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Rodríguez-López A, Gimeno I, Vila S, Seoane A, Ballenilla F, Ramos A, Hilario A, Núñez N, Camacho A, Simón R. Mechanical Thrombectomy for Acute Stroke in a 2-Month-Old Patient and Review of the Literature in Infancy. Neuropediatrics 2022; 53:376-380. [PMID: 35512844 DOI: 10.1055/a-1844-8780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Mechanical thrombectomy (MT) in pediatric stroke is supported by studies in adults, but there is controversy regarding younger patients. The main growth of intracranial vessels occurs up to 2 years when there can be more difficulties in MT.Description of the MT performed in a 2-month-old patient-the youngest infant published to date. We also review the literature on MT for stroke in infants.A 2-month-old patient presented with an awakening stroke secondary to an occlusion of the M1 segment of the left middle cerebral artery. A successful MT was performed with an aspiration device without clinically significant complications. An etiological study was completed, and neuroimaging showed focal cerebral arteriopathy. The 3-month outcome was excellent: the pediatric modified Rankin score was 0.Including this case, MT for acute stroke has been reported in only 10 infants. MT was successful in 90%, mostly using adult conventional stent retrievers. There were complications only in patients with mechanical circulatory support (MCS) devices; three patients died due to hemorrhagic transformation after MT and one patient died due to recurrent ischemic stroke.MT seems effective and safe in infants similarly to other pediatric ages. In children under 2 years of age, the presence of comorbidities requiring MCS devices is the main factor underlying poor prognosis.
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Affiliation(s)
| | - Isabel Gimeno
- Department of Pediatrics, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Sara Vila
- Department of Pediatrics, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Andrea Seoane
- Department of Pediatrics, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Federico Ballenilla
- Department of Radiology, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Ana Ramos
- Department of Radiology, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Amaya Hilario
- Department of Radiology, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Noemí Núñez
- Department of Neurology, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Ana Camacho
- Department of Neurology, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Rogelio Simón
- Department of Neurology, Hospital Universitario 12 de Octubre, Madrid, Spain
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Heit JJ, Muthusami P, Chandra RV, Hui F, Negrotto M, Lee S, Wasserman BA, Abruzzo TA. Reperfusion Therapies for Children With Arterial Ischemic Stroke. Top Magn Reson Imaging 2021; 30:231-243. [PMID: 34613946 DOI: 10.1097/rmr.0000000000000273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
ABSTRACT Modern hyperacute reperfusion therapies including intravenous thrombolysis and mechanical thrombectomy have transformed the management of arterial ischemic stroke (AIS) in adults. Multiple randomized clinical trials have demonstrated that these therapies enable remarkable improvements in clinical outcome for properly selected patients with AIS. Because pediatric patients were excluded from predicate clinical trials, there is a conspicuous lack of data to guide selection of therapies and inform age-adjusted and pathology-oriented treatment modifications for children. Specifically, technical guidance concerning treatment eligibility, drug dosing, and device implementation is lacking. This review aims to outline important features that differentiate pediatric AIS from adult AIS and provide practical strategies that will assist the stroke specialist with therapeutic decision making.
