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Torres M, Schenk A. Lipoprotein (a): Does It Play a Role in Pediatric Ischemic Stroke and Thrombosis? Curr Atheroscler Rep 2023:10.1007/s11883-023-01102-5. [PMID: 37160656 DOI: 10.1007/s11883-023-01102-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/12/2023] [Indexed: 05/11/2023]
Abstract
PURPOSE OF REVIEW The goal of this paper is to describe the current understanding of lipoprotein (a) (Lp(a)), clinical practice guidelines, and the potential pathophysiological mechanisms that appear to increase the risk of cardiovascular and thromboembolic events, specifically within the pediatric population. RECENT FINDINGS The proatherogenic and pro-thrombotic properties of Lp(a) may increase the risk of atherothrombotic disease. In adults, atherosclerotic plaques increase thrombotic risk, but antifibrinolytic and proinflammatory properties appear to have an important role in children. Although it is not well established in neonates, recent studies indicate the risk of incident thrombosis and ischemic stroke are approximately fourfold higher in children with elevated Lp(a) which also increases their risk of recurrent events. Despite this higher risk, Pediatric Lp(a) screening guidelines continue to vary among different medical societies and countries. The inconsistency is likely related to inconclusive evidence outside of observational studies and the lack of specific therapies for children with elevated levels. Additional research is needed to improve understanding of the pro-thrombotic mechanisms of Lp(a), appropriate screening guidelines for Lp(a) in the pediatric population, and to elucidate the short and long term effects of elevated Lp(a) on the risk of pediatric thrombosis and stroke.
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Affiliation(s)
- Marcela Torres
- Department of Hematology and Oncology, Cook Children's Medical Center, 1500 Cooper St, Fort Worth, TX, 76104, USA.
| | - Allyson Schenk
- Department of Research Data Science and Analytics, Cook Children's Medical Center, 801 Seventh Avenue, Fort Worth, TX, 76104, USA
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Maher K, Persa L, Barry D, Lee-Eng J, Dichek H, Joshi S, Amlie-Lefond C. Thrombophilia screening in the routine clinical care of children with arterial ischemic stroke. Pediatr Blood Cancer 2023:e30381. [PMID: 37114761 DOI: 10.1002/pbc.30381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/09/2023] [Accepted: 04/02/2023] [Indexed: 04/29/2023]
Abstract
BACKGROUND Current guidelines recommend thrombophilia evaluation in childhood arterial ischemic stroke, but the impact of screening on management is unknown. The objective of the current study is to report the incidence of thrombophilia identified as part of routine clinical care in the context of available literature reports, and to describe the impact of a diagnosis of thrombophilia on patient management. METHODS We conducted a single-institution retrospective chart review for all children with arterial ischemic stroke occurring between January 1, 2009 and January 1, 2021. We collected thrombophilia screening results, stroke etiology, and management. We also reviewed the literature of thrombophilia testing in childhood arterial ischemic stroke published prior to June 30, 2022. Meta-analysis methods were used to assess prevalence rates. RESULTS Among children with thrombophilia testing performed, 5% (six of 122 patients) were factor V Leiden heterozygous, 1% (one of 102 patients) were prothrombin gene mutation heterozygous, 1% (one of 122) had protein S deficiency, 20% (23/116 patients) had elevated lipoprotein(a), 3% (three of 110 patients) had elevated homocysteine levels, and 9% (10/112) had elevated antiphospholipid antibodies, only two of whom had persistently elevated levels. There was no change in stroke therapy due to these results. Literature review revealed a wide range of prevalence for most thrombophilia traits, with high cross-study heterogeneity in most cases. CONCLUSIONS The rates of thrombophilia in our cohort were consistent with that expected in the general population. The identification of thrombophilia did not alter stroke care. However, some of the results were actionable, prompting evaluation for lipid disorders and patient-specific counseling on cardiovascular risk and risk for venous thrombosis.
