Abstract P338: Incidence, Predictors and Impact of Infarct in New Territory in Escape Na1 Trial

Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
Nishita Singh ◽  
Martha Marko ◽  
Petra Cimflova ◽  
Johanna Ospel ◽  
Nima Kashani ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Clinical Outcome ◽  
Endovascular Therapy ◽  
Randomized Study ◽  
Maximum Diameter ◽  
Vascular Territory ◽  
Poor Clinical Outcome ◽  
Guide Catheter ◽  
Ct And Mri

Introduction: Infarct in new territory (INT) is a known complication of endovascular therapy. We assessed the prevalence, predictors and clinical relevance of INT Methods: We included patients from the ESCAPE-NA1: a multicenter, international randomized study that assessed the efficacy of intravenous nerinetide in patients with acute ischemic stroke who underwent EVT within 12 hours from onset. All imaging was re-evaluated, and INT was defined by presence of infarct in new vascular territory, outside the baseline target occlusion(s) on follow up CT and MRI. INT’s were classified by maximum diameter (<2mm, 2-20mm and >20mm) and location. Results: Of 1099 analyzed patients in ESCAPE NA1, 107 had INT (9.7%, mean age 67 years, 51.4% females). There were no differences at baseline in those with vs without INT. Most INTs (75.7%) were angiographically occult and 41(38.3%) were > 20mm. The most common INT territory was the ACA alone or in combination with MCA/PCA (30.3%). The presence of emboli in new territory angiographically was significantly associated with INT (OR 16.39, 95%CI 8.14-33.09). Alteplase use, balloon guide catheter use, nerinetide and initial occlusion site did not predict INT. INT patients had higher final median infarct volumes compared to non-INT (44.5cc vs 23.3cc, P<0.001). Large INT (diameter of >20mm) were associated with poor clinical outcome compared to INT (<2mm) OR (mRS 0-2) 0.17, 95%CI 0.05-0.55). Conclusion: Infarcts in new territory are common and are associated with poor outcome.

Abstract WMP17: Early DWI Reversal Following Endovascular Reperfusion Is Typically Transient

Stroke ◽  
2013 ◽  
Vol 44 (suppl_1) ◽  
Author(s):  
Manabu Inoue ◽  
Hayley M Wheeler ◽  
Michael Mlynash ◽  
Aaryani Tipirneni ◽  
Matus Straka ◽  
...  
Keyword(s):  
Clinical Outcome ◽  
Endovascular Therapy ◽  
Independent Predictor ◽  
Infarct Volume ◽  
Prognostic Significance ◽  
Reperfusion Therapy ◽  
Ischemic Lesion ◽  
Stroke Treatment ◽  
Median Volume

Background and Purpose: There are conflicting reports regarding the incidence and prognostic significance of DWI reversal following reperfusion therapy. The aim of this study was to assess the frequency and extent of early DWI reversal following endovascular therapy and to determine if early reversal is sustained or transient. Methods: This is a substudy of the DEFUSE 2. MRI with DWI and PWI was performed before (DWI 1) and within 12 hours after (DWI 2) endovascular stroke treatment and again at 5 days. Acute DWI lesions were outlined and quantified using mipav software (http://mipav.cit.nih.gov/). Ischemic lesion volumes were outlined on the Day 5 FLAIR then corrected for edema using a validated technique to determine the final infarct volume. Early DWI reversal was defined as (DWI 1 - DWI 2) >3 ml and permanent DWI reversal was defined (DWI 1 - final infarct volume) > 1 ml. Reperfusion was defined as a >50% reduction in PWI volume (Tmax >6 sec) on the MRI performed after endovascular therapy. The prognostic significance of early reversal was assessed in a regression model. Results: 104 patients had a technically adequate DWI and PWI prior to endovascular therapy (performed 4.4 [3.0-6.0] hours after symptom onset). Of these, 77 had an acute DWI lesion >3 ml and a follow-up MRI (156 min [72-342] after completion of endovascular therapy) and a 5 day MRI. Seventeen percent (13/77) of the patients had early DWI reversal representing a median (IQR) of 42.4% (25.0-57.6) of the initial DWI lesion (median volume 10.9 ml [IQR 7.3-18.2]). The incidence of early DWI reversal was 21% (11/52) following reperfusion vs. 8% (2/25) in patients who did not reperfuse (p=0.20). Of the 13 patients with early DWI reversal, permanent DWI reversal occurred in only 2 (volume of permanent DWI reversal 6.9 ml and 4.7 ml). Early DWI reversal was not an independent predictor of clinical outcome. Conclusion: Early DWI reversal occurs in about 15-20% of patients following endovascular therapy and can involve a substantial percentage of the initial DWI volume. However, early DWI reversal is usually transient and does not appear to signify tissue salvage.

