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  • 1
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    Online Resource
    Abstract WMP70: Etiology of Stroke Based on Early Analysis of Clot Cytometry Obtained Through First Pass Technique for Mechanical Thrombectomy
    Ovid Technologies (Wolters Kluwer Health) ; 2019
    In:  Stroke Vol. 50, No. Suppl_1 ( 2019-02)
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 50, No. Suppl_1 ( 2019-02)
    Abstract: Introduction: Mechanical thrombectomy is the best treatment for large vessel occlusion in acute strokes, this technique can obtain clots for further analysis. Objective: To evaluate flow cytometry in thrombi obtained in the treatment of hyperacute stroke by mechanical thrombectomy, as a diagnostic tool in the etiological study of stroke Methods: Consecutively, intracranial clots were obtained in the hyperacute phase of stroke with solitaire device. Cell suspensions of thrombi were prepared that were labeled by direct immunofluorescence using conjugated monoclonal antibodies. The labeled samples were acquired in a Naviostm flow cytometer (Beckman-Coulter). The following leukocyte populations were studied: granulocytes, monocytes, total lymphocytes, T lymphocytes (CD3 +), helper T lymphocytes (CD3 +, CD4 +), suppressor-cytotoxic T lymphocytes (CD3 +, CD8 +), TNK lymphocytes (CD3 +, CD56 / 16 +) , NK lymphocytes (CD3-, CD56 / 16 +) and B lymphocytes (CD19 +). The results were expressed as percentages (%). The aetiology of stroke was categorized in secondary to: major structural heart disease, atrial fibrillation, stroke of atherosclerotic etiology (severe stenosis or complicated aortic atheromatosis ulceration) or infrequent causes. Results: 40 samples were analyzed. Clots of atherosclerotic etiology (n = 13) were associated with higher% of CD4 T lymphocytes (24.85% vs 15.83% p = 0.016), and higher% of NK (21.08% vs 17.04) % p = 0.07), also showed a tendency to a higher% LT (23.69% vs 16.46% p = 0.052). Strokes secondary to AF were associated with a higher percentage of CD8 T lymphocytes (20.24 vs 13.56 p = 0.048). Conclussion: Analysis by flow cytometry of clots obtained in the hyperacute phase of stroke showed significant differences in the different lymphocyte populations according to the etiology
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/str.50.suppl_1.WMP70
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2019
    detail.hit.zdb_id: 1467823-8
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  • 2
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    Abstract TP461: Predictors of Groin Punction Complication After Edovascular Therapies
    Ovid Technologies (Wolters Kluwer Health) ; 2019
    In:  Stroke Vol. 50, No. Suppl_1 ( 2019-02)
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 50, No. Suppl_1 ( 2019-02)
    Abstract: Background: Endovascular therapies(EVT) have exponentially increased in the last few years. To maximize the benefits of EVT, complications related to the treatment need to be prevented or minimized with early detection and appropriate management. We implemented a specific registry to collect femoral post-puncture complications detected at different timepoints. Our aim was to identify factors associated with severe groin punction complications. Methods: Prospective study of consecutive patients treated with acute EVT or scheduled (angioplasty), admitted to our Stroke Unit from February2017-June2018. Post-catheterization femoral complications included: groin bleeding(GB), groin hematoma(GH), retroperitoneal hematoma(RH), femoral artery pseudoaneurysm(FAP), and artery dissection(AD). A specific registry was created for data collection at different timepoints: During or immediate post-EVT, at 24h post-compression and at discharge. Results: 384patients were treated with EVT(73%acute), mean age 71+/-13y.o, 69% men. Mynxgrip closure system was used in 346(91,8%). Compressive measures needed to be reinforced in 55 cases(14,5%)/changed in 15(4%). Early mobilization protocol(24-48h) was initiated in 335patients(92,3%). 