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1.
Allergol Immunopathol (Madr) ; 52(4): 9-14, 2024.
Article in English | MEDLINE | ID: mdl-38970259

ABSTRACT

BACKGROUND: Allergy to lipid transfer proteins (LPT) is common in Mediterranean Europe, and it causes severe reactions in patients and affects multiple foods, impairing the quality of life. OBJECTIVE: This study aimed to describe the clinical and sensitization profile of patients with LTP syndrome and to determine a clinical pattern of severity. Molecular diagnosis is shown in a broad population through microarrays. MATERIAL AND METHODS: This study was performed at the LTP Allergy Consultation of the Reina Sofia Hospital in Murcia, Spain. We analyzed the patients' characteristics, reactions, cofactors, food implicated, quality of life, skin prick test to food and aeroallergens, and serologic parameters, such as total immunoglobulin E, peach LTP (Pru p 3 IgE) and immunoglobulin G4, and microarray Immuno Solid-phase Allergen Chip (ISAC). We related the severity of the reactions with other variables. RESULTS: We presented a series of 236 patients diagnosed with LTP allergy, 54.66% suffering from anaphylaxis, 36.02% from urticaria angioedema, and 9.32% from oral allergy syndrome. The most frequently implicated food was peach, producing symptoms in 70% of patients, followed by walnut in 55%, peanut in 45%, hazelnut in 44%, and apple in 38% patients. Regarding the food that provoked anaphylaxis, walnut was the most frequent instigator, along with peach, peanut, hazelnut, almond, sunflower seed, and apple. According to the severity of LPT reaction, we did not discover significant differences in gender, age, food group involved, and serologic parameters. We found differences in the presence of cofactors, with 48.84% of cofactors in patients with anaphylaxis, compared to 27.1% in patients without anaphylaxis and in family allergy background (P < 0.0001). CONCLUSION: In our series of patients, 54% presented anaphylaxis, and the foods that most frequently produced symptoms were peaches, apples, and nuts. Cofactors and family allergy backgrounds were associated with the severity of LPT reaction.


Subject(s)
Allergens , Antigens, Plant , Food Hypersensitivity , Immunoglobulin E , Skin Tests , Humans , Male , Female , Food Hypersensitivity/immunology , Food Hypersensitivity/diagnosis , Food Hypersensitivity/epidemiology , Immunoglobulin E/blood , Immunoglobulin E/immunology , Adult , Middle Aged , Antigens, Plant/immunology , Allergens/immunology , Spain/epidemiology , Adolescent , Plant Proteins/immunology , Young Adult , Carrier Proteins/immunology , Child , Immunoglobulin G/blood , Immunoglobulin G/immunology , Aged , Quality of Life , Anaphylaxis/immunology , Anaphylaxis/diagnosis , Anaphylaxis/etiology , Child, Preschool
3.
Int J Mol Sci ; 25(13)2024 Jul 03.
Article in English | MEDLINE | ID: mdl-39000431

ABSTRACT

Wheat allergy is a major type of food allergy with the potential for life-threatening anaphylactic reactions. Common wheat, Triticum aestivum (hexaploid, AABBDD genome), was developed using tetraploid wheat (AABB genome) and the ancient diploid wheat progenitor (DD genome)-Aegilops tauschii. The potential allergenicity of gluten from ancient diploid wheat is unknown. In this study, using a novel adjuvant-free gluten allergy mouse model, we tested the hypothesis that the glutenin extract from this ancient wheat progenitor will be intrinsically allergenic in this model. The ancient wheat was grown, and wheat berries were used to extract the glutenin for testing. A plant protein-free colony of Balb/c mice was established and used in this study. The intrinsic allergic sensitization potential of the glutenin was determined by measuring IgE response upon transdermal exposure without the use of an adjuvant. Clinical sensitization for eliciting systemic anaphylaxis (SA) was determined by quantifying the hypothermic shock response (HSR) and the mucosal mast cell response (MMCR) upon intraperitoneal injection. Glutenin extract elicited a robust and specific IgE response. Life-threatening SA associated and a significant MMCR were induced by the glutenin challenge. Furthermore, proteomic analysis of the spleen tissue revealed evidence of in vivo Th2 pathway activation. In addition, using a recently published fold-change analysis method, several immune markers positively and negatively associated with SA were identified. These results demonstrate for the first time that the glutenin from the ancient wheat progenitor is intrinsically allergenic, as it has the capacity to elicit clinical sensitization for anaphylaxis via activation of the Th2 pathway in vivo in mice.


