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Multiple drug resistance (MDR) has gained pronounced attention among Enterobacterales. The transfer of multiple antimicrobial resistance genes, frequently carried on conjugative incompatibility F (IncF) plasmids and facilitating interspecies resistance transmission, has been linked to Salmonella spp. and E. coli in broilers. In Egypt, the growing resistance is exacerbated by the limited clinical efficacy of many antimicrobials. In this study, IncF groups were screened and characterized in drug-resistant Salmonella spp. and E. coli isolated from broilers. The antimicrobial resistance profile, PCR-based replicon typing of bacterial isolates pre- and post-plasmid curing, and IncF replicon allele sequence typing were investigated. Five isolates of E. coli (5/31; 16.13%) and Salmonella spp. (5/36; 13.89%) were pan-susceptible to the examined antimicrobial agents, and 85.07% of tested isolates were MDR and extensively drug-resistant (XDR). Twelve MDR and XDR E. coli and Salmonella spp. isolates were examined for the existence of IncF replicons (FII, FIA, and FIB). They shared resistance to ampicillin, ampicillin/sulbactam, amoxicillin/clavulanate, doxycycline, cefotaxime, and colistin. All isolates carried from one to two IncF replicons. The FII-FIA-FIB+ and FII-FIA+FIB- were the predominant replicon patterns. FIB was the most frequently detected replicon after plasmid curing. Three XDR E. coli isolates that were resistant to 12-14 antimicrobials carried a newly FIB replicon allele with four nucleotide substitutions: C99âA, G112âT, C113âT, and G114âA. These findings suggest that broilers are a significant reservoir of IncF replicons with highly divergent IncF-FIB plasmid incompatibility groups circulating among XDR Enterobacterales. Supporting these data with additional comprehensive epidemiological studies involving replicons other than the IncF can provide insights for implementing efficient policies to prevent the spreading of new replicons to humans.
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Alelos , Galinhas , Farmacorresistência Bacteriana Múltipla , Infecções por Escherichia coli , Escherichia coli , Plasmídeos , Doenças das Aves Domésticas , Replicon , Animais , Galinhas/microbiologia , Escherichia coli/genética , Escherichia coli/efeitos dos fármacos , Replicon/genética , Farmacorresistência Bacteriana Múltipla/genética , Plasmídeos/genética , Doenças das Aves Domésticas/microbiologia , Infecções por Escherichia coli/microbiologia , Infecções por Escherichia coli/veterinária , Antibacterianos/farmacologia , Testes de Sensibilidade Microbiana , Salmonella/genética , Salmonella/efeitos dos fármacosRESUMO
Background Thromboembolic events and intraoperative rupture are the most frequent neurologic complications of intracranial aneurysm coiling. Their frequency has not been evaluated in recent series. Purpose To provide an analysis of complications, clinical outcome, and participant and aneurysm risk factors after aneurysm coiling or balloon-assisted coiling within the Analysis of Recanalization after Endovascular Treatment of Intracranial Aneurysm, or ARETA, cohort. Materials and Methods Sixteen neurointerventional departments prospectively enrolled participants treated for ruptured and unruptured aneurysms between December 2013 and May 2015. Participant demographics, aneurysm characteristics, and endovascular techniques were recorded. Data were analyzed from participants within the overall cohort treated with coiling or balloon-assisted coiling for a single aneurysm. Rates of neurologic complications were analyzed, and associated factors were studied by using univariable analyses (Student t test, χ2 test, or Fisher exact test, as appropriate) and multivariable analyses (logistic regressions). Results A total of 1088 participants (mean age ± standard deviation, 54 years ± 13; 715 women [65.7%]) were analyzed. Thromboembolic events and intraoperative rupture were reported in 113 of 1088 participants (10.4%) and 34 of 1088 participants (3.1%), respectively. Poor clinical outcome (defined as modified Rankin Scale score of 3-6) was reported in 29 of 113 participants (25.7%) with thromboembolic events and in 11 of 34 participants (32.4%) with intraoperative rupture (P = .44). Factors associated with thromboembolic events were female sex (odds ratio [OR], 1.7; 95% confidence interval [CI]: 1.1, 2.8; P = .02) and middle cerebral artery location (OR, 1.9; 95% CI: 1.2, 3.0; P = .008). Factors associated with intraoperative rupture were anterior communicating artery location (OR, 2.2; 95% CI: 1.1, 4.7; P = .03) and small aneurysm size (OR, 3.0; 95% CI: 1.5, 6.3; P = .003). Conclusion During aneurysm coiling or balloon-assisted coiling, thromboembolic events were more frequent than were intraoperative rupture. Both complications were associated with poor clinical outcome in a similar percentage of participants. Risk factors for thromboembolic events were female sex and middle cerebral artery location. Risk factors for intraoperative rupture were small aneurysm size and anterior cerebral or communicating artery location. © RSNA, 2020.
