1.Small Vessel Transient Ischemic Attack and Lacunar Infarction Detected with Perfusion-Weighted MRI.
Journal of Stroke 2017;19(3):365-366
No abstract available.
Ischemic Attack, Transient*
;
Magnetic Resonance Imaging*
;
Stroke, Lacunar*
2.Spontaneous Cerebral Air Embolism.
Rae Young KIM ; Sang Myung CHEON ; Hyun Wook NAH
Journal of the Korean Neurological Association 2017;35(4):268-269
No abstract available.
Embolism, Air*
3.Isolated Hypoglossal Nerve Palsy Caused by Dural Arteriovenous Fistula.
Seung Min KIM ; Sang Won HA ; Hyun Wook NAH
Journal of the Korean Neurological Association 2016;34(5):417-418
No abstract available.
Central Nervous System Vascular Malformations*
;
Hypoglossal Nerve Diseases*
;
Hypoglossal Nerve*
4.Digital Therapeutics: Emerging New Therapy for Neurologic Deficits after Stroke
Mi Joo CHOI ; Hana KIM ; Hyun Wook NAH ; Dong Wha KANG
Journal of Stroke 2019;21(3):242-258
Digital therapeutics is an evidence-based intervention using high-quality software, with the sole purpose of treatment. As many healthcare systems are encountering high demands of quality outcomes, the need for digital therapeutics is gradually increasing in the clinical field. We conducted review of the implications of digital therapeutics in the treatment of neurological deficits for stroke patients. The implications of digital therapeutics have been discussed in four domains: cognition, speech and aphasia, motor, and vision. It was evident that different forms of digital therapeutics such as online platforms, virtual reality trainings, and iPad applications have been investigated in many trials to test its feasibility in clinical use. Although digital therapeutics may deliver high-quality solutions to healthcare services, the medicalization of digital therapeutics is accompanied with many limitations. Clinically validated digital therapeutics should be developed to prove its efficacy in stroke rehabilitation.
Aphasia
;
Aphasia, Broca
;
Cognition
;
Delivery of Health Care
;
Hemianopsia
;
Hemiplegia
;
Humans
;
Medicalization
;
Neurologic Manifestations
;
Rehabilitation
;
Stroke
5.Efficacy of Combining Proximal Balloon Guiding Catheter and Distal Access Catheter in Thrombectomy with Stent Retriever for Anterior Circulation Ischemic Stroke
Sang Hwa KIM ; Jae Hyung CHOI ; Myung Jin KANG ; Jae Kwan CHA ; Dae Hyun KIM ; Hyun Wook NAH ; Hyun Seok PARK ; Sang Hyun KIM ; Jae Taeck HUH
Journal of Korean Neurosurgical Society 2019;62(4):405-413
OBJECTIVE: We evaluated efficacy of combining proximal balloon guiding catheter (antegrade flow arrest) and distal access catheter (aspiration at the site of occlusion) in thrombectomy for anterior circulation ischemic stroke.METHODS: We retrospectively analyzed 116 patients who underwent mechanical thrombectomy with stent retriever. The patients were divided by the techniques adopted, the combined technique (proximal balloon guiding catheter and large bore distal access catheter) group (n=57, 49.1%) and the conventional (guiding catheter with stent retriever) technique group (n=59, 50.9%). We evaluated baseline characteristics (epidemiologic data, clinical and imaging characteristics) and procedure details (the number of retrieval attempts, procedure time), as well as angiographic (thrombolysis in cerebral infarction (TICI) score, distal thrombus migration) and clinical outcome (National Institutes of Health Stroke Scale at discharge, modified Rankin Scale [mRS] at 3 months) of them.RESULTS: The number of retrieval attempts was lower (p=0.002) and the first-pass successful reperfusion rate was higher (56.1% vs. 28.8%; p=0.003) in the combined technique group. And the rate of final result of TICI score 3 was higher (68.4% vs. 28.8%; p<0.01) and distal thrombus migration rate was also lower (15.8% vs. 40.7%; p=0.021) in the combined technique group. Early strong neurologic improvement (improvement of National Institutes of Health Stroke Scale ≥11 or National Institutes of Health Stroke Scale ≤1 at discharge) rate (57.9% vs. 36.2%; p=0.02) and favorable clinical outcome (mRS at 3 months ≤2) rate (59.6% vs. 33.9%; p=0.005) were also better in the combined technique group.CONCLUSION: The combined technique needs lesser attempts, decreases distal migration, increases TICI 3 reperfusion and achieves better clinical outcomes.
Academies and Institutes
;
Brain Ischemia
;
Catheters
;
Cerebral Infarction
;
Humans
;
National Institutes of Health (U.S.)
;
Reperfusion
;
Retrospective Studies
;
Stents
;
Stroke
;
Thrombectomy
;
Thrombosis
6.A Case of Fabry Cardiomyopathy.
