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Sökning: WFRF:(Nordanstig Annika)

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1.
  • Aivaz Ihari, Mahia, et al. (författare)
  • Long-term functional consequences of cranial nerve injuries after carotid endarterectomy.
  • 2022
  • Ingår i: The Journal of cardiovascular surgery. - 1827-191X. ; 63:6, s. 695-699
  • Tidskriftsartikel (refereegranskat)abstract
    • The aim of the study was to investigate long-term patient consequences of cranial nerve injury (CNI) caused by carotid endarterectomy (CEA) in patients with identified CNI at the 30-day follow-up.Consecutive patients operated for symptomatic carotid artery stenosis 2015-2019 with a documented CNI at the 30-day follow-up after CEA were recruited to this cross-sectional survey. Telephone interviews were conducted >1 year after CEA utilizing survey instruments developed to uncover CNI symptoms. Patients graded their symptoms on a 4-point scale: 1) no symptoms; 2) mild symptoms; 3) moderate symptoms; and 4) severe symptoms.Altogether, 477 patients underwent CEA, of which 82 were diagnosed with CNI; 70/82 patients remained alive at the time for the survey and 68 patients completed the interview. The mean follow-up time was 3.7 years. Severe persistent CNI symptoms were reported in 2/68 (2.9%), moderate symptoms in 1/68 (1.5%) and mild symptoms in 14/68 (21%) whereas 51/68 patients (75%) reported no residual symptoms. When extrapolating these findings to all patients, approximately 4.4% reported persistent symptoms at the long-term follow-up and only 0.8% reported moderate or severe symptoms.The long-term consequences of CNI following CEA are benign in most patients, with a high rate of symptom resolution and a very low rate of persistent clinically significant symptoms.
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2.
  • Bager, Johan-Emil, et al. (författare)
  • Long-term risk-factor control and secondary prevention are insufficient after first TIA: Results from QregPV.
  • 2023
  • Ingår i: European stroke journal. - 2396-9873 .- 2396-9881. ; 9:1, s. 154-161
  • Tidskriftsartikel (refereegranskat)abstract
    • Long-term risk-factor control and secondary prevention are not well characterized in patients with a first transient ischemic attack (TIA). With baseline levels as reference, we compared primary-care data on blood pressure (BP), low-density lipoprotein cholesterol (LDL-C), smoking, and use of antihypertensives, statins and antiplatelet treatment/oral anticoagulation (APT/OAC) during 5years after a first TIA.Patients in QregPV, a Swedish primary-care register for the Region of Västra Götaland, with a first TIA discharge diagnosis from wards proficient in stroke care 2010 to 2012 were identified and followed up to 5years. BP, LDL-C, smoking, use of antihypertensives, statins, APT/OAC, and achievement of target levels were calculated. We used logistic mixed-effect models to analyze the effect of follow-up over time on risk-factor control and secondary prevention treatment.We identified 942 patients without prior cerebrovascular disease who had a first TIA. Compared to baseline, the first year of follow-up was associated with improvements in concomitant attainment of BP <140/90mmHg, LDL-C<2.6mmol/L and non-smoking, which rose from 20% to 33% (OR 2.08, 95% CI 1.38-3.13), but then stagnated in years 2-5. In the first year of follow-up, 47% of patients had complete secondary prevention treatment (antihypertensives, APT/OAC and statin), but continued follow-up was associated with a yearly decrease in secondary prevention treatment (OR 0.94, 95% CI 0.94-0.98).Risk-factor control was inadequate, leaving considerable potential for improved secondary prevention treatment after a first TIA in Swedish patients followed up to 5years.
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3.