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Embolização Terapêutica/métodos , Procedimentos Endovasculares/métodos , Aneurisma Intracraniano/cirurgia , Complicações Intraoperatórias , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , França , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de RiscoRESUMO
Materials that can mimic the molecular recognition-based functions found in biology are a significant goal for science and technology. Molecular imprinting is a technology that addresses this challenge by providing polymeric materials with antibody-like recognition characteristics. Recently, significant progress has been achieved in solving many of the practical problems traditionally associated with molecularly imprinted polymers (MIPs), such as difficulties with imprinting of proteins, poor compatibility with aqueous environments, template leakage, and the presence of heterogeneous populations of binding sites in the polymers that contribute to high levels of non-specific binding. This success is closely related to the technology-driven shift in MIP research from traditional bulk polymer formats into the nanomaterial domain. The aim of this article is to throw light on recent developments in this field and to present a critical discussion of the current state of molecular imprinting and its potential in real world applications.
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Anticorpos , Impressão Molecular , Nanopartículas , Animais , Anticorpos/química , Anticorpos/uso terapêutico , Humanos , Nanopartículas/química , Nanopartículas/uso terapêuticoRESUMO
The study investigated 110 Enterobacteriaceae isolates from broiler chickens isolated from Sharkia poultry farms and analyzed the isolates antimicrobial resistance and the presence of integrons as a potential basis for this resistance. Antibiotic susceptibilities against 12 different antibiotics were determined by the disk diffusion method. Prevalences and classes of integrons were then detected in multi-drug resistant (MDR) strains using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) followed by sequencing of the variable parts. Fifty-three isolates were MDR (resistant to three or more antimicrobial agents). High resistance was detected for rifamycin (82.7%), erythromycin (67.2%), and amoxicillin-clavulanic acid (63%). Classes 1 and 2 integrons were detected in 38 of 53 MDR Enterobacteriaceae isolates of which the most common were Salmonella species (n=19), followed by Escherichia coli (12), Klebsiella pneumoniae (3), Proteus species (3), and Citrobacter freundii (1). Three isolates only harbored class 1 integrons while the remaining 35 isolates carried class 2. All class 1 integron positive isolates exhibited the same gene cassettes arrangements: 1.) dfrA12-orfF-aadA27 (1.6 kbp); 2.) aadA23 (1.0 kbp); and 3.) dfrA15 (0.8 kbp). Moreover, four different gene cassettes were identified within class 2 integrons: 1.) dfrA1-sat2-aadA30 (2 kbp) in all isolates; 2.) sat2-aadA1 (1.7 kbp) in only one isolate; 3.) catB2 (0.9 kbp) in four isolates; and 4.) a new variant of sat2 (0.65 kbp) in three isolates. Efforts should be made to introduce surveillance programs for monitoring antimicrobial resistance that could potentially be transmitted from broiler chickens to human via integrons.
Assuntos
Farmacorresistência Bacteriana/genética , Infecções por Enterobacteriaceae/veterinária , Enterobacteriaceae/genética , Regulação Bacteriana da Expressão Gênica , Genes Bacterianos , Integrons , Doenças das Aves Domésticas/epidemiologia , Combinação Amoxicilina e Clavulanato de Potássio/farmacologia , Animais , Antibacterianos/farmacologia , Galinhas , Egito/epidemiologia , Enterobacteriaceae/efeitos dos fármacos , Enterobacteriaceae/isolamento & purificação , Infecções por Enterobacteriaceae/tratamento farmacológico , Infecções por Enterobacteriaceae/epidemiologia , Infecções por Enterobacteriaceae/microbiologia , Eritromicina/farmacologia , Fazendas , Testes de Sensibilidade Microbiana , Epidemiologia Molecular , Reação em Cadeia da Polimerase , Polimorfismo de Fragmento de Restrição , Aves Domésticas , Doenças das Aves Domésticas/tratamento farmacológico , Doenças das Aves Domésticas/microbiologia , Rifamicinas/farmacologiaRESUMO
BACKGROUND: Vasospasm and delayed cerebral ischemia (DCI) are the leading causes of morbidity and mortality after intracranial aneurysmal subarachnoid hemorrhage (aSAH). Vasospasm detection, prevention and management, especially endovascular management varies from center to center and lacks standardization. We aimed to evaluate this variability via an international survey of how neurointerventionalists approach vasospasm diagnosis and endovascular management. METHODS: We designed an anonymous online survey with 100 questions to evaluate practice patterns between December 2021 and September 2022. We contacted endovascular neurosurgeons, neuroradiologists and neurologists via email and via two professional societies - the Society of NeuroInterventional Surgery (SNIS) and the European Society of Minimally Invasive Neurological Therapy (ESMINT). We recorded the physicians' responses to the survey questions. RESULTS: A total of 201 physicians (25% [50/201] USA and 75% non-USA) completed the survey over 10 months, 42% had >7 years of experience, 92% were male, median age was 40 (IQR 35-46). Both high-volume and low-volume centers were represented. Daily transcranial Doppler was the most common screening method (75%) for vasospasm. In cases of symptomatic vasospasm despite optimal medical management, endovascular treatment was directly considered by 58% of physicians. The most common reason to initiate endovascular treatment was clinical deficits associated with proven vasospasm/DCI in 89%. The choice of endovascular treatment and its efficacy was highly variable. Nimodipine was the most common first-line intra-arterial therapy (40%). Mechanical angioplasty was considered the most effective endovascular treatment by 65% of neurointerventionalists. CONCLUSION: Our study highlights the considerable heterogeneity among the neurointerventional community regarding vasospasm diagnosis and endovascular management. Randomized trials and guidelines are needed to improve standard of care, determine optimal management approaches and track outcomes.
