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Results: 1 to 10 of 11

Publication Record


Anaphylactoid Reactions After Instillation of Contrast Material Into the Urinary Tract: A Survey of Contemporary Practice Patterns and Review of the Literature.
Dai JC, Brisbane WG, Chang HC, Hsi RS, Harper JD
(2018) Urology 122: 58-63
MeSH Terms: Anaphylaxis, Contrast Media, Drug Hypersensitivity, Endoscopy, Humans, Incidence, Instillation, Drug, Practice Guidelines as Topic, Practice Patterns, Physicians', Societies, Medical, Surveys and Questionnaires, Urinary Tract, Urologists, Urology
Show Abstract · Added February 26, 2019
OBJECTIVE - To assess drug reactions (ADRs) encountered by practicing urologists for contrast instilled into the urinary collecting system, and to describe current practice patterns regarding contrast administration into the urinary tract for patients with known contrast allergies.
METHODS - Endourological Society members were e-mailed a web-based survey about their prior experience with contrast-related ADRs and practices for contrast administration into the urinary tract among patients with known intravenous contrast allergies. Chi-squared analysis was used to compare management patterns between patients with established allergies and those without.
RESULTS - An estimated 2300-2500 e-mails were reached, resulting in an estimated response rate of 6.3%-8%. Over 75% of respondents were fellowship trained. Average time in practice was 16 years, and respondents performed a mean of 6.7 urologic contrast studies per week. Among respondents, 32.6%, 14.7%, and 4.0% had treated at least 1 patient with a mild, moderate, or severe reaction, respectively. Contrast-related ADRs were most commonly associated with retrograde pyelogram (50%). For patients with known contrast allergies, 5.4% pursue additional work-up before administering contrast in the urinary tract. Pretreatment with antihistamine or steroids is used by 24.8% and 23.4%, respectively. When performing retrograde pyelograms for such patients, urologists are more likely to use dilute contrast (P = .003), but otherwise do not significantly alter technique.
CONCLUSION - Contrast ADRs are encountered not infrequently among practicing urologists. There is notable practice variation in the management of patients with known contrast allergies, though the overall perceived risk of contrast use in these patients is low, provided good technique is used.
Copyright © 2018 Elsevier Inc. All rights reserved.
0 Communities
1 Members
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14 MeSH Terms
Helicobacter pylori and its secreted immunomodulator VacA protect against anaphylaxis in experimental models of food allergy.
Kyburz A, Urban S, Altobelli A, Floess S, Huehn J, Cover TL, Müller A
(2017) Clin Exp Allergy 47: 1331-1341
MeSH Terms: Allergens, Anaphylaxis, Animals, Bacterial Proteins, CpG Islands, Cytokines, DNA Methylation, Disease Models, Animal, Food Hypersensitivity, Helicobacter pylori, Immunoglobulin E, Immunologic Factors, Male, Mice, Peanut Hypersensitivity, Spleen, T-Lymphocytes, Regulatory
Show Abstract · Added March 21, 2018
BACKGROUND - Food allergy is an increasingly common health problem in Western populations. Epidemiological studies have suggested both positive and negative associations between food allergy and infection with the gastric bacterium Helicobacter pylori.
OBJECTIVE - The objective of this work was to investigate whether experimental infection with H. pylori, or prophylactic treatment with H. pylori-derived immunomodulatory molecules, affects the onset and severity of food allergy, either positively or negatively.
METHODS - We infected neonatal C57BL/6 or C3H mice with H. pylori or treated animals with H. pylori components (bacterial lysate or the immunomodulator VacA) and subsequently subjected them to four different protocols for food allergy induction, using either ovalbumin or peanut extract as allergens for sensitization and challenge. Readouts included anaphylaxis scoring, quantification of allergen-specific serum IgE and IgG1 and of the mast cell protease MCPT1, as well as splenic T-helper-2 cell-derived cytokine production. Mesenteric lymph node CD4 FoxP3 regulatory T cells were subjected to flow cytometric quantification and sorting followed by qRT-PCR, and to DNA methylation analyses of the Treg-specific demethylated region (TSDR) within the FOXP3 locus.
RESULTS - Mice that had been infected with H. pylori or treated with H. pylori-derived immunomodulators showed reduced anaphylaxis upon allergen sensitization and challenge, irrespective of the allergen used. Most of the immunologic assays confirmed a protective effect of H. pylori. CD4 FoxP3 T cells were more abundant in protected mice and exhibited a stable Treg phenotype characterized by FOXP3 TSDR demethylation.
