1.Predictive Findings of Visual Outcome in Spectral Domain Optical Coherence Tomography after Ranibizumab Treatment in Age-related Macular Degeneration.
Yoon Hyung KWON ; Dong Kyu LEE ; Hyung Eun KIM ; Oh Woong KWON
Korean Journal of Ophthalmology 2014;28(5):386-392
PURPOSE: To investigate which spectral domain optical coherence tomography (SD-OCT) findings predict visual outcome after anti-vascular endothelial growth factor (VEGF) treatment in neovascular age-related macular degeneration (NV-AMD). METHODS: We reviewed the medical records of patients with treatment-naive NV-AMD who underwent three or more consecutive anti-VEGF injections. The patients were divided into three groups according to their changes of visual acuity (VA); improved (group I), static (group S), or worsened (group W). We assessed the incidences and values of all available SD-OCT findings of these groups, compared these findings between the three groups and compared the initial values with the post-treatment values. RESULTS: Better initial VA and longer external limiting membrane (ELM) length were associated with less change in VA after anti-VEGF treatment. The initial VA was mildly correlated with initial photoreceptor inner and outer segment junction (IS/OS) length and initial ELM length. The final VA was also mildly correlated with the final IS/OS length and the final ELM length. VA was significantly changed after anti-VEGF treatment in groups W and I. With regard to incidence, disruption of the IS/OS (IS/OS-D), disruption of the ELM (ELM-D) and ELM length differed significantly between the three groups, particularly ELM-D. The incidences of IS/OS-D and ELM-D in group I were significantly lower than those in groups S and W, and those in group S were also lower than those in group W. The ELM length in group I was significantly longer than it was in groups S and W, and the ELM length in group S was longer than that for group W. However, these three findings did not change after the anti-VEGF treatment. CONCLUSIONS: Initial IS/OS-D, ELM length and particularly ELM-D can be useful predictors of the visual outcome after anti-VEGF treatment in NV-AMD patients.
Aged
;
Aged, 80 and over
;
Angiogenesis Inhibitors/*therapeutic use
;
Choroidal Neovascularization/*drug therapy/physiopathology
;
Female
;
Humans
;
Intravitreal Injections
;
Male
;
Middle Aged
;
Ranibizumab/*therapeutic use
;
Retinal Photoreceptor Cell Inner Segment/pathology
;
Retinal Photoreceptor Cell Outer Segment/pathology
;
Tomography, Optical Coherence
;
Vascular Endothelial Growth Factor A/antagonists & inhibitors
;
Visual Acuity/*physiology
;
Wet Macular Degeneration/*drug therapy/physiopathology
2.Therapeutic Thai of Recombinant Human Interferon-αA for a Case of Kaposi's Sarcoma.
Dae Won GOO ; Young Jin OH ; Hyung Ok KIM ; Jeung Kyu KIM ; Chung Won KIM
Annals of Dermatology 1989;1(1):28-32
No abstract available.
Asian Continental Ancestry Group*
;
Humans
;
Humans*
;
Sarcoma, Kaposi*
3.A Case of Progressive Zosteriform Macular Pigmented Lesion.
Oh Chan KWON ; Jong Kyu YANG ; Dou Hee YOON ; Tae Yoon KIM ; Hyung Ok KIM
Korean Journal of Dermatology 1998;36(3):456-459
Progressive zosteriform macular pigmented lesion(PZMPL) is a chronic pigmentary dermatosis similar to progressive cribriform and zosteriform hyperpigmentation(PCZH). This dermatosis described by Simoes in 1980 is characterized by a uniformly tanned macular pigmented lesion in a zosteriform distribution preceded by multiple pruritic macular pigmentation in a part of the dermatome for a period. PZMPL is not a fully understood disease entity but it is thought to be a variant of PCZH. It is differentiated from PCZH by accompanying pruritus as a prodromal symptom, a characteristic clinical course, and histological findings such as pigmentary incontinence. We report herein a case of PZMPL in a 17 year-old girl with the pigmentary skin lesion extending from the left forearm to the left chest along the Blaschkos line. The histological findings revealed increased melanin pigments in the basal layer and focal pigmentary incontinence in the upper dermis. To our knowledge, this case is the first report of PZMPL in korea thought to be the same case reported by Simoes.