9patients (2,8%) did not maintain the first 24h absolute rest. 57patients(15,1%) presented mild immediate complications(49GH,6GB). At 24h, 181(47,1%)patients presented GH(28,6%superficial, 18,2%internal) and 5GB(1,3%). At discharge, 29(8,1%)patients had presented clinically significant femoral complications: 16GH(13deep), 5FAP, 1AD, 4RH. 2 of those complications were fatal. Variables associated with severe complications at discharge were: age(p=0.037), non-use of mynxgrip(p=0.001), compressive replacement(p 〈 0.001), non-compliance of early mobilization protocol(p=0.014). Conclusion: In our series, we found a yield of 8,1% of clinically significant groin complications associated with the EVT (0,5% fatal). We indentified age, closure device, requirement to replace compressive and lack of accomplishment of the early mobilization protocol as predictors of these complications.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/str.50.suppl_1.TP461
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2019
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  • 3
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    Online Resource
    Improving the Evaluation of Collateral Circulation by Multiphase Computed Tomography Angiography in Acute Stroke Patients Treated with Endovascular Reperfusion Therapies
    S. Karger AG ; 2016
    In:  Interventional Neurology Vol. 5, No. 3-4 ( 2016), p. 209-217
    Details
    In: Interventional Neurology, S. Karger AG, Vol. 5, No. 3-4 ( 2016), p. 209-217
    Abstract: Good collateral circulation (CC) is associated with favorable outcomes in acute stroke, but the best technique to evaluate collaterals is controversial. Single-phase computed tomography angiography (sCTA) is widely used but lacks temporal resolution. We aim to compare CC evaluation by sCTA and multiphase CTA (mCTA) as predictors of outcome in endovascular treated patients. 〈 b 〉 〈 i 〉 Methods: 〈 /i 〉 〈 /b 〉 Consecutive endovascular treated patients with M1 middle cerebral artery (MCA) or terminal intracranial carotid artery (TICA) occlusion confirmed by sCTA were included. Two more CTA acquisitions with 8- and 16-second delays were performed for mCTA. Endovascular thrombectomy was performed independently of the CC status according to a local protocol [Alberta Stroke Program Early CT score (ASPECTS) 〉 6, modified Rankin scale (mRS) score 〈 3]. CC on sCTA and mCTA were compared. 〈 b 〉 〈 i 〉 Results: 〈 /i 〉 〈 /b 〉 108 patients were included. Their mean age was 69.6 ± 13 years and their median National Institutes of Health Stroke Scale (NIHSS) score was 17 (interquartile range 8). 79 (73.1%) had M1 MCA and 29 (26.9%) TICA occlusions. The mean time from symptom onset to CTA was 146.8 ± 96.5 min. On sCTA, 50.9% patients presented good CC vs. 57.5% on mCTA. Good CC status in both sCTA and mCTA had a lower 24-hour infarct volume (27.4 vs. 74.8 cm 〈 sup 〉 3 〈 /sup 〉 on sCTA, p = 0.04; 17.2 vs. 97.8 cm 〈 sup 〉 3 〈 /sup 〉 on mCTA, p 〈 0.01). However, only good CC on mCTA was associated with lower 24-hour (5 vs. 8.5, p = 0.04) and median discharge NIHSS (2 vs. 4.5, p = 0.04) scores and functional independency (mRS score 〈 3) at 3 months (76.9 vs. 23.1%, p 〈 0.01). In a logistic regression model including age, NIHSS, ASPECTS and recanalization, only age (OR 0.96, 95% CI 0.93-0.99, p = 0.02) and good CC on mCTA (OR 5, 95% CI 1.99-12.6, p 〈 0.01) were independent predictors of functional outcome at 3 months. 〈 b 〉 〈 i 〉 Conclusion: 〈 /i 〉 〈 /b 〉 CC evaluation by mCTA is a better prognostic marker than CC evaluation by sCTA for clinical and functional endpoints in acute stroke patients treated with endovascular thrombectomy.