CONCLUSIONS AND CLINICAL RELEVANCE - Helicobacter pylori confers protection against the anaphylaxis associated with ovalbumin and peanut allergy and affects the epigenome of T cells, thereby promoting stable Treg differentiation and functionality. Prophylactic treatment with H. pylori-derived immunomodulators appears to be a promising strategy for food allergy prevention.
© 2017 John Wiley & Sons Ltd.
0 Communities
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17 MeSH Terms
An algorithm developed using the Brighton Collaboration case definitions is more efficient for determining diagnostic certainty.
Joshi D, Alsentzer E, Edwards K, Norton A, Williams SE
(2014) Vaccine 32: 3469-72
MeSH Terms: Adverse Drug Reaction Reporting Systems, Algorithms, Anaphylaxis, Humans, Students, Medical, Time Factors, Vaccination, Young Adult
Show Abstract · Added May 28, 2014
The Brighton Collaboration is a global research network focused on vaccine safety. The Collaboration has created case definitions to determine diagnostic certainty for several adverse events. Currently nested within multi-page publications, these definitions can be cumbersome for use. We report the results of a randomized trial in which the case definition for anaphylaxis was converted into a user-friendly algorithm and compared the algorithm with the standard case definition. The primary outcomes were efficiency and accuracy. Forty medical students determined the Brighton Level of diagnostic certainty of a sample case of anaphylaxis using either the algorithm or the original case definition. Most participants in both groups selected the correct Brighton Level. Participants using the algorithm required significantly less time to review the case and determine the level of diagnostic certainty [mean difference=107 s (95% CI: 13-200; p=0.026)], supporting that the algorithm was more efficient without impacting accuracy.
Copyright © 2014 Elsevier Ltd. All rights reserved.
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1 Members
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8 MeSH Terms
Severe cutaneous and neurologic toxicity in melanoma patients during vemurafenib administration following anti-PD-1 therapy.
Johnson DB, Wallender EK, Cohen DN, Likhari SS, Zwerner JP, Powers JG, Shinn L, Kelley MC, Joseph RW, Sosman JA
(2013) Cancer Immunol Res 1: 373-7
MeSH Terms: Adult, Aminoquinolines, Anaphylaxis, Antibodies, Monoclonal, Antineoplastic Combined Chemotherapy Protocols, Drug Eruptions, Female, Guillain-Barre Syndrome, Humans, Imiquimod, Indoles, Melanoma, Middle Aged, Nivolumab, Programmed Cell Death 1 Receptor, Skin Neoplasms, Sulfonamides, Vemurafenib
Show Abstract · Added March 20, 2014
Immune checkpoint inhibitors such as ipilimumab and targeted BRAF inhibitors have dramatically altered the landscape of melanoma therapeutics over the past few years. Agents targeting the programmed cell death-1/ligand (PD-1/PD-L1) axis are now being developed and appear to be highly active clinically with favorable toxicity profiles. We report two patients with BRAF V600E mutant melanoma who were treated with anti-PD-1 agents as first-line therapy without significant toxicity, followed by vemurafenib at disease progression. Both patients developed severe hypersensitivity drug eruptions with multi-organ injury early in their BRAF inhibitor treatment course. One patient subsequently developed acute inflammatory demyelinating polyneuropathy (AIDP) and the other developed anaphylaxis upon low-dose vemurafenib rechallenge. Further investigation of the immune response during combination or sequences of melanoma therapeutics is warranted. Furthermore, clinicians should maintain a high index of suspicion for these toxicities when vemurafenib is administered following an anti-PD-1 agent.
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2 Members
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18 MeSH Terms
Cetuximab-induced anaphylaxis and IgE specific for galactose-alpha-1,3-galactose.
Chung CH, Mirakhur B, Chan E, Le QT, Berlin J, Morse M, Murphy BA, Satinover SM, Hosen J, Mauro D, Slebos RJ, Zhou Q, Gold D, Hatley T, Hicklin DJ, Platts-Mills TA
(2008) N Engl J Med 358: 1109-17
MeSH Terms: Adult, Aged, Aged, 80 and over, Anaphylaxis, Antibodies, Monoclonal, Antibodies, Monoclonal, Humanized, Antineoplastic Agents, Case-Control Studies, Cetuximab, Cross Reactions, Disaccharides, Epitopes, ErbB Receptors, Female, Humans, Immunoglobulin E, Male, Middle Aged, Protein Binding, Protein Conformation
Show Abstract · Added March 5, 2014
BACKGROUND - Cetuximab, a chimeric mouse-human IgG1 monoclonal antibody against the epidermal growth factor receptor, is approved for use in colorectal cancer and squamous-cell carcinoma of the head and neck. A high prevalence of hypersensitivity reactions to cetuximab has been reported in some areas of the United States.
