Antiphospholipid antibodies and cerebrovascular thrombosis in the pediatric population: Few answers to many questions

Lupus ◽  
2021 ◽  
pp. 096120332110214
Author(s):  
Georges El Hasbani ◽  
Ali T Taher ◽  
Nadine Sunji ◽  
Savino Sciascia ◽  
Imad Uthman

Most of the knowledge in pediatric antiphospholipid syndrome (APS) is derived from studies performed on the adult population. As in adults, antiphospholipid antibodies (aPL) can contribute to thrombosis, especially cerebrovascular thrombosis, in neonates and children. Since aPL have the potential to cross the placental barrier, and since the pediatric population is prone to infections, re-testing for their positivity is essential to specify their role in cerebrovascular thrombosis. In this review, we aimed at assessing the prevalence of aPL, criteria or non-criteria, in neonatal and childhood ischemic stroke and sinovenous thrombosis trying to find an association between aPL and cerebrovascular thrombosis in the neonatal and pediatric population. Also, we looked into the effect of aPL and anticoagulants/antiplatelets on the long term neurological outcomes of affected neonates or children. The questions regarding the prevalence of aPL among pediatric patients with cerebrovascular thrombosis, the relationship between the titers of aPL and incidence and recurrence of cerebrovascular events, the predictability of the long term neurological outcomes, and the most optimal anticoagulation plan are still to be answered. However, it is crucial for clinicians to screen neonates and children with cerebrovascular thrombosis for aPL and confirm their presence if positive.

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Rafael Peñalver Penedo ◽  
Marta Rupérez Lucas ◽  
Luis Antonio Álvarez-Sala Walther ◽  
Alicia Torregrosa Benavent ◽  
María Luisa Casas Losada ◽  
...  

Abstract Background Midregional-proadrenomedullin (MR-proADM) is a useful prognostic peptide in severe infectious pathologies in the adult population. However, there are no studies that analyze its utility in febrile urinary tract infection (fUTI) in children. An accurate biomarker would provide an early detection of patients with kidney damage, avoiding other invasive tests like renal scintigraphy scans. Our objective is to study the usefulness of MR-proADM as a biomarker of acute and chronic renal parenchymal damage in fUTI within the pediatric population. Methods A prospective cohort study was conducted in pediatric patients with fUTI between January 2015 and December 2018. Plasma and urine MR-proADM levels were measured at admission in addition to other laboratory parameters. After confirmation of fUTI, renal scintigraphy scans were performed during the acute and follow-up stages. A descriptive study has been carried out and sensitivity, specificity and ROC curves for MR-proADM, C-reactive protein, and procalcitonin were calculated. Results 62 pediatric patients (34 female) were enrolled. Scintigraphy showed acute pyelonephritis in 35 patients (56.5%). Of those patients, the median of plasmatic MR-proADM (P-MR-proADM) showed no differences compared to patients without pyelonephritis. 7 patients (11.3%) developed renal scars (RS). Their median P-MR-proADM levels were 1.07 nmol/L (IQR 0.66–1.59), while in patients without RS were 0.48 nmol/L (0.43–0.63) (p < 0.01). The AUC in this case was 0.92 (95% CI 0.77–0.99). We established an optimal cut-off point at 0.66 nmol/L with sensitivity 83.3% and specificity 81.8%. Conclusion MR-ProADM has demonstrated a poor ability to diagnose pyelonephritis in pediatric patients with fUTI. However, P-MR-proADM proved to be a very reliable biomarker for RS prediction.


1988 ◽  
Vol 68 (3) ◽  
pp. 409-416 ◽  
Author(s):  
Thomas G. Luerssen ◽  
Melville R. Klauber ◽  
Lawrence F. Marshall

✓ A series of 8814 head-injured patients admitted to 41 hospitals in three separate metropolitan areas were prospectively studied. Of these, 1906 patients (21.6%) were 14 years of age or less. This “pediatric population” was compared to the remaining “adult population” for mechanism of injury, admission Glasgow Coma Scale score, motor score, blood pressure, pupillary reactivity, the presence of associated injuries, and the presence of subdural or epidural hematoma. The relationship of each of these factors was then correlated with posttraumatic mortality. Except for patients found to have subdural hematoma and those who were profoundly hypotensive, the pediatric patients exhibited a significantly lower mortality rate compared to the adults, thus confirming this generally held view. This study indicates that age itself, even within the pediatric age range, is a major independent factor affecting the mortality rate in head-injured patients.


