scholarly journals Recanalization of Emergent Large Intracranial Vessel Occlusion through Intravenous Thrombolysis: Frequency, Clinical Outcome, and Reperfusion Pattern

2019 ◽  
Vol 48 (3-6) ◽  
pp. 115-123
Author(s):  
Carmen Serna Candel ◽  
Marta Aguilar Pérez ◽  
Victoria Hellstern ◽  
Muhammad AlMatter ◽  
Hansjörg Bäzner ◽  
...  

Background: According to a recent meta-analysis, 1 out of 10 patients with emergent large intracranial vessel occlusion (ELVO) causing stroke have recanalization after intravenous thrombolysis (IVT) alone. However, rate, clinical outcome, and recanalization pattern of this phenomenon are poorly understood. Objectives and Methods: Patients with ELVO recanalized only by IVT were analyzed, and frequency of recanalization, clinical outcome, safety variables, and reperfusion pattern were assessed. These patients were compared to a group of patients with ELVO who underwent endovascular thrombectomy with or without prior IVT. Results: Successful or sufficient recanalization after IVT alone occurred in 81 of 760 patients (10.6%) with ELVO who had been referred for endovascular thrombectomy. These 81 patients (group 1) were compared to a group of patients receiving endovascular thrombectomy with prior IVT (group 2) or without (group 3). A good clinical outcome at 90 days was seen in 61.7% of patients in group 1, 32.2% in group 2, and 34.5% in group 3 (p < 0.001). The 3 groups had no significant differences in intracranial hemorrhage. IVT was not independently associated with symptomatic intracranial hemorrhage, parenchymal hematoma, or subarachnoid hemorrhage. Mortality at 90 days was 9.9% in group 1, 20.7% in group 2, and 29.6% in group 3 (p < 0.001). After adjusting for all relevant variables, outcome and mortality differences were nonsignificant. No difference in the rate of successful reperfusion (modified treatment in cerebral ischemia [mTICI] 2b/3) was found. A reperfusion mTICI 3 was achieved in 18.5% in group 1, 60.7% in group 2, and 57.1% in group 3 (p < 0.001). Patients in group 1 had lower chance of achieving a complete recanalization (mTICI 3) compared to patients in group 2, OR 0.15 (95% CI 0.08–0.29) and in group 3, OR 0.17 (95% CI 0.09–0.32; p < 0.001). Conclusions: Primary IVT in ELVO caused a recanalization rate of 10.6%, making endovascular treatment either unnecessary or impossible. Early recanalization of ELVO with only IVT is associated with a 61.7% independence rate at 90 days and similar successful reperfusion rates (mTICI2b/3) compared to ELVO treated with endovascular treatment, with or without previous IVT. However, recanalization only through IVT achieves a lower rate of mTICI 3 reperfusion when compared to endovascular treatment.

Stroke ◽  
2016 ◽  
Vol 47 (suppl_1) ◽  
Author(s):  
Timo Uphaus ◽  
Oliver C Singer ◽  
Joachim Berkefeld ◽  
Christian H Nolte ◽  
Georg Bohner ◽  
...  

Introduction: The endovascular treatment (EVT) of cerebral ischemia in the case of large vessel occlusion has been established over recent years. Randomized trials showed a positive impact on the clinical outcome of endovascular treatment in addition to thrombolysis with respect to clinical outcome and safety, so that this therapeutic option will be implemented in future guidelines. The role of EVT in patients treated with oral anticoagulants remains uncertain. Hypothesis: We assessed the hypothesis that application of EVT is safe with regard to the occurrence of intracranial bleeding and clinical outcome in patients taking anticoagulants. Methods: The ENDOSTROKE-Registry is a commercially independent, prospective observational study in 12 stroke centers in Germany and Austria launched in January 2011. An online tool served for data acquisition of pre-specified variables concerning endovascular stroke therapy. Results: Data from 815 patients (median age 70, 57% male) undergoing EVT and known anticoagulation status were analyzed. A total of 85 (median age 76, 52% male) patients (10.4%) took oral anticoagulants prior to EVT. Anticoagulation status as measured with INR was 2.0-3.0 in 24 patients (29%), <2.0 in 52 patients (63%) and above 3.0 in 7 patients (8%) of 83 patients with valid INR data prior to EVT. Patients taking anticoagulants were significantly older (median age 76 vs. 69, p < 0.001). Comparing those patients taking anticoagulants and those not, there were no differences concerning NIHSS at admission (with anticoagulants Median-NIHSS 17 vs. without Median-NIHSS 15, p = 0.492, Mann Whitney Test) and the rate of intracranial hemorrhage after intervention (with anticoagulants 11.8% vs. without 12.2%, p = 0.538). After adjustment for age and NIHSS at admission there were no significant differences between the two groups with regard to good clinical outcome, as measured with the modified ranking scale (mRS, 90d-mRS 0-2, 39.2% of patients not receiving anticoagulants; 25.9% of those receiving anticoagulants). Conclusion: The application of endovascular treatment in patients taking oral anticoagulants is safe and should be considered in acute stroke treatment as an important alternative to contraindicated intravenous thrombolysis.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
L Di Serafino ◽  
H Gamra ◽  
P Cirillo ◽  
M Zimarino ◽  
I J Amat-Santos ◽  
...  

