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  • 1
    Online Resource
    Online Resource
    Leptomeningeal Collaterals and Infarct Progression in Patients With Acute Large‐Vessel Occlusion and Low NIHSS
    Ovid Technologies (Wolters Kluwer Health) ; 2023
    In:  Stroke: Vascular and Interventional Neurology Vol. 3, No. 5 ( 2023-09)
    Details
    In: Stroke: Vascular and Interventional Neurology, Ovid Technologies (Wolters Kluwer Health), Vol. 3, No. 5 ( 2023-09)
    Abstract: Approximately 10% of patients with acute ischemic stroke with large‐vessel occlusion (LVO) have mild neurological deficits. Although leptomeningeal collaterals (LMCs) are the major determinant of clinical outcomes for patients with acute ischemic stroke with LVO, the contribution of baseline LMC status to subsequent infarct progression in patients with mild stroke with LVO is poorly defined. Methods This observational study included patients with acute anterior circulation LVO and mild stroke symptoms (National Institutes of Health Stroke Scale 〈 6) from a prospectively collected, multicenter, national stroke registry. The Alberta Stroke Program Early Computed Tomography Score was quantified on the initial and follow‐up images. An infarct progression, defined as any Alberta Stroke Program Early Computed Tomography Score decrease between the initial versus follow‐up scans, was categorized as either 0/1/2+. The LMCs on the baseline images were graded as good, fair, or poor. Results Of the 623 included patients (mean age, 67.6±13.4 years; 380 [61.0%] men; 186 [29.9%] with reperfusion treatment), the baseline LMC was graded as good in 331 (53.1%), fair in 219 (35.2%), and poor in 73 (11.7%). The Alberta Stroke Program Early Computed Tomography Score decrement was noted as 0 in 288 (46%) patients, 1 in 154 (24%), and 2+ in 181 (29%). A poor LMC was associated with an infarct progression (adjusted odds ratio, 2.05 [95% CI, 1.22–3.47]). Conclusions Poor collateral blood flow was associated with infarct progression in patients with acute ischemic stroke with LVO and mild symptoms. In this selective population, early assessment of collateral blood flow status can help in early detection of patients susceptible to infarct progression.
    Type of Medium: Online Resource
    ISSN: 2694-5746
    URL: Article
    DOI: 10.1161/SVIN.122.000819
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2023
    detail.hit.zdb_id: 3144224-9
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  • 2
    Online Resource
    Online Resource
    Abstract WP98: Utilization Of Perfusion Imaging For Acute Ischemic Stroke: Secular Trends And Effects On Outcomes Of Endovascular Treatment
    Ovid Technologies (Wolters Kluwer Health) ; 2023
    In:  Stroke Vol. 54, No. Suppl_1 ( 2023-02)
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 54, No. Suppl_1 ( 2023-02)
    Abstract: Introduction: Perfusion imaging (PI) could guide decision-making for endovascular treatment (EVT) of acute ischemic stroke (AIS). However, PI was underused even in the US before the pivotal EVT trials proved its usefulness in 2018. This study aimed to describe the secular trends of PI utilization and investigate the effectiveness of PI-based EVT in real-world practice. Methods: Using a prospective multicenter (n=17) stroke registry in South Korea, we identified patients with AIS who presented within 24 hours from onset between 2011 and 2021. The study period was divided into 3 epochs: 2011-2014, 2015-2017, and 2018-2021. The study population was divided into the early (arrival within 6 hours) and late window (6-24 hours) groups. Results: A total of 51,650 patients (15,654 patients in 2011-2014, 14,432 patients in 2015-2017, and 21,564 patients in 2018-2021) were analyzed. Utilization of PI decreased in the overall population and early window group ( P trend 〈 0.001); 43.3% and 54.1% in 2011-2014, 40.1% and 44.1% in 2015-2017, and 38.4% and 40.2% in 2018-2021, respectively; but increased in the late window group ( P trend 〈 0.001); 31.3% in 2011-2014, 35.7% in 2015-2017, and 36.5% in 2018-2021. Of 10,872 patients with anterior large-vessel occlusion (aLVO), the EVT rate was not different between patients with and without PI (48.7% vs. 46.6%, P =0.08) in the early window but higher in those with PI than without PI in the late window (29.8% vs. 18.7%, P 〈 0.001). The EVT outcome (3-month mRS 0-2) was not different between patients with and without PI in the early window (44.1% vs. 41.8%, P =0.21) and late window (38.4% vs. 39.2%, P =0.81). Propensity score analysis and instrumental variable analysis with PI rate per center as an instrument will be performed to adjust imbalances between patients with and without PI. Conclusion: Between 2011 and 2021 in South Korea, PI utilization has decreased in patients arriving within 6 hours from onset but has increased in those arriving between 6 and 24 hours. Among patients with aLVO, PI likely increased the EVT rate in the late window but did not in the early window. PI utilization did not seem to affect the EVT outcomes, but in-depth analysis is required.