Abstract TP66: Single Slice Maximal Lesion Diameter Predicts Malignant Pattern of Diffusion Lesions in Acute Ischemic Stroke

Stroke ◽  
2016 ◽  
Vol 47 (suppl_1) ◽  
Author(s):  
Anke Wouters ◽  
Patrick Dupont ◽  
Anna Kufner ◽  
Robin Lemmens ◽  
Vincent Thijs
Keyword(s):  
Clinical Outcome ◽  
Intravenous Thrombolysis ◽  
Volumetric Analysis ◽  
Maximum Diameter ◽  
Lesion Volume ◽  
Imaging Data ◽  
Poor Clinical Outcome ◽  
Lesion Diameter ◽  
Single Slice ◽  
Lesion Extension

Introduction: Recent endovascular trials excluded patients with large ischemic cores on diffusion-weighted imaging (DWI) or perfusion CT using automated volumetric analysis. Hypothesis: We investigated whether the largest diameter of the DWI lesion measured on a single slice could accurately predict large ischemic cores, as defined by automated volumetric analysis; such findings could result in a simple tool for predicting clinical outcome. Methods: Magnetic resonance imaging data from the multicenter AXIS 2-trial were used. Patients were included within 9h of symptom onset and received intravenous thrombolysis if eligible. The maximum diameter of the diffusion lesion was measured on the slice with the largest lesion extension. Maximum diameters on a single slice were compared with the volumes of > 50 ml, >70ml and >100ml determined by standard volumetric analysis. We also assessed whether and for which threshold, largest lesion diameter was a predictor of poor clinical outcome defined as modified ranking scale (mRS) 5 or 6. Results: A total of 304 patients were included of which 50 (16%) presented with a carotid occlusion. 96 (32%) patients had a DWI-volume of more than 50 ml, 63 (21%) more than 70ml and 46 (15%) more than 100ml. A diameter of respectively 5.5, 6.5 and 7 cm on a single slice with the largest lesion extension was the best predictor of a DWI lesion volume of more than 50 (sensitivity (sens) 97%, specificity (spec) 80%), 70 (sens 95%, spec 83%) and 100ml (sens 100%, spec 85%). The maximum diameter was a reasonable predictor of poor clinical outcome with an AUC of 0.76 (95%CI: 0.68-0.83). The optimal cut off point was found to be 5.5 cm (sens 71%, spec 67%). Conclusion: Measuring the maximum lesion diameter on a single slice on DWI identifies patients with large ischemic cores with a high sensitivity and specificity. This finding can be useful in clinical practice and for future clinical trials where rapid and uniform decision making to exclude patients with a malignant profile from endovascular therapy is essential.

scholarly journals Acute Ischemic Stroke in Late Pregnancy Treated with Intravenous Thrombolysis and Endovascular Therapy

2019 ◽  
Vol 11 (1) ◽  
pp. 41-46 ◽  
Author(s):  
Eva Szuchy Kristiansen ◽  
Hannah Holm Vestergaard ◽  
Boris Modrau ◽  
Lorenz Martin Oppel
Keyword(s):  
Ischemic Stroke ◽  
Clinical Outcome ◽  
Acute Ischemic Stroke ◽  
Endovascular Therapy ◽  
Intravenous Thrombolysis ◽  
Late Pregnancy ◽  
Exclusion Criterion ◽  
Good Clinical Outcome ◽  
Systemic Thrombolysis ◽  
In Pregnancy

