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Idiopathic anaphylaxis

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https://www.readbyqxmd.com/read/29701015/a-case-series-association-of-anaphylaxis-with-a-significant-decrease-in-platelet-levels-and-possible-secondary-risk-of-thrombosis
#1
Brian P Peppers, Anant Vatsayan, Jignesh Dalal, Tracey Bonfield, Haig Tcheurekdjian, Robert Hostoffer
INTRODUCTION: Anaphylaxis is a life threatening systemic inflammatory process that share mediators involved in the coagulation cascade. Platelet activating factor, known to increase platelet aggregation, has also been implicated as an important mediator of anaphylaxis. Although other inflammatory reactions are associated with an increased risk of thrombosis, anaphylaxis is currently not reported as one of them. Furthermore the role platelets may have in the perianaphylaxis period is not well understood...
April 26, 2018: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/29682366/whole-exome-sequencing-and-molecular-modeling-of-a-missense-variant-in-tnfaip3-that-segregates-with-disease-in-a-family-with-chronic-urticaria-and-angioedema
#2
Antoneicka L Harris, Patrick R Blackburn, John E Richter, Jennifer M Gass, Thomas R Caulfield, Ahmed N Mohammad, Paldeep S Atwal
Chronic urticaria is a common condition characterized by recurrent hives lasting several weeks or months and is usually idiopathic. Approximately half of the individuals with chronic urticaria will present with episodes of angioedema that can be severe and debilitating. In this report, we describe a 47-year-old Hispanic male who presented initially for an evaluation of chronic hives following hospitalization due to hive-induced anaphylaxis. The individual had a history significant for urticaria and angioedema beginning in his early 30s...
2018: Case Reports in Genetics
https://www.readbyqxmd.com/read/29338154/characteristics-etiology-and-treatment-of-pediatric-and-adult-anaphylaxis-in-iran
#3
Mohammad Nabavi, Mehrnoosh Lavavpour, Saba Arshi, Mohammad Hasan Bemanian, Hossein Esmaeilzadeh, Rasool Molatefi, Mahsa Rekabi, Javad Ahmadian, Narges Eslami, Sima Shokri, Kian Darabi, Gholam Reza Sedighi, Morteza Fallahpour
Despite the increasing prevalence of anaphylaxis, there is little information about the characteristics and practice of healthcare providers in treating anaphylaxis, so this study was conducted to record the characteristics and therapeutic approaches of anaphylaxis from May 2012 until April 2015, the data of all patients diagnosed with anaphylaxis in the Allergy department of three referral university hospitals in Tehran, Iran were recorded. Thereafter, the demographics, clinical features, triggers and therapeutic approach were evaluated...
December 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/29301119/cause-and-clinical-presentation-of-anaphylaxis-in-singapore-from-infancy-to-old-age
#4
Si Hui Goh, Jian Yi Soh, Wenyin Loh, Khai Pin Lee, Sze Chin Tan, Wei Jian Kenneth Heng, Irwani Ibrahim, Bee Wah Lee, Wen Chin Chiang
BACKGROUND: The study objective was to compare age-related differences in the cause and clinical presentation of anaphylaxis. METHODS: We conducted a prospective study of patients visiting the emergency department for anaphylaxis. Data were collected from 3 emergency departments from 1 April 2014 to 31 December 2015. Patient electronic records with the diagnoses of allergy, angioedema, urticaria, and anaphylaxis (ICD-9 codes 9953, 9951, 7080, 9950, 7089) were screened and cases fulfilling World Allergy Organisation criteria for anaphylaxis were included...
2018: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/29208545/il-24-is-a-common-and-specific-autoantigen-of-ige-in-patients-with-chronic-spontaneous-urticaria
#5
Oliver Schmetzer, Elisa Lakin, Fatih A Topal, Patricia Preusse, Denise Freier, Martin K Church, Marcus Maurer
BACKGROUND: The efficacy of omalizumab (anti-IgE) and increased IgE levels in patients with chronic spontaneous urticaria (CSU) suggest autoallergic mechanisms. OBJECTIVE: We sought to identify autoallergic targets of IgE in patients with CSU. METHODS: Serum samples of patients with CSU together with those of patients with idiopathic anaphylaxis and healthy control subjects (7 of each) were screened for IgE autoantibodies by using an array of more than 9000 proteins...