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/str.54.suppl_1.WP98
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2023
    detail.hit.zdb_id: 1467823-8
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  • 3
    Online Resource
    Online Resource
    Abstract WMP97: Symptomatic Steno-occlusion Of Major Cerebral Arteries And Stroke Recurrence In Acute Ischemic Stroke Patients With Atrial Fibrillation
    Ovid Technologies (Wolters Kluwer Health) ; 2023
    In:  Stroke Vol. 54, No. Suppl_1 ( 2023-02)
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 54, No. Suppl_1 ( 2023-02)
    Abstract: Introduction: There is lack of knowledge on whether symptomatic steno-occlusion (SYSO), common in acute ischemic stroke (AIS) patients with atrial fibrillation (AF), could increase the long-term risk of stroke recurrence in these patients. Methods: From a prospective cohort of patients with AIS and AF enrolled in 14 centers between Oct 2017 and Dec 2018, we identified patients who underwent MR angiography during hospitalization and completed 3-year follow-up including death during follow-up. SYSO was defined as (1) ≥ 50% stenosis or occlusion of cerebral arteries relevant to acute infarction or (2) any residual stenosis after endovascular treatment. Using cause-specific hazard models with non-stroke death as a competing risk, the risk of any recurrent stroke and recurrent ischemic stroke was estimated according to SYSO, respectively. Results: A total of 889 patients (mean age, 74.4 years; men, 54.6 %; median NIHSS, 6) were analyzed for this study. During the median 1096 days of follow-up, 152 any recurrent strokes, 142 recurrent ischemic strokes, and 208 deaths were observed. Patients with SYSO, compared to those without, were more likely to be older, be female, have hypertension, diabetes and history of stroke/TIA, and be on antiplatelets at discharge and were less likely to be on anticoagulants at discharge ( p 〈 .05). The cumulative incidence of recurrent stroke in patients with and without SYSO was 25.2% and 8.3% at 1 month, 33.1% and 9.9% at 1 year, and 41.8% and 13.1% at 3 years, respectively ( p 〈 .001). With adjusting age, sex, hypertension, diabetes, history of stroke/TIA, discharge antiplatelets, and discharge anticoagulants, SYSO increased the risk of any stroke recurrence (adjusted hazard ratio [95% confidence interval]; 3.02 [2.18-4.20] ; p 〈 .001) and ischemic stroke recurrence (3.20 [2.28-4.51]; p 〈 .001). Conclusions: SYSO in AIS patients with AF substantially increased the risk of recurrent stroke by a 3-fold or more. Accordingly, SYSO should be considered in stratifying the risk of recurrence in AIS patients with AF.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/str.54.suppl_1.WMP97
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2023
    detail.hit.zdb_id: 1467823-8
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  • 4
    Online Resource
    Online Resource
    David G. Sherman Lecture Award: 15-Year Experience of the Nationwide Multicenter Stroke Registry in Korea
    Ovid Technologies (Wolters Kluwer Health) ; 2022
    In:  Stroke Vol. 53, No. 9 ( 2022-09), p. 2976-2987
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 53, No. 9 ( 2022-09), p. 2976-2987