Jong Chun NAH ; Woo Shik KIM ; Wook Hyun CHO ; Suk Koo CHOI ; Han Wook YOO ; Toshihiro TAKENAKA ; Chuwa TEI
Korean Circulation Journal 2009;39(8):335-339
In the absence of hypertension, hypertrophic cardiomyopathy is the most common cause of left ventricular hypertrophy (LVH). However, it has been reported that up to 3% of males with unexplained LVH have Fabry disease, an X-linked disorder of glycophospholipid metabolism that is due to a deficiency in the lysosomal enzyme alpha-galactosidase A (alpha-Gal A). A 44-year-old man was admitted to our hospital with palpitations. He had a history of chronic renal failure diagnosed at age 33 followed by kidney transplantation performed at our institution 2 years later, as well as long-standing hypohidrosis. His medications included prednisolone (5 mg daily), mycophenolate mofetil (1,000 mg, bid), and cyclosporine (150 mg, bid). On hospital day two, an echocardiogram demonstrated increased left ventricular wall thickness (septal wall thickness of 28 mm, posterior wall thickness of 20 mm). Diastolic dysfunction was noted on transmitral flow patterns and tissue Doppler imaging. The patient was found to have low plasma alpha-Gal A activity. A previously reported H46R missense mutation was detected in his alpha-Gal A gene and the patient was subsequently diagnosed with Fabry disease.
Adult
;
alpha-Galactosidase
;
Cardiomyopathies
;
Cardiomyopathy, Hypertrophic
;
Cyclosporine
;
Fabry Disease
;
Genes, vif
;
Humans
;
Hypertension
;
Hypertrophy, Left Ventricular
;
Hypohidrosis
;
Kidney Failure, Chronic
;
Kidney Transplantation
;
Male
;
Mutation, Missense
;
Mycophenolic Acid
;
Plasma
;
Prednisolone
7.Transportation Time is Significantly Decreased in Acute Ischemic Stroke Patients Under Drip-and-Ship Paradigm for Thrombolysis
Jeong Yeon KIM ; Jae Kwan CHA ; Dae Hyun KIM ; Hyun Wook NAH ; Jin Heon JEONG
Journal of Neurocritical Care 2018;11(2):86-92
BACKGROUND: A delay of transfer for patients with acute stroke needing emergent revascularization is a huge hurdle for efficacy of revascularization. The objective of this study was to investigate changes of transportation time calculated by image to door (ITD) time (from checking brain images at first contact hospital to arriving at our emergency center) before and after 2015. METHODS: This study was performed in a retrospective manner from 2013 into 2017. Acute ischemic stroke (AIS) patients having intravenous thrombolysis and/or mechanical thrombectomy during the observation period were enrolled. Among them, those who had revascularization under ‘Drip-and-Ship’ or ‘Ship-and-Drip’ paradigm were selected. RESULTS: During the observation period, 225 patients were treated under ‘Drip-and-Ship’ or ‘Ship-and-Drip’ paradigm. Twenty-three were excluded due the lack of detailed data. Among 202 patients, 73 and 129 were treated under Drip-and-Ship and Ship-and-Drip paradigms, respectively. In 2013, 35 patients from 18 hospitals (median distance, 25 km) were transferred to our regional stroke center and their median ITD time was 116 minutes. It was gradually decreased after 2015. In 2017, ITD time was significantly (P < 0.01) shortened to 85 minutes without significant changes in transfer distance. The median onset to puncture time was also significantly (P=0.03) decreased from 365 minutes in 2013 to 270 minutes in 2017. CONCLUSION: Our results implicate that many hospitals in our stroke region might have recognized the importance of rapid transportation for AIS after 2015.
Brain
;
Emergencies
;
Humans
;
Punctures
;
Retrospective Studies
;
Stroke
;
Thrombectomy
;
Transportation
8.Elevation of heart-femoral pulse wave velocity by short-term low sodium diet followed by high sodium diet in hypertensive patients with sodium sensitivity.
