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  • Ovid Technologies (Wolters Kluwer Health)  (7)
  • Volny, Ondrej  (7)
  • Medicine  (7)
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  • Ovid Technologies (Wolters Kluwer Health)  (7)
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  • Medicine  (7)
RVK
  • 1
    Online Resource
    Online Resource
    Global impact of the COVID-19 pandemic on stroke care and intravenous thrombolysis (1462)
    Ovid Technologies (Wolters Kluwer Health) ; 2021
    In:  Neurology Vol. 96, No. 15_supplement ( 2021-04-13)
    Details
    In: Neurology, Ovid Technologies (Wolters Kluwer Health), Vol. 96, No. 15_supplement ( 2021-04-13)
    Type of Medium: Online Resource
    ISSN: 0028-3878 , 1526-632X
    URL: Article
    DOI: 10.1212/WNL.96.15_supplement.1462
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2021
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  • 2
    Online Resource
    Online Resource
    Global Impact of COVID-19 on Stroke Care and IV Thrombolysis
    Ovid Technologies (Wolters Kluwer Health) ; 2021
    In:  Neurology Vol. 96, No. 23 ( 2021-06-08), p. e2824-e2838
    Details
    In: Neurology, Ovid Technologies (Wolters Kluwer Health), Vol. 96, No. 23 ( 2021-06-08), p. e2824-e2838
    Abstract: To measure the global impact of COVID-19 pandemic on volumes of IV thrombolysis (IVT), IVT transfers, and stroke hospitalizations over 4 months at the height of the pandemic (March 1 to June 30, 2020) compared with 2 control 4-month periods. Methods We conducted a cross-sectional, observational, retrospective study across 6 continents, 70 countries, and 457 stroke centers. Diagnoses were identified by their ICD-10 codes or classifications in stroke databases. Results There were 91,373 stroke admissions in the 4 months immediately before compared to 80,894 admissions during the pandemic months, representing an 11.5% (95% confidence interval [CI] −11.7 to −11.3, p 〈 0.0001) decline. There were 13,334 IVT therapies in the 4 months preceding compared to 11,570 procedures during the pandemic, representing a 13.2% (95% CI −13.8 to −12.7, p 〈 0.0001) drop. Interfacility IVT transfers decreased from 1,337 to 1,178, or an 11.9% decrease (95% CI −13.7 to −10.3, p = 0.001). Recovery of stroke hospitalization volume (9.5%, 95% CI 9.2–9.8, p 〈 0.0001) was noted over the 2 later (May, June) vs the 2 earlier (March, April) pandemic months. There was a 1.48% stroke rate across 119,967 COVID-19 hospitalizations. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection was noted in 3.3% (1,722/52,026) of all stroke admissions. Conclusions The COVID-19 pandemic was associated with a global decline in the volume of stroke hospitalizations, IVT, and interfacility IVT transfers. Primary stroke centers and centers with higher COVID-19 inpatient volumes experienced steeper declines. Recovery of stroke hospitalization was noted in the later pandemic months.