    Abstract: The expected growth of stroke burden in Korea in early 2000s led to the initiation of a government-funded clinical research project with the goal of development and implementation of national stroke guidelines. The CRCS-K (Clinical Research Collaboration for Stroke in Korea) began as a part of this project. For stroke epidemiology and quality of care research, the CRCS-K developed a multicenter, prospective, stroke registry and began collection of data in 2008. Now, about 100 000 cases have been registered at 17 university hospitals or regional stroke centers and about 200 articles have been published based on the registry experience. The analysis of the 10-year secular trends showed overall improvement of stroke care and outcomes and areas for improvement. This large-scale, high-quality dataset provides opportunities to explore and compare treatment disparities using the comparative effectiveness research methods, design and conduct a registry-based randomized clinical trial, connect the registry data with other data sources including the national claims data and neuroimaging or genetic data, and collaborate with other international researchers. An international stroke registry consortium may be a viable future direction.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/STROKEAHA.122.039212
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2022
    detail.hit.zdb_id: 1467823-8
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  • 5
    Online Resource
    Online Resource
    Comparison of the Efficacy and Safety of Tacrolimus and Low-Dose Corticosteroid with High-Dose Corticosteroid for Minimal Change Nephrotic Syndrome in Adults
    Ovid Technologies (Wolters Kluwer Health) ; 2021
    In:  Journal of the American Society of Nephrology Vol. 32, No. 1 ( 2021-1), p. 199-210
    Details
    In: Journal of the American Society of Nephrology, Ovid Technologies (Wolters Kluwer Health), Vol. 32, No. 1 ( 2021-1), p. 199-210
    Abstract: Steroid resistance, relapse, and side effects are common issues in use of high-dose steroids as first-line treatment for adult minimal change nephrotic syndrome. Tacrolimus is used as a steroid-sparing immunosuppressant to reduce adverse effects of long-term or repeated steroid treatment, but no large-scale randomized study has compared combined tacrolimus and low-dose steroid with high-dose steroid in treating minimal change nephrotic syndrome in adults. In this open-label randomized trial, the authors found that treatment with tacrolimus plus low-dose steroid was noninferior to high-dose steroid for complete remission at 8 weeks, and that treatment with a maintenance dose of tacrolimus during steroid tapering reduced the relapse rate, with no clinically-relevant safety differences. This indicates that tacrolimus is an effective alternative to high-dose steroids in this disease, although investigation into long-term safety is warranted. Background Tacrolimus is used as a steroid-sparing immunosuppressant in adults with minimal change nephrotic syndrome. However, combined treatment with tacrolimus and low-dose steroid has not been compared with high-dose steroid for induction of clinical remission in a large-scale randomized study. Methods In this 24-week open-label noninferiority study, we randomized 144 adults with minimal change nephrotic syndrome to receive 0.05 mg/kg twice-daily tacrolimus plus once-daily 0.5 mg/kg prednisolone, or once-daily 1 mg/kg prednisolone alone, for up to 8 weeks or until achieving complete remission. Two weeks after complete remission, we tapered the steroid to a maintenance dose of 5–7.5 mg/d in both groups until 24 weeks after study drug initiation. The primary end point was complete remission within 8 weeks (urine protein: creatinine ratio 〈 0.2 g/g). Secondary end points included time until remission and relapse rates (proteinuria and urine protein: creatinine ratio 〉 3.0 g/g) after complete remission to within 24 weeks of study drug initiation. Results Complete remission within 8 weeks occurred in 53 of 67 patients (79.1%) receiving tacrolimus and low-dose steroid and 53 of 69 patients (76.8%) receiving high-dose steroid; this difference demonstrated noninferiority, with an upper confidence limit below the predefined threshold (20%) in both intent-to-treat (11.6%) and per-protocol (17.0%) analyses. Groups did not significantly differ in time until remission. Significantly fewer patients relapsed on maintenance tacrolimus (3–8 ng/ml) plus tapered steroid versus tapered steroid alone (5.7% versus 22.6%, respectively; P =0.01). There were no clinically relevant safety differences. Conclusions Combined tacrolimus and low-dose steroid was noninferior to high-dose steroid for complete remission induction in adults with minimal change nephrotic syndrome. Relapse rates were significantly lower with maintenance tacrolimus and steroid compared with steroid alone. No clinically-relevant differences in safety findings were observed.