Subject(s)
Allergens , Anaphylaxis , Glutens , Mice, Inbred BALB C , Th2 Cells , Triticum , Wheat Hypersensitivity , Animals , Anaphylaxis/immunology , Th2 Cells/immunology , Th2 Cells/metabolism , Mice , Triticum/immunology , Triticum/chemistry , Glutens/immunology , Wheat Hypersensitivity/immunology , Allergens/immunology , Immunoglobulin E/immunology , Immunoglobulin E/blood , Disease Models, Animal , Female , Mast Cells/immunology , Mast Cells/metabolism , Mast Cells/drug effects , Proteomics/methods
4.
Int J Mol Sci ; 25(13)2024 Jul 06.
Article in English | MEDLINE | ID: mdl-39000522

ABSTRACT

(1) Peanut allergy is associated with high risk of anaphylaxis which could be prevented by oral immunotherapy. Patients eligible for immunotherapy are selected on the basis of a food challenge, although currently the assessment of antibodies against main peanut molecules (Ara h 1, 2, 3 and 6) is thought to be another option. (2) The current study assessed the relationship between the mentioned antibodies, challenge outcomes, skin tests and some other parameters in peanut-sensitized children. It involved 74 children, divided into two groups, based on their response to a food challenge. (3) Both groups differed in results of skin tests, levels of component-specific antibodies and peanut exposure history. The antibody levels were then used to calculate thresholds for prediction of challenge results or symptom severity. While the antibody-based challenge prediction revealed statistical significance, it failed in cases of severe symptoms. Furthermore, no significant correlation was observed between antibody levels, symptom-eliciting doses and the risk of severe anaphylaxis. Although in some patients it could result from interference with IgG4, the latter would not be a universal explanation of this phenomenon. (4) Despite some limitations, antibody-based screening may be an alternative to the food challenge, although its clinical relevance still requires further studies.


Subject(s)
Arachis , Peanut Hypersensitivity , Humans , Peanut Hypersensitivity/diagnosis , Peanut Hypersensitivity/immunology , Child , Female , Male , Child, Preschool , Arachis/immunology , Arachis/adverse effects , Skin Tests/methods , Anaphylaxis/diagnosis , Anaphylaxis/immunology , Allergens/immunology , Immunoglobulin E/immunology , Immunoglobulin E/blood , Proof of Concept Study , Adolescent , Immunoglobulin G/blood , Immunoglobulin G/immunology , Antigens, Plant/immunology
5.
Pediatr Allergy Immunol ; 35(7): e14192, 2024 Jul.
Article in English | MEDLINE | ID: mdl-39007449

