scholarly journals Diagnosis of Peanut Allergy in Preschool Children: The Impact of Skin Testing With a Novel Composition of Peanuts

2021 ◽  
Vol 9 ◽  
Author(s):  
Mona I. Kidon ◽  
Soad Haj Yahia ◽  
Diti Machnes-Maayan ◽  
Yael Levy ◽  
Shirli Frizinsky ◽  
...  

Peanut allergy is an increasing concern in younger children. Available bedside diagnostic tools, i.e., prick tests with commercial extracts or peanut-containing foods have only limited predictive values. In a cohort of preschoolers with both a history of allergic reactions and sensitization to peanut proteins, we aimed to characterize the impact of skin tests with a novel composition of peanuts LPP-MH. Almost one quarter (27/110) of preschool children, with a history of allergic reactions to peanuts and positive standard IgE-mediated tests for peanut allergy, can tolerate the reintroduction of peanut proteins into their diet after resolving their allergy and, thus, can avoid adverse health outcomes associated with the false diagnosis. In the younger age group, a quarter of peanut allergic children, display a relatively high threshold, potentially enabling an easier and safer oral immunotherapy protocol in this window of opportunity in childhood. The use of the novel diagnostic skin test, LPP-MH, significantly improves the predictive value of outpatient evaluation for the outcomes of peanut challenge as well as the expected threshold at which the PA child will react, thus, making for a better informed decision of how, when, and where to challenge.

QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Zeinab Awad El-Sayed ◽  
Hanan Mohamed Abdel-Lateef ◽  
Rasha Hassan El-Owaidy ◽  
Shady Sarwat Shaker

Abstract Background Cow milk allergy (CMA) is the third most common food allergy that triggers anaphylactic reactions. Lactose intolerence, infantile colic and gastroesophageal reflux are the most common conditions which overlap with CMA causing both over and underdiagnosis. There are no wide population based epidemiological studies for the prevalence of CMA among Egyptian children. We sought to evaluate the prevalence of CMA among infants and preschool children and to correlate the parental reporting of CMA to the available diagnostic tools. Methods We conducted a cross sectional study that included 800 Egyptian children aged 3 months -5 years, who were enrolled consecutively from the primary care units and outpatient clinics of Children’s Hospital, Ain Shams University. Detailed history taking and clinical examination were done and those with suggestive history of CMA were subjected to further evaluation including skin prick test (SPT) and oral challenge test (OCT). Results The study comprised 390 girls (48.8%) and 410 boys (51.2%). Their weight centiles ranged between 5th and 97th percentiles, with median (IQR)=25(5-50) percentiles and mean(SD)=36.1(31.9). CM was introduced at age of 1-12 months, mean (SD): 9 (6) months with median (IQR): 12 (9-12) months. Forty (5%) subjects had suggestive history of CMA, 32 of whom completed their evaluation. The diagnosis of cow milk allergy was confirmed in 8/40 children (20%), comprising 1 % of the whole study sample. CMA was probably excluded at the time of the study in 21 subjects (52.5%), while diagnosis remained undetermined in 11/40 cases (27.5%) (8 refused to undergo SPT & OCT while 3 were lost to follow up). Conclusion The prevalence of CMA in Egyptian infants and preschool children is estimated to be around 1 % with possible overestimation of cow milk allergy diagnosis according to parental reports.


Pharmacy ◽  
2019 ◽  
Vol 7 (3) ◽  
pp. 97 ◽  
Author(s):  
Edoabasi U. McGee ◽  
Essie Samuel ◽  
Bernadett Boronea ◽  
Nakoasha Dillard ◽  
Madison N. Milby ◽  
...  

Quinolones are the second most common antibiotic class associated with drug-induced allergic reactions, but data on quinolone allergy are scarce. This review article discusses the available evidence on quinolone allergy, including prevalence, risk factors, diagnosis, clinical manifestations, cross-reactivity, and management of allergic reactions. Although the incidence of quinolone allergy is still lower than beta-lactams, it has been increasingly reported in recent decades, most likely from its expanded use and the introduction of moxifloxacin. Thorough patient history remains essential in the evaluation of quinolone allergy. Many diagnostic tools have been investigated, but skin tests can yield false-positive results and in vitro tests have not been validated. The drug provocation test is considered the test of choice to confirm a quinolone allergy but is not without risk. Evidence regarding cross-reactivity among the quinolones is limited and conflicting. Quinolone allergy can be manifested either as an immediate or delayed reaction, but is not uniform across the class, with moxifloxacin posing the highest risk of anaphylaxis. Quinolone should be discontinued when an allergic reaction occurs and avoided in future scenarios, but desensitization may be warranted if no alternatives are available.


CJEM ◽  
2018 ◽  
Vol 20 (S1) ◽  
pp. S107-S107
Author(s):  
J. E. Sinclair ◽  
S. Duncan ◽  
P. Price ◽  
L. Thomas ◽  
A. Willmore ◽  
...  