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Affiliation(s)
- Jeremy J Heit
- Department of Radiology, Stanford University Medical Center, Stanford, CA.,Department of Neurosurgery, Stanford University Medical Center, Stanford, CA
| | | | - Ronil V Chandra
- Monash University Medical Center, Monash University, Melbourne, Australia
| | - Ferdinand Hui
- Johns Hopkins University Medical Center, Baltimore, MD
| | | | - Sarah Lee
- Department of Neurology and Neurological Sciences, Stanford University Medical Center, Stanford, CA
| | | | - Todd A Abruzzo
- Barrow Neurological Institute at Phoenix Children's Hospital, Phoenix, AZ.,University of Arizona School of Medicine, Phoenix, AZ.,Mayo Clinic College of Medicine, Phoenix, AZ
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Sun LR, Harrar D, Drocton G, Castillo-Pinto C, Gailloud P, Pearl MS. Endovascular therapy for acute stroke in children: age and size technical limitations. J Neurointerv Surg 2021; 13:794-798. [PMID: 33832970 DOI: 10.1136/neurintsurg-2021-017311] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/23/2021] [Accepted: 03/29/2021] [Indexed: 01/18/2023]
Abstract
Endovascular therapies for acute childhood stroke remain controversial and little evidence exists to determine the minimum age and size cut-off for thrombectomy in children. Despite this, an increasing number of reports suggest feasibility of thrombectomy in at least some children by experienced operators. When compared with adults, technical modifications may be necessary in children owing to differences in vessel sizes, tolerance of blood loss, safety of contrast and radiation exposure, and differing stroke etiologies. We review critical considerations for neurologists and neurointerventionalists when treating pediatric stroke with endovascular therapies. We discuss technical factors that may limit feasibility of endovascular therapy, including size of the femoral and cervicocerebral arteries, which contributes to vasospasm risk. The risk of femoral vasospasm can be assessed by comparing catheter outer diameter with estimated femoral artery size, which can be estimated based on the child's height. We review evidence supporting specific strategies to mitigate cervicocerebral arterial injury, including technique (stent retrieval vs direct aspiration) and device size selection. The importance of and strategies for minimizing blood loss, radiation exposure, and contrast administration are reviewed. Attention to these technical limitations is critical to delivering the safest possible care when thrombectomy is being considered for children with acute stroke.
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Affiliation(s)
- Lisa R Sun
- Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Dana Harrar
- Neurology, Children's National Hospital, Washington, District of Columbia, USA
| | - Gerald Drocton
- Radiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | - Philippe Gailloud
- Radiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Monica S Pearl
- Radiology, Children's National Hospital, Washington, District of Columbia, USA.,Radiology and Pediatrics, The George Washington University School of Medicine and Health Sciences, Washington, District of Columbia, USA
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Fragata I, Morais T, Silva R, Nunes AP, Loureiro P, Diogo Martins J, Pamplona J, Carvalho R, Baptista M, Reis J. Endovascular treatment of pediatric ischemic stroke: A single center experience and review of the literature. Interv Neuroradiol 2021; 27:16-24. [PMID: 32903115 PMCID: PMC7903541 DOI: 10.1177/1591019920958827] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 08/18/2020] [Indexed: 12/31/2022] Open
Abstract
INTRODUCTION Mechanical thrombectomy is standard treatment for large vessel occlusion (LVO) in adults. There are no randomized controlled trials for the pediatric population. We report our single-center experience with thrombectomy of LVO in a series of pediatric patients, and perform a review of the literature. METHODS Retrospective review of consecutive pediatric thrombectomy cases between 2011 and 2018. Demographic variables, imaging data, technical aspects and clinical outcome were recorded. RESULTS In a period of 7 years, 7 children were treated for LVO at our center. Median age was 13 (2-17), and median Ped-NIHSS was 15 (3-24), and the median ASPECTS was 8 (2-10). Five patients had cardiac disease, and 2 of them were under external cardiac assistance. Median time from onset of symptoms to beginning of treatment was 7h06m (2h58m-21h38m). Five patients had middle cerebral artery occlusions. Thrombectomy was performed using a stentriever in 3 patients, aspiration in 3 patients, and combined technique in 1 patient. Six patients had good recanalization (TICI 2 b/3). There were no immediate periprocedural complications. At 3 months, 4 patients (57%) were independent (mRS score <3). Two patients died, one after haemorrhagic transformation of an extensive MCA infarct, and one due to extensive brainstem ischemia in the setting of varicella vasculitis. DISCUSSION Selected pediatric patients with LVO may be treated with mechanical thrombectomy safely. In patients under external cardiac assistance and under anticoagulation, thrombectomy is the only alternative for treatment of LVO. A multidisciplinary approach in specialized pediatric stroke centers with trained neurointerventionalists are essential for good results.