ABSTRACT

BACKGROUND: While food allergy (FA) has been increasingly recognized as a growing public health burden worldwide, epidemiological studies on FA in Japan are limited. METHODS: This was a noninterventional, observational study using the administrative claims data from 2010 to 2019 (10 years). Patients with physician-diagnosed FA in Japan (prevalent cohort) were divided into high-risk or low-risk cohorts using adrenaline prescription. The high-risk cohort was further divided into anaphylaxis or nonanaphylaxis cohort based on the occurrence of anaphylaxis or a serious allergic reaction (SAR) during 1 year after adrenaline prescription. The primary objective was to examine yearly prevalence of FA. The secondary objectives were to describe demographics/clinical characteristics and healthcare resource utilization (HCRU), to evaluate the number of occurrences of anaphylaxis/SAR in the high-risk cohort, and the impact of anaphylaxis/SAR on HCRU. RESULTS: The overall standardized prevalence rate was 0.325% (95% confidence interval [CI], 0.311-0.339) in 2010 and 0.797% (95% CI, 0.790-0.804) in 2019 and predominant in patients age <6 years (preschool; 3.377% [95% CI, 3.229-3.525] in 2010 and 5.726% [95% CI, 5.663-5.789] in 2019). Majority of FA patients (>80%) were children/adolescent throughout the 10 years. While high-risk cohort was a relatively minor population (8.5% in the prevalent cohort in 2019), the occurrence of anaphylaxis/SAR in the high-risk cohort was 227,690/100,000 patient-years. Multivariate analysis showed a significant increase in HCRU variables in the anaphylaxis versus nonanaphylaxis cohort (e.g., 2.08 [95% CI, 2.05-2.11] times more FA-related outpatient visits). CONCLUSIONS: Prevalence of FA increased in a statistically significant way from 2010 to 2019; 1.7-fold increase was observed in patients <6 years old. Patients in the high-risk cohort appear to have suffered from frequent anaphylaxis/SAR, highlighting an unmet medical need for FA patients at "high-risk," considering the unavailability of approved medications to prevent anaphylaxis/SAR.


Subject(s)
Anaphylaxis , Food Hypersensitivity , Humans , Food Hypersensitivity/epidemiology , Japan/epidemiology , Prevalence , Male , Female , Child, Preschool , Anaphylaxis/epidemiology , Child , Infant , Epinephrine/therapeutic use , Cohort Studies , Infant, Newborn , East Asian People
7.
Arerugi ; 73(5): 416-421, 2024.
Article in Japanese | MEDLINE | ID: mdl-39010201

ABSTRACT

A 14-year-old girl presented to our hospital with food-dependent exercise-induced anaphylaxis (FDEIA), possibly caused by rice. Despite experiencing four previous episodes of suspected FDEIA, she did not seek medical attention at her own discretion. On the fifth occurrence of symptoms, the general practitioner suspected FDEIA and referred the patient to our hospital. The only common factor in all five episodes was the consumption of rice, leading to the examination of the patient under suspicion of FDEIA caused by rice. Skin prick test results were positive for bran and polished rice, and exercise after consumption of polished rice resulted in anaphylaxis. Therefore, we diagnosed FDEIA caused by polished rice. Immunoblotting confirmed the presence of immunoglobulin E reacting with 14-16kDa rice bran protein in the patient's serum. The immunoblot inhibition test suggested that the rice bran protein to which the patient's serum reacted was also present in polished rice and no wash rice. As the patient may experience FDEIA after ingestion of no wash rice or rice flour, she was advised to eliminate these from her diet, treating them similarly to brown rice or polished rice.


Subject(s)
Anaphylaxis , Exercise , Food Hypersensitivity , Oryza , Humans , Female , Oryza/immunology , Oryza/adverse effects , Anaphylaxis/etiology , Anaphylaxis/immunology , Adolescent , Food Hypersensitivity/immunology , Food Hypersensitivity/etiology , Immunoglobulin E/immunology , Exercise-Induced Allergies
9.
Allergy Asthma Proc ; 45(4): 268-275, 2024 Jul 01.
Article in English | MEDLINE | ID: mdl-38982604