Introduction: Early recognition of sepsis can improve patient outcomes yet recognition by paramedics is poor and research evaluating the use of prehospital screening tools is limited. Our objective was to evaluate the predictive validity of the Regional Paramedic Program for Eastern Ontario (RPPEO) prehospital sepsis notification tool to identify patients with sepsis and to describe and compare the characteristics of patients with an emergency department (ED) diagnosis of sepsis that are transported by paramedics. The RPPEO prehospital sepsis notification tool is comprised of 3 criteria: current infection, fever &/or history of fever and 2 or more signs of hypoperfusion (eg. SBP<90, HR 100, RR24, altered LOA). Methods: We performed a review of ambulance call records and in-hospital records over two 5-month periods between November 2014 February 2016. We enrolled a convenience sample of patients, assessed by primary and advanced care paramedics (ACPs), with a documented history of fever &/or documented fever of 38.3°C (101°F) that were transported to hospital. In-hospital management and outcomes were obtained and descriptive, t-tests, and chi-square analyses performed where appropriate. The RPPEO prehospital sepsis notification tool was compared to an ED diagnosis of sepsis. The predictive validity of the RPPEO tool was calculated (sensitivity, specificity, NPV, PPV). Results: 236 adult patients met the inclusion criteria with the following characteristics: mean age 65.2 yrs [range 18-101], male 48.7%, history of sepsis 2.1%, on antibiotics 23.3%, lowest mean systolic BP 125.9, treated by ACP 58.9%, prehospital temperature documented 32.6%. 34 (14.4%) had an ED diagnosis of sepsis. Patients with an ED diagnosis of sepsis, compared to those that did not, had a lower prehospital systolic BP (114.9 vs 127.8, p=0.003) and were more likely to have a prehospital shock index >1 (50.0% vs 21.4%, p=0.001). 44 (18.6%) patients met the RPPEO sepsis notification tool and of these, 27.3% (12/44) had an ED diagnosis of sepsis. We calculated the following predictive values of the RPPEO tool: sensitivity 35.3%, specificity 84.2%, NPV 88.5%, PPV 27.3%. Conclusion: The RPPEO prehospital sepsis notification tool demonstrated modest diagnostic accuracy. Further research is needed to improve accuracy and evaluate the impact on patient outcomes.


2010 ◽  
Vol 3 (1) ◽  
pp. 16-23
Author(s):  
Ervin Ç. Mingomataj ◽  
Alketa H. Bakiri

Objective: To provide a comprehensive evaluation in patients with a convincing history of immediate insect allergy but negative skin test and/or specific IgE results, adequately addressing the question of how best to manage them. Data sources: Observational peer-reviewed studies and case reports were searched on Pub-Med database from 1998 up to March 2009 using the following keywords: Hymenoptera Allergy & Negative IgE (Negative Skin Tests). Study selection: Studies on supplemental diagnostic tests that provided data from patients with immediate hymenoptera allergy but negative conventional tests results to the offending allergens were selected. In this work, we also included studies providing additional relevant information regarding this issue. Results: Among 43 identified papers only 9 of them presented relevant original data, while the other papers were reviews. In the majority of the cases, the culprit insect was identified with in vitro tests such as Basophil Activation Test, Cellular Allergen Stimulation Test or Western blot, whereas in vivo (less frequently) with sting challenge or dialyzed venom skin test. Conclusions: The management of patients with a convincing history of immediate insect allergy but negative conventional test results requires an adaption of the guidelines including an incorporation of the novel diagnostic tools. Although cellular tests represent equivalent sensitivity and superior specificity as compared with standard ones, these tests still remain supplementary diagnostic tools. In a minority of cases (especially in the developing countries where cellular tests cannot be performed), venom immunotherapy in adult subjects could be taken into account based solemnly on the history of a clear patient’s identification of the culprit insect.


2013 ◽  
Vol 10 (3) ◽  
pp. 3-10
Author(s):  
L M Ogorodova ◽  
O S Fedorova ◽  
M M Fedotova ◽  
T A Evdokimova

Allergy to peanuts is an actual problem of practical health care associated with a significant prevalence and severity of peanut-allergic reactions, which can include anaphylaxis. The characteristic of peanut allergen components is presented in the review. Modern approaches to the diagnosis of allergy to peanuts reflected in the article. The article presents research findings on development and natural history of allergy to peanuts, clinical mmanifestations, also considered the priority therapeutic approaches.


Crisis ◽  
2016 ◽  
Vol 37 (4) ◽  
pp. 265-270 ◽  
Author(s):  
Meshan Lehmann ◽  
Matthew R. Hilimire ◽  
Lawrence H. Yang ◽  
Bruce G. Link ◽  
Jordan E. DeVylder

Abstract. Background: Self-esteem is a major contributor to risk for repeated suicide attempts. Prior research has shown that awareness of stigma is associated with reduced self-esteem among people with mental illness. No prior studies have examined the association between self-esteem and stereotype awareness among individuals with past suicide attempts. Aims: To understand the relationship between stereotype awareness and self-esteem among young adults who have and have not attempted suicide. Method: Computerized surveys were administered to college students (N = 637). Linear regression analyses were used to test associations between self-esteem and stereotype awareness, attempt history, and their interaction. Results: There was a significant stereotype awareness by attempt interaction (β = –.74, p = .006) in the regression analysis. The interaction was explained by a stronger negative association between stereotype awareness and self-esteem among individuals with past suicide attempts (β = –.50, p = .013) compared with those without attempts (β = –.09, p = .037). Conclusion: Stigma is associated with lower self-esteem within this high-functioning sample of young adults with histories of suicide attempts. Alleviating the impact of stigma at the individual (clinical) or community (public health) levels may improve self-esteem among this high-risk population, which could potentially influence subsequent suicide risk.


