1.Treatment Efficacy of Various Maneuvers for Lateral Canal Benign Paroxysmal Positional Vertigo With Apogeotropic Nystagmus: A Randomized Controlled Trial
Hyun Jin LEE ; Eun-Ju JEON ; Sungil NAM ; Seog-Kyun MUN ; Shin-Young YOO ; Seong Hyun BU ; Jin Woong CHOI ; Jae Ho CHUNG ; Seok Min HONG ; Seung-Hwan LEE ; Min-Beom KIM ; Ja-Won KOO ; Hyun Ji KIM ; Jae-Hyun SEO ; Seong-Ki AHN ; Shi Nae PARK ; Minbum KIM ; Won-Ho CHUNG
Clinical and Experimental Otorhinolaryngology 2023;16(3):251-258
		                        		
		                        			 Objectives:
		                        			The aim of this study was to determine the most effective treatment approach by comparing the impacts of various otolith reduction techniques in patients with apogeotropic lateral semicircular canal benign paroxysmal positional vertigo (LC-BPPV). 
		                        		
		                        			Methods:
		                        			We performed a multicenter randomized prospective study from January to December 2015, involving 72 consecutive patients with apogeotropic LC-BPPV. The patients were divided into three treatment groups: therapeutic head-shaking (group A), the Gufoni-Appiani maneuver (group B), and the cupulolith repositioning maneuver (CuRM; group C). Each group underwent evaluation and treatment up to the fourth week. Treatment success was defined as the disappearance of positional vertigo and nystagmus. 
		                        		
		                        			Results:
		                        			This study included 72 patients (49 male and 23 female), with a mean (±standard deviation) age of 55.4±13.5 years. The mean duration of vertigo experienced prior to treatment was 3.9±4.4 days. The mean latency and duration of nystagmus were 2.7±3.0 seconds and 47.9±15.8 seconds, respectively. The overall treatment frequency was 2.0±0.9. The number of treatments differed significantly among the three groups (P<0.05). After 4 weeks, the success rates for groups A, B, and C were 90.5%, 92.3%, and 100%, respectively. No significant difference was observed in the success rate across treatment methods and periods (P>0.05). However, CuRM was the only method with a 100% treatment success rate. 
		                        		
		                        			Conclusion
		                        			While no clear difference was observed among the three treatments for LC-BPPV, CuRM was found to be superior to the other approaches in the long term. 
		                        		
		                        		
		                        		
		                        	
2.Moderate-Intensity Rosuvastatin Plus Ezetimibe Versus High-Intensity Rosuvastatin for Target Low-Density Lipoprotein Cholesterol Goal Achievement in Patients With Recent Ischemic Stroke: A Randomized Controlled Trial
Keun-Sik HONG ; Oh Young BANG ; Jong-Ho PARK ; Jin-Man JUNG ; Sang-Hun LEE ; Tae-Jin SONG ; Hyo Suk NAM ; Hee-Kwon PARK ; Keun-Hwa JUNG ; Sung Hyuk HEO ; Jaseong KOO ; Kyung-Ho YU ; Kwang-Yeol PARK ; Chi Kyung KIM ; Hong-Kyun PARK ; Jiyoon LEE ; Juneyoung LEE ; Woo-Keun SEO
Journal of Stroke 2023;25(2):242-250
		                        		
		                        			 Background:
		                        			and Purpose Moderate-intensity statin plus ezetimibe versus high-intensity statin alone may provide a greater low-density lipoprotein cholesterol (LDL-C) reduction in patients with recent ischemic stroke. 
		                        		
		                        			Methods:
		                        			This randomized, open-label, controlled trial assigned patients with recent ischemic stroke <90 days to rosuvastatin/ezetimibe 10/10 mg once daily (ROS10/EZT10) or to rosuvastatin 20 mg once daily (ROS20). The primary endpoint was LDL-C reduction ≥50% from baseline at 90 days. Key secondary endpoints were LDL-C <70 mg/dL and multiple lipid goal achievement, and composite of major vascular events. 
		                        		