Abstract Background Duration of Dual Antiplatelet Therapy (DAPT) following Acute Coronary Syndromes (ACS) or Stable Coronary Artery Disease (SCAD) treated with coronary stenting is still debated. Although current guidelines consider several “clinical” criteria to decide for short DAPT (<6 months), standard DAPT (12 months) and prolonged DAPT (>12 months), the relationship between DAPT duration, treatment of bifurcations and its impact on clinical outcome has been poorly investigated in real world registries. Purpose We evaluated the impact of DAPT duration on clinical outcomes in consecutive all-comers patients treated with stenting of coronary artery bifurcation lesions included in the Euro Bifurcation Club -P2BiTO - registry. Methods Data on 5036 consecutive patients who underwent PCI on coronary bifurcation at 17 major coronary intervention centres between January 2012 and December 2014 were collected. The primary endpoint of the study was the cumulative occurrence of Major Adverse Cardiac Events (MACCE), defined as a composite of overall-death death, non-fatal myocardial infarction (MI), target vessel revascularization (TVR) and stroke during the follow-up; the secondary endpoints were the single occurrence of any of the above mentioned events. Results Data on DAPT duration was available for 3992 patients (79%). Patients were divided into 3 groups: Group 1) DAPT <6-months (n=720); Group 2) DAPT >6-months but <12-month (n=1602); Group 3) DAPT >12-months (n=1670). Follow up was completed in 3935 (98%) patients with a median of 20 months (C.I.=12–28). At 24 months after the index procedure, MACCE occurred more frequently in the DAPT <6-month group (Group 1) as compared with both Group 2 and 3 (respectively, 102 (14%) versus 154 (10%) and 164 (10%), HR: 0.72 (0.64–0.82), p<0.001). This difference remains after adjustment for clinical and angiographic characteristics (HR: 0.66 (0.58–0.77), p<0.001). On the contrary, no significant difference was found between Group 2 and Group 3 patients. At the Kaplan-Meier analysis (Figure 1), freedom from MACCE survival was significantly lower in patients receiving DAPT for less than 6 months (Log-Rank: 29.5, p<0.001). Figure 1. Kaplan-Meier curves Conclusions In the P2BiTO registry, short DAPT duration of less than 6 months was associated with a significantly higher risk of MACCE compared to longer DAPT in a real-world registry of patients treated for coronary artery bifurcation stenosis.


Stroke ◽  
2012 ◽  
Vol 43 (suppl_1) ◽  
Author(s):  
Amin Aghaebrahim ◽  
Carlos Leiva-Salinas ◽  
Syed Zaidi ◽  
Mouhammad Jumaa ◽  
Xabi Urra ◽  
...  