    Type of Medium: Online Resource
    ISSN: 0028-3878 , 1526-632X
    URL: Article
    DOI: 10.1212/WNL.0000000000011885
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2021
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  • 3
    Online Resource
    Online Resource
    Abstract WP28: Eligibility for Mechanical Thrombectomy in Acute Ischemic Stroke: a Phase IV Multi-center Screening Log Registry
    Ovid Technologies (Wolters Kluwer Health) ; 2016
    In:  Stroke Vol. 47, No. suppl_1 ( 2016-02)
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 47, No. suppl_1 ( 2016-02)
    Abstract: Background & Purpose: No eligibility screening logs were kept to support recent mechanical thrombectomy (MT) RCTs establishing safety and efficacy for acute ischemic stroke (AIS). We sought to evaluate the potential eligibility for MT among consecutive AIS patients in a prospective multicenter study. Methods: We prospectively evaluated consecutive patients admitted with the diagnosis of AIS in three tertiary care stroke centers during a twelve-month period. Admission stroke severity was documented using NIHSS-score, while all patients underwent baseline neurovascular imaging using MRA/CTA. Potential eligibility for MT was evaluated using inclusion criteria from MR CLEAN & REVASCAT as these protocols utilized imaging and selection methods that most closely mirrored everyday clinical practice. Results: Our study population consisted of 1161 AIS patients (mean age 66±14 years, 55% men, median admission NIHSS-score: 5 points, IQR 2-8). A total of 86 (7%, 95%CI: 6%-9%) and 66 (6%, 95%CI: 4%-7%) patients fulfilled the inclusion criteria for MR CLEAN & REVASCAT respectively, while 57 cases were eligible for inclusion in both trials (5%, 95%CI: 4%-6%). There was no evidence of heterogeneity (p 〉 0.150) regarding the eligibility of AIS for MT across the three participating centers. Absence of proximal intracranial occlusion (70%), followed by hospital arrival outside the eligible time window (31% for MR CLEAN 6-hour window & 29% for REVASCAT 8-hour window), low baseline NIHSS-score (16% below the 2 point cut-off of MR Clean & 46% below the 6 point cut-off of REVASCAT) and posterior circulation cerebral ischemia (16%) were the four most common reasons for ineligibility for MT. Conclusion: Our everyday clinical practice experience suggests that approximately one out of fourteen to seventeen consecutive AIS may be eligible for MT if inclusion criteria for MR CLEAN and REVASCAT are strictly adhered to. Delayed presentation from symptom onset represents the only modifiable MT exclusion factor.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/str.47.suppl_1.wp28
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2016
    detail.hit.zdb_id: 1467823-8
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  • 4
    Online Resource
    Online Resource
    Abstract T MP109: Leptomeningeal Collaterals, Ageing and Metabolic Syndrome in Development of White Matter Hyperintensities
    Ovid Technologies (Wolters Kluwer Health) ; 2015
    In:  Stroke Vol. 46, No. suppl_1 ( 2015-02)
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 46, No. suppl_1 ( 2015-02)
    Abstract: Background: Ageing and metabolic syndrome are associated with poor leptomeningeal collateral status. Animal studies suggest that collateral rarefaction and consequent decrease in vascular efficiency may result in increase in white matter hyperintensities. Using mediational analysis, we test if the known effect of ageing and metabolic syndrome on development of white matter hyperintensities is mediated through collateral status. Methods: Data are from the Keimyung Stroke Registry. Consecutive patients with M1 segment middle cerebral artery (MCA) ± intracranial internal carotid artery (ICA) occlusions on baseline CT-angiography (CTA) and brain MRI done within 90 minutes after admission CT/CTA, from May 2004 to July 2009, were included. Baseline and follow-up imaging was analyzed blinded to all clinical information. Two raters assessed leptomeningeal collaterals on baseline CTA by consensus, using previously validated regional leptomeningeal score (rLMC). FLAIR volume of white matter hyperintensities (ml) was measured in the unaffected hemisphere using Quantomo® software. The template of Baron and Kenney along with two tests (Sobel’s and Aroian’s) was used to test for the presence of mediation. Results: Baseline