  • Kragsterman, Björn, et al. (författare)
  • Editor's Choice - Effect of More Expedited Carotid Intervention on Recurrent Ischaemic Event Rate: A National Audit
  • 2018
  • Ingår i: European Journal of Vascular and Endovascular Surgery. - : Elsevier BV. - 1078-5884 .- 1532-2165. ; 56:4, s. 467-474
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: The benefit of carotid endarterectomy (CEA) or stenting (CAS) for symptomatic stenosis depends on the timing in relation to the presenting event. As the risk of recurrent events is highest in the early phase, guidelines recommend a short delay. The purpose of this national audit was to study the effects of more expedient carotid intervention on the risk of recurrent ischaemic events. Methods: Data on all CEA and CAS for symptomatic stenosis, including both recurrent ischaemic events during the waiting time to carotid intervention and peri-operative 30 day complication rates, were obtained from the Swedish Vascular Registry between May 2008 and December 2015. The National Prescribed Drug Registry provided data on preventive medication prior to hospitalisation with the presenting event. The primary endpoint was a recurrent cerebral ischaemic event occurring after the presenting event up to 30 days of post-operative follow up. Results: A total of 6814 procedures for symptomatic carotid stenosis were studied. The proportion of recurrent ischaemic events, meaning all secondary events occurring after the presenting event up to 30 days follow up with inclusion of all pre- and post-intervention recurrences was recorded. These recurrent events decreased over time, from 31% in 2008-2009 to 21% in 2014-2015 (p < .01, chi-square test). In parallel, the median waiting time for carotid intervention decreased from 13 (IQR 6-27) to 7 days (IQR 4-12). Baseline demographic variables and comorbidities were similar during the study period. The proportion of pre-operative recurrences were reduced from 25% to 18% (p < .01, chi-square test) while the peri-operative stroke and/or death rate was 3.6%, and improved slightly during the study. Conclusions: A substantial reduction in the secondary ischaemic event rate was observed when the median waiting time for CEA/CAS was reduced, and this was not counterbalanced by any increase in the peri-operative complication rate. (C) 2018 European Society for Vascular Surgery. Published by Elsevier B.V. All rights reserved.
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5.
  • Candefjord, Stefan, et al. (författare)
  • Video support for prehospital stroke consultation: implications for system design and clinical implementation from prehospital simulations
  • 2024
  • Ingår i: BMC Medical Informatics and Decision Making. - 1472-6947. ; 24:1
  • Tidskriftsartikel (refereegranskat)abstract
    • BackgroundVideo consultations between hospital-based neurologists and Emergency Medical Services (EMS) have potential to increase precision of decisions regarding stroke patient assessment, management and transport. In this study we explored the use of real-time video streaming for neurologist–EMS consultation from the ambulance, using highly realistic full-scale prehospital simulations including role-play between on-scene EMS teams, simulated patients (actors), and neurologists specialized in stroke and reperfusion located at the remote regional stroke center.MethodsVideo streams from three angles were used for collaborative assessment of stroke using the National Institutes of Health Stroke Scale (NIHSS) to assess symptoms affecting patient’s legs, arms, language, and facial expressions. The aim of the assessment was to determine appropriate management and transport destination based on the combination of geographical location and severity of stroke symptoms. Two realistic patient scenarios were created, with severe and moderate stroke symptoms, respectively. Each scenario was simulated using a neurologist acting as stroke patient and an ambulance team performing patient assessment. Four ambulance teams with two nurses each all performed both scenarios, for a total of eight cases. All scenarios were video recorded using handheld and fixed cameras. The audio from the video consultations was transcribed. Each team participated in a semi-structured interview, and neurologists and actors were also interviewed. Interviews were audio recorded and transcribed.ResultsAnalysis of video-recordings and post-interviews (n = 7) show a more thorough prehospital patient assessment, but longer total on-scene time, compared to a baseline scenario not using video consultation. Both ambulance nurses and neurologists deem that video consultation has potential to provide improved precision of assessment of stroke patients. Interviews verify the system design effectiveness and suggest minor modifications.ConclusionsThe results indicate potential patient benefit based on a more effective assessment of the patient’s condition, which could lead to increased precision in decisions and more patients receiving optimal care. The findings outline requirements for pilot implementation and future clinical tests.
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6.