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Affiliation(s)
- Isabel Fragata
- Neuroradiology Department, Centro Hospitalar Universitário
Lisboa Central, Lisboa, Portugal
| | - Teresa Morais
- Neuroradiology Department, Centro Hospitalar Universitário
Lisboa Central, Lisboa, Portugal
| | - Rita Silva
- Pediatric Neurology Department, Centro Hospitalar Universitário
Lisboa Central, Lisboa, Portugal
| | - Ana Paiva Nunes
- Stroke Unit, Centro Hospitalar Universitário Lisboa Central,
Lisboa, Portugal
| | - Petra Loureiro
- Pediatric Cardiology Department, Centro Hospitalar Universitário
Lisboa Central, Lisboa, Portugal
| | - José Diogo Martins
- Pediatric Cardiology Department, Centro Hospitalar Universitário
Lisboa Central, Lisboa, Portugal
| | - Jaime Pamplona
- Neuroradiology Department, Centro Hospitalar Universitário
Lisboa Central, Lisboa, Portugal
| | - Rui Carvalho
- Neuroradiology Department, Centro Hospitalar Universitário
Lisboa Central, Lisboa, Portugal
| | - Mariana Baptista
- Neuroradiology Department, Centro Hospitalar Universitário
Lisboa Central, Lisboa, Portugal
| | - João Reis
- Neuroradiology Department, Centro Hospitalar Universitário
Lisboa Central, Lisboa, Portugal
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Bhatia K, Kortman H, Blair C, Parker G, Brunacci D, Ang T, Worthington J, Muthusami P, Shoirah H, Mocco J, Krings T. Mechanical thrombectomy in pediatric stroke: systematic review, individual patient data meta-analysis, and case series. J Neurosurg Pediatr 2019; 24:558-571. [PMID: 31398697 DOI: 10.3171/2019.5.peds19126] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 05/24/2019] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The role of mechanical thrombectomy in pediatric acute ischemic stroke is uncertain, despite extensive evidence of benefit in adults. The existing literature consists of several recent small single-arm cohort studies, as well as multiple prior small case series and case reports. Published reports of pediatric cases have increased markedly since 2015, after the publication of the positive trials in adults. The recent AHA/ASA Scientific Statement on this issue was informed predominantly by pre-2015 case reports and identified several knowledge gaps, including how young a child may undergo thrombectomy. A repeat systematic review and meta-analysis is warranted to help guide therapeutic decisions and address gaps in knowledge. METHODS Using PRISMA-IPD guidelines, the authors performed a systematic review of the literature from 1999 to April 2019 and individual patient data meta-analysis, with 2 independent reviewers. An additional series of 3 cases in adolescent males from one of the authors' centers was also included. The primary outcomes were the rate of good long-term (mRS score 0-2 at final follow-up) and short-term (reduction in NIHSS score by ≥ 8 points or NIHSS score 0-1 at up to 24 hours post-thrombectomy) neurological outcomes following mechanical thrombectomy for acute ischemic stroke in patients < 18 years of age. The secondary outcome was the rate of successful angiographic recanalization (mTICI score 2b/3). RESULTS The authors' review yielded 113 cases of mechanical thrombectomy in 110 pediatric patients. Although complete follow-up data are not available for all patients, 87 of 96 (90.6%) had good long-term neurological outcomes (mRS score 0-2), 55 of 79 (69.6%) had good short-term neurological outcomes, and 86 of 98 (87.8%) had successful angiographic recanalization (mTICI score 2b/3). Death occurred in 2 patients and symptomatic intracranial hemorrhage in 1 patient. Sixteen published thrombectomy cases were identified in children < 5 years of age. CONCLUSIONS Mechanical thrombectomy may be considered for acute ischemic stroke due to large vessel occlusion (ICA terminus, M1, basilar artery) in patients aged 1-18 years (Level C evidence; Class IIb recommendation). The existing evidence base is likely affected by selection and publication bias. A prospective multinational registry is recommended as the next investigative step.
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Affiliation(s)
- Kartik Bhatia
- 1Department of Neuroradiology, Toronto Western Hospital
- Departments of2Interventional Neuroradiology and
| | - Hans Kortman
- 1Department of Neuroradiology, Toronto Western Hospital
| | - Christopher Blair
- 3Neurology, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | | | | | - Timothy Ang
- Departments of2Interventional Neuroradiology and
- 3Neurology, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | - John Worthington
- 3Neurology, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | - Prakash Muthusami
- 4Department of Interventional Radiology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Hazem Shoirah
- 5Department of Neurosurgery, Icahn School of Medicine at Mount Sinai; and
| | - J Mocco
- 6Department of Neurosurgery, The Mount Sinai Health System, New York, New York
| | - Timo Krings
- 1Department of Neuroradiology, Toronto Western Hospital
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