METHODS - We analyzed serum samples from four groups of subjects for IgE antibodies against cetuximab: pretreatment samples from 76 case subjects who had been treated with cetuximab at multiple centers, predominantly in Tennessee, Arkansas, and North Carolina; samples from 72 control subjects in Tennessee; samples from 49 control subjects with cancer in northern California; and samples from 341 female control subjects in Boston.
RESULTS - Among 76 cetuximab-treated subjects, 25 had a hypersensitivity reaction to the drug. IgE antibodies against cetuximab were found in pretreatment samples from 17 of these subjects; only 1 of 51 subjects who did not have a hypersensitivity reaction had such antibodies (P<0.001). IgE antibodies against cetuximab were found in 15 of 72 samples (20.8%) from control subjects in Tennessee, in 3 of 49 samples (6.1%) from northern California, and in 2 of 341 samples (0.6%) from Boston. The IgE antibodies were shown to be specific for an oligosaccharide, galactose-alpha-1,3-galactose, which is present on the Fab portion of the cetuximab heavy chain.
CONCLUSIONS - In most subjects who had a hypersensitivity reaction to cetuximab, IgE antibodies against cetuximab were present in serum before therapy. The antibodies were specific for galactose-alpha-1,3-galactose.
Copyright 2008 Massachusetts Medical Society.
0 Communities
3 Members
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20 MeSH Terms
High incidence of cetuximab-related infusion reactions in Tennessee and North Carolina and the association with atopic history.
O'Neil BH, Allen R, Spigel DR, Stinchcombe TE, Moore DT, Berlin JD, Goldberg RM
(2007) J Clin Oncol 25: 3644-8
MeSH Terms: Adult, Aged, Aged, 80 and over, Anaphylaxis, Antibodies, Monoclonal, Antibodies, Monoclonal, Humanized, Antineoplastic Agents, Cetuximab, Drug Eruptions, Drug Hypersensitivity, ErbB Receptors, Female, Humans, Infusions, Intravenous, Male, Middle Aged, North Carolina, Tennessee
Show Abstract · Added March 20, 2014
PURPOSE - To confirm the anecdotal observation that patients in North Carolina (NC) and Tennessee (TN) treated with cetuximab experience hypersensitivity reactions (HSR) at a much higher rate than are reported nationally and internationally (PATIENTS AND METHODS - Data from patients treated with cetuximab on clinical trials (n = 88) at three research sites were analyzed for grade 3 or 4 HSR. Additional information was obtained from medical records for patients treated with cetuximab at the University of North Carolina (Chapel Hill, NC) to determine whether history of other significant allergy was a risk factor for HSR to cetuximab.
RESULTS - Data for 88 patients on clinical trials and an additional 55 patients treated outside of trials were included in this analysis. Patients had a variety of tumor types. For the clinical trial group (n = 88), the overall rate of grade 3 to 4 HSR was 22%, significantly higher than the rate noted in any large published trial. All HSRs occurred during the first dose. There was a strong relationship between prior allergy history and chance of HSR.
CONCLUSION - At the sites in neighboring NC and TN studied, HSR was far more common than reported in national studies. History of prior allergy is a strong predictor of HSR. Further investigation of more specific predictors of HSR in the US middle south region is warranted, and patients being treated with cetuximab in this area should be observed particularly closely during their first infusion.
0 Communities
1 Members
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18 MeSH Terms
Treatment of Ménétrier's disease with a monoclonal antibody against the epidermal growth factor receptor.
Burdick JS, Chung E, Tanner G, Sun M, Paciga JE, Cheng JQ, Washington K, Goldenring JR, Coffey RJ
(2000) N Engl J Med 343: 1697-701
MeSH Terms: Anaphylaxis, Antibodies, Monoclonal, Contrast Media, ErbB Receptors, Fatal Outcome, Gastric Mucosa, Gastritis, Hypertrophic, Heart Arrest, Humans, Hypertension, Pulmonary, Male, Middle Aged, Parietal Cells, Gastric, Precancerous Conditions, Vomiting
Added April 12, 2016
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1 Members
0 Resources
15 MeSH Terms
Anaphylactic reaction following intravenous adenosine.