  • Cruz-Rojas, Agneta, et al. (författare)
  • Prevalence and incidence of Carotid-Fetal-Posterior syndrome
  • 2023
  • Ingår i: Cerebrovascular Diseases. - : S. Karger. - 1015-9770 .- 1421-9786. ; 52:6, s. 643-650
  • Tidskriftsartikel (refereegranskat)abstract
    • Introduction: Carotid-Fetal-Posterior (CFP) syndrome is a posterior cerebral artery (PCA) territory ischemic stroke/TIA caused by symptomatic >= 50% carotid stenosis or occlusion via fetal posterior communicating artery. We aimed to assess the incidence of CFP syndrome and prevalence of CFP syndrome among symptomatic >= 50% carotid stenosis or occlusion as these are unknown.Methods: We reassessed consecutive CTAs from 4042 persons, and included locally admitted patients with >= 50% carotid stenosis or occlusion. These were assessed for symptoms and signs of possible posterior circulation stroke/TIA (suspicion of CFP syndrome). Among these, those with unilateral PCA territory stroke/TIA, ipsilateral stenosis and fetal/fetal type PCA were considered CFP syndrome.Results: We included 208 locally admitted patients with >= 50% carotid stenosis or occlusion, 33 (16%) patients had suspicion of CFP syndrome, of which 3 (9%) had CFP syndrome. The prevalence of CFP syndrome was 2.9% of symptomatic >= 50% carotid stenosis or occlusion; incidence was 4.23 per 1 000 000 person-years. Also, we found a lower prevalence of CFP-syndrome (0.9%, p=0.047) among referred patients with symptomatic >= 50% carotid stenosis or occlusion than among locally admitted patients with symptomatic >= 50% carotid stenosis or occlusion.Discussion/Conclusion: CFP syndrome has a low incidence and low prevalence among symptomatic carotid stenosis cases. Given lower prevalence of CFP syndrome among referred cases than local, CFP-syndrome seems susceptible to underdiagnosis. On the other hand, few cases with suspicion of CFP syndrome had CFP syndrome, why CFP syndrome also seems susceptible to overdiagnosis if detailed assessment is not employed.
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7.
  • Eriksson, Hanna, et al. (författare)
  • Risk of poststroke epilepsy after reperfusion therapies: A national cohort study
  • 2023
  • Ingår i: European Journal of Neurology. - : Wiley. - 1351-5101 .- 1468-1331. ; 30:5, s. 1303-1311
  • Tidskriftsartikel (refereegranskat)abstract
    • Background and purpose: The risk of poststroke epilepsy (PSE) after endovascular treatment (EVT) is not well characterized. In this nationwide study, we assessed the risk of PSE after EVT and identified associated predictors.Methods: We included all individuals (n = 3319) treated with EVT (& PLUSMN;intravenous thrombolysis [IVT]) between 2015 and 2019 in the Swedish National Quality Register for EVT. Two control groups were identified from the Swedish Stroke Register: the first treated with IVT alone (n = 3132) and the second with no treatment (n = 3184), both matched for age, sex, stroke severity, and time of stroke.Results: PSE developed in 7.9% (n = 410). The survival-adjusted 2-year risk was 6.5% (95% confidence interval [CI] = 5.28-7.70) after EVT, 10.0% (95% CI = 8.25-11.75) after IVT, and 12.3% after no revascularization (95% CI = 10.33-14.25). The hazard ratio (HR) of PSE after EVT was almost half compared to no treatment (HR = 0.51, 95% CI = 0.41-0.64). The risk of PSE after EVT was lower compared to no treatment in a multivariable Cox model that adjusted for age, sex, hemicraniectomy, and stroke severity (HR = 0.76, 95% CI = 0.60-0.96). Multivariable predictors of PSE after EVT were large infarction on computed tomography Day 1, high posttreatment National Institutes of Health Stroke Scale score, and need of assistance 3 months after stroke. IVT before EVT was associated with a lower risk of PSE (HR = 0.66, 95% CI = 0.46-0.94).Conclusions: This nationwide study identified a reduced risk of PSE after EVT. Markers of severe infarction after EVT were associated with PSE, whereas IVT given before EVT was protective.
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8.
  • Filioglo, A., et al. (författare)
  • Tandem occlusions involving the internal carotid and anterior cerebral arteries-A rare form of stroke: Results from the multicenter EVATRISP collaboration study
  • 2022
  • Ingår i: Frontiers in Neurology. - : Frontiers Media SA. - 1664-2295. ; 13
  • Tidskriftsartikel (refereegranskat)abstract
    • BackgroundPatients with stroke secondary to isolated anterior cerebral artery (ACA) occlusions have poor outcomes. Whether tandem occlusions (TO) of the extracranial internal carotid (ICA) and the ACA carry even worse outcomes that remain unknown. MethodsPatients with TO involving ICA and ACA occlusions were identified from 14 participating centers from the EndoVascular treatment And ThRombolysis in Ischemic Stroke Patients (EVATRISP) project which is a multicenter, observational, cohort study with prospective accrual of data followed by retrospective data analysis. Patients with isolated ACA stroke served as controls. ResultsIncluded were 92 patients with isolated ACA and 16 patients with ICA-ACA TO stroke. On univariate analyses, patients with TO had more severe strokes on admission [median NIHSS (IQR) 13.5 (9-21) vs. 8 (5-12), p = 0.003] and were more often treated with thrombectomy (81 vs. 40%, p = 0.002). Mortality rates were higher among TO patients (31 vs. 11%, p = 0.03). Rates of favorable functional outcomes were numerically lower among TO patients (38 vs. 60%) but the difference was not statistically significant (p = 0.09). On multivariate analyses, the presence of TO did not modify the chances for favorable outcomes. ConclusionTO stroke with ICA and isolated ACA involvement is rare and results in more severe initial neurological deficits and higher mortality compared to those seen in patients with isolated ACA stroke.