2011 ◽  
Vol 31 (5) ◽  
pp. E5 ◽  
Author(s):  
Geoffrey Appelboom ◽  
Stephen D. Zoller ◽  
Matthew A. Piazza ◽  
Caroline Szpalski ◽  
Samuel S. Bruce ◽  
...  

Traumatic brain injury (TBI) is the current leading cause of death in children over 1 year of age. Adequate management and care of pediatric patients is critical to ensure the best functional outcome in this population. In their controversial trial, Cooper et al. concluded that decompressive craniectomy following TBI did not improve clinical outcome of the analyzed adult population. While the study did not target pediatric populations, the results do raise important and timely clinical questions regarding the effectiveness of decompressive surgery in pediatric patients. There is still a paucity of evidence regarding the effectiveness of this therapy in a pediatric population, and there is an especially noticeable knowledge gap surrounding age-stratified interventions in pediatric trauma. The purposes of this review are to first explore the anatomical variations between pediatric and adult populations in the setting of TBI. Second, the authors assess how these differences between adult and pediatric populations could translate into differences in the impact of decompressive surgery following TBI.


2020 ◽  
Vol 12 (9) ◽  
pp. 893-896 ◽  
Author(s):  
Visish M Srinivasan ◽  
Caroline C Hadley ◽  
Marc Prablek ◽  
Melissa LoPresti ◽  
Stephanie H Chen ◽  
...  

BackgroundDiagnostic cerebral angiograms are increasingly being performed by transradial access (TRA) in adults, following data from the coronary literature supporting fewer access-site complications. Despite this ongoing trend in neuroangiography, there has been no discussion of its use in the pediatric population. Pediatric TRA has scarcely been described even for coronary or other applications. This is the first dedicated large study of transradial access for neuroangiography in pediatric patients.MethodsA multi-institutional series of consecutively performed pediatric transradial angiograms and interventions was collected. This included demographic, procedural, outcomes, and safety data. Data was prospectively recorded and retrospectively analyzed.ResultsThirty-seven diagnostic angiograms and 24 interventions were performed in 47 pediatric patients. Mean age, height, and weight was 14.1 years, 158.6 cm, and 57.1 kg, respectively. The radial artery measured 2.09+/-0.54 mm distally, and 2.09+/-0.44 mm proximally. Proximal and distal angiography were performed for both diagnostic and interventional application (17 distal angiograms, two distal interventions). Clinically significant vasospasm occurred in eight patients (13.1%). Re-access was successfully performed 11 times in seven patients. Conversion to femoral access occurred in five cases (8.2%). The only access-related complication was a small asymptomatic wrist hematoma after TR band removal.ConclusionsTransradial access in pediatric patients is safe and feasible. It can be performed successfully in many cases but carries some unique challenges compared with the adult population. Despite the challenge of higher rates of vasospasm and conversion to femoral access, it is worth exploring further, given the potential benefits.


2008 ◽  
Vol 1 (4) ◽  
pp. 296-304 ◽  
Author(s):  
David Hung-Chi Pan ◽  
Yu-Hung Kuo ◽  
Wan-Yuo Guo ◽  
Wen-Yuh Chung ◽  
Hsiu-Mei Wu ◽  
...  