December 5, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29161766/identification-of-alpha-gal-sensitivity-in-patients-with-a-diagnosis-of-idiopathic-anaphylaxis
#6
M C Carter, K N Ruiz-Esteves, L Workman, P Lieberman, T A E Platts-Mills, D D Metcalfe
IgE antibodies (Ab) specific to galactose-α-1,3-galactose (alpha-gal) are responsible for a delayed form of anaphylaxis that occurs 3-6 hours after red meat ingestion. In a unique prospective study of seventy participants referred with a diagnosis of idiopathic anaphylaxis (IA), six (9%) were found to have IgE to alpha-gal. Upon institution of a diet free of red meat, all patients had no further episodes of anaphylaxis. Two of these individuals had indolent systemic mastocytosis (ISM). Those with ISM had more severe clinical reactions but lower specific IgE to alpha-gal and higher serum tryptase levels, reflective of the mast cell burden...
November 21, 2017: Allergy
https://www.readbyqxmd.com/read/29159565/a-comprehensive-review-on-mustard-induced-allergy-and-implications-for-human-health
#7
REVIEW
Akanksha Sharma, Alok K Verma, Rinkesh Kumar Gupta, Neelabh, Premendra D Dwivedi
Mustard is widely used in a variety of foods/food products to enhance the flavor and nutritional value that subsequently raise the risk of hypersensitivity reactions. Mustard allergy has been reported for many years and is increasing gradually especially in the areas where its consumption is comparatively higher, and it may be considered among the most important food allergies. A number of relevant clinical studies focused on mustard-induced allergic manifestations are summarized in the current review. In addition, the knowledge regarding the immunological as well as biochemical characteristics of mustard allergens that have been known till date and their cross-reactivity with other food allergens have also been discussed here...
November 20, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/29123910/management-of-pediatric-cannot-intubate-cannot-oxygenate
#8
Yohei Okada, Wataru Ishii, Norio Sato, Hirokazu Kotani, Ryoji Iiduka
Case: "Cannot intubate, cannot oxygenate" (CICO) is a rare, life-threatening situation. We describe a pediatric case of CICO and highlight some educational points.A 3-year-old boy who collapsed in the bathtub came to our emergency department. On admission, he went into cardiac arrest probably because of an airway obstruction. We judged his condition as CICO and carried out an emergent tracheostomy after several attempts to perform a cricothyroidotomy failed. We continued resuscitation; however, circulation did not return spontaneously...
October 2017: Acute Medicine & Surgery
https://www.readbyqxmd.com/read/29083476/pigeon-tick-bite-a-neglected-cause-of-idiopathic-nocturnal-anaphylaxis
#9
G Rolla, E Heffler, M Boita, V Doyen, M Mairesse, M Cvackova, S Debarbieux, J Kleine-Tebbe, M Ollert, M Raulf, A J Bircher, C Hilger
Anaphylaxis is a serious systemic allergic reaction with rapid onset and potentially life-threatening. We report in detail a case of severe nocturnal anaphylaxis due to pigeon tick bite showing the diagnostic value of the extract and the recombinant allergen in the diagnostic procedures (basophil activation test, IgE immunoblot, and experimental ImmunoCAP). Apart from the presented case, we describe that during the last 10 years, we have collected 28 cases of allergy to Argas reflexus from several European countries...
October 30, 2017: Allergy
https://www.readbyqxmd.com/read/28890861/idiopathic-anaphylaxis
#10
REVIEW
Bright I Nwaru, Sangeeta Dhami, Aziz Sheikh
Idiopathic anaphylaxis is a rare life-threatening disorder with symptoms similar to other forms of anaphylaxis. There is lack of a robust evidence base underpinning the treatment of anaphylaxis and even less so for idiopathic anaphylaxis. Much of the evidence therefore comes from relatively small case series and expert opinion. Idiopathic anaphylaxis is a diagnosis of exclusion, requiring a thorough history and careful diagnostic work-up investigating possible triggers and underlying predisposing factors. Key diagnostic tests include skin-prick testing, tests for specific-IgE, component-resolved diagnostics, and in some cases for allergen challenge tests...