Objective: Patients with wake-up stroke are thought to have different outcomes compared to patients with known late time of onset. We thought to verify this hypothesis by determining clinical outcomes, mortality and rate of parenchymal hematoma (PH) in patients with anterior circulation large vessel occlusion stroke (ACLVOS) treated with endovascular therapy at our center. Methods: Retrospective review of a prospectively acquired database from consecutive patients meeting the following criteria: (1) ACLVOS, (2) endovascular treatment initiated beyond 8hrs from time last seen well (TLSW). Treatment selection was based on the presence of a small infarct core/large penumbra assessed through visual inspection on MRI or CTP by the treating physician. In patients undergoing MRI (n=55) pre-procedure infarct volumes on DWI were measured through automated volumetric analysis. Results: We identified 130 patients (mean age 64; mean baseline NIHSS 14, male gender 55%). Patients were divided into three groups. Group 1: patients with wake-up stroke (39%, n=51). Group 2: patients with witnessed onset beyond 8hrs from TLSW (55%, n=72). Group 3: patients without witnessed onset but TLSW>8hrs (5%, n=7). Occlusion locations were as follows: M1-55%, M2-12%, ICA terminus-32% and ICA origin (tandem occlusion)-28%. Successful recanalization (TIMI 2/3) was achieved in 109 patients (84%). The rate of 90 day favorable outcome (modified Rankin score (mRS) ≤ 2) was 55% (n=68/124). PH occurred in 15/130 (12%) patients and the 3 month mortality rate was 18% (n= 22/124). Favorable outcome rates amongst Group 1 (50%, n=24/48), Group 2 (59.5%, n=41/69) and Group 3 (42.9%, n=3/7) were not significantly different (p=0.49, by ANOVA). Mean pre-procedure DWI lesion volume was 18.7 cc in Group 1 vs. 18.3 cc in group 2 (p=0.9). No difference was noted between Group 1, Group 2 and Group3 regarding PH (13.7%, 8.3%, 13.3% respectively, p nonsignificant) or mortality at 3 months (18.7%, 17.4%, 14.3% respectively, p nonsignificant). Multivariate logistic regression model identified only successful recanalization (OR 2.9, p 0.001, CI 1.59-5.44) and age (OR 0.96, p 0.03, CI 0.93-0.99) as predictors of favorable outcome. Conclusion: In patients with ACLVOS presenting beyond 8 hours from TLSW who are selected based on similar imaging characteristics, clinical outcomes following endovascular treatment do not seem to differ according to mode of presentation relative to TLSW.


Stroke ◽  
2020 ◽  
Vol 51 (7) ◽  
pp. 2051-2057 ◽  
Author(s):  
Ilaria Casetta ◽  
Enrico Fainardi ◽  
Valentina Saia ◽  
Giovanni Pracucci ◽  
Marina Padroni ◽  
...  

Background and Purpose: To evaluate outcome and safety of endovascular treatment beyond 6 hours of onset of ischemic stroke due to large vessel occlusion in the anterior circulation, in routine clinical practice. Methods: From the Italian Registry of Endovascular Thrombectomy, we extracted clinical and outcome data of patients treated for stroke of known onset beyond 6 hours. Additional inclusion criteria were prestroke modified Rankin Scale score ≤2 and ASPECTS score ≥6. Patients were selected on individual basis by a combination of CT perfusion mismatch (difference between total hypoperfusion and infarct core sizes) and CT collateral score. The primary outcome measure was the score on modified Rankin Scale at 90 days. Safety outcomes were 90-day mortality and the occurrence of symptomatic intracranial hemorrhage. Data were compared with those from patients treated within 6 hours. Results: Out of 3057 patients, 327 were treated beyond 6 hours. Their mean age was 66.8±14.9 years, the median baseline National Institutes of Health Stroke Scale 16, and the median onset to groin puncture time 430 minutes. The most frequent site of occlusion was middle cerebral artery (45.1%). Functional independence (90-day modified Rankin Scale score, 0–2) was achieved by 41.3% of cases. Symptomatic intracranial hemorrhage occurred in 6.7% of patients, and 3-month case fatality rate was 17.1%. The probability of surviving with modified Rankin Scale score, 0–2 (odds ratio, 0.58 [95% CI, 0.43–0.77]) was significantly lower in patients treated beyond 6 hours as compared with patients treated earlier No differences were found regarding recanalization rates and safety outcomes between patients treated within and beyond 6 hours. There were no differences in outcome between people treated 6-12 hours from onset (278 patients) and those treated 12 to 24 hours from onset (49 patients). Conclusions: This real-world study suggests that in patients with large vessel occlusion selected on the basis of CT perfusion and collateral circulation assessment, endovascular treatment beyond 6 hours is feasible and safe with no increase in symptomatic intracranial hemorrhage.


Author(s):  
Yasemin Gunduz ◽  
Alper Karacan ◽  
Oguz Karabay ◽  
Ali Fuat Erdem ◽  
Osman Kindir ◽  
...  