    Type of Medium: Online Resource
    ISSN: 1046-6673 , 1533-3450
    URL: Article
    DOI: 10.1681/ASN.2019050546
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2021
    detail.hit.zdb_id: 2029124-3
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  • 6
    Online Resource
    Online Resource
    Inflammation Alters Relationship Between High‐Density Lipoprotein Cholesterol and Cardiovascular Risk in Patients With Chronic Kidney Disease: Results From KNOW‐CKD
    Ovid Technologies (Wolters Kluwer Health) ; 2021
    In:  Journal of the American Heart Association Vol. 10, No. 16 ( 2021-08-17)
    Details
    In: Journal of the American Heart Association, Ovid Technologies (Wolters Kluwer Health), Vol. 10, No. 16 ( 2021-08-17)
    Abstract: The function of high‐density lipoprotein can change from protective to proatherosclerotic under inflammatory conditions. Herein, we studied whether inflammation could modify the relationship between high‐density lipoprotein level and risk of adverse outcomes in patients with chronic kidney disease . Methods and Results In total, 1864 patients from the prospective KNOW‐CKD (Korean Cohort Study for Outcome in Patients With Chronic Kidney Disease) were enrolled. The main predictor was high‐density lipoprotein cholesterol (HDL‐C) level. Presence of inflammation was defined by hs‐CRP (high‐sensitivity C‐reactive protein) level of ≥1.0 mg/L. The primary outcome was extended major adverse cardiovascular events. During 9231.2 person‐years of follow‐up, overall incidence of the primary outcome was 15.8 per 1000 person‐years. In multivariable Cox analysis after adjusting for confounders, HDL‐C level was not associated with the primary outcome. There was a significant interaction between the inflammatory status and HDL‐C for risk of extended major adverse cardiovascular events ( P =0.003). In patients without inflammation, the hazard ratios (HRs) (95% CIs) for HDL‐C levels 〈 40, 50 to 59, and ≥60 mg/dL were 1.10 (0.50–1.82), 0.95 (0.50–1.82), and 0.42 (0.19–0.95), respectively, compared with HDL‐C of 40 to 49 mg/dL. However, the significant association for HDL‐C ≥60 mg/dL was not seen after Bonferroni correction. In patients with inflammation, we observed a trend toward increased risk of extended major adverse cardiovascular events in higher HDL‐C groups (HRs [95% CIs], 0.73 [0.37–1.43] , 1.24 [0.59–2.61], and 1.56 [0.71–3.45] , respectively), but without statistical significance. Conclusions The association between HDL‐C level and adverse cardiovascular outcomes showed reverse trends based on inflammation status in Korean patients with chronic kidney disease. Registration URL: https://www.clinicaltrials.gov ; Unique identifier: NCT01630486.
    Type of Medium: Online Resource
    ISSN: 2047-9980
    URL: Article
    DOI: 10.1161/JAHA.120.021731
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2021
    detail.hit.zdb_id: 2653953-6
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  • 7
    Online Resource
    Online Resource
    Comparison of in-hospital use of mechanical chest compression devices for out-of-hospital cardiac arrest patients : AUTOPULSE vs LUCAS
    Ovid Technologies (Wolters Kluwer Health) ; 2019
    In:  Medicine Vol. 98, No. 45 ( 2019-11), p. e17881-
    Details
    In: Medicine, Ovid Technologies (Wolters Kluwer Health), Vol. 98, No. 45 ( 2019-11), p. e17881-
    Abstract: This study aimed to investigate the prognostic difference between AUTOPULSE and LUCAS for out-of-hospital cardiac arrest (OHCA) adult patients. A retrospective observational study was performed nationwide. Adult OHCA patients after receiving in-hospital mechanical chest compression from 2012 to 2016 were included. The primary outcomes were sustained return of spontaneous circulation (ROSC) of more than 20 minutes and survival to discharge. Among 142,906 OHCA patients, 820 patients were finally included. In multivariate analysis, female (OR, 0.57; 95% CI, 0.33–0.99), witnessed arrest (OR, 2.10; 95% CI, 1.20–3.69), and arrest cause of non-cardiac origin (OR, 0.25; 95% CI, 0.10–0.62) were significantly associated with the increase in ROSC. LUCAS showed a lower survival than AUTOPULSE (OR, 0.23; 95% CI, 0.06–0.84), although it showed no significant association with ROSC. Percutaneous coronary intervention (OR, 6.30; 95% CI, 1.53–25.95) and target temperature management (TTM; OR, 7.30; 95% CI, 2.27–23.49) were the independent factors for survival. We categorized mechanical CPR recipients by witness to compare prognostic effectiveness of AUTOPULSE and LUCAS. In the witnessed subgroup, female (OR, 0.46; 95% CI, 0.24–0.89) was a prognostic factor for ROSC and shockable rhythm (OR, 5.04; 95% CI, 1.00–25.30), percutaneous coronary intervention (OR, 12.42; 95% CI, 2.04–75.53), and TTM (OR, 9.03; 95% CI, 1.86–43.78) for survival. In the unwitnessed subgroup, no prognostic factors were found for ROSC, and TTM (OR, 99.00; 95% CI, 8.9–1100.62) was found to be an independent factor for survival. LUCAS showed no significant increase in ROSC or survival in comparison with AUTOPULSE in both subgroups. The in-hospital use of LUCAS may have a deleterious effect for survival compared with AUTOPULSE.