Object Studies on the efficacy of arteriovenous malformation (AVM) radiosurgery have largely been conducted in the adult population. Clinically, the results may not always be applicable to pediatric patients. Moreover, studies involving the pediatric population have largely comprised small- (< 3 cm3) and medium-sized (3–10 cm3) AVMs. For large (> 10 cm3) AVMs in children, sparse radiosurgical results are available. The current study was conducted to further clarify the role of radiosurgery in the treatment of pediatric AVMs. Methods A retrospective analysis was performed of data obtained in 105 pediatric patients (< 18 years of age) with cerebral AVMs treated by Gamma Knife surgery (GKS) between 1993 and 2006. For statistical comparison the authors studied data acquired in 458 adult patients with AVMs treated during the same period. The patients underwent follow-up magnetic resonance imaging at 6-month intervals. Cerebral angiography was used to confirm the obliteration of the AVM. Results In pediatric patients, the AVM obliteration rate at 48 months after a primary GKS was 65%. Repeated GKS in those in whom primary treatments failed further ablated some AVMs, for an overall obliteration rate of 81%. The efficacy of GKS correlated with the size of the AVM: 91% for small, 86% for medium, and 64% for large AVMs. The treatments were associated with an 8% morbidity rate and < 1% mortality rate. Posttreatment hemorrhage occurred in 4 (4%) of 105 patients. Obliteration rates at 48 months of small and extremely large (> 20 cm3) AVMs were similar in the pediatric and adult groups, whereas AVMs between 3 and 10 cm3 responded less efficaciously in children (p = 0.042). The AVMs with volumes ranging from 10 to 20 cm3 were also associated with a lower obliteration rate in children at 48 months, but statistical significance was not reached (p = 0.279). Conclusions Gamma Knife surgery is an effective and safe treatment alternative for pediatric AVMs. The medium (3–10-cm3) and large (10–20-cm3) AVMs tend to respond less efficaciously than those of comparable size in adults.


Author(s):  
Shanna Swartwood ◽  
Gary R. Nelson ◽  
Audie C. Espinoza

AbstractNeurologic manifestations of severe acute respiratory syndrome coronavirus 2, the virus responsible for novel coronavirus 2019 (COVID-19) infection, have been frequently reported in the adult population but remain relatively rare in pediatric patients, specifically in regard to cerebrovascular accidents (CVAs). We present the case of a previously healthy 16-year-old adolescent boy with no preceding infectious symptoms who developed acute onset of left-sided weakness and slurred speech subsequently diagnosed with acute ischemic stroke (AIS). After performing a thorough diagnostic work-up, no clear etiology for AIS was identified. He was found to be COVID-19 positive by reverse transcription polymerase chain reaction upon admission. Accumulating evidence supports a link between COVID-19 and a systemic prothrombotic state suggesting pediatric patients who present with AIS and no other risk factors should be screened for this novel virus and potentially for extracranial sources of thrombi. As the rates of positive COVID-19 infection increase in the pediatric population, pediatricians and other pediatric subspecialists should be aware of the potential neurological and cerebrovascular complications of this novel virus to avoid delays in evaluation and intervention.


Blood ◽  
2010 ◽  
Vol 116 (21) ◽  
pp. 3664-3664
Author(s):  
Pablo Rendo ◽  
Erik Berntorp ◽  
David M. Keeling ◽  
Michael Makris ◽  
Cedric R. Hermans ◽  
...  

Abstract Abstract 3664 Objective: To evaluate the long-term safety of nonacog alfa in pediatric hemophilia B patients during usual use. Design/Methods: An open-label, multicenter, prospective registry was conducted in 9 European countries to evaluate the safety of nonacog alfa in patients with hemophilia B in a usual-use setting. The registry was initiated in March 2002, with a period of enrollment of 7 years. Patients had received at least 1 dose of the original formulation of BeneFIX or a newer, reformulated version of the product. Of 218 patients enrolled in the registry, 66 (30.3%) were pediatric patients <18 years of age. Results: A total of 41 (62.1%) of the pediatric patients completed the registry per protocol. Seven events of special interest (ESIs) occurred in 6 (9%) patients. Allergic reaction was the sole ESI in 2 patients, lack of drug effect/low FIX recovery occurred in 3 patients, and 1 patient had an allergic reaction and developed a factor IX inhibitor. Two (3.0%) patients withdrew from the registry due to an ESI and/or a serious adverse event. Both were patients who developed an allergic reaction and one was the patient who also developed an inhibitor. Conclusion: The events reported for pediatric patients participating in this long-term prospective study demonstrated an acceptable safety profile for nonacog alfa in the pediatric population. The events did not differ in type, frequency, or severity from those previously observed in pediatric hemophilia B patients treated with nonacog alfa. Disclosures: Rendo: Pfizer: Employment. Keeling:Boehringer-Ingelheim:; Bayer: Membership on an entity's Board of Directors or advisory committees, lecture fee. Kollmer:Pfizer: Employment. Baumann:Pfizer: contract. Charnigo:Pfizer: Employment.