		                        			Results:
		                        			Of 584 randomized, 530 were included in the modified intention-to-treat analysis. The baseline LDL-C level was 130.2±34.7 mg/dL in the ROS10/EZT10 group and 131.0±33.9 mg/dL in the ROS20 group. The primary endpoint was achieved in 198 patients (72.5%) in the ROS10/EZT10 group and 148 (57.6%) in the ROS20 group (odds ratio [95% confidence interval], 1.944 [1.352–2.795]; P= 0.0003). LDL-C level <70 mg/dL was achieved in 80.2% and 65.4% in the ROS10/EZT10 and ROS20 groups (P=0.0001). Multiple lipid goal achievement rate was 71.1% and 53.7% in the ROS10/EZT10 and ROS20 groups (P<0.0001). Major vascular events occurred in 1 patient in the ROS10/EZT10 group and 9 in the ROS20 group (P=0.0091). The adverse event rates did not differ between the two groups. 
		                        		
		                        			Conclusion
		                        			Moderate-intensity rosuvastatin plus ezetimibe was superior to high-intensity rosuvastatin alone for intensive LDL-C reduction in patients with recent ischemic stroke. With the combination therapy, more than 70% of patients achieved LDL-C reduction ≥50% and 80% had an LDL-C <70 mg/dL at 90 days. 
		                        		
		                        		
		                        		
		                        	
3.Relationship between the Morphology of Diabetic Macular Edema and Renal Dysfunction in Diabetes.
Nam Kyun KOO ; Hyun Cheol JIN ; Kwang Soo KIM ; Yu Cheol KIM
Korean Journal of Ophthalmology 2013;27(2):98-102
		                        		
		                        			
		                        			PURPOSE: To determine the correlation between renal dysfunction and the morphologic changes of macular edema in diabetes. METHODS: The current study included 93 patients with diabetic macular edema based on optical coherence tomography (OCT) who completed systemic condition testing one month before or after the OCT. Based on the OCT findings, patients were divided into the following five groups: group A (diffuse), group B (cystoid), group C (serous), group D (vitreomacular tractional), and group E (a mixed presence of cystoid and serous types). In each group, we performed a retrospective analysis of serum albumin, urine albumin, and serum creatinine. We also analyzed the patients in whom serum albumin was <3.0 mg/dL and serum creatinine was >1.6 mg/dL. Urine albumin was measured in all five groups. In each group, a comparative analysis was performed using Fisher's exact test. RESULTS: The number of patients who were assigned to groups A to E was 15, 46, 6, 3, and 23, respectively. According to a comparison of the patients in whom the serum albumin and serum creatinine were abnormal, there was no significant difference among the five groups. The proportion of patients in whom the urine albumin was abnormal was significantly greater in group C (67%) than in groups A (7%), B (20%), or E (22%). CONCLUSIONS: Serous-type macular edema occurred more frequently than other types of macular edema in patients with albuminuria.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Diabetic Nephropathies/*pathology
		                        			;
		                        		
		                        			Diabetic Retinopathy/*pathology
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Macular Edema/*classification/*pathology
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			*Tomography, Optical Coherence
		                        			
		                        		
		                        	
4.Relationship between the Morphology of Diabetic Macular Edema and Renal Dysfunction in Diabetes.
Nam Kyun KOO ; Hyun Cheol JIN ; Kwang Soo KIM ; Yu Cheol KIM
Korean Journal of Ophthalmology 2013;27(2):98-102
		                        		
		                        			
		                        			PURPOSE: To determine the correlation between renal dysfunction and the morphologic changes of macular edema in diabetes. METHODS: The current study included 93 patients with diabetic macular edema based on optical coherence tomography (OCT) who completed systemic condition testing one month before or after the OCT. Based on the OCT findings, patients were divided into the following five groups: group A (diffuse), group B (cystoid), group C (serous), group D (vitreomacular tractional), and group E (a mixed presence of cystoid and serous types). In each group, we performed a retrospective analysis of serum albumin, urine albumin, and serum creatinine. We also analyzed the patients in whom serum albumin was <3.0 mg/dL and serum creatinine was >1.6 mg/dL. Urine albumin was measured in all five groups. In each group, a comparative analysis was performed using Fisher's exact test. RESULTS: The number of patients who were assigned to groups A to E was 15, 46, 6, 3, and 23, respectively. According to a comparison of the patients in whom the serum albumin and serum creatinine were abnormal, there was no significant difference among the five groups. The proportion of patients in whom the urine albumin was abnormal was significantly greater in group C (67%) than in groups A (7%), B (20%), or E (22%). CONCLUSIONS: Serous-type macular edema occurred more frequently than other types of macular edema in patients with albuminuria.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Diabetic Nephropathies/*pathology
		                        			;
		                        		