Aim: Initial chest CT findings of patients were compared by grouping them according to the clinical outcome of the infection and those which could predict clinical outcome, prognosis and mortality were investigated. Background: Published studies on chest CT in COVID-19 infection do not go beyond describing the characteristics of the current period. Nevertheless, comparative analysis of chest CT findings on hospital admission among patients in different clinical outcomes is scarce. Objective: 198 consecutive symptomatic patients with COVID-19 infection confirmed by positive polymerase chain reaction (PCR) and who had undergone chest CT were enrolled in this retrospective study. Method: According to their clinical outcomes, we divided them (n:98) into 3 groups. Group 1 (n: 62) involved patients discharged from the service, group 2 (n: 60) included patients hospitalized in the intensive care unit, and group 3 (n: 76) comprised patients who died despite any treatment. Method: According to their clinical outcomes, we divided them (n:98) into 3 groups. Group 1 (n: 62) involved patients discharged from the service, group 2 (n: 60) included patients hospitalized in the intensive care unit, and group 3 (n: 76) comprised patients who died despite any treatment. Results: Clinical characteristics involving age, dyspnea, hypertension, and chest CT findings of mediastinal lymphadenopathy, pleural effusion, and pericardial effusion, were determined as poor prognosis and mortality predictors, and halo sign in chest CT finding was a good prognosis predictor in multivariate analysis. Conclusion: It was seen that some CT findings were significantly correlated to the patients' endpoints, such as discharge, hospitalization in the intensive care unit, and as a worst consequence, death. These findings support the role of CT imaging for potentially predicting the clinical outcomes of these patients with COVID-19.


Author(s):  
Johannes M. Weller ◽  
Julius N. Meissner ◽  
Sebastian Stösser ◽  
Franziska Dorn ◽  
Gabor C. Petzold ◽  
...  

Abstract Purpose Intravenous thrombolysis and mechanical thrombectomy (MT) are standard of care in patients with acute ischemic stroke due to large vessel occlusion. Data on MT in patients with intracranial hemorrhage prior to intervention is limited to anecdotal reports, as these patients were excluded from thrombectomy trials. Methods We analyzed patients from an observational multicenter cohort with acute ischemic stroke and endovascular treatment, the German Stroke Registry—Endovascular Treatment trial, with intracranial hemorrhage before MT. Baseline characteristics, procedural parameters and functional outcome at 90 days were analyzed and compared to a propensity score matched cohort. Results Out of 6635 patients, we identified 32 patients (0.5%) with acute ischemic stroke due to large vessel occlusion and preinterventional intracranial hemorrhage who underwent MT. Risk factors of intracranial hemorrhage were head trauma, oral anticoagulation and intravenous thrombolysis. Overall mortality was high (50%) but among patients with a premorbid modified Rankin scale (mRS) of 0–2 (n = 15), good clinical outcome (mRS 0–2) at 90 days was achieved in 40% of patients. Periprocedural and outcome results did not differ between patients with and without preinterventional intracranial hemorrhage. Conclusion Preinterventional intracranial hemorrhage in acute ischemic stroke patients with large vessel occlusion is rare. The use of MT is technically feasible and a substantial number of patients achieve good clinical outcome, indicating that MT should not be withheld in patients with preinterventional intracranial hemorrhage.


VASA ◽  
2020 ◽  
Vol 49 (4) ◽  
pp. 281-284
Author(s):  
Atıf Yolgosteren ◽  
Gencehan Kumtepe ◽  
Melda Payaslioglu ◽  
Cuneyt Ozakin

Summary. Background: Prosthetic vascular graft infection (PVGI) is a complication with high mortality. Cyanoacrylate (CA) is an adhesive which has been used in a number of surgical procedures. In this in-vivo study, we aimed to evaluate the relationship between PVGI and CA. Materials and methods: Thirty-two rats were equally divided into four groups. Pouch was formed on back of rats until deep fascia. In group 1, vascular graft with polyethyleneterephthalate (PET) was placed into pouch. In group 2, MRSA strain with a density of 1 ml 0.5 MacFarland was injected into pouch. In group 3, 1 cm 2 vascular graft with PET piece was placed into pouch and MRSA strain with a density of 1 ml 0.5 MacFarland was injected. In group 4, 1 cm 2 vascular graft with PET piece impregnated with N-butyl cyanoacrylate-based adhesive was placed and MRSA strain with a density of 1 ml 0.5 MacFarland was injected. All rats were scarified in 96th hour, culture samples were taken where intervention was performed and were evaluated microbiologically. Bacteria reproducing in each group were numerically evaluated based on colony-forming unit (CFU/ml) and compared by taking their average. Results: MRSA reproduction of 0 CFU/ml in group 1, of 1410 CFU/ml in group 2, of 180 200 CFU/ml in group 3 and of 625 300 CFU/ml in group 4 was present. A statistically significant difference was present between group 1 and group 4 (p < 0.01), between group 2 and group 4 (p < 0.01), between group 3 and group 4 (p < 0.05). In terms of reproduction, no statistically significant difference was found in group 1, group 2, group 3 in themselves. Conclusions: We observed that the rate of infection increased in the cyanoacyrylate group where cyanoacrylate was used. We think that surgeon should be more careful in using CA in vascular surgery.