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BACKGROUND: One limitation of the endovascular treatment of intracranial aneurysms is aneurysm recanalization. The Analysis of Recanalization after Endovascular Treatment of intracranial Aneurysm (ARETA) study is a prospective multicenter cohort study evaluating the factors associated with recanalization after endovascular treatment. METHODS: The current analysis is focused on patients treated by coiling or balloon-assisted coiling (BAC). Postoperative, mid-term vascular imaging, and evolution of aneurysm occlusion were independently evaluated by two neuroradiologists. A 3-grade scale was used for aneurysm occlusion (complete occlusion, neck remnant, and aneurysm remnant) and for occlusion evolution (improved, stable, and worsened). Recanalization was defined as any worsening of aneurysm occlusion. RESULTS: Between December 2013 and May 2015, 16 French neurointerventional departments enrolled 1289 patients. A total of 945 aneurysms in 908 patients were treated with coiling or BAC. The overall rate of aneurysm recanalization at mid-term follow-up was 29.5% (95% CI 26.6% to 32.4%): 28.9% and 30.3% in the coiling and BAC groups, respectively. In multivariate analyses factors independently associated with recanalization were current smoking (36.6% in current smokers vs 24.5% in current non-smokers (OR 1.8 (95% CI 1.3 to 2.4); p=0.0001), ruptured status (31.9% in ruptured aneurysms vs 25.1% in unruptured (OR 1.5 (95% CI 1.1 to 2.1); p=0.006), aneurysm size ≥10 mm (48.8% vs 26.5% in aneurysms <10 mm (OR 2.6 (95% CI 1.8 to 3.9); p<0.0001), wide neck (32.1% vs 25.8% in narrow neck (OR 1.5 (95% CI 1.1 to 2.1); p=0.02), and MCA location (34.3% vs 28.3% in other locations (OR 1.5 (95% CI 1.0 to 2.1); p=0.04). CONCLUSIONS: Several factors are identified by the ARETA study as playing a role in aneurysm recanalization after coiling: current smoking, aneurysm status (ruptured), aneurysm size (≥10 mm), neck size (wide neck), and aneurysm location (middle cerebral artery). This finding has important consequences in clinical practice. TRIAL REGISTRATION NUMBER: URL: http://www. CLINICALTRIALS: gov; Unique Identifier: NCT01942512.
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Aneurisma Roto , Embolização Terapêutica , Procedimentos Endovasculares , Aneurisma Intracraniano , Doenças Vasculares , Aneurisma Roto/complicações , Aneurisma Roto/diagnóstico por imagem , Aneurisma Roto/terapia , Estudos de Coortes , Embolização Terapêutica/efeitos adversos , Embolização Terapêutica/métodos , Procedimentos Endovasculares/efeitos adversos , Procedimentos Endovasculares/métodos , Seguimentos , Humanos , Aneurisma Intracraniano/complicações , Aneurisma Intracraniano/diagnóstico por imagem , Aneurisma Intracraniano/terapia , Estudos Prospectivos , Estudos Retrospectivos , Stents , Resultado do Tratamento , Doenças Vasculares/terapiaRESUMO
The coronavirus disease 2019 (COVID-19) pandemic affected the healthcare system in a major way generally. Healthcare re-organization of resources and manpower, establishing management protocols and specific patients' pathways are all evolving with the continuously changing situation. Neuro-vascular management and its re-organization are part of these global measures to cope with this pandemic in a way to establish less risky patients' pathways, help in patients' triage, protecting the staff by introducing training and applying safety measures and to manage neuro-vascular emergencies and elective activity. We here describe the situation of the pandemic affecting neuro-vascular interventions and propose our recommendations for patients' triage, resources management and organization, remote solutions and preparations for any future waves.
