Abstract P253: Readmission in Acute Ischemic Stroke Patients Undergoing Endovascular Treatment

Background: Recent trials have demonstrated a reduction in death or disability with endovascular treatment in patients with acute ischemic strokes. However, readmission rates and predictors are not known. Objective: To identify rates and factors associated with 30-day readmission after endovascular treatment in ischemic stroke patients. Methods: Nationwide Readmissions Data (NRD) between 2010 and 2017 was utilized to identify endovascular treatment in acute ischemic stroke patients using ICD-9 and ICD-10 codes. We used hierarchical logistic regression model to identify factors associated with 30-day readmissions. Results: Among 17, 562 acute ischemic stroke patients who survived to discharge after endovascular treatment, 2334 (13.29%) were readmitted within 30-days. Age => 65 years (odds ratio [OR]: 1.23, 95% confidence interval [CI]: 1.09 to 1.39, p =0.0005), chronic kidney disease (OR: 1.28, 95%CI: 1.12 to 1.47, p = 0.0004), congestive heart failure (OR: 1.25, 95%CI: 1.13 to 1.39, p <.0001), post procedure intracranial hemorrhage (OR: 1.09, 95%CI: 0.99 to 1.20, p = 0.04) and diabetes mellitus (OR: 1.09, 95%CI: 0.99 to 1.20, p = .09) during the index hospitalization were associated with readmission within 30 days. Conclusion: In this large nationally representative study, nearly one in 10 patients were readmitted within 30 days after discharge in acute ischemic stroke patients undergoing endovascular treatment. Medical comorbidities and post procedure intracranial hemorrhage were associated with 30-day readmission.

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Abstract TP13: Procedural Time (Groin Puncture to Recanalization) Significantly Predicts Outcomes in Endovascular Treatment: A Pooled Analysis of SWIFT, STAR and SWIFT PRIME Trials

Stroke ◽

10.1161/str.48.suppl_1.tp13 ◽

2017 ◽

Vol 48 (suppl_1) ◽

Author(s):

Ameer E Hassan ◽

Jeffrey L Saver ◽

Mayank Goyal ◽

David S Liebeskind ◽

Reza Jahan ◽

...

Keyword(s):

Ischemic Stroke ◽

Endovascular Treatment ◽

Acute Ischemic Stroke ◽

Clinical Outcomes ◽

Pooled Analysis ◽

Favorable Outcome ◽

Stroke Patients ◽

Nihss Score ◽

Post Procedure ◽

Procedural Time

Background: Recent single center studies have suggested that “procedural time” independent of “time to procedure” can affect outcomes of acute ischemic stroke patients undergoing endovascular treatment (ET). We performed a pooled analysis from three ET trials to determine the effect of procedural time on angiographic and clinical outcomes. Objective: To determine the relationship between procedural time and clinical outcomes among acute ischemic stroke patients undergoing successful recanalization with ET. Methods: We analyzed data from SWIFT, STAR and SWIFT PRIME trials. Baseline demographic and clinical characteristics, NIHSS score on admission, intracranial hemorrhage rates and mRS at 3 months post procedure were analyzed. TICI scale was used to grade post procedure angiographic recanalization. Procedural time was defined by the time interval between groin puncture and recanalization. We estimated the procedural time after which favorable clinical outcome was unlikely even after recanalization (futile) after age and NIHSS score adjustment. Results: We analyzed 301 patients who underwent ET and had near complete or complete recanalization (TICI 2b or 3). The procedural time (±SD) was significantly shorter in patients who achieved a favorable outcome (mRS 0-2) compared with those who did not achieve favorable outcome (44±25 vs 51±33 minutes, p=0.04). Table 1. In the multivariate analysis (including all baseline characteristics with a p value <0.05 as independent variables), shorter procedural time was a significant predictor of lower odds of unfavorable outcome (OR 0.49, 95% CI 0.28, 0.85, p=0.012). The rates of favorable outcomes were significantly higher when the procedural time was <60 minutes compared with ≥60 minutes (62% vs 45%, p=0.020). Conclusion: Procedural time in patients undergoing mechanical thrombectomy for acute ischemic stroke is an important determinant of favorable outcomes in those with near complete or complete recanalization.