1984 ◽  
Vol 52 (03) ◽  
pp. 253-255 ◽  
Author(s):  
C Isles ◽  
G D O Lowe ◽  
B M Rankin ◽  
C D Forbes ◽  
N Lucie ◽  
...  

SummaryWe have previously shown abnormalities of haemostasis suggestive of intravascular coagulation in patients with malignant hypertension, a condition associated with retinopathy and renal fibrin deposition. To determine whether such abnormalities are specific to malignant hypertension, we have measured several haemostatic and haemorheological variables in 18 patients with malignant hypertension (Group 1), 18 matched healthy controls (Group 2), and 18 patients with non-malignant hypertension (Group 3) matched for renal pathology, blood pressure and serum creatinine with Group 1. Both Groups 1 and 3 had increased mean levels of fibrinogen, factor VIIIc, beta-thrombo- globulin, plasma viscosity and blood viscosity (corrected for haematocrit); and decreased mean levels of haematocrit, antithrombin III and platelet count. Mean levels of fast antiplasmin and alpha2-macroglobulin were elevated in Group 1 but not in Group 3. We conclude that most blood abnormalities are not specific to malignant hypertension; are also present in patients with non-malignant hypertension who have similar levels of blood pressure and renal damage; and might result from renal damage as well as promoting further renal damage by enhancing fibrin deposition. However increased levels of fibrinolytic inhibitors in malignant hypertension merit further investigation in relation to removal of renal fibrin.


2020 ◽  
pp. 64-75
Author(s):  
E. Burleva ◽  
O. Smirnov ◽  
S. Tyurin

The purpose of the study was to conduct a comparative assessment of the course of the postoperative period after phlebectomy and thermal ablation in patients with varicose veins of the lower extremities in the system of the great saphenous vein (GSV) with class C2 of chronic venous insufficiency (CVI) — CEAP class C2. Materials and methods: 455 patients (455 limbs) with CEAP class C2. Group 1 (n = 154) received stripping + minimally invasive phlebectomy; Group 2 — endovenous laser ablation (EVLA) of GSV trunk + sclerotherapy of varicose veins; 3 group (n = 150) — radiofrequency ablation (RFA) of the GSV + sclerotherapy. All patients were united by a single tactical solution — the elimination of pathological vertical reflux in GSV. In each group, patients were with similar hemodynamic profile were selected (Group 1 = 63; Group 2 = 61; Group 3 = 61). The course of the postoperative period (from 2 days to 2 months) was compared for pain (visual analog scale — VAS), clinical symptoms of chronic venous insufficiency, degree of satisfaction (Darvall questionnaire), and duration of disability. Statistical processing was carried out using Excel programs for Windows XP, MedCalc® (version 11.4.2.0., Mariakerke, Belgium). Results: Postoperative pain is more pronounced (during day 1 for Group 1–4.0, Group 2–3.0, Group 3–2.0) and more prolonged (up to 4 days) after open surgeries (p < 0.05). The dynamics of the clinical symptoms of CVI (including varicose syndrome and use of compression therapy) could not be fully evaluated in connection with the ongoing sclerotherapy procedures for patients of Groups 2 and 3. Satisfaction of patients with aesthetic aspects was higher than expected in all groups. Reliable statistical differences proved decrease in days of disability (Group 1–14; Group 2–4; Group 3–3) and earlier return to physical activities and work in patients after thermal ablation in comparison with phlebectomy. Conclusion: The study shows that all three methods for eliminating vertical reflux in the GSV can be proposed for a large category of patients with CEAP of class C3 and C2. Medical and social rehabilitation of patients using endovascular thermal ablation technologies proceeds faster, which is beneficial both for the patients and for society.


To identify the prevalence of early pathology of cardiovascular diseases, a survey of 400 200 girls) in the age group 15 and 17 years old was conducted as a part of routine medical of the level of blood pressure (BP) was carried out, with the calculation of the average level pressure on the basis of three separate measurements estimated by percentile tables for a registration of a standard resting ECG in 12 leads. According to the results of the survey, into 3 groups: with an increase in blood pressure above 95 ‰ (group 1 – 16 people), which recorded in males (p<0,05); Group 2 (67 people) – adolescents with a normal blood pressure level and group 3 of adolescents with a decrease in blood pressure below 5 ‰ changes in the form of rhythm and conduction disturbances were noted in almost every a predominance of sinus tachycardia in the first group. In the third group of adolescents, form of ectopic rhythm and pacemaker migration were significantly more frequently only 78 % of adolescents were referred for consultation and in-depth examination by a pediatric cardiologist.


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