160 research outputs found
Supplemental material for DWI-pc-ASPECT score in basilar artery occlusion: is 6 points or less always indicative of a bad outcome?
No full textSupplemental Material for DWI-pc-ASPECT score in basilar artery occlusion: is 6 points or less always indicative of a bad outcome? by Joong-Goo Kim, Dongwhane Lee, Jay Chol Choi, Yunsun Song, Deok Hee Lee and Dae Chul Suh in Interventional Neuroradiology</p
sj-docx-1-wso-10.1177_17474930231158211 – Supplemental material for Optimal use of antithrombotic agents in ischemic stroke with atrial fibrillation and large artery atherosclerosis
No full textSupplemental material, sj-docx-1-wso-10.1177_17474930231158211 for Optimal use of antithrombotic agents in ischemic stroke with atrial fibrillation and large artery atherosclerosis by Tae Jung Kim, Ji Sung Lee, Jae Sun Yoon, Mi Sun Oh, Ji-Woo Kim, Soo-Hyun Park, Keun-Hwa Jung, Hyun Young Kim, Jee-Hyun Kwon, Hye-Yeon Choi, Hahn Young Kim, Kyung Yoon Eah, Sang Won Han, Hyung-Geun Oh, Young-Jae Kim, Byoung-Soo Shin, Chang Hun Kim, Chi Kyung Kim, Jong-Moo Park, Kyung Bok Lee, Tai Hwan Park, Jun Lee, Man-Seok Park, Jay Chol Choi, Chulho Kim, Dong-Ick Shin, Soo Joo Lee, Dong-Eog Kim, Jae-Kwan Cha, Eung-Gyu Kim, Kyung-Ho Yu, Keun-Sik Hong, Young-Seok Lee, Ju-Hun Lee, Sung Il Sohn, Hee-Joon Bae, Young-Bae Lee, Jun Hong Lee, Joung-Ho Rha, Byung-Chul Lee, Dae-Il Chang, Sang-Bae Ko and Byung-Woo Yoon in International Journal of Stroke</p
Conus Medullaris Syndrome following Radionuclide Cisternography
No full textRadionuclide cisternography is generally considered to be a safe procedure without significant neurological complications. However, in this report we present a patient who developed conus medullaris syndrome following radionuclide cisternography. A 46-year-old woman underwent lumbar puncture followed by radionuclide cisternography with the diagnosis of hydrocephalus. After the cisternography, she developed voiding difficulty with perineal sensory loss. Lumbar MRI revealed a high signal intensity lesion on T2-weighted images at the level of conus medullaris. Considering its clinical course and MRI findings, a spinal cord infarction is highly suggested as a cause of the conus medullaris lesion in this patient
sj-docx-1-wso-10.1177_17474930231168742 – Supplemental material for Dual antiplatelet Use for extended period taRgeted to AcuTe ischemic stroke with presumed atherosclerotic OrigiN (DURATION) trial: Rationale and design
No full textSupplemental material, sj-docx-1-wso-10.1177_17474930231168742 for Dual antiplatelet Use for extended period taRgeted to AcuTe ischemic stroke with presumed atherosclerotic OrigiN (DURATION) trial: Rationale and design by Joon-Tae Kim, Jihoon Kang, Beom Joon Kim, Jun Yup Kim, Moon-Ku Han, Ki-Hyun Cho, Man-Seok Park, Kang-Ho Choi, Jong-Moo Park, Kyusik Kang, Yong Soo Kim, Soo Joo Lee, Jae Guk Kim, Jae-Kwan Cha, Dae-Hyun Kim, Tai Hwan Park, Sang-Soon Park, Jin Kyo Choi, Kyungbok Lee, Kwang-Yeol Park, Hae-Bong Jeong, Jun Lee, Doo Hyuk Kwon, Yong-Jin Cho, Keun-Sik Hong, Hong-Kyun Park, Byung-Chul Lee, Kyung-Ho Yu, Mi Sun Oh, Minwoo Lee, Dong-Eog Kim, Dong-Seok Gwak, Jay Chol Choi, Joong-Goo Kim, Chul-Hoo Kang, Jee-Hyun Kwon, Wook-Joo Kim, Dong-Ick Shin, Kyu Sun Yum, Sung Il Sohn, Jeong-Ho Hong, Hyungjong Park, Chulho Kim, Sang-Hwa Lee, Juneyoung Lee, Philip B Gorelick, Bo Norrving and Hee-Joon Bae in International Journal of Stroke</p
Regional Availability of Mechanical Embolectomy for Acute Ischemic Stroke in California, 2009 to 2010
No full textBackground and purposeWe sought to assess the geographic proximity of patients with stroke in California to centers that performed specific threshold volumes of mechanical embolectomy procedures each year.MethodsWe identified all patients who were hospitalized for acute ischemic stroke at all nonfederal acute care hospitals in California from 2009 to 2010, and all hospitals that performed any mechanical embolectomy procedures by case volume during the same period, using nonpublic data from the Office of Statewide Health Planning and Development. We computed geographic service areas around each hospital on the basis of prespecified ground transport distance thresholds. We then calculated the proportion of hospitalized patients with stroke who lived within service areas for centers that performed a low volume and high volume of mechanical embolectomy procedures each year.ResultsDuring the 2-year study period, 15% (53/360) of hospitals performed at least 1 mechanical embolectomy for acute stroke, but only 19% (10/53) performed >10 cases per year. Most hospitalized patients with stroke (94%) lived within a 2-hour transport time (65 miles) to a hospital that performed ≥1 procedure during the 2-year period. Approximately 93% of the patients with stroke who received mechanical embolectomy lived within 20 miles from an embolectomy-capable hospital compared with 7% of those who lived >20 miles.ConclusionsIn California, most patients with stroke lived within reasonable ground transport distances from centers that performed ≥1 mechanical embolectomy in a 2-year period. The probability of receiving mechanical embolectomy for acute ischemic stroke was associated with living in close geographic proximity to these hospitals
Determination of Blood NOTCH3 Extracellular Domain and Jagged-1 Levels in Healthy Subjects