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Acute Kidney Injury after Endovascular Treatment in Patients with Acute Ischemic Stroke

Journal of Clinical Medicine ◽

10.3390/jcm9051471 ◽

2020 ◽

Vol 9 (5) ◽

pp. 1471

Author(s):

Joonsang Yoo ◽

Jeong-Ho Hong ◽

Seong-Joon Lee ◽

Yong-Won Kim ◽

Ji Man Hong ◽

...

Keyword(s):

Acute Kidney Injury ◽

Ischemic Stroke ◽

Endovascular Treatment ◽

Acute Ischemic Stroke ◽

Odds Ratio ◽

Functional Outcomes ◽

Kidney Injury ◽

Stroke Patients ◽

Poor Functional Outcome ◽

Factors Associated

Acute kidney injury (AKI) is often associated with the use of contrast agents. We evaluated the frequency of AKI, factors associated with AKI after endovascular treatment (EVT), and associations with AKI and clinical outcomes. We retrospectively analyzed consecutively enrolled patients with acute ischemic stroke who underwent EVT at three stroke centers in Korea. We compared the characteristics of patients with and without AKI and independent factors associated with AKI after EVT. We also investigated the effects of AKI on functional outcomes and mortality at 3 months. Of the 601 patients analyzed, 59 patients (9.8%) developed AKI and five patients (0.8%) started renal replacement therapy after EVT. In the multivariate analysis, diabetes mellitus (odds ratio (OR), 2.341; 95% CI, 1.283–4.269; p = 0.005), the contrast agent dose (OR, 1.107 per 10 mL; 95% CI, 1.032–1.187; p = 0.004), and unsuccessful reperfusion (OR, 1.909; 95% CI, 1.019–3.520; p = 0.040) were independently associated with AKI. The presence of AKI was associated with a poor functional outcome (OR, 5.145; 95% CI, 2.177–13.850; p < 0.001) and mortality (OR, 8.164; 95% CI, 4.046–16.709; p < 0.001) at 3 months. AKI may also affect the outcomes of ischemic stroke patients undergoing EVT. When implementing EVT, practitioners should be aware of these risk factors.

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Mechanical thrombectomy of acute ischemic stroke with a new intermediate aspiration catheter: preliminary results

Journal of NeuroInterventional Surgery ◽

10.1136/neurintsurg-2017-013679 ◽

2018 ◽

Vol 10 (10) ◽

pp. 975-977 ◽

Cited By ~ 5

Author(s):

Fabrizio Sallustio ◽

Enrico Pampana ◽

Alessandro Davoli ◽

Stefano Merolla ◽

Giacomo Koch ◽

...

Keyword(s):

Ischemic Stroke ◽

Endovascular Treatment ◽

Acute Ischemic Stroke ◽

Intracranial Hemorrhage ◽

Mechanical Thrombectomy ◽

Functional Independence ◽

Stroke Patients ◽

Frequent Site ◽

Symptomatic Intracranial Hemorrhage ◽

Procedural Outcomes

Background and purposeTo report clinical and procedural outcomes of acute ischemic stroke patients after endovascular treatment with the new thromboaspiration catheter AXS Catalyst 6.MethodsPatients with anterior and posterior circulation stroke were selected. Successful reperfusion defined as a Thrombolysis in Cerebral Infarction (TICI) score ≥2 b and 3-month functional independence defined as a modified Rankin Scale (mRS) ≤2 were the main efficacy outcomes. Symptomatic intracranial hemorrhage and mortality were the main safety outcomes.Results107 patients were suitable for analysis. Mean age was 73.18±12.62 year and median baseline NIHSS was 17 (range: 3–32). The most frequent site of occlusion was the middle cerebral artery (MCA) (60.7%). 76.6% of patients were treated with AXS Catalyst 6 alone without the need for rescue devices or thromboaspiration catheters. Successful reperfusion was achieved in 84.1%, functional independence in 47.6%, symptomatic intracranial hemorrhage occurred in 3.7%, and mortality in 21.4%.ConclusionsEndovascular treatment with AXS Catalyst 6 proved to be safe, technically feasible, and effective. Comparison analyses with other devices for mechanical thrombectomy are needed.