ABSTRACT

Background: Being stung by Hymenoptera species can cause life-threatening anaphylaxis. Although venom immunotherapy (VIT) seems to be the most effective treatment, its long-term efficacy, and risk factors for adverse events remain unclear. Objective: The objective was to investigate the long-term efficacy of VIT and evaluate adverse events and risk factors related to this. Method: Patients who received VIT in a tertiary-care adult allergy clinic between January 2005 and July 2022 were included. Patients' data were compared with those of individuals who had been diagnosed with bee and/or wasp venom allergy during the same period but had not received VIT and experienced field re-stings. Results: The study included 105 patients with venom allergy, of whom 68 received VIT and 37 did not receive VIT. Twenty-three patients (34%) completed 5 years of VIT, and the overall mean ± standard deviation VIT duration was 46.9 ± 20.9 months. Re-stings occurred in 5 of 23 patients who completed 5 years of VIT, and none of them developed a systemic reaction. Eighteen patients (40%) experienced re-stings after prematurely discontinuing VIT, of whom eight (44%) developed a systemic reaction. In the control group of patients who did not receive VIT, 26 patients (70.3%) experienced re-stings, and all had systemic reactions (100%), with no change in their median Mueller scores. There was a significant difference in the median Mueller score change between the patients who received VIT and the controls who did not (p = 0.016). A total of 13 patients (19%) experienced adverse events while receiving VIT, which were systemic reactions in nine honeybee VIT. The use of ß-blockers was determined as the most important risk factor (odds ratio 15.9 [95% confidence interval, 1.2-208.8]; p = 0.035). Conclusion: It was confirmed that VIT was effective in both reducing the incidence and the severity of re-sting reactions. These effects were more pronounced in the patients who completed 5 years of VIT.


Subject(s)
Anaphylaxis , Bee Venoms , Desensitization, Immunologic , Hymenoptera , Insect Bites and Stings , Humans , Male , Female , Desensitization, Immunologic/methods , Desensitization, Immunologic/adverse effects , Adult , Middle Aged , Animals , Insect Bites and Stings/immunology , Insect Bites and Stings/therapy , Treatment Outcome , Anaphylaxis/prevention & control , Anaphylaxis/etiology , Bee Venoms/immunology , Bee Venoms/therapeutic use , Bee Venoms/adverse effects , Hymenoptera/immunology , Risk Factors , Wasp Venoms/immunology , Wasp Venoms/adverse effects , Wasp Venoms/therapeutic use , Allergens/immunology , Allergens/administration & dosage , Young Adult , Aged , Arthropod Venoms/immunology , Arthropod Venoms/adverse effects , Arthropod Venoms/therapeutic use , Hypersensitivity/therapy
10.
Allergy Asthma Proc ; 45(4): e31-e37, 2024 Jul 01.
Article in English | MEDLINE | ID: mdl-38982605

ABSTRACT

Background: Fruit allergy usually presents with mild-to-moderate symptoms but serious systemic reactions, e.g., anaphylaxis, may also occur. Objective: This study aimed to examine the clinical and laboratory characteristics of patients with fruit allergy and fruit-induced anaphylaxis. Methods: Patients diagnosed with fruit allergy at Diskapi Hematology and Oncology Hospital and Bilkent City Hospital between January 2017 and January 2023 were included in the study. The diagnosis of anaphylaxis was made according to the European Allergy and Clinical Immunology Anaphylaxis Guideline. Results: During the study period, skin-prick tests with food allergens were performed on 9432 patients in our clinic, and fruit allergy was detected in 78 patients (0.82%). Five patients with inaccessible medical records were excluded from the study. 40 (54.8%) were boys. The median (interquartile range) age at the onset of symptoms was 72 months (12.5-144 months). Sixty-eight of the patients (93.2%) had a concomitant allergic disease, the most common of which was allergic rhinitis (n = 48 [65.8%]). The 73 patients had a history of reaction to 126 fruits. Twenty-five patients (19.8%) were allergic to multiple fruits. The most common fruit allergen was banana (22/126 [17.4%]), followed by peach (18/126 [14.2%]) and kiwi (17/126 [13.5%]). Mucocutaneous findings were observed most frequently after fruit consumption (120/126 [95.2%]). Anaphylaxis occurred in 17 patients (23.2%) with 21 fruits.The fruits most commonly associated with anaphylaxis were banana (6/21 [28.6%]) and kiwi (6/21 [28.6%]). Conclusion: Fruit allergy generally presents with mild symptoms, e.g., oral allergy syndrome, but severe systemic symptoms, e.g., anaphylaxis, can also be observed. Kiwi and banana are the fruits that most commonly cause anaphylaxis. Although more comprehensive studies are needed to comment on the development of tolerance, especially in patients with anaphylaxis, responsible fruit avoidance is still the most important strategy.