characteristics (n=120): mean age 67.4±11.4 years, male (53.3%), median baseline NIHSS 14 (IQR 11-20), and median stroke symptom onset to CTA 166 minutes (IQR 96-262). Poor collateral status at baseline (rLMC score 0-10) was seen in 42/120 (35%). Mean periventricular hyperintensity (PVH) volume was 6.5 ml (SD=6.0) while mean white matter hyperintensity (WMH-total) volume was 8.6 ml (SD=8.0). Higher age was associated with increased PVH and WMH-total (p 〈 0.01) while metabolic syndrome was associated with increased PVH only (p=0.03). We did not find statistical evidence of leptomeningeal collaterals mediating the association between ageing and PVH/WMH-total or between metabolic syndrome and PVH (Sobel’s and Aroian’s test p 〉 0.05). Conclusion: The effect of ageing and metabolic syndrome on development of white matter hyperintensities is independent of an effect mediated through the poor collateral status.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/str.46.suppl_1.tmp109
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2015
    detail.hit.zdb_id: 1467823-8
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  • 5
    Online Resource
    Online Resource
    Abstract WP31: Mechanical Thrombectomy Performs Similarly in Real-World Clinical Practise as in Randomized Trials: Nationwide Study From the Czech Republic
    Ovid Technologies (Wolters Kluwer Health) ; 2018
    In:  Stroke Vol. 49, No. Suppl_1 ( 2018-01-22)
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 49, No. Suppl_1 ( 2018-01-22)
    Abstract: Background: In randomized clinical trials (RCTs) mechanical thrombectomy (MT) was proved to be a highly effective and safe treatment in acute ischemic stroke. Its efficacy and safety in routine practice needs to be documented. Methods: Available nationwide 2016 data for the Czech Republic (CR) from SITS-TBY registry of patients with terminal internal carotid artery (ICA) and/or middle cerebral artery (MCA) occlusion were compared with data from HERMES meta-analysis. Categorical variables were compared by Pearson′s Chi-squared test, ordinal/continuous variables by Mann-Whitney test. Results: Fourteen/15 comprehensive stroke centres reported data to SITS-TBY. From 1,053 MTs performed in the CR, 845 (80%) patients were reported to SITS-TBY. From these patients, 605 (72%) patients were involved in analyses (available outcome data in Tab.). CR and HERMES patients were comparable in: age, sex, baseline NIHSS. Occlusion locations were as follows (CR vs. HERMES): ICA 22% vs. 21% (p=0.16), M1 MCA 62% vs. 69% (p=0.004), M2 MCA 16% vs. 8% (p 〈 0.0001). Intravenous thrombolysis was given in 76% vs. 83% patients (p=0.003). Median onset-to-reperfusion times were comparable: 232 vs. 285 min (p=0.66); median groin-to-reperfusion times were 58 vs. 63 min. Modified TICI 2b/3 was achieved in 74% (433/584) vs. 71% (390/549), p=0.24. There was no difference in percentage of PH type 2 (5.7 vs. 5.1%). Modified Rankin scale 0-2 at 3 months achieved 44% (103/235) vs. 46% (291/633) patients, p=0.57. Conclusions: This nationwide experience on mechanical thrombectomy in acute ischemic stroke documents safety, efficacy and logistics comparable with HERMES data. Tab. Comparison on available demographic characteristics, past medical history, clinical and radiological characteristics, treatment details and outcomes in SITS-TBY versus HERMES.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/str.49.suppl_1.WP31
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2018
    detail.hit.zdb_id: 1467823-8
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  • 6
    Online Resource
    Online Resource
    Abstract 60: Utilization, Workflow, and Outcomes of Endovascular Thrombectomy in Patients With versus Without Pre-Morbid Disability in a National Stroke Registry
    Ovid Technologies (Wolters Kluwer Health) ; 2024
    In:  Stroke Vol. 55, No. Suppl_1 ( 2024-02)
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 55, No. Suppl_1 ( 2024-02)