No full textCerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is the most common genetic disorder among those responsible for hereditary strokes, and it is caused by a mutation in the NOTCH3 gene on chromosome 19. Blood biomarkers related to the Notch signaling pathway have not been investigated extensively in CADASIL. In this study, we measured the serum and plasma levels of NOTCH3 extracellular domain (N3ECD) and its ligand, Jagged-1, in 279 healthy subjects. The levels of N3ECD and Jagged-1 showed significant correlations in both serum (p < 0.0001, r = 0.2681) and plasma (p < 0.0001, r = 0.4065). The N3ECD levels were significantly higher in the serum than in plasma and tend to increase with age. In contrast, there was no significant difference between the serum and plasma levels of Jagged-1 levels. To summarize, we were able to measure N3ECD and Jagged-1 protein levels in healthy human serum and plasma. Taken together, our findings provide the basis for further studies investigating the clinical use of blood N3ECD and Jagged-1 levels for CADASIL and other Notch signaling-related diseases
The association between wind-related variables and stroke symptom onset: A case-crossover study on Jeju Island
No full textBackground: Although several studies have investigated the effects of ambient temperature on the risk of stroke, few studies have examined the relationship between other meteorological conditions and stroke. Therefore, the aim of this study was to analyze the association between wind-related variables and stroke symptoms onset. Methods: Data regarding the onset of stroke symptoms occurring between January 1, 2006, and December 31, 2007 on Jeju Island were collected from the Jeju National University Hospital stroke registry. A fixed-strata case-crossover analysis based on time of onset and adjusted for ambient temperature, relative humidity, air pressure, and pollutants was used to analyze the effects of wind speed, the daily wind speed range (DWR), and the wind chill index on stroke symptom onset using varied lag terms. Models examining the modification effects by age, sex, smoking status, season, and type of stroke were also analyzed. Results: A total of 409 stroke events (381 ischemic and 28 hemorrhagic) were registered between 2006 and 2007. The odds ratios (ORs) for wind speed, DWR, and wind chill among the total sample at lag 0-8 were 1.18 (95% confidence interval (CI): 1.06-1.31), 1.08 (95% CI: 1.02-1.14), and 1.22 (95% CI: 1.07-139) respectively. The ORs for wind speed, DWR, and wind chill for ischemic stroke patients were slightly greater than for patients in the total sample (OR=1.20, 95% CI: 1.08-1.34; OR=1.09, 95% CI: 1.03-1.15; and OR=1.22, 95% CI: 1.07-1.39, respectively). Statistically significant season-specific effects were found for spring and winter, and various delayed effects were observed. In addition, age, sex, and smoking status modified the effect size of wind speed, DWR, and wind chill. Conclusions: Our analyses showed that the risk of stroke symptoms onset was associated with wind speed, DWR, and wind chill on Jeju Island. (C) 2016 Elsevier Inc. All rights reserved.N
Impact of Neuroimaging Patterns for the Detection of Atrial Fibrillation by Implantable Loop Recorders in Patients With Embolic Stroke of Undetermined Source
No full textObjectivesAtrial fibrillation (AF) is a well-known etiology of embolic stroke of undetermined source (ESUS), although the optimal detection strategy of AF was not been fully evaluated yet. We assessed AF detection rate by implantable loop recorder (ILR) in patients with ESUS and compared the clinical characteristics and neuroimaging patterns between the patients with AF and AF-free patients.MethodsWe reviewed clinical characteristics and neuroimaging patterns of consecutive patients with who were admitted to our comprehensive stroke center for ESUS and underwent ILR insertion between August 1, 2019, and January 31, 202. The inclusion criteria were (1) 18 years of age or older; (2) classified as having cryptogenic stroke extracted from the group with undetermined stroke according to ESUS International Working Group; and (3) underwent ILR insertion during or after admission due to index ischemic events. Ischemic stroke pattern was classified as (1) tiny-scattered infarction, (2) whole-territorial infarction, (3) lobar infarction and (4) multiple-territorial infarction. Interrogations of data retrieved from the ILR were performed by cardiologists in every month after the implantation.ResultsIn this study, 41 ESUS patients who received an ILR implantation were enrolled (mean age, 64 years; male sex, 65.9%). The rate of AF detection at 6 months was 34% (14 patients), and the mean time from ILR insertion to AF detection was 52.5 days [interquartile range (IQR), 45.0–69.5]. The median initial NIH stroke scale scores were significantly greater in patients with AF than those without AF (6.5 vs. 3.0, p = 0.019). Whole-territorial infarction pattern was significantly more frequent in patients with AF than in those without AF (64.3% vs.11.1%, p = 0.002).ConclusionsHigher covert AF detection rates within the ESUS patients were most often associated with higher NIHSS and whole-territorial infarction patterns on brain imaging
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