Subject(s)
Allergens , Anaphylaxis , Food Hypersensitivity , Fruit , Skin Tests , Humans , Anaphylaxis/diagnosis , Anaphylaxis/etiology , Anaphylaxis/epidemiology , Male , Female , Child , Food Hypersensitivity/diagnosis , Food Hypersensitivity/complications , Food Hypersensitivity/epidemiology , Fruit/adverse effects , Fruit/immunology , Child, Preschool , Allergens/immunology , Infant , Adolescent
11.
Nagoya J Med Sci ; 86(2): 345-350, 2024 May.
Article in English | MEDLINE | ID: mdl-38962415

ABSTRACT

Exercise induced anaphylaxis (EIA) is a rare and potentially life-threatening syndrome characterized by anaphylaxis provoked by exercise. Although vaginal delivery with labor pain is a physical strain for women and a possible trigger for EIA, no consensus exists on the management strategy of delivery in patients with EIA. A 28-year-old primigravida was referred to our hospital because of history of EIA, associated with pruritus, urticaria, and respiratory distress, exacerbated during physical activity. To avoid physical stress, we chose scheduled labor induction with epidural anesthesia, and administered prophylactic intravenous hydrocortisone. She delivered vaginally with no symptoms suggestive of EIA during labor. Since it is quite possible for patients with EIA to develop anaphylaxis during vaginal delivery with labor pain, epidural anesthesia and prophylactic steroid administration may be the most rational approaches for delivery in pregnant women with EIA.


Subject(s)
Anaphylaxis , Anesthesia, Epidural , Delivery, Obstetric , Exercise , Humans , Female , Anaphylaxis/etiology , Pregnancy , Adult , Anesthesia, Epidural/adverse effects , Exercise/physiology , Hydrocortisone/administration & dosage , Hydrocortisone/therapeutic use , Exercise-Induced Allergies
12.
Pediatr Allergy Immunol ; 35(7): e14195, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38989807

ABSTRACT

BACKGROUND: Complete avoidance of milk is the usual management for IgE-mediated cow's milk protein allergy (CMPA). A baked milk ladder is a method of dietary advancement therapy in IgE-mediated CMPA in Ireland, while in Spain, avoidance of milk awaiting natural tolerance acquisition through an oral food challenge (OFC) is employed. The aim of this study was to evaluate the use of dietary advancement therapy using a milk ladder compared with complete avoidance of milk for managing IgE-mediated CMPA. METHODS: This is a retrospective chart review of 371 pediatric patients from the population who have been treated for IgE-mediated CMPA between 2011 and 2020, with the milk ladder (Ireland) or complete avoidance followed by an OFC (Spain). The main outcome was the introduction of cow's milk. RESULTS: Milk ladder patients were 3.67 times more likely to succeed in comparison with milk avoidance (p < .001). Anaphylaxis during the treatment period occurred in 34 patients in the milk avoidance groups, while three patients in the milk ladder group experienced anaphylaxis due to accidental exposure to milk (p < .001). Failure to complete treatment was associated with a higher skin prick test in the milk avoidance group and a raised specific IgE in the milk ladder group. CONCLUSION: This is the first study that compares outcomes of dietary advancement therapy to complete avoidance for CMPA management, demonstrating that cow's milk can be successfully and safely reintroduced using dietary advancement therapy using a milk ladder.