2017: Current Treatment Options in Allergy
https://www.readbyqxmd.com/read/28780940/diagnosis-and-management-of-anaphylaxis-in-precision-medicine
#11
REVIEW
Mariana Castells
Anaphylaxis is the most severe and frightening of the allergic reactions, placing patients at high risk and demanding prompt recognition and immediate management by health care providers. Yet because its symptoms imitate those of other diseases, such as asthma and urticaria, current data suggest that its diagnosis is often missed, with underuse of tryptase measurement; its treatment is delayed, with little use of epinephrine; and its underlying cause or causes are poorly investigated. Deaths from anaphylaxis are difficult to investigate because of miscoding...
August 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28747843/omalizumab-s-role-in-the-treatment-of-steroid-dependent-malignant-idiopathic-anaphylaxis
#12
Öner Özdemir, Hayrunnisa Bekis Bozkurt, Bahri Elmas
If an anaphylaxis episode is not caused by an identifiable trigger, it is defined as idiopathic anaphylaxis. Although it is rarely observed, idiopathic anaphylaxis is clinically significant because of its morbidity and fatality risk. No effective treatment has been demonstrated to date. We report a girl aged 16 years who had had malignant idiopathic anaphylaxis since the age of 12 years who was treated successfully with omalizumab. Although she avoided allergic trigger foods such as tomato and seafood, she used to have these attacks twice a week...
June 2017: Türk Pediatri Arşivi
https://www.readbyqxmd.com/read/28671445/acute-and-chronic-urticaria-evaluation-and-treatment
#13
REVIEW
Paul Schaefer
Urticaria commonly presents with intensely pruritic wheals, sometimes with edema of the subcutaneous or interstitial tissue. It has a lifetime prevalence of about 20%. Although often self-limited and benign, it can cause significant discomfort, continue for months to years, and uncommonly represent a serious systemic disease or life-threatening allergic reaction. Urticaria is caused by immunoglobulin E- and non-immunoglobulin E-mediated release of histamine and other inflammatory mediators from mast cells and basophils...
June 1, 2017: American Family Physician
https://www.readbyqxmd.com/read/28670695/meat-allergy-associated-with-galactosyl-%C3%AE-1-3-galactose-%C3%AE-gal-closing-diagnostic-gaps-by-anti-%C3%AE-gal-ige-immune-profiling
#14
U Jappe, S Minge, B Kreft, A Ludwig, B Przybilla, A Walker, R Varga, P Seidel, T Biedermann, W Anemüller, A Kromminga, F Ruëff, H Merk, N Wagner, R Treudler, M Worm, I Waldmann, J Saloga, W M Becker, T Goldmann, T A Platts-Mills, A Homann
BACKGROUND: Glycoproteins and glycolipids of some mammalian species contain the disaccharide galactosyl-α-(1,3)-galactose (α-Gal). It is known that α-Gal is immunogenic in humans and causes glycan-specific IgG and also IgE responses with clinical relevance. α-Gal is part of the IgE-reactive monoclonal therapeutic antibody cetuximab (CTX) and is associated with delayed anaphylaxis to red meat. In this study, different α-Gal-containing analytes are examined in singleplex and multiplex assays to resolve individual sensitization patterns with IgE against α-Gal...
January 2018: Allergy
https://www.readbyqxmd.com/read/28629749/a-distinct-biomolecular-profile-identifies-monoclonal-mast-cell-disorders-in-patients-with-idiopathic-anaphylaxis
#15
Melody C Carter, Avanti Desai, Hirsh D Komarow, Yun Bai, Sarah T Clayton, Alicia S Clark, Karina N Ruiz-Esteves, Lauren M Long, Daly Cantave, Todd M Wilson, Linda M Scott, Olga Simakova, Mi-Yeon Jung, Jamie Hahn, Irina Maric, Dean D Metcalfe
BACKGROUND: Clonal mast cell disorders are known to occur in a subset of patients with systemic reactions to Hymenoptera stings. This observation has prompted the question of whether clonal mast cell disorders also occur in patients with idiopathic anaphylaxis (IA). OBJECTIVE: We sought to determine the prevalence of clonal mast cell disorders among patients with IA, criteria to identify those patients who require a bone marrow biopsy, and whether the pathogenesis of IA involves a hyperresponsive mast cell compartment...