Pregnancy has usually been an exclusion criterion in clinical trials with thrombolysis and endovascular therapy in acute ischemic stroke. For that reason, these therapies are not recommended causing lack of evidence and vice versa. In this case report, we describe a pregnant woman in week 33 + 3 presenting with acute ischemic stroke, which was successfully treated with systemic thrombolysis and endovascular therapy, resulting in a good clinical outcome for both mother and child. The altered fibrinolytic system and the risk factors related to pregnancy constitute a challenge for clinicians when choosing the most suitable treatment modality for treating acute ischemic stroke in pregnancy. It is still uncertain whether thrombolysis in combination with endovascular therapy or endovascular therapy alone is the most appropriate treatment option. However, there is slowly growing evidence that thrombolysis and thrombectomy in pregnancy are feasible and safe with a good clinical outcome for both the mother and the child.

scholarly journals Revascularization of tandem occlusions in acute ischemic stroke: review of the literature and illustrative case

2017 ◽  
Vol 42 (4) ◽  
pp. E15 ◽  
Author(s):  
Nnenna Mbabuike ◽  
Kelly Gassie ◽  
Benjamin Brown ◽  
David A. Miller ◽  
Rabih G. Tawk
Keyword(s):  
Ischemic Stroke ◽  
Clinical Outcome ◽  
Acute Ischemic Stroke ◽  
Endovascular Therapy ◽  
Carotid Occlusion ◽  
Illustrative Case ◽  
Retrograde Approach ◽  
Nihss Score ◽  
Tandem Occlusion ◽  
Pubmed Database

OBJECTIVE Tandem occlusions continue to represent a major challenge in patients with acute ischemic stroke (AIS). The anterograde approach with proximal to distal revascularization as well as the retrograde approach with distal to proximal revascularization have been reported without clear consensus or standard guidelines. METHODS The authors performed a comprehensive search of the PubMed database for studies including patients with carotid occlusions and tandem distal occlusions treated with endovascular therapy. They reviewed the type of approach employed for endovascular intervention and clinical outcomes reported with emphasis on the revascularization technique. They also present an illustrative case of AIS and concurrent proximal cervical carotid occlusion and distal middle cerebral artery occlusion from their own experience in order to outline the management dilemma for similar cases. RESULTS A total of 22 studies were identified, with a total of 790 patients with tandem occlusions in AIS. Eleven studies used the anterograde approach, 3 studies used the retrograde approach, 4 studies used both, and in 4 studies the approach was not specified. In the studies that reported Thrombolysis in Cerebral Infarction (TICI) grades, an average of 79% of patients with tandem occlusions were reported to have an outcome of TICI 2b or better. One study found good clinical outcome in 52.5% of the thrombectomy-first group versus 33.3% in the stent-first group, as measured by the modified Rankin Scale (mRS). No study evaluated the difference in time to reperfusion for the anterograde and retrograde approach and its association with clinical outcome. The patient in the illustrative case had AIS and tandem occlusion of the internal carotid and middle cerebral arteries and underwent distal revascularization using a Solitaire stent retrieval device followed by angioplasty and stent treatment of the proximal cervical carotid occlusion. The revascularization was graded as TICI 2b; the postintervention National Institutes of Health Stroke Scale (NIHSS) score was 17, and the discharge NIHSS score was 7. The admitting, postoperative, and 30-day mRS scores were 5, 1, and 1, respectively. CONCLUSIONS In stroke patients with tandem occlusions, distal to proximal revascularization represents a reasonable treatment approach and may offer the advantage of decreased time to reperfusion, which is associated with better functional outcome. Further studies are warranted to determine the best techniques in endovascular therapy to use in this subset of patients in order to improve clinical outcome.

scholarly journals Total Hip Arthroplasty Using Imageless Computer-Assisted Navigation—2-Year Follow-Up of a Prospective Randomized Study

2020 ◽  
Vol 9 (6) ◽  
pp. 1620
Author(s):  
Richard Lass ◽  
Boris Olischar ◽  
Bernd Kubista ◽  
Thomas Waldhoer ◽  
Alexander Giurea ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Clinical Outcome ◽  
Hip Arthroplasty ◽  
Important Determinant ◽  
Randomized Study ◽  
Prospective Randomized Study ◽  
Computer Assisted ◽  
Total Hip ◽  
Significant Difference