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Acute reperfusion therapies for acute ischemic stroke patients with unknown time of symptom onset or in extended time windows: an individualized approach

Therapeutic Advances in Neurological Disorders ◽

10.1177/17562864211021182 ◽

2021 ◽

Vol 14 ◽

pp. 175628642110211

Author(s):

Georgios Magoufis ◽

Apostolos Safouris ◽

Guy Raphaeli ◽

Odysseas Kargiotis ◽

Klearchos Psychogios ◽

...

Keyword(s):

Ischemic Stroke ◽

Endovascular Treatment ◽

Acute Ischemic Stroke ◽

Symptom Onset ◽

Time Windows ◽

Intravenous Thrombolysis ◽

Inclusion Criteria ◽

Stroke Patients ◽

Treatment Algorithms ◽

Late Presenters

Recent randomized controlled clinical trials (RCTs) have revolutionized acute ischemic stroke care by extending the use of intravenous thrombolysis and endovascular reperfusion therapies in time windows that have been originally considered futile or even unsafe. Both systemic and endovascular reperfusion therapies have been shown to improve outcome in patients with wake-up strokes or symptom onset beyond 4.5 h for intravenous thrombolysis and beyond 6 h for endovascular treatment; however, they require advanced neuroimaging to select stroke patients safely. Experts have proposed simpler imaging algorithms but high-quality data on safety and efficacy are currently missing. RCTs used diverse imaging and clinical inclusion criteria for patient selection during the dawn of this novel stroke treatment paradigm. After taking into consideration the dismal prognosis of nonrecanalized ischemic stroke patients and the substantial clinical benefit of reperfusion therapies in selected late presenters, we propose rescue reperfusion therapies for acute ischemic stroke patients not fulfilling all clinical and imaging inclusion criteria as an option in a subgroup of patients with clinical and radiological profiles suggesting low risk for complications, notably hemorrhagic transformation as well as local or remote parenchymal hemorrhage. Incorporating new data to treatment algorithms may seem perplexing to stroke physicians, since treatment and imaging capabilities of each stroke center may dictate diverse treatment pathways. This narrative review will summarize current data that will assist clinicians in the selection of those late presenters that will most likely benefit from acute reperfusion therapies. Different treatment algorithms are provided according to available neuroimaging and endovascular treatment capabilities.

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Incorporation of α2-Plasmin Inhibitor into Fibrin Clots and Its Association with the Clinical Outcome of Acute Ischemic Stroke Patients

Biomolecules ◽

10.3390/biom11030347 ◽

2021 ◽

Vol 11 (3) ◽

pp. 347

Author(s):

Zsuzsa Bagoly ◽

Barbara Baráth ◽

Rita Orbán-Kálmándi ◽

István Szegedi ◽

Réka Bogáti ◽

...

Keyword(s):

Ischemic Stroke ◽

Acute Ischemic Stroke ◽

Intracranial Hemorrhage ◽

Intravenous Thrombolysis ◽

Fibrin Clot ◽

Clot Lysis ◽

Stroke Patients ◽

Plasmin Inhibitor ◽

Fibrin Clots

Cross-linking of α2-plasmin inhibitor (α2-PI) to fibrin by activated factor XIII (FXIIIa) is essential for the inhibition of fibrinolysis. Little is known about the factors modifying α2-PI incorporation into the fibrin clot and whether the extent of incorporation has clinical consequences. Herein we calculated the extent of α2-PI incorporation by measuring α2-PI antigen levels from plasma and serum obtained after clotting the plasma by thrombin and Ca2+. The modifying effect of FXIII was studied by spiking of FXIII-A-deficient plasma with purified plasma FXIII. Fibrinogen, FXIII, α2-PI incorporation, in vitro clot-lysis, soluble fibroblast activation protein and α2-PI p.Arg6Trp polymorphism were measured from samples of 57 acute ischemic stroke patients obtained before thrombolysis and of 26 healthy controls. Increasing FXIII levels even at levels above the upper limit of normal increased α2-PI incorporation into the fibrin clot. α2-PI incorporation of controls and patients with good outcomes did not differ significantly (49.4 ± 4.6% vs. 47.4 ± 6.7%, p = 1.000), however it was significantly lower in patients suffering post-lysis intracranial hemorrhage (37.3 ± 14.0%, p = 0.004). In conclusion, increased FXIII levels resulted in elevated incorporation of α2-PI into fibrin clots. In stroke patients undergoing intravenous thrombolysis treatment, α2-PI incorporation shows an association with the outcome of therapy, particularly with thrombolysis-associated intracranial hemorrhage.