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COVID-19 , Pandemias , Atenção à Saúde , Humanos , SARS-CoV-2 , TriagemRESUMO
BACKGROUND: Coiling, including balloon-assisted coiling (BAC), is the first-line therapy for ruptured and unruptured aneurysms. Its efficacy can be clinically evaluated by bleeding/rebleeding rate after coiling, and anatomically evaluated by aneurysm occlusion post-procedure and during follow-up. We aimed to analyze immediate post-coiling aneurysm occlusion and associated factors within the Analysis of Recanalization after Endovascular Treatment of intracranial Aneurysm (ARETA) population. METHODS: Between December 2013 and May 2015, 16 neurointerventional departments prospectively enrolled participants treated for ruptured and unruptured aneurysms (ClinicalTrials.gov: NCT01942512). Participant demographics, aneurysm characteristics, and endovascular techniques were recorded. In patients with aneurysms treated by coiling or BAC, immediate post-operative aneurysm occlusion was independently evaluated by a core lab using a 3-grade scale: complete occlusion, neck remnant, and aneurysm remnant. RESULTS: Of 1135 participants (age 53.8±12.8 years, 754 women (66.4%)), 1189 aneurysms were analyzed. Treatment modality was standard coiling in 645/1189 aneurysms (54.2%) and BAC in 544/1189 (45.8%). Immediate post-operative aneurysm occlusion was complete occlusion in 57.8%, neck remnant in 34.4%, and aneurysm remnant in 7.8%. Adequate occlusion (complete occlusion or neck remnant) was significantly more frequent in aneurysms with size <10 mm (93.1% vs 86.3%; OR 1.8, 95% CI 1.1 to 3.2; p=0.02) and in aneurysms with a narrow neck (95.8% vs 89.6%; OR 2.5, 95% CI 1.5 to 4.1; p=0.0004). Patients aged <70 years had significantly more adequate occlusion (92.7% vs 87.2%; OR 1.9, 95% CI 1.1 to 3.4; p=0.04). CONCLUSIONS: Immediately after aneurysm coiling, including BAC, adequate aneurysm occlusion was obtained in 92.2%. Age <70 years, aneurysm size <10 mm, and narrow neck were factors associated with adequate occlusion. TRIAL REGISTRATION NUMBER: NCT01942512, http://www.clinicaltrials.gov.
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Aneurisma Roto , Embolização Terapêutica , Procedimentos Endovasculares , Aneurisma Intracraniano , Adulto , Idoso , Aneurisma Roto/diagnóstico por imagem , Aneurisma Roto/cirurgia , Embolização Terapêutica/efeitos adversos , Procedimentos Endovasculares/efeitos adversos , Feminino , Humanos , Aneurisma Intracraniano/diagnóstico por imagem , Aneurisma Intracraniano/cirurgia , Pessoa de Meia-Idade , Estudos Prospectivos , Estudos Retrospectivos , Stents , Resultado do TratamentoRESUMO
BACKGROUND: Coiling is the first-line treatment for the management of unruptured intracranial aneurysms (UIAs), but delayed thromboembolic events (TEEs) can occur after such treatment. ARETA (Analysis of Recanalization after Endovascular Treatment of Intracranial Aneurysm) is a prospective multicenter study conducted to analyze aneurysm recanalization. We analyzed delayed TEEs in the UIA subgroup. METHODS: Sixteen neurointerventional departments prospectively enrolled patients treated for ruptured and unruptured aneurysms between December 2013 and May 2015. Participant demographics, aneurysm characteristics, and endovascular techniques were recorded. Data were analyzed from participants with UIA treated by coiling or balloon-assisted coiling. We assessed the rates, timing, management, clinical outcomes, and risk factors for delayed TEEs using univariable and multivariable analyses. RESULTS: The rate of delayed TEEs was 2.4% (95% CI 1.0% to 4.6%) in patients with unruptured aneurysms, with all events occurring in the week following the procedure. In multivariate analysis, two factors were associated with delayed TEEs: autosomal dominant polycystic kidney disease (ADPKD): 20.0% in patients with ADPKD vs 1.9% in patients without ADPKD (OR 27.3 (95% CI 3.9 to 190.2), p=0.0008) and post-procedure aneurysm remnant: 9.4% in patients with post-procedure aneurysm remnant vs 1.6% in patients with adequate occlusion (OR 9.9 (95% CI 1.0 to 51.3), p=0.006). We describe modalities of management as well as clinical outcomes. CONCLUSIONS: Delayed TEE is a relatively rare complication after coiling of UIAs. In this series, all occurred in the week following the initial procedure. Two factors were associated with delayed TEE: ADPKD and aneurysm remnant at procedure completion. CLINICAL TRIAL REGISTRATION: NCT01942512.