Shaw AD, Boscoe MJ
(1999) Anaesthesia 54: 608
MeSH Terms: Adenosine, Aged, Anaphylaxis, Anti-Arrhythmia Agents, Female, Humans
Added October 20, 2015
0 Communities
1 Members
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6 MeSH Terms
Bradykinin generation by dialysis membranes: possible role in anaphylactic reaction.
Schulman G, Hakim R, Arias R, Silverberg M, Kaplan AP, Arbeit L
(1993) J Am Soc Nephrol 3: 1563-9
MeSH Terms: Acrylic Resins, Anaphylaxis, Bradykinin, Cellulose, Enzyme-Linked Immunosorbent Assay, Factor XII, Humans, Kallikreins, Membranes, Artificial, Radioimmunoassay, Reference Values, Renal Dialysis, Uremia
Show Abstract · Added May 20, 2014
Several recent reports have described a high incidence of anaphylactic reactions in patients being dialyzed with high-flux membranes while simultaneously using angiotensin-converting enzyme inhibitors. Many of these reports implicate polyacrylonitrile (PAN) as the membrane commonly involved in these reactions. To elucidate potential mechanisms of these anaphylactic reactions, whether dialysis membranes can activate the Hageman factor-dependent (contact) pathways as assessed by the in vitro generation of activated Hageman factor (Hfa), as well as the formation of kallikrein and subsequent bradykinin generation was examined. Both cuprophane (CUP) and PAN membranes were able to activate Hageman factor and convert prekallikrein to kallikrein as measured by an ELISA against kallikrein-C1-inactivator complexes. Subsequently, the active kallikrein was able to cleave bradykinin from its endogenous substrate, high-molecular-weight kininogen. However, it was found that the PAN membrane consistently led to an earlier and significantly higher formation of Hfa and kallikrein when compared with CUP. Importantly, there was also a pronounced but transient generation of bradykinin by the PAN membrane, in contrast to slower bradykinin formation by CUP, with both normal and uremic blood. It was proposed that the early and vigorous bradykinin generation induced by the contact of blood with PAN could explain, in part, the pathogenesis of the reported anaphylactoid reactions.
0 Communities
1 Members
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13 MeSH Terms
Detection of the major urinary metabolite of prostaglandin D2 in the circulation: demonstration of elevated levels in patients with disorders of systemic mast cell activation.
Awad JA, Morrow JD, Roberts LJ
(1994) J Allergy Clin Immunol 93: 817-24
MeSH Terms: Anaphylaxis, Dinoprost, Drug Stability, Drug Storage, Female, Humans, Kinetics, Male, Mastocytosis, Niacin, Prostaglandin D2, Prostaglandins D, Time Factors, Urticaria Pigmentosa
Show Abstract · Added December 10, 2013
The symptoms and hemodynamic alterations that accompany episodes of systemic mast cell activation have been largely attributed to excessive prostaglandin (PG)D2 release. Quantification of the major urinary metabolite of PGD2 has been invaluable in elucidating a role for PGD2 in these clinical entities and in the biochemical evaluation of systemic mastocytosis. With the use of a modified mass spectrometric assay for the major urinary metabolite of PGD2, this metabolite was detected in plasma from 10 normal volunteers (3.5 +/- 1.4 pg/ml). Ingestion of niacin, which induces endogenous release of PGD2, increased plasma levels of this metabolite 6.3 to 33 times above the upper limit of normal by 2 hours. Thereafter, levels declined gradually but remained elevated for up to 6 to 8 hours. In contrast, circulating levels of 9 alpha, 11 beta-PGF2, the initial metabolite of PGD2, peaked by 30 minutes and returned to baseline by 2 hours. The clinical utility of measuring the major urinary metabolite in the circulation was demonstrated by detection of markedly increased levels in plasma and serum from patients with systemic mastocytosis and a patient with a severe type I allergic reaction. Thus in the biochemical evaluation of episodes of systemic mast cell activation and endeavors to further elucidate the role of PGD2 in human disease, there are kinetic advantages of measuring the major urinary metabolite of PGD2 in the circulation. One particular advantage is the evaluation of clinical events, which only in retrospect are suspected to be associated with excessive release of PGD2, yet plasma or serum was obtained proximate to the event.
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14 MeSH Terms