2015 ◽  
Vol 54 (03) ◽  
pp. 94-100 ◽  
Author(s):  
P. B. Musholt ◽  
T. J. Musholt

SummaryAim: Thyroid nodules > 1 cm are observed in about 12% of unselected adult employees aged 18–65 years screened by ultrasound scan (40). While intensive ultrasound screening leads to early detection of thyroid diseases, the determination of benign or malignant behaviour remains uncertain and may trigger anxieties in many patients and their physicians. A considerable number of thyroid resections are consecutively performed due to suspicion of malignancy in the detected nodes. Fine needle aspiration biopsy (FNAB) has been recommended for the assessment of thyroid nodules to facilitate detection of thyroid carcinomas but also to rule out malignancy and thereby avoid unnecessary thyroid resections. However, cytology results are dependent on experience of the respective cytologist and unfortunately inconclusive in many cases. Methods: Molecular genetic markers are already used nowadays to enhance sensitivity and specificity of FNAB cytology in some centers in Germany. The most clinically relevant molecular genetic markers as pre-operative diagnostic tools and the clinical implications for the intraoperative and postoperative management were reviewed. Results: Molecular genetic markers predominantly focus on the preoperative detection of thyroid malignancies rather than the exclusion of thyroid carcinomas. While some centers routinely assess FNABs, other centers concentrate on FNABs with cytology results of follicular neoplasia or suspicion of thyroid carcinoma. Predominantly mutations of BRAF, RET/PTC, RAS, and PAX8/PPARγ or expression of miRNAs are analyzed. However, only the detection of BRAF mutations predicts the presence of (papillary) thyroid malignancy with almost 98% probability, indicating necessity of oncologic thyroid resections irrespective of the cytology result. Other genetic alterations are associated with thyroid malignancy with varying frequency and achieve less impact on the clinical management. Conclusion: Molecular genetic analysis of FNABs is increasingly performed in Germany. Standardization, quality controls, and validation of various methods need to be implemented in the near future to be able to compare the results. With increasing knowledge about the impact of genetic alterations on the prognosis of thyroid carcinomas, recommendations have to be defined that may lead to individually optimized treatment strategies.


2009 ◽  
Vol 29 (02) ◽  
pp. 155-157 ◽  
Author(s):  
H. Hauch ◽  
J. Rischewski ◽  
U. Kordes ◽  
J. Schneppenheim ◽  
R. Schneppenheim ◽  
...  

SummaryInhibitor development is a rare but serious event in hemophilia B patients. Management is hampered by the frequent occurrence of allergic reactions to factor IX, low success rates of current inhibitor elimination protocols and the risk of development of nephrotic syndrome. Single cases of immune tolerance induction (ITI) including immunosuppressive agents like mycophenolat mofetil (MMF) or rituximab have been reported. We present a case of successful inhibitor elimination with a combined immune-modulating therapy and high-dose factor IX (FIX). This boy had developed a FIX inhibitor at the age of 5 years and had a history of allergic reactions to FIX and to FEIBA→. Under on-demand treatment with recombinant activated FVII the inhibitor became undetectable but the boy suffered from multiple joint and muscle bleeds. At the age of 11.5 years ITI was attempted with a combination of rituximab, MMF, dexamethasone, intravenous immunoglobulins and high-dose FIX. The inhibitor did not reappear and FIX half-life normalized. No allergic reaction, no signs of nephrotic syndrome and no serious infections were observed.


Author(s):  
C. Claire Thomson

This chapter traces the early history of state-sponsored informational filmmaking in Denmark, emphasising its organisation as a ‘cooperative’ of organisations and government agencies. After an account of the establishment and early development of the agency Dansk Kulturfilm in the 1930s, the chapter considers two of its earliest productions, both process films documenting the manufacture of bricks and meat products. The broader context of documentary in Denmark is fleshed out with an account of the production and reception of Poul Henningsen’s seminal film Danmark (1935), and the international context is accounted for with an overview of the development of state-supported filmmaking in the UK, Italy and Germany. Developments in the funding and output of Dansk Kulturfilm up to World War II are outlined, followed by an account of the impact of the German Occupation of Denmark on domestic informational film. The establishment of the Danish Government Film Committee or Ministeriernes Filmudvalg kick-started aprofessionalisation of state-sponsored filmmaking, and two wartime public information films are briefly analysed as examples of its early output. The chapter concludes with an account of the relations between the Danish Resistance and an emerging generation of documentarists.


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