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Procedimentos Endovasculares/efeitos adversos , Procedimentos Endovasculares/tendências , Aneurisma Intracraniano/diagnóstico , Aneurisma Intracraniano/cirurgia , Tromboembolia/diagnóstico , Tromboembolia/etiologia , Adulto , Idoso , Estudos de Coortes , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Estudos Prospectivos , Fatores de Risco , Fatores de Tempo , Resultado do TratamentoRESUMO
Stroke is a devastating disease. Endovascular mechanical thrombectomy is dramatically changing the management of acute ischemic stroke, raising new challenges regarding brain outcome and opening up new avenues for brain protection. In this context, relevant experiment models are required for testing new therapies and addressing important questions about infarct progression despite successful recanalization, reversibility of ischemic lesions, blood-brain barrier disruption and reperfusion damage. Here, we developed a minimally invasive non-human primate model of cerebral ischemia (Macaca fascicularis) based on an endovascular transient occlusion and recanalization of the middle cerebral artery (MCA). We evaluated per-occlusion and post-recanalization impairment on PET-MRI, in addition to acute and chronic neuro-functional assessment. Voxel-based analyses between per-occlusion PET-MRI and day-7 MRI showed two different patterns of lesion evolution: "symptomatic salvaged tissue" (SST) and "asymptomatic infarcted tissue" (AIT). Extended SST was present in all cases. AIT, remote from the area at risk, represented 45% of the final lesion. This model also expresses both worsening of fine motor skills and dysexecutive behavior over the chronic post-stroke period, a result in agreement with cortical-subcortical lesions. We thus fully characterized an original translational model of ischemia-reperfusion damage after stroke, with consistent ischemia time, and thrombus retrieval for effective recanalization.
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Procedimentos Endovasculares/métodos , AVC Isquêmico/diagnóstico por imagem , AVC Isquêmico/cirurgia , Trombectomia/métodos , Animais , Comportamento Animal , Barreira Hematoencefálica , Modelos Animais de Doenças , Função Executiva , Infarto da Artéria Cerebral Média/diagnóstico por imagem , AVC Isquêmico/psicologia , Macaca fascicularis , Imageamento por Ressonância Magnética , Masculino , Destreza Motora , Tomografia por Emissão de Pósitrons , Traumatismo por Reperfusão , Tomografia Computadorizada por Raios X , Resultado do TratamentoRESUMO
BACKGROUND: The aim of this study was to assess the technical success and procedural safety of the new Silk Vista device (SV) by evaluating the intraprocedural and periprocedural complication rate after its use in several institutions worldwide. METHODS: The study involved a retrospective review of multicenter data regarding a consecutive series of patients with intracranial aneurysms, treated with the SV between September 2020 and January 2021. Clinical, intra/periprocedural and angiographic data, including approach, materials used, aneurysm size and location, device/s, technical details and initial angiographic aneurysm occlusion, were analyzed. RESULTS: 60 aneurysms were treated with SV in 57 procedures. 66 devices were used, 3 removed and 63 implanted. The devices opened instantaneously in 60 out of 66 (91%) cases and complete wall apposition was achieved in 58 out of 63 (92%) devices implanted. In 4 out of 66 (6%) devices a partial opening of the distal end occurred, and in 5 (8%) devices incomplete apposition was reported. There were 3 (5%) intraprocedural thromboembolic events managed successfully with no permanent neurological morbidity, and 4 (7%) postprocedural events. There was no mortality in this study. The initial occlusion rates in the 60 aneurysms were as follows: O'Kelly-Marotta (OKM) A in 34 (57%) cases, OKM B in 15 (25%) cases, OKM C in 6 (10%) cases, and OKM D in 5 (8%) cases. CONCLUSIONS: Our study demonstrated that the use of the new flow diverter Silk Vista for the treatment of intracranial aneurysms is feasible and technically safe.