    Type of Medium: Online Resource
    ISSN: 0025-7974 , 1536-5964
    URL: Article
    DOI: 10.1097/MD.0000000000017881
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2019
    detail.hit.zdb_id: 2049818-4
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  • 8
    Online Resource
    Online Resource
    Association Between Longitudinal Blood Pressure Trajectory and the Progression of Chronic Kidney Disease: Results From the KNOW-CKD
    Ovid Technologies (Wolters Kluwer Health) ; 2021
    In:  Hypertension Vol. 78, No. 5 ( 2021-11), p. 1355-1364
    Details
    In: Hypertension, Ovid Technologies (Wolters Kluwer Health), Vol. 78, No. 5 ( 2021-11), p. 1355-1364
    Abstract: Studies on the longitudinal temporal trend of blood pressure (BP) and its impact on kidney function are scarce. Here, we evaluated the association of dynamic changes in systolic blood pressure (SBP) over time with adverse kidney outcomes. We analyzed 1837 participants from the KNOW-CKD (Korean Cohort Study for Outcomes in Patients With Chronic Kidney Disease). The main exposure was 3 distinct SBP trajectories determined by the latent class mixed model (decreasing, stable, and increasing) using 3 SBP measurements at 0, 6, and 12 months. The primary outcome was CKD progression, defined as a composite of halving estimated glomerular filtration rate from baseline value or onset of end-stage kidney disease. SBP declined from 144 to 120 mm Hg in the decreasing SBP trajectory group and rose from 114 to 136 mm Hg in the increasing trajectory group within 1 year. During 6576 person-years of follow-up (median, 3.7 years), the composite outcome occurred in 521 (28.4%) participants. There were fewer primary outcome events in the decreasing (30.6%) and stable (26.5%) SBP trajectory groups than in the increasing trajectory group (33.0%). In the multivariable-adjusted cause-specific hazards model, increasing SBP trajectory was associated with a 1.28-fold higher risk for adverse kidney outcome compared with stable SBP trajectory. However, the risk for the primary outcome did not differ between the decreasing and stable SBP trajectory groups. In this longitudinal CKD cohort study, compared with stable SBP trajectory, increasing SBP trajectory was associated with higher risk for adverse kidney outcome, whereas decreasing SBP trajectory showed similar risk.
    Type of Medium: Online Resource
    ISSN: 0194-911X , 1524-4563
    URL: Article
    DOI: 10.1161/HYPERTENSIONAHA.121.17542
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2021
    detail.hit.zdb_id: 2094210-2
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  • 9
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    Online Resource
    Health-Related Quality of Life in Disease-Free Survivors of Surgically Treated Lung Cancer Compared With the General Population
    Ovid Technologies (Wolters Kluwer Health) ; 2012
    In:  Annals of Surgery Vol. 255, No. 5 ( 2012-05), p. 1000-1007
    Details
    In: Annals of Surgery, Ovid Technologies (Wolters Kluwer Health), Vol. 255, No. 5 ( 2012-05), p. 1000-1007
    Type of Medium: Online Resource
    ISSN: 0003-4932
    URL: Article
    DOI: 10.1097/SLA.0b013e31824f1e9e
    RVK:
    XA 23900
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2012
    detail.hit.zdb_id: 2002200-1
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  • 10
    Online Resource
    Online Resource
    Employment Status and Work-Related Difficulties in Lung Cancer Survivors Compared With the General Population
    Ovid Technologies (Wolters Kluwer Health) ; 2014
    In:  Annals of Surgery Vol. 259, No. 3 ( 2014-03), p. 569-575
    Details
    In: Annals of Surgery, Ovid Technologies (Wolters Kluwer Health), Vol. 259, No. 3 ( 2014-03), p. 569-575
    Type of Medium: Online Resource
    ISSN: 0003-4932
    URL: Article
    DOI: 10.1097/SLA.0b013e318291db9d
    RVK:
    XA 23900
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2014
    detail.hit.zdb_id: 2002200-1
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