January 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28583235/type-1-kounis-syndrome-in-a-patient-with-idiopathic-anaphylaxis
#16
Monica Sandhu, Jason Casselman, Brian Peppers, Haig Tcheurekdjian, Robert W Hostoffer
Anaphylactic insults that cause cardiovascular signs and symptoms have been defined as Kounis syndrome, which has been associated with specific triggered anaphylactic reactions. Kounis syndrome has not been described in patients with no evidence of coronary artery disease (type I Kounis) in a scenario of idiopathic anaphylaxis. We reported a case of a 65-year-old white woman with no evidence of coronary artery disease who experienced two myocardial infarctions on separate occasions attributable to idiopathic anaphylaxis...
June 1, 2017: Allergy & Rhinology
https://www.readbyqxmd.com/read/28465562/activation-of-the-ileal-neuroendocrine-tumor-cell-line-p-sts-by-acetylcholine-is-amplified-by-histamine-role-of-h3r-and-h4r
#17
Beatrix Pfanzagl, Diana Mechtcheriakova, Anastasia Meshcheryakova, Stephan W Aberle, Roswitha Pfragner, Erika Jensen-Jarolim
Neuroendocrine tumors may present with pseudoallergic reactions like diarrhea and idiopathic anaphylaxis. Here we present the P-STS human ileal neuroendocrine cell line as a model cell line for these tumors. Neuroendocrine markers and changes in cytoplasmic calcium concentration ([Ca(2+)]i) in response to several possible activators of 5-hydroxytryptamine (5-HT) release were analyzed. P-STS cells still expressed chromogranin A and synaptophysin after 2 years of culture. Tryptophan hydroxylase 1 mRNA and a low amount of 5-HT were also detected...
May 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28390586/an-analysis-of-anaphylaxis-cases-at-a-single-pediatric-emergency-department-during-a-1-year-period
#18
Christopher D Wright, Mindy Longjohn, Phillip L Lieberman, Jay Adam Lieberman
BACKGROUND: Case series of anaphylaxis can vary regarding causes, treatments, and follow-up of patients. Unfortunately, case series that are specific to the pediatric population are few. OBJECTIVE: To describe confirmed cases of pediatric anaphylaxis in patients presenting to a pediatric hospital emergency department (ED). METHODS: We identified all ED visits with the International Classification of Diseases, Ninth Revision (ICD-9) codes 995...
April 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28255467/type-1-kounis-syndrome-in-patient-with-idiopathic-anaphylaxis
#19
Tajda Keber, Jana Makuc, Gregor Sekavčnik
Kounis syndrome represents the concurrence of acute coronary syndromes or anginal pain with allergic, hypersensitivity, and anaphylactic reactions. It can be associated with normal coronary angiogram or preexistent coronary pathology. Idiopathic anaphylaxis is defined as anaphylaxis without any identifiable precipitating agent or event. We present a case of male who experienced attacks of dyspnoea, hypoxemia, hypotension, purple-red skin, and chest pain over several years. He was diagnosed with idiopathic anaphylaxis...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28012935/idiopathic-systemic-capillary-leak-syndrome-clarkson-disease
#20
REVIEW
Kirk M Druey, Samir M Parikh
In 1960, Dr Bayard Clarkson described a woman experiencing sporadic recurrent episodes of shock and anasarca. Plasma from an acute attack induced a shock-like syndrome when injected into rats. The enigmatic systemic capillary leak syndrome (SCLS) named for Dr Clarkson is characterized by transient and severe but reversible hemoconcentration and hypoalbuminemia caused by leakage of fluids and macromolecules into tissues. Although less than 500 cases of SCLS have been reported in the literature since 1960, the condition is probably underdiagnosed because of a lack of awareness and a high mortality without treatment...
September 2017: Journal of Allergy and Clinical Immunology
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