The purpose of this study is to compare computer-assisted to manual implantation-techniques in total hip arthroplasty (THA) and to find out if the computer-assisted surgery is able to improve the clinical and functional results and reduce the dislocation rate in short-terms after THA. We performed a concise minimum 2-year follow-up of the patient cohort of a prospective randomized study published in 2014 and evaluated if the higher implantation accuracy in the navigated group can be seen as an important determinant of success in total hip arthroplasty. Although a significant difference was found in mean postoperative acetabular component anteversion and in the outliers regarding inclination and anteversion (p < 0.05) between the computer-assisted and the manual-placed group, we could not find significant differences regarding clinical outcome or revision rates at 2-years follow-up. The implantation accuracy in the navigated group can be regarded as an important determinant of success in THA, although no significant differences in clinical outcome could be detected at short-term follow-up. Therefore, further long-term follow-up of our patient group is needed.

scholarly journals Long-Term Outcomes of Mechanical Thrombectomy for Stroke: A Meta-Analysis

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
David J. McCarthy ◽  
Anthony Diaz ◽  
Dallas L. Sheinberg ◽  
Brian Snelling ◽  
Evan M. Luther ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Endovascular Therapy ◽  
Mechanical Thrombectomy ◽  
Meta Analysis ◽  
Functional Independence ◽  
Long Term Outcomes ◽  
Long Term Follow Up ◽  
Mr Clean

Mechanical thrombectomy (MT) has become the standard treatment for large vessel occlusion (LVO) in acute ischemic stroke (AIS). Few studies have investigated long-term outcomes for AIS treated with MT. Therefore, a pooled meta-analysis using data from randomized clinical trials (RCT) was performed to assess for long-term clinical outcomes. A systematic literature search was conducted on 27 September 2017, by searching the English literature in the Cochrane Library, MEDLINE, and Embase for RCTs investigating long-term outcomes (greater than standard 3-month timepoint) of endovascular intervention versus medical management for patients with AIS. The study was carried out according to PRISMA guidelines and random effects analysis was carried out to account for heterogeneity. Three trials were included: IMS III, MR CLEAN, and REVASCAT, comprising a total of 1,362 patients. Long-term clinical outcomes were available for 1-year follow-up in IMS III and REVASCAT and at 2 years in MR CLEAN. Functional independence at long-term follow-up favored endovascular stroke intervention (OR 1.51; p = 0.02). When stratified by LVO inclusion criteria, greater endovascular functional independence benefits were observed (OR 1.85; p = 0.0005). There was a significant difference between the 2 arms in favor of endovascular therapy for the quality of life at long-term follow-up (mean difference 0.11; p = 0.0002). No difference in mortality at long-term follow-up was observed (OR 0.82; p = 0.12). We conclude that endovascular therapy results in favorable outcomes at long-term follow-up for patients with acute ischemic stroke compared to standard medical treatment alone and that the 90-day timepoint offers a fair representation of the long-term outcomes.

scholarly journals Visceral Artery Aneurysms and Pseudoaneurysms: Retrospective Analysis of Interventional Endovascular Therapy of 43 Aneurysms

2017 ◽  
Vol 189 (07) ◽  
pp. 632-639 ◽  
Author(s):  
Hannes Ruhnke ◽  
Thomas Kröncke
Keyword(s):  
Endovascular Therapy ◽  
Emergency Situation ◽  
Active Bleeding ◽  
Maximum Diameter ◽  
Embolic Agent ◽  
Visceral Artery ◽  
Visceral Artery Aneurysms ◽  
Elective Treatment ◽  
Liquid Embolic Agent