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9.
  • Fitzgerald, Seán, et al. (författare)
  • Large Artery Atherosclerotic Clots are Larger than Clots of other Stroke Etiologies and have Poorer Recanalization rates.
  • 2021
  • Ingår i: Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association. - : Elsevier BV. - 1532-8511. ; 30:1
  • Tidskriftsartikel (refereegranskat)abstract
    • There is a paucity of knowledge in the literature relating to the extent of clot burden and stroke etiology. In this study, we measured the Extracted Clot Area (ECA) retrieved during endovascular treatment (EVT) and investigated relationships with suspected etiology, administration of intravenous thrombolysis and recanalization.As part of the multi-institutional RESTORE registry, the ECA retrieved during mechanical thrombectomy was quantified using ImageJ. The effect of stroke etiology (Large-artery atherosclerosis (LAA), Cardioembolism, Cryptogenic and other) and recombinant tissue plasminogen activator (rtPA) on ECA and recanalization outcome (mTICI) was assessed. Successful recanalization was described as mTICI 2c-3.A total of 550 patients who underwent EVT with any clot retrieved were included in the study. The ECA was significantly larger in the LAA group compared to all other etiologies. The average ECA size of each etiology was; LAA=109mm2, Cardioembolic=52mm2, Cryptogenic=47mm2 and Other=52mm2 (p=0.014*). LAA patients also had a significantly poorer rate of successful recanalization (mTICI 2c-3) compared to all other etiologies (p=0.003*). The administration of tPA was associated with a smaller ECA in both LAA (p=0.007*) and cardioembolic (p=0.035*) groups.The ECA of LAA clots was double the size of all other etiologies and this is associated with a lower rate of successful recanalization in LAA stroke subtype. rtPA administration prior to thrombectomy was associated with reduced ECA in LAA and CE clots.
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10.
  • Fitzgerald, Seán, et al. (författare)
  • Per-pass analysis of acute ischemic stroke clots: impact of stroke etiology on extracted clot area and histological composition.
  • 2021
  • Ingår i: Journal of neurointerventional surgery. - : BMJ. - 1759-8486 .- 1759-8478. ; 13, s. 1111-1116
  • Tidskriftsartikel (refereegranskat)abstract
    • Initial studies investigating correlations between stroke etiology and clot composition are conflicting and do not account for clot size as determined by area. Radiological studies have shown that cardioembolic strokes are associated with shorter clot lengths and lower clot burden than non-cardioembolic clots.To report the relationship between stroke etiology, extracted clot area, and histological composition at each procedural pass.As part of the multi-institutional RESTORE Registry, the Martius Scarlett Blue stained histological composition and extracted clot area of 612 per-pass clots retrieved from 441 patients during mechanical thrombectomy procedures were quantified. Correlations with clinical and procedural details were investigated.Clot composition varied significantly with procedural passes; clots retrieved in earlier passes had higher red blood cell content (H4=11.644, p=0.020) and larger extracted clot area (H4=10.730, p=0.030). Later passes were associated with significantly higher fibrin (H4=12.935, p=0.012) and platelets/other (H4=15.977, p=0.003) content and smaller extracted clot area. Large artery atherosclerotic (LAA) clots were significantly larger in the extracted clot area and more red blood cell-rich than other etiologies in passes 1-3. Cardioembolic and cryptogenic clots had similar histological composition and extracted clot area across all procedural passes.LAA clots are larger and associated with a large red blood cell-rich extracted clot area, suggesting soft thrombus material. Cardioembolic clots are smaller in the extracted clot area, consistent in composition and area across passes, and have higher fibrin and platelets/other content than LAA clots, making them stiffer clots. The per-pass histological composition and extracted clot area of cryptogenic clots are similar to those of cardioembolic clots, suggesting similar formation mechanisms.
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