Subject(s)
Immunoglobulin E , Milk Hypersensitivity , Milk Proteins , Humans , Milk Hypersensitivity/immunology , Milk Hypersensitivity/therapy , Retrospective Studies , Immunoglobulin E/blood , Immunoglobulin E/immunology , Female , Male , Child, Preschool , Animals , Milk Proteins/immunology , Child , Infant , Spain , Milk/immunology , Ireland , Anaphylaxis/prevention & control , Anaphylaxis/immunology , Anaphylaxis/etiology , Skin Tests , Immune Tolerance , Cattle , Allergens/immunology , Allergens/administration & dosage , Treatment Outcome
13.
Anaesthesiologie ; 73(7): 436-443, 2024 Jul.
Article in German | MEDLINE | ID: mdl-38904675

ABSTRACT

The beta-lactam antibiotics are some of the safest and best-tolerated antibiotic agents; however, many patients have reported allergies against penicillin. All beta-lactam antibiotics are only restrictively prescribed for these patients and alternative antibiotics are increasingly given, which carries the risk of negative clinical results and socioeconomic sequelae; however, over 95% of patients who reported an allergy to penicillin show a negative result in the allergy tests for penicillin and this antibiotic can safely be prescribed. The use of sensitive and specific instruments for identification of false penicillin allergies should be an important topic within the framework of antibiotic stewardship. Anesthesists can play a central role in the reduction of the enormous individual and public health burden associated with the classification of penicillin allergy by taking an appropriate medical history and a risk stratification for the identification of patients with a penicillin allergy. This overview article presents a possible delabelling algorithm within the framework of the clarification of a beta-lactam antibiotic allergy. The focus is on a structured allergy anamnesis using the penicillin allergy, five or fewer years ago, anaphylaxis/angioedema, severe cutaneous adverse reaction (SCAR) and treatment required for allergy episode (PEN-FAST) score.


Subject(s)
Anti-Bacterial Agents , Drug Hypersensitivity , Penicillins , Drug Hypersensitivity/diagnosis , Humans , Penicillins/adverse effects , Anti-Bacterial Agents/adverse effects , Anaphylaxis/diagnosis , Algorithms
14.
Medicina (Kaunas) ; 60(6)2024 Jun 12.
Article in English | MEDLINE | ID: mdl-38929588

ABSTRACT

Background and Objectives: Remimazolam, a novel benzodiazepine, is used for procedural sedation and general anesthesia due to its rapid onset and short duration of action. However, remimazolam-induced anaphylaxis (RIA) is a rare but severe complication. This study aimed to analyze RIA characteristics, focusing on cardiovascular collapse, and provide guidelines for safe remimazolam use. Methods: This study conducted a systematic review using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses 2020 guidelines. Research articles retrieved from PubMed on 26 May 2023, using the keywords 'remimazolam AND anaphylaxis' were evaluated based on the inclusion criteria of being written in English and aligning with the World Allergy Organization criteria for anaphylaxis, while studies not meeting these criteria were excluded. All published articles up to the search date were included without any date restrictions. The review analyzed factors such as age, sex, type of anesthesia, remimazolam dose (bolus/continuous), allergic symptoms and sign, epinephrine use, serum tryptase levels, and skin prick tests. Results: Among eleven cases, the mean age was 55.6 ± 19.6 years, with 81.8% male. Hypotension (81.8%) was the most common symptom, followed by bradycardia (54.5%) and desaturation (36.4%). Two patients experienced cardiac arrest. Serum tryptase levels confirmed anaphylaxis in ten cases. Epinephrine was the primary treatment, with intravenous doses ranging from 0.1 mg to 0.3 mg. Conclusions: Vigilance is crucial when administering remimazolam, adhering to recommended dosages, and promptly treating RIA with epinephrine. Further research is needed to understand the risk factors and refine the management strategies. Guidelines for safe remimazolam use are proposed.