Moo Yong RHEE ; Ji Hyun KIM ; Sang Hoon NA ; Jin Wook CHUNG ; Jun Ho BAE ; Deuk Young NAH ; Namyi GU ; Hae Young KIM
Nutrition Research and Practice 2016;10(3):288-293
BACKGROUND/OBJECTIVES: We compared changes in heart-femoral pulse wave velocity (hfPWV) in response to low sodium and high sodium diet between individuals with sodium sensitivity (SS) and resistance (SR) to evaluate the influence of sodium intake on arterial stiffness. SUBJECTS/METHODS: Thirty-one hypertensive and 70 normotensive individuals were given 7 days of low sodium dietary approach to stop hypertension (DASH) diet (LSD, 100 mmol NaCl/day) followed by 7 days of high sodium DASH diet (HSD, 300 mmol NaCl/day) during 2 weeks of hospitalization. The hfPWV was measured and compared after the LSD and HSD. RESULTS: The hfPWV was significantly elevated from LSD to HSD in individuals with SS (P = 0.001) independently of changes in mean arterial pressure (P = 0.037). Conversely, there was no significant elevation of hfPWV from LSD to HSD in individuals with SR. The percent change in hfPWV from the LSD to the HSD in individuals with SS was higher than that in individuals with SR. Subgroup analysis revealed that individuals with both SS and hypertension showed significant elevation of hfPWV from LSD to HSD upon adjusted analysis using changes of the means arterial pressure (P = 0.040). However, there was no significant elevation of hfPWV in individuals with SS and normotension. CONCLUSION: High sodium intake elevated hfPWV in hypertensive individuals with SS, suggesting that high sodium intake increases aortic stiffness, and may contribute to enhanced cardiovascular risk in hypertensive individuals with SS.
Arterial Pressure
;
Diet*
;
Hospitalization
;
Humans
;
Hypertension
;
Lysergic Acid Diethylamide
;
Pulse Wave Analysis*
;
Sodium*
;
Sodium, Dietary
;
Vascular Stiffness
9.Elevation of heart-femoral pulse wave velocity by short-term low sodium diet followed by high sodium diet in hypertensive patients with sodium sensitivity.
Moo Yong RHEE ; Ji Hyun KIM ; Sang Hoon NA ; Jin Wook CHUNG ; Jun Ho BAE ; Deuk Young NAH ; Namyi GU ; Hae Young KIM
Nutrition Research and Practice 2016;10(3):288-293
BACKGROUND/OBJECTIVES: We compared changes in heart-femoral pulse wave velocity (hfPWV) in response to low sodium and high sodium diet between individuals with sodium sensitivity (SS) and resistance (SR) to evaluate the influence of sodium intake on arterial stiffness. SUBJECTS/METHODS: Thirty-one hypertensive and 70 normotensive individuals were given 7 days of low sodium dietary approach to stop hypertension (DASH) diet (LSD, 100 mmol NaCl/day) followed by 7 days of high sodium DASH diet (HSD, 300 mmol NaCl/day) during 2 weeks of hospitalization. The hfPWV was measured and compared after the LSD and HSD. RESULTS: The hfPWV was significantly elevated from LSD to HSD in individuals with SS (P = 0.001) independently of changes in mean arterial pressure (P = 0.037). Conversely, there was no significant elevation of hfPWV from LSD to HSD in individuals with SR. The percent change in hfPWV from the LSD to the HSD in individuals with SS was higher than that in individuals with SR. Subgroup analysis revealed that individuals with both SS and hypertension showed significant elevation of hfPWV from LSD to HSD upon adjusted analysis using changes of the means arterial pressure (P = 0.040). However, there was no significant elevation of hfPWV in individuals with SS and normotension. CONCLUSION: High sodium intake elevated hfPWV in hypertensive individuals with SS, suggesting that high sodium intake increases aortic stiffness, and may contribute to enhanced cardiovascular risk in hypertensive individuals with SS.
Arterial Pressure
;
Diet*
;
Hospitalization
;
Humans
;
Hypertension
;
Lysergic Acid Diethylamide
;
Pulse Wave Analysis*
;
Sodium*
;
Sodium, Dietary
;
Vascular Stiffness
10.A Case of Q Fever that may Mimic Systemic Lupus Erythematosus.
Han Min LEE ; Sang Il MO ; Hyun Wook CHO ; Su Jin LEE ; Baek Gyu JUN ; Ki Won KIM ; Jae Yun KIM ; Young Il KIM ; Seong Su NAH
Journal of Rheumatic Diseases 2013;20(1):40-43
Q fever is a zoonosis caused by a Coxiella burnetii. Q fever is clinically variable, presenting as asymptomatic infection, pneumonia, hepatitis and endocarditis. Treatment of acute Q fever with doxycycline is usually successful. Autoantibodies, such as anti-mitochondrial antibodies, smooth muscle antibodies (SMA), anti-cardiolipin and lupus anticoagulant, often rise in acute Q fever infection. Some cases may occasionally meet the criteria for autoimmune disease like systemic lupus erythematosus. We report a first case of Q fever that may mimic systemic lupus erythematosus in Korea.
Antibodies
;
Asymptomatic Infections
;
Autoantibodies
;
Autoimmune Diseases
;
Coxiella burnetii
;
Doxycycline
;
Endocarditis
;
Hepatitis
;
Hydrazines
;
Korea
;
Lupus Coagulation Inhibitor
;
Lupus Erythematosus, Systemic
;
Muscle, Smooth
;
Pneumonia
;
Q Fever