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Affiliation(s)
- Kristin Maher
- Division of Hematology-Oncology, Department of Pediatrics, University of Washington School of Medicine, Seattle, Washington, USA
| | - Laurel Persa
- Department of Neurology, University of Washington School of Medicine, Seattle, Washington, USA
| | - Dwight Barry
- Clinical Analytics, Seattle Children's Hospital, Seattle, Washington, USA
| | - Jacqueline Lee-Eng
- Department of Neurology, University of Washington School of Medicine, Seattle, Washington, USA
| | - Helen Dichek
- Division of Endocrinology, Department of Pediatrics, University of Washington School of Medicine, Seattle, Washington, USA
| | - Sarita Joshi
- Division of Hematology-Oncology, Department of Pediatrics, University of Washington School of Medicine, Seattle, Washington, USA
| | - Catherine Amlie-Lefond
- Department of Neurology, University of Washington School of Medicine, Seattle, Washington, USA
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Singhal K, Bothra M, Kapoor S, Jhamb U, Mishra D. Metabolic Disorders among Children Presenting with Acute Encephalopathy. Indian J Pediatr 2022; 89:665-672. [PMID: 35254636 DOI: 10.1007/s12098-022-04087-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 10/27/2021] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To study the clinicoetiological profile of children presenting with acute noninfectious encephalopathy (NIE) and identify the proportion of children having inborn errors of metabolism (IEM). METHOD This descriptive cross sectional study was conducted in a tertiary care centre in Northern India. Consecutive children, aged more than 28 d and less than 12 y, with acute encephalopathy were enrolled after ruling out CNS infection. All children were evaluated on an internally validated structured proforma. A sequential pre-decided battery of tests was applied to determine the cause of encephalopathy. IEM suspects were subjected to TMS/GCMS followed by mutation analysis for confirmation. RESULTS Fifty children with noninfectious encephalopathy (NIE) were recruited and metabolic causes were detected in 9 of these children (18%), aged 3 to 42 mo, with female preponderance. The IEMs included lactic acidosis (4), glutaric aciduria (3), isovaleric academia (1), and hyperhomocysteinemia (1). History of previously affected siblings and consanguinity between the parents were important indicators of IEM. MS/MS and mutation analysis were the mainstay of diagnosis in these patients. IEMs contributed to the most common cause amongst cases of NIE. CONCLUSION IEMs constitute a significant proportion of NIE in India and a high index of suspicion is required to make the diagnosis.
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Affiliation(s)
- Kirti Singhal
- Department of Pediatrics, MAMC and LNJP Hospital, Delhi, 110002, India
| | - Meenakshi Bothra
- Department of Pediatrics, MAMC and LNJP Hospital, Delhi, 110002, India.
| | - Seema Kapoor
- Department of Pediatrics, MAMC and LNJP Hospital, Delhi, 110002, India
| | - Urmila Jhamb
- Department of Pediatrics, MAMC and LNJP Hospital, Delhi, 110002, India
| | - Devendra Mishra
- Department of Pediatrics, MAMC and LNJP Hospital, Delhi, 110002, India
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Sood A, Suthar R, Sahu JK, K Baranwal A, Saini AG, Saini L, Vyas S, Khandelwal N, Sankhyan N. Etiologic Profile of Childhood Stroke from North India: Is It Different from Developed World? J Child Neurol 2021; 36:655-663. [PMID: 33622066 DOI: 10.1177/0883073821991291] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To describe the etiology of childhood arterial-ischemic stroke from a developing country and assess short-term neurologic outcome. METHODS Prospective observational study. Consecutive children between the age of >28 days to <12 years, admitted with the diagnosis of arterial-ischemic stroke were enrolled during the study period from January 2017 to December 2018. Short-term neurologic outcome was assessed with Pediatric Cerebral Performance Category (PCPC) scale and Pediatric Stroke Outcome Measure (PSOM). RESULTS We enrolled 76 children with arterial-ischemic stroke, with a median age of 24 months (interquartile range 12-69), and 43 (57%) were boys. The most common risk factor for childhood arterial-ischemic stroke was arteriopathy in 59 (77%), followed by cardiovascular disorder in 12 (16%) children. Among 59 children with arteriopathy, 32 (42%) had infection-associated arteriopathies, 10 (13%) had mineralizing angiopathy, 10 (13%) had moyamoya disease. Pediatric stroke risk factors were classified according to Pediatric Stroke Classification and CASCADE primary classification. Short-term neurologic outcome was assessed at 3 months in 62 (82%) survivors. Among stroke survivors, 33 (61%) had sensory-motor deficits, and 24 (39%) had severe neurologic disability (PCPC ≥ 4). The presence of fever, encephalopathy, low Glasgow coma score at presentation, seizures, and infection-associated arteriopathy predicted severe neurologic disability at follow-up. CONCLUSION The risk factors for pediatric arterial-ischemic stroke are different from developed countries in our cohort. Infection-associated arteriopathies, mineralizing angiopathy, and moyamoya disease are the most common risk factors in our cohort. Two-thirds of pediatric stroke survivors have neurologic disability at short-term follow-up.