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Abstract 1122‐000214: Clinical Factors Associated rTPA Administration in Acute Ischemic Stroke Patients with History of Atrial Fibrillation

Stroke: Vascular and Interventional Neurology ◽

10.1161/svin.01.suppl_1.000214 ◽

2021 ◽

Vol 1 (S1) ◽

Author(s):

Chase A Rathfoot ◽

Camron Edressi ◽

Carolyn B Sanders ◽

Krista Knisely ◽

Nicolas Poupore ◽

...

Keyword(s):

Atrial Fibrillation ◽

Ischemic Stroke ◽

Acute Ischemic Stroke ◽

Medical History ◽

Clinical Decision Making ◽

Past Medical History ◽

Clinical Factors ◽

Stroke Patients ◽

Factors Associated ◽

History Of

Introduction : Previous research into the administration of rTPA therapy in acute ischemic stroke patients has largely focused on the general population, however the comorbid clinical factors held by stroke patients are important factors in clinical decision making. One such comorbid condition is Atrial Fibrillation. The purpose of this study is to determine the clinical factors associated with the administration of rtPA in Acute Ischemic Stroke (AIS) patients specifically with a past medical history of Atrial Fibrillation (AFib). Methods : The data for this analysis was collected at a regional stroke center from January 2010 to June 2016 in Greenville, SC. It was then analyzed retrospectively using a multivariate logistic regression to identify factors significantly associated with the inclusion or exclusion receiving rtPA therapy in the AIS/AFib patient population. This inclusion or exclusion is presented as an Odds Ratio and all data was analyzed using IBM SPSS. Results : A total of 158 patients with Atrial Fibrillation who had Acute Ischemic Strokes were identified. For the 158 patients, the clinical factors associated with receiving rtPA therapy were a Previous TIA event (OR = 12.155, 95% CI, 1.125‐131.294, P < 0.040), the administration of Antihypertensive medication before admission (OR = 7.157, 95% CI, 1.071‐47.837, P < 0.042), the administration of Diabetic medication before admission (OR = 13.058, 95% CI, 2.004‐85.105, P < 0.007), and serum LDL level (OR = 1.023, 95% CI, 1.004‐1.042, P < 0.16). Factors associated with not receiving rtPA therapy included a past medical history of Depression (OR = 0.012, 95% CI, 0.000‐0.401, P < 0.013) or Obesity (OR = 0.131, 95% CI, 0.034‐0.507, P < 0.003), Direct Admission to the Neurology Floor (OR = 0.179, 95% CI, 0.050‐0.639, P < 0.008), serum Lipid level (OR = 0.544, 95% CI, 0.381‐0.984, P < 0.044), and Diastolic Blood Pressure (OR = 0.896, 95% CI, 0.848‐0.946, P < 0.001). Conclusions : The results of this study demonstrate that there are significant associations between several clinical risk factors, patient lab values, and hospital admission factors in the administration of rTPA therapy to AIS patients with a past medical history of Atrial Fibrillation. Further research is recommended to determine the extent and reasoning behind of these associations as well as their impact on the clinical course for AIS/AFib patients.

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Assessment and provision of rehabilitation among patients hospitalized with acute ischemic stroke in China: Findings from the China National Stroke Registry II

International Journal of Stroke ◽

10.1177/1747493017701945 ◽

2017 ◽

Vol 12 (3) ◽

pp. 254-263 ◽

Cited By ~ 8

Author(s):

Janet Prvu Bettger ◽

Zixiao Li ◽

Ying Xian ◽

Liping Liu ◽

Xingquan Zhao ◽

...