		                        			Diabetic Retinopathy/*pathology
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Macular Edema/*classification/*pathology
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			*Tomography, Optical Coherence
		                        			
		                        		
		                        	
5.Multicenter Study on the Clinician's Diagnostic and Therapeutic Approaches for Benign Paroxysmal Positional Vertigo in Korea
Eun Ju JEON ; Won Ho CHUNG ; Jeong Hwan CHOI ; Eui Cheol NAM ; Hong Ju PARK ; Jong Dae LEE ; Won Sang LEE ; Kyu Sung KIM ; Eui Kyung GOH ; Ja Won KOO ; Min Bum KIM ; Min Beom KIM ; Se Hyung KIM ; Young Jin KIM ; Chang Hee KIM ; Sung Il NAM ; Seog Kyun MUN ; Ga Young PARK ; Sang Yoo PARK ; Shi Nae PARK ; Chang Hoon BAE ; Sung Hyun BOO ; Myung Whan SUH ; Jae Hyun SEO ; Eun Jin SON ; Jae Jun SONG ; Jae Jin SONG ; Joong Wook SHIN ; Dae Bo SHIM ; Seong Ki AHN ; Hye Youn YOUM ; Shin Young YOO ; Dong Hee LEE ; Seung Hwan LEE ; Chang Ho LEE ; Hyun Seok LEE ; Hwan Ho LEE ; Hyo Jeong LEE ; Yun Hoon CHOUNG ; Seung Hyo CHOI ; Jee Sun CHOI ; Seok Min HONG ; Sung Kwang HONG
Journal of the Korean Balance Society 2013;12(3):79-92
		                        		
		                        			
		                        			BACKGROUND AND OBJECTIVES: It is necessary to establish the most efficient diagnostic and therapeutic method for benign paroxysmal positional vertigo (BPPV), which is appropriate for Korean healthcare system. We aimed to evaluate current state of Korean clinician's diagnostic and therapeutic approaches for BPPV. MATERIALS AND METHODS: A 16-item survey was emailed to the members of dizziness department of Otology Research Interest Group in the Korean Otologic Society (n=68). 43 were returned and analyzed. RESULTS: All respondents (100%) used Dix-Hallpike test as a diagnostic tool for vertical canal-BPPV. Supine roll test was used for diagnosing lateral canal BPPV in nearly all the respondents (97.7%). Epley maneuver was chosen as otolith repositioning maneuver (ORM) for posterior canal BPPV in all respondents and barbecue rotation (BBQ) was used for treating lateral canal BPPV with geotropic nystagmus in 95.3% of respondents. Extreme variation was noted for therapeutic approach of lateral canal BPPV with ageotropic nystagmus BBQ, with 4 kinds of ORM and adjunctive measures to liberate otolith from cupula, while BBQ was again the most commonly used ORM (76.7%). CONCLUSION: The development of practical and efficient ORM for lateral canal BPPV with ageotropic nystagmus is necessary.
		                        		
		                        		
		                        		
		                        			Surveys and Questionnaires
		                        			;
		                        		
		                        			Delivery of Health Care
		                        			;
		                        		
		                        			Dizziness
		                        			;
		                        		
		                        			Electronic Mail
		                        			;
		                        		
		                        			Korea
		                        			;
		                        		
		                        			Otolaryngology
		                        			;
		                        		
		                        			Otolithic Membrane
		                        			;
		                        		
		                        			Public Opinion
		                        			;
		                        		
		                        			Vertigo
		                        			
		                        		
		                        	
6.A Giant Unruptured Aneurysm of Distal Internal Carotid Artery Presenting with Compressive Optic Neuropathy.
Journal of the Korean Ophthalmological Society 2012;53(9):1368-1371
		                        		