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Procedimentos Endovasculares , Aneurisma Intracraniano , Humanos , Aneurisma Intracraniano/diagnóstico por imagem , Aneurisma Intracraniano/cirurgia , Estudos Retrospectivos , Seda , Stents , Resultado do TratamentoRESUMO
PURPOSE OF REVIEW: In a rapidly advancing specialty, it is essential to review the recent studies of alternative new treatments and present their efficacy, safety and outcome. We discuss the recent advances in the endovascular treatment of cerebral vasospasm following aneurysmal subarachnoid hemorrhage in the past few years with special focus on the literature regarding this subject in the last 18-24 months. RECENT FINDINGS: The recent findings are as follows: effect of papaverine on brain oxygen; recent evaluation concerning nimodipine use; combined intraarterial and intravenous use of milrinone; illustration of the numerous recent studies on nicardipine; the safety and efficacy of high-dose intraarterial verapamil; outcome and adverse effects of intraarterial fasudil; transluminal balloon angioplasty; and recent evaluation of its efficacy and evaluation of its prophylactic use. SUMMARY: Endovascular treatment, including intraarterial vasodilators and transluminal balloon angioplasty, has a very important place in the management of symptomatic vasospasm related to aneurysmal subarachnoid hemorrhage. The efficacy of intraarterial vasodilators has been proven. Numerous studies and analysis of different treatments of cerebrovascular vasospasm took place in the past period. This allowed more understanding and evaluation of their outcome, safety and efficacy helping physicians to choose better treatments to adopt. It emphasizes also the aspects that need more study and research.
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Procedimentos Endovasculares , Hemorragia Subaracnóidea/complicações , Vasoespasmo Intracraniano/etiologia , 1-(5-Isoquinolinasulfonil)-2-Metilpiperazina/análogos & derivados , 1-(5-Isoquinolinasulfonil)-2-Metilpiperazina/uso terapêutico , Angioplastia com Balão , Cuidados Críticos , Humanos , Unidades de Terapia Intensiva , Milrinona/uso terapêutico , Nicardipino/uso terapêutico , Papaverina/uso terapêutico , Fatores de Risco , Hemorragia Subaracnóidea/patologia , Hemorragia Subaracnóidea/terapia , Vasodilatadores/uso terapêutico , Vasoespasmo Intracraniano/terapia , Verapamil/uso terapêuticoRESUMO
BACKGROUND: Endovascular treatment is the first line therapy for the management of ruptured and unruptured intracranial aneurysms, but delayed aneurysm rupture leading to bleeding/rebleeding can occur subsequently. ARETA (Analysis of Recanalization after Endovascular Treatment of intracranial Aneurysm) is a prospective, multicenter study conducted to analyze aneurysm recanalization. We analyzed delayed bleeding and rebleeding in this large cohort. METHODS: 16 neurointerventional departments prospectively enrolled patients treated for ruptured and unruptured aneurysms between December 2013 and May 2015 (ClinicalTrials.gov: NCT01942512). Participant demographics, aneurysm characteristics and endovascular techniques were recorded. Data were analyzed from participants with ruptured or unruptured aneurysms treated by coiling or balloon-assisted coiling. Rates of bleeding and rebleeding were analyzed and associated factors were studied using univariable and multivariable analyses. RESULTS: The bleeding rate was 0.0% in patients with unruptured aneurysms and 1.0% (95% CI 0.3% to 1.7%) in patients with ruptured aneurysms. In multivariate analysis, two factors were associated with rebleeding occurrence: incomplete aneurysm occlusion after initial treatment (2.0% in incomplete aneurysm occlusion vs 0.2% in complete aneurysm occlusion, OR 10.2, 95% CI 1.2 to 83.3; p=0.03) and dome-to-neck ratio (1.5±0.5 with rebleeding vs 2.2±0.9 without rebleeding, OR 0.2, 95% CI 0.04 to 0.8; p=0.03). Modalities of management of aneurysm rebleeding as well as clinical outcomes are described. CONCLUSIONS: Aneurysm coiling affords good protection against bleeding (for unruptured aneurysms) and rebleeding (for ruptured aneurysms) at 1 year with rates of 0.0% and 1.0%, respectively. Aneurysm occlusion and dome-to-neck ratio are the two factors that appear to play a role in the occurrence of rebleeding.