Adolescent
;
Dermis
;
Female
;
Forearm
;
Humans
;
Korea
;
Melanins
;
Pigmentation
;
Prodromal Symptoms
;
Pruritus
;
Skin
;
Skin Diseases
;
Thorax
;
Triacetoneamine-N-Oxyl
4.Clinical Study on Torsades de Pointes.
In Taek OH ; Kyu Hyung RYU ; Kyung Pyo HONG ; Chong Yun RIM ; Young Bahk KOH ; Young LEE
Korean Circulation Journal 1989;19(4):716-725
Torsades de pointes is characterized by paroxysms of ventricular tachycardia at rates typically greater than 200 beats/min in which QRS morphology shows alternating polarity in an undulating pattern so that the complexes appear to be twisting about the beseline;this arrhythmia is virtually always associated with prolongation of the QT interval. Its importance lies not in its unusual structure but in the potentially fatal outcome if conventional treatment is administred. Torsades de pointes was diagnosed in 4 patients;the first with hypokalemia, the second with congenital QT prolongation syndrome, the third with amiodarone, the fourth with organophosphorous and hypokalemia. Treatment of these patients consisted of potassium supply, isoproterenol, lidocaine, phenobarbital, tenormin, phenytoin, cardioversion, atropine. Three patients improved successfully, but one patient died, as a direct result of the ensuing ventricular fibrillation and cardiac arrest on one hour after admission.
Amiodarone
;
Arrhythmias, Cardiac
;
Atenolol
;
Atropine
;
Electric Countershock
;
Fatal Outcome
;
Heart Arrest
;
Humans
;
Hypokalemia
;
Isoproterenol
;
Lidocaine
;
Phenobarbital
;
Phenytoin
;
Potassium
;
Tachycardia, Ventricular
;
Torsades de Pointes*
;
Ventricular Fibrillation
5.Clinical Review of Tuberculous Meningitis in Children.
Hyung Kook KIM ; Mi Aie HAN ; Jong Wan KIM ; Chang Kyu OH ; Mahn Kyoo YANG
Journal of the Korean Pediatric Society 1988;31(7):892-900
No abstract available.
Child*
;
Humans
;
Tuberculosis, Meningeal*
6.An experimental study on the effect of acidity of papaverine HCl on fibrosis of the corpus cavernosum of rabbit.
In Kyu KIM ; Chung Hwan OH ; Sae Chul KIM ; Jae Hyung YOO
Korean Journal of Urology 1992;33(2):325-329
This study was designed to investigate whether fibrosis of the corpus cavernoum(CC) induced by repeated intracavernous injection of papaverine HCl was related to pH of the drug. Forty-eight New Zealand White rabbits weighing 2.5kg-3.0kg were divided into 4 groups of 12 animals each. Group 1 received isotonic saline. Group 2; pH 2.0 papaverine HCl. Group 3; pH 3.0 papaverine HCl and Group 4; pH 4.0 papaverine HCl. The solution (0.1ml isotonic saline or 2mg. papaverine HCl of seeh pH) was injected intracorporeally twice every week for 6 months. Every one month since beginning of the injection, 2 animals of each group were sacrificed. the penis was observed with H and E and Masson`s lrichomme stain microscopically. No sign of Fibrosis was found in the CC of the group l even after 6months of injection. However, Group 2. 3 and 4 began to show focal of diffuse thin fibrotic changes after 2 months of injection. The fibrotic changes progressed more and more in accordance with the Frequency of papaverine HCl injection. After 4 months of injection. Group 2 showed diffuse thick fibrosis whereas Group 3 and 4 showed diffuse thin or focal thick fibrosis. In conclusion, intracavernous papaverine itself seems to play a main role to induce fibrosis of CC. However, the acidity of the papaverine HCl also might be responsible to development of the fibrosis when injected repeatedly for a long period.
Animals
;
Fibrosis*
;
Hydrogen-Ion Concentration
;
Male
;
Papaverine*
;
Penis
;
Rabbits
7.Transient Left Ventricle Systolic Dysfunction in Amniotic Fluid Embolism.