Keyword(s):

Ischemic Stroke ◽

Acute Ischemic Stroke ◽

Multivariable Analysis ◽

Thrombosis Prophylaxis ◽

Stroke Patients ◽

Multivariable Logistic Regression Model ◽

Recommended Care ◽

Stroke Registry ◽

Factors Associated ◽

Rehabilitation Assessment

Background Stroke rehabilitation improves functional recovery among stroke patients. However, little is known about clinical practice in China regarding the assessment and provision of rehabilitation among patients with acute ischemic stroke. Aims We examined the frequency and determinants of an assessment for rehabilitation among acute ischemic stroke patients from the China National Stroke Registry II. Methods Data for 19,294 acute ischemic stroke patients admitted to 219 hospitals from June 2012 to January 2013 were analyzed. The multivariable logistic regression model with the generalized estimating equation method accounting for in-hospital clustering was used to identify patient and hospital factors associated with having a rehabilitation assessment during the acute hospitalization. Results Among 19,294 acute ischemic stroke patients, 11,451 (59.4%) were assessed for rehabilitation. Rates of rehabilitation assessment varied among 219 hospitals (IQR 41.4% vs 81.5%). In the multivariable analysis, factors associated with increased likelihood of a rehabilitation assessment ( p < 0.05) included disability prior to stroke, higher NIHSS on admission, receipt of a dysphagia screen, deep venous thrombosis prophylaxis, carotid vessel imaging, longer length of stay, and treatment at a hospital with a higher number of hospital beds (per 100 units). In contrast, patients with a history of atrial fibrillation and hospitals with higher number of annual stroke discharges (per 100 patients) were less likely to receive rehabilitation assessment during the acute stroke hospitalization. Conclusions Rehabilitation assessment among acute ischemic stroke patients was suboptimal in China. Rates varied considerably among hospitals and support the need to improve adherence to recommended care for stroke survivors.

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Abstract TP18: Endovascular Treatment in the Elderly with Acute Ischemic Stroke - Is it Safe in Clinical Practice?

Stroke ◽

10.1161/str.48.suppl_1.tp18 ◽

2017 ◽

Vol 48 (suppl_1) ◽

Author(s):

Thabele M Leslie-Mazwi ◽

Syed F Ali ◽

Sanjeeva R Onteddu ◽

Adewumi D Amole ◽

Mehmet S Akdol ◽

...

Keyword(s):

Ischemic Stroke ◽

Hospital Mortality ◽

Endovascular Treatment ◽

Acute Ischemic Stroke ◽

Univariate Analysis ◽

The Elderly ◽

Stroke Patients ◽

Anterior Circulation ◽

Vessel Occlusion ◽

Younger Patients

Introduction: An overwhelming benefit from endovascular treatment (EVT) of acute ischemic stroke (AIS) has been shown in recent trials, making it the new evidence-based standard of care for ischemic stroke due to anterior circulation large vessel occlusion. We sought to determine usage, safety and efficacy of EVT in patients ≥80 years of age. Methods: Using GWTG stroke registry data from MGH and UAMS, we analyzed 7,505 consecutive stroke admissions from 01/2009 - 06/2016. Univariate analysis was carried out to compare AIS patients < 80 vs. those ≥ 80yr. Results: Of the total 7,505 AIS patients, 3,722 presented within 12 hr of last known well and of these 334 (334/3722, 9%) underwent EVT. The majority of AIS patients undergoing EVT were younger than 80yr of age (264/334, 79%). Of the patients who underwent EVT, younger patients were more often male, Caucasian, and had stroke risk factors of atrial fibrillation, CAD, hypertension and smokers. The two groups were similar in NIHSS, initial clinical presentation, modified pre-stroke Rankin scale of ≤ 3, and initiation of tPA as a drip and ship or stroke center front-door administration. Higher rates of pneumonia were observed in younger patients while rates of sICH were similar. Younger patients were more often discharged to home/inpatient rehabilitation facility. On univariate analysis, in-hospital mortality was significantly higher in patients ≥ 80yr [Unadj. OR 2.50 (1.24, 5.03), p=0.01], however the strength of the association attenuated substantially after adjusting for significant covariates [Adj. OR 2.34 (0.99, 5.47), p=0.05] (Table). Conclusion: Elderly stroke patients are largely excluded from clinical trials and data are limited on the effectiveness of EVT in this cohort. Our results showed that rate of sICH and adjusted in-hospital mortality was not statistically different between those < 80yr vs. ≥ 80yr. Further studies are needed to explore the functional outcome of the elderly stroke patients undergoing EVT.

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