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Aneurisma Roto/epidemiologia , Aneurisma Roto/terapia , Revascularização Cerebral/tendências , Procedimentos Endovasculares/tendências , Hemorragia/epidemiologia , Aneurisma Intracraniano/epidemiologia , Aneurisma Intracraniano/terapia , Adolescente , Adulto , Revascularização Cerebral/métodos , Estudos de Coortes , Procedimentos Endovasculares/métodos , Feminino , Seguimentos , Hemorragia/prevenção & controle , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Estudos Prospectivos , Resultado do Tratamento , Adulto JovemRESUMO
BACKGROUND AND PURPOSE: Flow diversion is an innovative and increasingly used endovascular treatment for intracranial aneurysms. Its initial evaluation with the first devices available showed good efficacy of this treatment with variable safety results. The Flow Direction Endoluminal Device (FRED) has a specific design and was evaluated in a single-arm, multicenter, prospective, Good Clinical Practice study: SAFE (Safety and efficacy Analysis of FRED Embolic device in aneurysm treatment). This analysis reports clinical results at 1 year and anatomical results at 6 months and 1 year. METHODS: Patients with unruptured and recanalized aneurysms located in the anterior circulation treated with FRED and FRED Jr were prospectively included. A Clinical Event Committee and a Core Laboratory independently evaluated clinical outcome and anatomical results. RESULTS: Thirteen interventional neuroradiology centers included 103 patients/aneurysms. Aneurysm locations were supraclinoid internal carotid artery (ICA) in 71 (68.9%), cavernous ICA in 15 (14.6%), anterior cerebral or anterior communicating artery in 9 (8.7%), and middle cerebral artery in 8 (7.8%). Most aneurysms were small (<10 mm) in 71 patients (68.9%). Cumulative 1-year mortality and morbidity rates were 2/103 (1.9%) and 3/103 (2.9%), respectively, one death being related to cancer. At 1 year, anatomical results were: complete occlusion in 66/90 patients (73.3%), neck remnant in 7/90 patients (7.8%), and aneurysm remnant in 17/90 patients (18.9%). CONCLUSIONS: SAFE study analysis at 1 year confirms the excellent safety profile of the FRED device for aneurysm treatment, with low morbidity and mortality rates (2.9% and 1.9%, respectively) and demonstrates its efficacy (adequate occlusion in 73/90 (81.1%)). CLINICAL TRIAL REGISTRATION: Unique identifier: NCT02921698; Results.
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Embolização Terapêutica/instrumentação , Aneurisma Intracraniano/diagnóstico por imagem , Aneurisma Intracraniano/terapia , Stents Metálicos Autoexpansíveis , Adulto , Idoso , Idoso de 80 Anos ou mais , Embolização Terapêutica/efeitos adversos , Embolização Terapêutica/tendências , Procedimentos Endovasculares/efeitos adversos , Procedimentos Endovasculares/instrumentação , Procedimentos Endovasculares/tendências , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Stents Metálicos Autoexpansíveis/efeitos adversos , Stents Metálicos Autoexpansíveis/tendências , Resultado do TratamentoRESUMO
BACKGROUND AND PURPOSE: To evaluate the safety and effectiveness of the low-profile braided intracranial stents called the Low Profile Visualized Intraluminal Support (LVIS) devices for stent-assisted coil embolization of wide-necked intracranial aneurysms. MATERIALS AND METHODS: This was a prospective, multicenter, observational study of unruptured and ruptured intracranial aneurysms treated with the LVIS devices. Imaging and clinical data were independently analyzed respectively by CoreLab and Clinical Event Committee. Primary endpoints were clinical safety, effectiveness, and angiographic stability of the results at 6 and 18 months. RESULTS: Ten centers participated in the study; 102 patients were included and 90 patients (42.2% men, 57.8% women) were eventually analyzed, among which 27 (30.0%) had multiple aneurysms. Twenty-three (25.6%) were ruptured aneurysms, four of which (4.4%) were treated in the acute phase. One aneurysm was treated per patient; 92 LVIS and LVIS Jr devices were placed overall. The total aneurysm occlusion rate was 91.0% on immediate post-procedure angiograms, which remained unchanged at 6-month follow-up and was 92.4% at 18-month follow-up. One patient (1.1%) underwent retreatment between 6 and 18 months of follow-up. A modified Rankin score of 0 was documented for most cases immediately after the procedure (86.7%) and at 6-month (86.8%) and 18-month (83.3%) follow-up. The overall permanent morbidity rate at 18 months was 5.6% and the overall rate of events with sequelae related to the stent was 2.2%. The 18-month procedure-related mortality rate was 3.3%. No patient was deemed to require retreatment at 18-month follow-up. CONCLUSION: The LVIS/LVIS Jr endovascular devices are safe and effective in the treatment of ruptured and unruptured intracranial aneurysms, with acceptable complication rates, very high immediate total occlusion rates, and stable angiographic results.