		                        			
		                        			PURPOSE: To report a case of compressive optic neuropathy due to a giant unruptured aneurysm of a distal internal carotid artery. CASE SUMMARY: A 68-year-old female presented with a one-week history of visual disturbance in her left eye. The patient had no underlying disease except hypertension. Best corrected visual acuity was 20/20 in the right eye and 8/20 in the left eye. The color perception test showed abnormal findings in the left eye. Slit lamp examination showed no abnormal finding except incipient cataract in both eyes. Additionally, fundus examination showed no abnormal finding. Brain MRI and MRA revealed a 2.4 x 2.2 x 3.0-cm-sized unruptured giant aneurysm on the left internal carotid artery. CONCLUSIONS: A giant aneurysm should be considered as a cause for acute or subacute optic neuropathy in a patient with hypertension.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aneurysm
		                        			;
		                        		
		                        			Brain
		                        			;
		                        		
		                        			Carotid Artery, Internal
		                        			;
		                        		
		                        			Cataract
		                        			;
		                        		
		                        			Color Perception Tests
		                        			;
		                        		
		                        			Eye
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Hypertension
		                        			;
		                        		
		                        			Optic Nerve Diseases
		                        			;
		                        		
		                        			Visual Acuity
		                        			
		                        		
		                        	
7.A Case of Subconjunctival Foreign Body Migration after Collagen-Containing Filler Injection.
Nam Kyun KOO ; Yu Cheol KIM ; Kwang Soo KIM
Journal of the Korean Ophthalmological Society 2012;53(4):588-591
		                        		
		                        			
		                        			PURPOSE: To report a case of subconjunctival foreign body migration in both eyes after collagen-containing filler injection. CASE SUMMARY: A 51-year-old female, who had been treated with collagen-containing filler in her eyelid, nose, and forehead for cosmetic complaints four months earlier, presented to our clinic with decreased visual acuity and foreign body sensation in both eyes. Slit lamp examination revealed moderate nucleosclerosis and subcapsular opacity in her crystalline lens, in addition to scattered subconjunctival foreign body infiltration in both eyes. Cataract extraction with posterior chamber lens implantation was performed, and the subconjunctival foreign body was also partially removed. Biopsy of the remaining foreign body was performed, and examination revealed foreign material and multivacuolated cells in the conjunctiva. CONCLUSIONS: Clinicians and patients should be aware of the risk of migration of collagen-containing filler inject at or near the eyelid, to the eyeball, including the conjunctiva.
		                        		
		                        		
		                        		
		                        			Biopsy
		                        			;
		                        		
		                        			Cataract Extraction
		                        			;
		                        		
		                        			Collagen
		                        			;
		                        		
		                        			Conjunctiva
		                        			;
		                        		
		                        			Cosmetics
		                        			;
		                        		
		                        			Eye
		                        			;
		                        		
		                        			Eyelids
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Forehead
		                        			;
		                        		
		                        			Foreign Bodies
		                        			;
		                        		
		                        			Foreign-Body Migration
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Lens, Crystalline
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Nose
		                        			;
		                        		
		                        			Sensation
		                        			;
		                        		
		                        			Visual Acuity
		                        			
		                        		
		                        	
8.A Case of Paclitaxel-induced Maculopathy Treated with Methazolamide.
Korean Journal of Ophthalmology 2012;26(5):394-397
		                        		
		                        			
		                        			A 54-year-old female patient who had been undergoing anti-cancer chemotherapy and radiotherapy for seven years after surgery for left breast cancer visited our clinic for visual disturbance in the right eye at nine months after paclitaxel administration. The best-corrected visual acuity was 0.5 in the right eye and 1.0 in the left eye. The patient was diagnosed with maculopathy due to paclitaxel administration based on the finding of cystoid macular edema in the right eye on fundus examination and optical coherence tomography; however, no leakage was detected on fluorescein angiography. Thus, drug replacement was planned. On the other hand, no abnormal finding was observed in the left eye. However, as the anti-cancer effect of paclitaxel is significant, replacing paclitaxel with another agent was not warranted; therefore, maintenance therapy with methazolamide was performed before and after administering the anti-cancer agent. Aggravation of cystoid macular edema was prevented, and vision improvement was achieved by oral maintenance therapy with methazolamide. In addition, the same fundus findings as shown in the right eye were detected in the left eye at 16 months after paclitaxel administration. After administering methazolamide, macular thickness was reduced, and vision was improved in the left eye. Paclitaxel administration was discontinued due to cutaneous metastasis from the breast cancer, and another anti-cancer agent was then administered. No subsequent cystoid macular edema has occurred.
		                        		
