneal flap was observed in the anterior segment on optical coherence tomography. The patient was treated with topical steroid eye drops every 3 hours for the first 2 days and the frequency was increased to every hour because the keratitis did not improve. On the ninth postoperative day, keratitis began to improve and 2 months postoperatively, subepithelial lamellar infiltration improved significantly but did not show complete remission. CONCLUSIONS: Diffuse lamellar keratitis can develop in an eye with laser in situ keratomileusis after trabeculectomy if appropriate treatment with topical steroid eye drops is not administered.
Cornea
;
Glaucoma, Open-Angle
;
Humans
;
Intraocular Pressure
;
Keratitis*
;
Keratomileusis, Laser In Situ*
;
Male
;
Middle Aged
;
Ophthalmic Solutions
;
Telescopes
;
Tomography, Optical Coherence
;
Trabeculectomy*
;
Visual Fields
9.Stress analysis with nonlinear modelling of the load transfer characteristics across the osseointegrated interfaces of dental implant.
The Journal of Korean Academy of Prosthodontics 2004;42(3):267-277
A modelling scheme for the stress analysis taking into account load transfer characteristics of the osseointegrated interfaces between dental implant and surrounding alveolar bone was investigated. Main aim was to develop a more realistic simulation methodology for the load transfer at the interfaces than the prefect bonding assumption at the interfaces which might end up the reduced level in the stress result. In the present study, characteristics of osseointegrated bone/implant interfaces was modelled with material nonlinearity assumption. Bones at the interface were given different stiffness properties as functions of stresses. Six different models, i.e. tens0, tens20, tens40, tens60, tens80, and tens100 of which the tensile moduli of the bones forming the bone/implant interfaces were specified from 0, 20, 40, 60, 80, and 100 percents, respectively, of the compressive modulus were analysed. Comparisons between each model were made to study the effect of the tensile load carrying abilities, i.e. the effectivity of load transfer, of interfacial bones on the stress distribution. Results of the present study showed significant differences in the bone stresses across the interfaces. The peak stresses, however, were virtually the same regardless of the difference in the effectivity of load transfer, indicating the conventional linear modelling scheme which assumes perfect bonding at the bone/implant interface can be used without causing significant errors in the stress levels.
Dental Implants*
;
Lifting
;
Linear Models
;
Nonlinear Dynamics*
10.A case of cutaneous metastasis probably originating from primary gallbladder carcinoma.
Seung Heon KHANG ; Hee Jin JO ; Kwang Joong KIM ; Chong Ju LEE
Korean Journal of Dermatology 1991;29(5):676-680
No abstract available.
Gallbladder*
;
Neoplasm Metastasis*