Assuntos
Aneurisma Roto/diagnóstico por imagem , Aneurisma Roto/cirurgia , Procedimentos Endovasculares/métodos , Aneurisma Intracraniano/diagnóstico por imagem , Aneurisma Intracraniano/cirurgia , Stents , Adulto , Idoso , Prótese Vascular/normas , Angiografia Cerebral/métodos , Procedimentos Endovasculares/normas , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Retratamento , Stents/normas , Resultado do TratamentoRESUMO
BACKGROUND AND PURPOSE: Flow diverters are increasingly used for the treatment of intracranial aneurysms. Evaluation of the first devices available for clinical use showed high efficacy of this treatment although safety results were worse compared with coiling or balloon-assisted coiling. The Safety and Efficacy Analysis of FRED Embolic Device in Aneurysm Treatment (SAFE) trial is a single-arm, multicenter, prospective study conducted to precisely analyze the safety and efficacy of the FRED and FRED Jr devices. METHODS: Unruptured and recanalized aneurysms located in the anterior circulation treated with FRED and FRED Jr were prospectively included. Adverse events were independently evaluated by a Clinical Event Committee with a vascular neurosurgeon and an interventional neuroradiologist. Primary safety outcome measures were morbidity and mortality rates at 6 months after treatment. RESULTS: A total of 103 patients/aneurysms were included in 13 interventional neuroradiology (INR) centers. Aneurysm locations were supraclinoid internal carotid artery (ICA) in 71 (68.9%), cavernous ICA in 15 (14.6%), anterior cerebral artery or anterior communicating artery in nine (8.7%), and middle cerebral artery in eight (7.8%). Aneurysms were small (<10 mm) in 71 patients (68.9%). Treatment was successfully performed in 98/103 patients (95.1%). Thromboembolic (TE) complications occurred in 5/103 patients (4.9%), intraoperative rupture in 2/103 patients (1.9%), delayed aneurysm rupture in 1/103 patient (1.0%), and delayed hematoma occurred in 1/103 patient (1.0%). Six-months' mortality and morbidity rates were 1/102 (1.0%) and 2/102 (2.0%), respectively. CONCLUSIONS: Aneurysm treatment with the FRED device is safe with low mortality (1.0%) and morbidity (2.0%). CLINICAL TRIAL REGISTRATION: NCT02921698.
Assuntos
Aneurisma Roto/mortalidade , Aneurisma Roto/terapia , Aneurisma Intracraniano/mortalidade , Aneurisma Intracraniano/terapia , Stents Metálicos Autoexpansíveis/tendências , Adulto , Idoso , Aneurisma Roto/diagnóstico por imagem , Procedimentos Endovasculares/efeitos adversos , Procedimentos Endovasculares/mortalidade , Procedimentos Endovasculares/tendências , Estudos de Viabilidade , Feminino , Humanos , Aneurisma Intracraniano/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Morbidade , Mortalidade/tendências , Estudos Prospectivos , Stents Metálicos Autoexpansíveis/efeitos adversos , Fatores de Tempo , Resultado do TratamentoAssuntos
Betacoronavirus , Infecções por Coronavirus/terapia , Pessoal de Saúde/normas , Doenças do Sistema Nervoso/terapia , Pneumonia Viral/terapia , Sociedades Médicas/normas , Doenças Vasculares/terapia , Isquemia Encefálica/diagnóstico , Isquemia Encefálica/epidemiologia , Isquemia Encefálica/terapia , COVID-19 , Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/epidemiologia , Gerenciamento Clínico , Europa (Continente)/epidemiologia , Humanos , Doenças do Sistema Nervoso/diagnóstico , Doenças do Sistema Nervoso/epidemiologia , Pandemias , Equipamento de Proteção Individual/normas , Pneumonia Viral/diagnóstico , Pneumonia Viral/epidemiologia , SARS-CoV-2 , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/terapia , Doenças Vasculares/diagnóstico , Doenças Vasculares/epidemiologiaRESUMO
PURPOSE: To evaluate the feasibility, safety and efficacy of endovascular treatment with flow diverters in patients with recanalized and multitreated aneurysms in a retrospective, multicenter, single-arm study. METHODS: The study included 29 patients with 29 recanalized aneurysms who were treated by flow diverters (Silk or Pipeline devices). Pre- and post-procedural complications and morbidity and mortality rates were evaluated and functional outcomes (modified Rankin Score (mRS)) at 1â month (short-term) and 3-4â months (mid-term) were compared with preoperative mRS (before the procedure). Mid-term angiographic follow-up was performed assessing aneurysmal occlusion by the Montreal scale (complete occlusion, neck remnant, aneurysm remnant). RESULTS: Placement of the flow diverters was achieved in all patients. Two misdeployments of the flow diverters necessitated balloon dilation in two patients, which was associated with stent delivery in one patient. Permanent morbidity related to treatment was 6.9% (2/29), transient morbidity was 10.3% (3/29) and there were no deaths resulting from the treatment. One patient died from a myocardial infarct 4â weeks after the procedure. 25/29 patients (86.2%) had a good final functional outcome, 26/29 (89.7%) had an unchanged functional outcome and 2/29 patients (6.9%) had clinical worsening. Angiographic follow-up showed complete occlusion in 17/28 patients (60.7%), neck remnants in 6/28 patients (21.4%) and residual aneurysms in 5/28 (17.9%). CONCLUSIONS: Flow diverter placement is feasible and safe in patients with recanalized and multitreated aneurysms. The procedure is associated with a high percentage of good functional outcomes as well as good mid-term anatomical results (82.1%).