    Type of Medium: Online Resource
    ISSN: 1664-9737 , 1664-5545
    URL: Article
    DOI: 10.1159/000448525
    Language: English
    Publisher: S. Karger AG
    Publication Date: 2016
    detail.hit.zdb_id: 2662855-7
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  • 4
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    Online Resource
    Farmalarm : Application for Mobile Devices Improves Risk Factor Control After Stroke
    Ovid Technologies (Wolters Kluwer Health) ; 2019
    In:  Stroke Vol. 50, No. 7 ( 2019-07), p. 1819-1824
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 50, No. 7 ( 2019-07), p. 1819-1824
    Abstract: Risk factor control and treatment compliance in the following months after stroke are poor. We aim to validate a digital platform for smartphones to raise awareness among patients about the need to adopt healthy lifestyle, improve communication with medical staff, and treatment compliance. Methods— Farmalarm is an application (app) for smartphones designed to increase stroke awareness by medication alerts and compliance control, chat communication with medical staff, didactic video files, exercise monitoring. Patients with stroke discharged home were screened for participation and divided into groups: to follow the FARMALARM program for 3 to 4 weeks or standard of care follow-up. We determined achievement of risk factor control goals at 90 days. Results— From August 2015 to December 2016, from the 457 patients discharged home, 159 (34.8%) were included: Farmalarm (n=107); age 57±12, Control (n=52), age 59±10; without significant differences in baseline characteristics between groups. At 90 days, knowledge of vascular risk factors was higher in FARMALARM group (86.0% versus 69.2%, P 〈 0.01). The rate of patients with diabetes mellitus (83.2% versus 63.5%, P 〈 0.01) and hypercholesterolemia (80.3% versus 63.5%, P =0.03) under control and the rate of patients with 4 out of 4 risk factors under control was higher in FARMALARM group (50.4% versus 30.7%, P =0.02). A regression model showed that the use of Farmalarm was independently associated with all risk factors under control at 90 days (odds ratio, 2.3; 95% CI, 1.14–4.6; P =0.02). Conclusions— In patients with stroke discharged home, the use of mobile apps to monitor medication compliance and increase stroke awareness is feasible and seems to improve the control of vascular risk factors.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/STROKEAHA.118.024355
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2019
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  • 5
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    Abstract NS4: Early and Continued Nursing Care Allows a Fast, Intensive, and Maintained BP Reduction in Patients With Acute Intracerebral Hemorrhage
    Ovid Technologies (Wolters Kluwer Health) ; 2019
    In:  Stroke Vol. 50, No. Suppl_1 ( 2019-02)
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 50, No. Suppl_1 ( 2019-02)
    Abstract: Background and Purpose: Recent studies have highlighted the key influence of both time to achieve blood pressure (BP) control and the persistence of BP stable in the potential benefit of intensive BP reduction on attenuating intracerebral hemorrhage (ICH) expansion. We aimed to compare two different BP management protocols in acute ICH to determine the influence of stroke nursing practice in BP control over first 24h. Methods: Consecutive patients with spontaneous ICH 〈 6h and systolic BP (SBP) 〉 150 mmHg under an early (antihypertensive IV bolus by nursing attention at CT scan), intensive (SBP target 〈 140 mmHg), and maintained (antihypertensive continuous infusion after IV bolus) BP protocol within a 4-year period (2013-2017) were evaluated (Early-Intensive-Maintained SBP group). They were compared with a 1:1 matched prospectively collected historical control group (2009-2013) under a non-early (IV bolus by nursing attention at Stroke Unit), non-intensive (SBP target 〈 180 mmHg), and no-maintained (no continuous infusion after initial IV bolus) BP protocol. All patients underwent a bedside non-invasive BP monitoring at 15 min intervals over the first 24h. The time from BP lowering treatment initiation to achieve SBP target and the persistence of SBP bellow target at different time points was recorded in both groups. Results: One hundred and three Early-Intensive-Maintained SBP patients were matched with 103 controls. Mean age was 71.7±13.3 years, 134 (65%) were men, and median SBP was 177 (162-197) mmHg. Median time to SBP target achievement was lower in Early-Intensive-Maintained SBP patients as compared with control group (45 [30-60] vs. 90 [27-167.50] min, P=0.045 ). Early-Intensive-Maintained SBP patients maintained the SBP below the target more frequently than control group at different time points, including 60 min (40.8% vs. 36.9%, P 〈 0.001), 120 min (36.9% vs. 34%, P 〈 0.001), 18h (32% vs. 22.3%, P 〈 0.001), and 24h (33% vs. 4.9%, P 〈 0.001), respectively. Conclusions: The stroke nurse plays a key role in the management of BP in acute ICH patients. An early and continued nursing care allows a fast and maintained BP reduction in acute ICH patients under an intensive BP reduction protocol.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/str.50.suppl_1.NS4
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2019
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  • 6
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    Online Resource