Purpose To evaluate the results of interventional endovascular therapy of incidental and symptomatic visceral artery aneurysms in the elective and emergency situation. Materials and Methods 43 aneurysms in 38 patients (19 female, 19 male, mean age: 57 ± 16 years [18 – 82]) were treated between 2011 and 2015. The characteristics of the aneurysms (true vs. false aneurysm, size, etiology, location, symptoms) were considered. Furthermore, we evaluated the intervention with respect to technical success, embolic/occlusive agents used, therapy-associated complications and post-interventional follow-up.  Results 23 true aneurysms (maximum diameter: 22 ± 18 mm [11 – 67 mm]) and 20 false aneurysms (maximum diameter: 9 ± 33 mm [3 – 150 mm]) were evaluated. The splenic (n = 14) and renal arteries (n = 18) were most frequently affected. The etiology was most commonly degenerative-atherosclerotic (47 %) or iatrogenic post-operative (19 %). 18/48 interventions were performed due to active bleeding. False aneurysms were associated significantly more often with active bleeding (63 vs. 25 %, p = 0.012). 41/48 treatments were technically successful. Re-intervention was necessary 6 times. In 2 cases the endovascular approach did not succeed. There was a complication rate of 10 %, whereby only 4 minor and 1 major complications occurred. No patient suffered from permanent sequelae. Aneurysms were primarily treated by using coils and if necessary additional embolic agents (liquid embolic agent or vascular plugs) (75 %). In the follow-up period, reperfusion of treated aneurysms occurred at a rate of 7 % (n = 3). Conclusion Interventional endovascular therapy of visceral artery aneurysms is safe and effective in the elective treatment of incidental aneurysms as well as in significantly more frequent hemorrhaging false aneurysms in the emergency situation. Key points  Citation Format

scholarly journals RAS, FMS and p53 mutations and poor clinical outcome in myelodysplasias: a 10-year follow-up

Leukemia ◽  
1998 ◽  
Vol 12 (6) ◽  
pp. 887-892 ◽  
Author(s):  
RA Padua ◽  
B-A Guinn ◽  
AI Al-Sabah ◽  
M Smith ◽  
C Taylor ◽  
...  
Keyword(s):  
Clinical Outcome ◽  
P53 Mutations ◽  
Poor Clinical Outcome

Anesthetic strategy during endovascular therapy: General anesthesia or conscious sedation? (GOLIATH – General or Local Anesthesia in Intra Arterial Therapy) A single-center randomized trial

2016 ◽  
Vol 11 (9) ◽  
pp. 1045-1052 ◽  
Author(s):  
Claus Z Simonsen ◽  
Leif H Sørensen ◽  
Niels Juul ◽  
Søren P Johnsen ◽  
Albert J Yoo ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
General Anesthesia ◽  
Randomized Trial ◽  
Acute Ischemic Stroke ◽  
Endovascular Therapy ◽  
Randomized Clinical Trials ◽  
Conscious Sedation ◽  
Randomized Study ◽  
Single Center ◽  
Vessel Occlusion

Rationale Endovascular therapy after acute ischemic stroke due to large vessel occlusion is now standard of care. There is equipoise as to what kind of anesthesia patients should receive during the procedure. Observational studies suggest that general anesthesia is associated with worse outcomes compared to conscious sedation. However, the findings may have been biased. Randomized clinical trials are needed to determine whether the choice of anesthesia may influence outcome. Aim and hypothesis The objective of GOLIATH (General or Local Anestesia in Intra Arterial Therapy) is to examine whether the choice of anesthetic regime during endovascular therapy for acute ischemic stroke influence patient outcome. Our hypothesis is that that conscious sedation is associated with less infarct growth and better functional outcome. Methods GOLIATH is an investigator-initiated, single-center, randomized study. Patients with acute ischemic stroke, scheduled for endovascular therapy, are randomized to receive either general anesthesia or conscious sedation. Study outcomes The primary outcome measure is infarct growth after 48–72 h (determined by serial diffusion-weighted magnetic resonance imaging). Secondary outcomes include 90-day modified Rankin Scale score, time parameters, blood pressure variables, use of vasopressors, procedural and anesthetic complications, success of revascularization, radiation dose, and amount of contrast media. Discussion Choice of anesthesia may influence outcome in acute ischemic stroke patients undergoing endovascular therapy. The results from this study may guide future decisions regarding the optimal anesthetic regime for endovascular therapy. In addition, this study may provide preliminary data for a multicenter randomized trial.

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