Dae Gyun PARK ; Kyung Soon HONG ; Young Cheoul DOO ; Kyoo Rok HAN ; Dong Jin OH ; Kyu Hyung RYU
Korean Circulation Journal 1999;29(8):822-827
Amniotic fluid embolism (AFE) is a rare peripartum complication with a mortality rate of 61 to 86%. The main clinical manifestations include shock, acute pulmonary edema, neurologic signs, and coagulopathies. Most diagnosis of AFE is made on the postmortem examination of the maternal pulmonary vasculature, but antemortem confirmation of amniotic fluid material by aspiration of pulmonary blood is rare. We report the first case in Korea who survived from amniotic fluid embolism confirmed by the identification of amniotic fluid debris in pulmonary artery blood. Serial echocardiographic changes of left ventricle systolic dysfunction are also described with a brief review of literatures.
Amniotic Fluid*
;
Autopsy
;
Diagnosis
;
Echocardiography
;
Embolism, Amniotic Fluid*
;
Female
;
Heart Ventricles*
;
Korea
;
Mortality
;
Neurologic Manifestations
;
Peripartum Period
;
Pregnancy
;
Pulmonary Artery
;
Pulmonary Edema
;
Shock
8.Neutrophil to Lymphocyte Ratio at Admission: Prognostic Factor in Patients With Acute Ischemic Stroke.
Jong Kyu PARK ; Hyung Geun OH ; Tai Hwan PARK
Journal of the Korean Neurological Association 2010;28(3):172-178
BACKGROUND: Inflammatory mechanisms play an important role in acute brain ischemia, and they contribute to the functional outcome. The neutrophil-to-lymphocyte ratio (NLR) has recently been described as a predictor of clinical outcomes in patients with acute coronary syndrome. This study assessed the clinical significance of NLR as a new predictor of the outcome in patients with acute ischemic stroke. METHODS: The study included 371 patients diagnosed as acute ischemic stroke within 48 hours after the onset. All subjects were divided into three groups according to tertiles of the NLR in the initial blood test. Functional outcomes were divided into two groups at 3 months and 1 year after stroke onset: favorable (mRS 0~2) or unfavorable (mRS 3~6). RESULTS: The proportion of patients with mRS 0~2 (favorable outcome) decreased as the NLR increased from the first tertile to the third tertile at discharge (74%, 62.9 and 49.2, p<0.001) and at 3 months (74%, 66.9 and 42.7, p<0.001) and 1 year (67.5%, 64.5 and 41.1, p<0.001) after stroke. NLR was higher in patients with an unfavorable outcome than in those with a favorable outcome (3.88 vs. 2.27 at 3 months, p<0.01; 3.67 vs. 2.31 at 1 year, p<0.001). Multivariate analysis revealed that the significant predictors of an unfavorable outcome at 3 months were NLR in the highest tertile (OR 2.28, 95% CI 1.13~4.60), age (OR 1.04, 95% CI 1.01~1.07), and NIHSS score (OR 1.27, 95% CI 1.18~1.36) at admission. CONCLUSIONS: NLR at admission can be used as a predictor of functional outcome at 3 months after ischemic stroke.
Acute Coronary Syndrome
;
Brain Ischemia
;
Hematologic Tests
;
Humans
;
Lymphocytes
;
Multivariate Analysis
;
Neutrophils
;
Prognosis
;
Stroke
9.The Short-term Efficacy of Subthreshold Micropulse Yellow (577-nm) Laser Photocoagulation for Diabetic Macular Edema.
Yoon Hyung KWON ; Dong Kyu LEE ; Oh Woong KWON
Korean Journal of Ophthalmology 2014;28(5):379-385
PURPOSE: This pilot study aimed to evaluate the efficacy and safety of subthreshold micropulse yellow (577-nm) laser photocoagulation (SMYLP) in the treatment of diabetic macular edema (DME). METHODS: We reviewed 14 eyes of 12 patients with DME who underwent SMYLP with a 15% duty cycle at an energy level immediately below that of the test burn. The laser exposure time was 20 ms and the spot diameter was 100 microm. Laser pulses were administered in a confluent, repetitive manner with a 3 x 3 pattern mode. RESULTS: The mean follow-up time was 7.9 ± 1.6 months. The baseline-corrected visual acuity was 0.51 ± 0.42 logarithm of the minimum angle of resolution (logMAR), which was improved to 0.40 ± 0.35 logMAR (p = 0.025) at the final follow-up. The central macular thickness at baseline was 385.0 ± 111.0 microm; this value changed to 327.0 ± 87.7 microm (p = 0.055) at the final follow-up. CONCLUSIONS: SMYLP showed short-term efficacy in the treatment of DME and did not result in retinal damage. However, prospective, comparative studies are needed to better evaluate the efficacy and safety of this treatment.