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Affiliation(s)
- Abhinandan Sood
- Pediatric Neurology Unit, Department of Pediatrics, 29751Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Renu Suthar
- Pediatric Neurology Unit, Department of Pediatrics, 29751Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Jitendra K Sahu
- Pediatric Neurology Unit, Department of Pediatrics, 29751Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Arun K Baranwal
- Pediatric Emergency and Intensive Care Unit, Department of Pediatrics, 29751Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Arushi G Saini
- Pediatric Neurology Unit, Department of Pediatrics, 29751Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Lokesh Saini
- Pediatric Neurology Unit, Department of Pediatrics, 29751Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Sameer Vyas
- Department of Radiodiagnosis, 29751Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Niranjan Khandelwal
- Department of Radiodiagnosis, 29751Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Naveen Sankhyan
- Pediatric Neurology Unit, Department of Pediatrics, 29751Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Babkina II, Strukova SM, Pinelis VG, Reiser G, Gorbacheva LR. New synthetic peptide protects neurons from death induced by toxic influence of activated mast cells via protease-activated receptor. BIOCHEMISTRY MOSCOW SUPPLEMENT SERIES A-MEMBRANE AND CELL BIOLOGY 2016. [DOI: 10.1134/s1990747816010037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Kopyta I, Zimny M, Sarecka-Hujar B. The role of biochemical risk factors in the etiology of AIS in children and adults. Int J Neurosci 2014; 125:875-84. [PMID: 25428197 DOI: 10.3109/00207454.2014.991925] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Stroke is an abrupt onset of both focal and global neurological deficits secondary to a vascular event lasting more than 24 h and with a vascular background as its only cause. It can be triggered by a rupture of a blood vessel, aneurysm (hemorrhagic stroke, HS), thrombosis or embolisms (ischemic stroke, IS). In developed countries, it is the third most common cause of death in the adult population. Stroke in children is a rare disorder with a reported frequency of about 3 cases per 100,000 children per year. The history of acute brain ischemia is burdened with neurological complications such as motor impairment, speech impairment and intellectual delay. Moreover, in children after AIS seizures and epilepsy are also quite common. Stroke is a heterogeneous disorder; its risk factors in adults are well known, however, in pediatrics, in more than 20% cases, the cause of stroke is impossible to determine. Due to the fact that stroke usually arises as a consequence of the cerebral thrombosis, many of the mechanisms responsible for its occurrence can be considered as risk factors. We have reviewed the recent case-control studies conducted on pediatric patients regarding biochemical risk factors such as elevated levels of homocysteine, fibrinogen, protein C, protein S, antithrombin III, lipoprotein(a), cholesterol and its fractions, and compared them with the results obtained from adult patients.
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Affiliation(s)
- Ilona Kopyta
- a School of Medicine in Katowice, Medical University of Silesia, Department of Paediatrics and Developmental Age Neurology , Chair of Paediatrics, Katowice , Poland
| | - Mikołaj Zimny
- b School of Medicine in Katowice, Medical University of Silesia, Department of Paediatrics and Developmental Age Neurology, Chair of Paediatrics, Student Scientific Association , Katowice , Poland
| | - Beata Sarecka-Hujar
- c School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Department of Drug Form Technology, Chair of Applied Pharmacy , Sosnowiec , Poland
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