    Abstract: Background: Given the paucity of high-quality data on acute stroke therapies in patients with pre-morbid disability, they risk being routinely excluded from such therapies. We examined utilization of endovascular thrombectomy (EVT), workflow, and outcomes among ischemic stroke patients with vs without pre-morbid disability in a national registry. Methods: We used data for the Czech Republic from 1-January-2016 to 31-December-2020. Pre-morbid disability was defined as pre-stroke modified Rankin Scale score (mRS) 〉 2. We compared receipt of EVT, workflow times, ΔmRS (change from pre-stroke to 3-months), intracerebral hemorrhage (ICH), mortality, and discharge NIHSS among patients with vs without pre-morbid disability, adjusting for age, sex, baseline NIHSS, and comorbidities, and verified using propensity score-weighting (PSW) for differences in treatment assignment. Results: Among 22,405 patients, 1,712 (7.6%) had pre-stroke mRS 〉 2. Patients with pre-morbid disability were less likely to receive EVT (10.1% vs 20.7%, aOR:0.30, 95%CI:0.24-0.36) and had longer door-to-puncture times (median:75-minutes, IQR:58-100 vs 54, IQR:27-77, adjusted-difference:12.5, 95%CI:2.68-22.3), worse ΔmRS (adjusted rate-ratio, aIRR on PSW:1.57, 1.43-1.72), rates of 3-month mRS 5-6, discharge NIHSS, and mortality (aOR-PSW[mortality]:2.54, 1.92-3.34); ICH rates did not differ. Among those with pre-morbid disability, 32.1% returned to pre-stroke state; this ranged from 19.6% for those 〉 85-years to 66.0% for 〈 65-years. EVT was associated with better outcomes including lower ΔmRS (aIRR-PSW:0.87, 0.83-0.91) and mortality, with no interaction of treatment effect by pre-morbid disability (e.g. mortality p interaction =0.73). EVT recipients with pre-morbid disability did not differ significantly for several key outcomes including ΔmRS (aIRR:0.99, 0.84-1.17), but were more likely to have mRS 5-6 (70.1% vs 39.5%, aOR:1.85, 1.12-3.04). Conclusions: Patients with pre-morbid disability were less likely to receive EVT and had slower treatment and worse outcomes than those without disability. However, patients fared better with EVT versus medical care, and one-third with pre-stroke disability returned to their pre-stroke state.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/str.55.suppl_1.60
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2024
    detail.hit.zdb_id: 1467823-8
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  • 7
    Online Resource
    Online Resource
    Thrombectomy vs medical management in low NIHSS acute anterior circulation stroke
    Ovid Technologies (Wolters Kluwer Health) ; 2020
    In:  Neurology Vol. 95, No. 24 ( 2020-12-15), p. e3364-e3372
    Details
    In: Neurology, Ovid Technologies (Wolters Kluwer Health), Vol. 95, No. 24 ( 2020-12-15), p. e3364-e3372
    Abstract: To undertake an effectiveness and safety analysis of EVT in patients with LVO and NIH Stroke Scale (NIHSS) score ≤6 using datasets of multicenter and multinational nature. Methods We pooled patients with anterior circulation occlusion from 3 prospective international cohorts. Patients were eligible if presentation occurred within 12 hours from last known well and baseline NIHSS ≤6. Primary outcome was modified Rankin Scale (mRS) score 0–1 at 90 days. Secondary outcomes included neurologic deterioration at 24 hours (change in NIHSS of ≥2 points), mRS 0–2 at 90 days, and 90-day all-cause mortality. We used propensity score matching to adjust for nonrandomized treatment allocation. Results Among 236 patients who fit inclusion criteria, 139 received EVT and 97 received medical management. Compared to medical management, the EVT group was younger (65 vs 72 years; p 〈 0.001), had more proximal occlusions ( p 〈 0.001), and less frequently received concurrent IV thrombolysis (57.7% vs 71.2%; p = 0.04). After propensity score matching, clinical outcomes between the 2 groups were not significantly different. EVT patients had an 8.6% (95% confidence interval [CI] −8.8% to 26.1%) higher rate of excellent 90-day outcome, despite a 22.3% (95% CI, 3.0%–41.6%) higher risk of neurologic deterioration at 24 hours. Conclusions EVT for LVO in patients with low NIHSS score was associated with increased risk of neurologic deterioration at 24 hours. However, both EVT and medical management resulted in similar proportions of excellent clinical outcomes at 90 days. Classification of evidence This study provides Class III evidence that for patients with acute anterior circulation ischemic strokes and LVO with NIHSS 〈 6, EVT and medical management result in similar outcomes at 90 days.
    Type of Medium: Online Resource
    ISSN: 0028-3878 , 1526-632X
    URL: Article
    DOI: 10.1212/WNL.0000000000010955
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2020
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