    When to Stop : Detrimental Effect of Device Passes in Acute Ischemic Stroke Secondary to Large Vessel Occlusion
    Ovid Technologies (Wolters Kluwer Health) ; 2019
    In:  Stroke Vol. 50, No. 7 ( 2019-07), p. 1781-1788
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 50, No. 7 ( 2019-07), p. 1781-1788
    Abstract: Substantial proportion of patients who achieve successful recanalization of acute ischemic stroke due to large vessel occlusion do not achieve good functional outcome. We aim to analyze the effect of number of thrombectomy device passes and degree of the recanalization (by modified Thrombolysis in Cerebral Infarction) on the clinical and functional outcome. Methods— Five hundred forty-two consecutive patients underwent mechanical thrombectomy for large vessel occlusion in the anterior circulation at a single tertiary stroke center. Baseline characteristics, number of passes, recanalization degree, clinical outcome at 24 hours (measured by National Institutes of Health Scale score), and functional outcome (measured by modified Rankin Scale at 90 days) were registered. Multivariate analysis was performed to determine the association of number of passes and degree of recanalization with dramatical clinical recovery (final National Institutes of Health Scale score ≤2 or decrease in 8 or more National Institutes of Health Scale score points in 24 hours) and good functional outcome (modified Rankin Scale score ≤2 at 90 days). Results— Four hundred fifty-nine patients (84%) achieved successful recanalization (modified Thrombolysis in Cerebral Infarction 2B–3), 213 (39%) of them after first device pass. In the multivariate analysis, first-pass recanalization and modified Thrombolysis in Cerebral Infarction 3 were independent predictors of good functional outcome (odds ratio, 2.5; 95% CI, 1.4–4.5; P =0.002 and odds ratio, 2.6 CI; 1.5–4.7; P =0.001, respectively) and dramatical clinical recovery (odds ratio, 1.8; 95% CI, 1.1–3; P =0.032 and odds ratio, 2.9; 95% CI, 1.7–5.1; P 〈 0.001, respectively). Rate of recanalization declined after each pass 39% (213/542), 35% (113/310), 33% (63/190), and 24% (26/154) for passes 1 to 4, respectively and 28% (45/158) for every attempt above 4 passes ( P 〈 0.001). In patients who achieved recanalization, a linear association between number of passes and good functional outcome was observed: 1 pass (58.6%), 2 passes (50.5%), 3 passes (48.4%), 4 passes (38.5%), or 5 or more passes (25.6%; P 〈 0.001) as compared with patients who did not achieve recanalization (16.9%). Conclusions— High number of device passes and less degree of recanalization are associated with worse outcome in patients with acute ischemic stroke secondary to large vessel occlusion. Future studies should investigate the optimal number of passes that should be attempted in patients without substantial recanalization.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/STROKEAHA.119.025088
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2019
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  • 7
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    Abstract TP63: Hypoperfusion Volume Immediately After Endovascular Reperfusion Therapies: A Highly Accurate Early Predictor of Clinical Outcome After Recanalization
    Ovid Technologies (Wolters Kluwer Health) ; 2019
    In:  Stroke Vol. 50, No. Suppl_1 ( 2019-02)
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 50, No. Suppl_1 ( 2019-02)
    Abstract: Despite successful recanalization after endovascular treatment (EVT), a proportion of patients will not experience favorable outcome. We hypothesize that an early computed tomography perfusion (CTP-AFT) immediately after EVT may improve clinical outcome prediction. Methods: Consecutive patients with large vessel occlusion (LVO) who achieved partial (TICI 2a) or complete (TICI 2b/3) recanalization after EVT underwent CTP-AFT within 30 minutes. Different CTP parameters were measured with the Rapid software. Clinical data were recorded including dramatic recovery (DR: ≥8 points decrease from baseline NIHSS or NIHSS 0-2 at 24 hours) Results: Forty-six LVO were included, median baseline NIHSS was 18 (P25-75 13-22). Final recanalization grades were: TICI 2a, 5 patients (10.8%); TICI 2b, 19 (41.6%); and TICI 3, 22 (47.8%). Median 24h infarct volume was 7.5 cc (0-19). Median NIHSS decrease after 24h was 8 (1-16). Twenty-seven (58%) patients experienced DR. The volume with Tmax 〉 6 seconds was the only CTP parameter that correlated with degree of recanalization: TICI 2a: 102cc (60-138); TICI 2b: 15cc (0-37); and TICI 3: 0cc (0-5), p 〈 0.005. Lower Tmax 〉 6s volume was associated with lower 24h-infarct volume (p 〈 0.01), lower 24h NIHSS (p 〈 0.01) and higher probability of DR (p 〈 0.01). A ROC curve identified a Tmax 〉 6s volume 〈 5.5cc as the best cut-off point to predict DR (sens 73.7%, specif 70.4%, AUC 0.74). A logistic regression analysis adjusted by age, baseline NIHSS, ASPECTS, occlusion location and time and degree of recanalization showed that the only predictor of DR was a Tmax 〉 6s volume 〈 5.5cc (OR 21.6, CI 2.7-173.2, p 〈 0.01). Conclusion: CTP maps performed immediately after EVT correlated with degree of recanalization. However, a low Tmax 〉 6s volume predicted clinical outcome better than post-procedural TICI scores.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/str.50.suppl_1.TP63
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2019
    detail.hit.zdb_id: 1467823-8
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