Aged
;
Diabetic Retinopathy/diagnosis/physiopathology/*surgery
;
Female
;
Fluorescein Angiography
;
Follow-Up Studies
;
Humans
;
*Laser Coagulation
;
Lasers, Semiconductor/*therapeutic use
;
Macular Edema/diagnosis/physiopathology/*surgery
;
Male
;
Middle Aged
;
Pilot Projects
;
Tomography, Optical Coherence
;
Treatment Outcome
;
Visual Acuity/physiology
10.The Comparative Hemodynamic Effects between Low Osmolar Ionic(Ioxaglate) and Non-ionic(Iopromide) Contrast Media during Left Ventriculography.
Cheol Hong KIM ; Kyu Hyung RYU ; Kwon Yeop LEE ; Dong Jin OH ; Kyung Pyo HONG ; Yung LEE
Korean Circulation Journal 1997;27(11):1169-1179
BACKGROUND: Various hemodynamic changes occur during left ventriculography, such as myocardial depression, hypotension, peripheral circulatory changes, ECG changes(such as arrhythmias and conduction abnormalities) and anaphylactic reaction etc. These effects are somewhat caused by osmolality, ionic concentration of Na+, viscosity and molecular weight of contrast dye and underlying various heart disease itself during left ventriculography. We compared the hemodynamic differences between ionic(ioxaglate) and non-ionic(iopromide) low osmolar contrast agents during routine ventriculography. METHODS: In a prospective, randomized, double blind study of 124 patients underwent left ventriculography, we examined the various hemodynamic effects of the two contrast agents on left ventricle. All subjects were divided into 2 groups : ioxaglate and iopromide groups. Also, each agent was used in randomized double blind fashion in both groups ; normal control subjects(14 in ioxaglate group : 12 in iopromide group) and subjects whose ejection fraction less than 50%(12 in ioxaglate group : 16 in iopromide group). Left ventricular systolic pressure(LVSP), left ventricular end-diastolic pressure(LVEDP), maximum dP/dt, (dP/dt)/P ratio, peak - dP/dt and Tau were obtained immediately before and left ventriculography. RESULTS: 1) In total(normal+angina+MI) subjects of both groups, LVEDP(p<0.001) and maximum dP/dt(p<0.001) were increased and T(au) was reduced significantly(p<0.05). But LVSP(p<0.001) and peak - dP/dt(p<0.005) were increased significantly only in ioxaglate group. 2)In normal(control) subjects, there were no significant differences in both groups, except LVEDP that was increased by equal magnitude(p<0.001). 3) In subjects with ejection fraction less than 50%, there were no significant hemodynamic differences in both contrast agent groups bur LVEDP increased significantly in both groups(p<0.001). CONCLUSIONS: This present study showed that both ionic(ioxaglate) and non-ionic(iopromide) low osmolar contrast agents were very safe without any significant side effects except two agents caused an increase in LVEDP and did not show major differences between ioxaglate and iopromide contrast agents from a hemodynamic point of view. Two contrast agents tend to improve contractilities and diastolic properties of left ventricle since both caused an increase in maximum dP/dt and a reduce in Tau, in total subjects. This effect may be caused by cardiac compensation, probably because of osmolality, volume loading by contrast agents and secondary activation of sympathetic system immediately after injection of contrast agents. Thus, it is concluded that two ioxaglate and iopromide contrast agents amy be used safely in left ventriculography in patients with and without left ventricular dysfunction, with paying attention to an increase in LVEDP.
Anaphylaxis
;
Arrhythmias, Cardiac
;
Compensation and Redress
;
Contrast Media*
;
Depression
;
Double-Blind Method
;
Electrocardiography
;
Heart Diseases
;
Heart Ventricles
;
Hemodynamics*
;
Humans
;
Hypotension
;
Ioxaglic Acid
;
Molecular Weight
;
Osmolar Concentration
;
Prospective Studies
;
Ventricular Dysfunction, Left
;
Viscosity