2014 ◽  
Vol 2014 ◽  
pp. 1-3
Author(s):  
B. H. Rimawi ◽  
R. H. Rimawi ◽  
M. Micallef ◽  
L. Pinckney ◽  
S. L. Fowler ◽  
...  

Patients infected with HIV are best categorized along a continuum from rapid progressors to HIV long-term nonprogressors. Long-term nonprogressors (LTNPs) are those in which AIDS develop many years after being infected with HIV, often beyond the 10-year mark, and represent 15–20% of the HIV infected patients. Many of these patients are able to control their infection and maintain undetectable viral loads for long periods of time without antiretroviral therapy. After a comprehensive literature search, we found extensive data related to HIV LTNPs in the adult population; however, very limited data was available related to LTNPs within the pediatric population. We present a case of pediatric HIV LTNPs, perinatally infected patient with undetectable viral loads, despite never receiving ART. Although there are not many instances of LTNPs among children, this child may be one, though she had intermittent viremia. She has continued to manifest serologic evidence of infection, with yearly ELISA and western blot positive tests. Based on the viral fitness studies that were performed, this case exemplifies an adolescent LTNP.


2019 ◽  
Vol 6 (5) ◽  
pp. 2152
Author(s):  
Mukul Singh ◽  
Manju Kumari

Background: Thyroid nodules are commonly present in adult population but are rare in pediatric age group. Inspite of being rare, thyroid nodule have a higher chance of malignancy in children. Thus, pediatric patients presenting with thyroid nodule found clinically or incidentally should be worked up to rule out any possibility of malignancy. The besthesda system for reporting thyroid cytopathology (TBSRTC) is widely used for reporting in adults. The present study aims to use TBSRTC for pediatric thyroid lesions reporting.Methods: All pediatric patients with age ≤ 18 years presenting with thyroid nodule during January 2018 to April 2019 were included in the study, fine needle aspiration (FNA) was done and findings were compared with histology. Statistical analysis was done using SPSS version 18.Results: 42 pediatric patient were included in the study, out of which 2.38% were malignant and suspicious for nmalignant each and 83% were benign.Conclusion: TBSRTC is quite sensitive and specific reporting guideline in pediatric population as in adult population with 100% accuracy in diagnosing benign and malignant cases. This is useful for avoiding unnecessary surgeries.


2021 ◽  
Vol 26 (8) ◽  
pp. 795-801
Author(s):  
Pooja Shah ◽  
Danielle McDonald

Vedolizumab is a humanized α4β7-integrin antagonist that is currently FDA-approved for adult inflammatory bowel disease. Limited evidence is available to guide use in pediatric patients, though off-label use is described in the form of retrospective reviews and case series. Collectively these publications begin to establish safety and efficacy data in pediatric patients &lt; 18 years of age. Additionally, dosing regimens described in the literature serve to guide weight-based dosing, which is not established at this time. This narrative review aims to summarize the available literature and provide recommendations for vedolizumab use in the pediatric population. A literature search was performed in PubMed (January 2014–December 2020) using the keyword vedolizumab. Based on the available evidence, vedolizumab appears to be a safe and moderately effective agent for treatment of refractory pediatric inflammatory bowel disease. Prospective, randomized trials are warranted to optimize dosing regimens and to establish long-term safety.


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