		                        		
		                        		
		                        			Antineoplastic Agents, Phytogenic/*adverse effects
		                        			;
		                        		
		                        			Breast Neoplasms/drug therapy
		                        			;
		                        		
		                        			Diuretics/*therapeutic use
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Macular Edema/*chemically induced/*drug therapy
		                        			;
		                        		
		                        			Methazolamide/*therapeutic use
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Paclitaxel/*adverse effects
		                        			;
		                        		
		                        			Visual Acuity
		                        			
		                        		
		                        	
9.Resolution of Macular Edema after Systemic Treatment with Furosemide.
Korean Journal of Ophthalmology 2012;26(4):312-315
		                        		
		                        			
		                        			We report two cases of macular edema treated with the oral administration of furosemide. The first case presented here was a 78-year-old male patient with visual disturbance of the left eye. He had been taking an oral agent for diabetes and had chronic renal failure for 7 years. From 10 days prior to the visit, he had visual disturbance of the left eye accompanied by systemic edema. There were no specific findings in the anterior segment, but sub-retinal fluid was observed in the left fundus. Macular edema was observed on fluorescein angiography and optical coherence tomography; therefore, the oral administration of furosemide was initiated. After seven days, the sub-retinal fluid disappeared. The second case was a 43-year-old female patient with visual disturbance of the left eye who had been taking hypoglycemic agents for diabetes for 13 years. There were no specific findings in the anterior segment, but flame-shaped retinal hemorrhages were scattered over both posterior poles, neovascularization was observed in the left eye, and, of particular note, sub-retinal fluid was detected in the macula of the left eye. Macular edema was also observed on fluorescein angiography and optical coherence tomography, and oral administration of furosemide was initiated. After 3 weeks, the macular edema had significantly decreased.
		                        		
		                        		
		                        		
		                        			Administration, Oral
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Diabetes Complications/diagnosis/*drug therapy
		                        			;
		                        		
		                        			Diuretics/administration & dosage/*therapeutic use
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Fluorescein Angiography
		                        			;
		                        		
		                        			Furosemide/administration & dosage/*therapeutic use
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Macular Edema/diagnosis/*drug therapy
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Tomography, Optical Coherence
		                        			
		                        		
		                        	
10.Spectral-Domain Optical Coherence Tomography Findings in Acute Central Retinal Artery Occlusion.
Jae Yeong PARK ; Nam Kyun KOO ; Won Moon SEO
Journal of the Korean Ophthalmological Society 2012;53(8):1099-1103
		                        		
		                        			
		                        			PURPOSE: To evaluate spectral-domain optical coherence tomography (SD-OCT) images of acute central retinal artery occlusion (CRAO). METHODS: Six eyes of 6 patients who were diagnosed with acute CRAO were enrolled in the present study. The main SD-OCT measurements included macular thickness in the macular cube map and retinal thickness in the 5-line raster map. RESULTS: In acute CRAO, macular thickness increased more than that in the normal fellow eye in all cases. SD-OCT images demonstrated increased reflectivity and thickness in the inner retinal layer, especially in the nerve fiber layer and ganglion cell layer. However, in the outer retinal layer, SD-OCT images disclosed decreased reflectivity and increased thickness. The central subfield thickness area image showed normal reflectivity and thickness. The horizontal cross-sectional image showed relatively the same edema ratio between the inner retinal layer and outer retinal layer thickness. There was no cystoid or serous foveal detachment-type edema. CONCLUSIONS: SD-OCT images of CRAO showed increased outer retinal layer thickness and decreased reflectance as well as increased inner retinal layer thickness and reflectance. However, inner segment and outer segment junctions of the photoreceptor and retinal pigment epithelial signal were intact.
		                        		
		                        		
		                        		
		                        			Edema
		                        			;
		                        		
		                        			Eye
		                        			;
		                        		
		                        			Ganglion Cysts
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Nerve Fibers
		                        			;
		                        		
		                        			Retinal Artery
		                        			;
		                        		
		                        			Retinal Artery Occlusion
		                        			;
		                        		
		                        			Retinaldehyde
		                        			;
		                        		
		                        			Tomography, Optical Coherence
		                        			
		                        		
		                        	
            
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