Subject(s)
Anaphylaxis , Benzodiazepines , Humans , Anaphylaxis/drug therapy , Anaphylaxis/chemically induced , Male , Benzodiazepines/adverse effects , Benzodiazepines/therapeutic use , Female , Middle Aged , Hypnotics and Sedatives/adverse effects , Hypnotics and Sedatives/administration & dosage , Hypnotics and Sedatives/therapeutic use , Adult , Aged
15.
Arch Pediatr ; 31(5): 299-305, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38853084

ABSTRACT

AIM: The aim of the study was to assess the impact of a video training program (VTP) on primary school teachers' skills in using an adrenaline auto-injector (AAI), in correlation with knowledge regarding allergies, in cases of anaphylaxis. METHODS: A questionnaire on teachers' knowledge of allergies and on their level of confidence in using an AAI was distributed in primary schools in the French department of Manche (2173 teachers). A VTP followed this questionnaire. A second questionnaire was then distributed. Theoretical knowledge was assessed with a score out of 20. The confidence level was rated on a scale from 1 to 4. RESULTS: We collected 218 responses to the first questionnaire (10.0 % of the population included). The response rate to the second questionnaire was 4.7 % (103 participants), and from this group, 93 of the 103 participants viewed the video (90.3 %). Overall, 76 of the 218 (34.9 %) participants who completed the first questionnaire also completed the second questionnaire and watched the VTP. The number of participants who completed the whole survey was 76 (out of 2173, 3.5 %). The VTP significantly improved teachers' knowledge of the subject of allergies (the average score increased by 2.11 points, p < 0.001) as well as their confidence in recognizing the signs of a severe allergic reaction and in using an AAI: 85.4 % (n = 88) of self-confident teachers after the VTP versus 42.3 % (n = 92) before the VTP (p < 0.001). CONCLUSION: The VTP improved teachers' level of knowledge and confidence in using an AAI in cases of anaphylaxis. A similar VTP could be circulated more widely in schools to offer easy access to training tools about allergies.


Subject(s)
Anaphylaxis , Epinephrine , Health Knowledge, Attitudes, Practice , School Teachers , Humans , Epinephrine/administration & dosage , Female , Surveys and Questionnaires , France , Male , Video Recording , Hypersensitivity , Adult , Teacher Training/methods , Injections, Intramuscular/instrumentation , Injections, Intramuscular/methods , Self Administration
16.
BMC Anesthesiol ; 24(1): 204, 2024 Jun 08.
Article in English | MEDLINE | ID: mdl-38851690

ABSTRACT

BACKGROUND: Remimazolam is a recently developed, ultrashort-acting benzodiazepine that is used as a general anesthetic. Some cases of remimazolam anaphylaxis have been reported, but its characteristics are not fully understood. We present an interesting case report and review of the literature to better understand remimazolam anaphylaxis. CASE PRESENTATION: A 75-year-old man scheduled for robot-assisted gastrectomy was administered remimazolam for the induction of general anesthesia. After intubation, low end-expiratory CO2, high airway pressure and concurrent circulatory collapse were observed. Bronchoscopy revealed marked tracheal and bronchial edema, which we diagnosed as anaphylaxis. The patient suffered cardiac arrest after bronchoscopy but recovered immediately with intravenous adrenaline administration and chest compressions. We performed skin prick tests for the drugs used during induction except for remimazolam, considering the high risk of systemic adverse reactions to remimazolam. We diagnosed remimazolam anaphylaxis because the skin prick test results for the other drugs used during anesthesia were negative, and these drugs could have been used without allergic reactions during the subsequent surgery. Furthermore, this patient had experienced severe anaphylactic-like reactions when he underwent cardiac surgery a year earlier, in which midazolam had been used, but it was not thought to be the allergen at that time. Based on these findings, cross-reactivity to remimazolam and midazolam was suspected. However, the patient had previously received another benzodiazepine, brotizolam, to which he was not allergic, suggesting that cross-reactivity of remimazolam may vary among benzodiazepines. In this article, we reviewed the 11 cases of remimazolam anaphylaxis that have been described in the literature. CONCLUSIONS: Remimazolam is an ultrashort-acting sedative; however, it can cause life-threatening anaphylaxis. In addition, its cross-reactivity with other benzodiazepines is not fully understood. To increase the safety of this drug, further research and more experience in its use are needed.


Subject(s)
Anaphylaxis , Benzodiazepines , Hypnotics and Sedatives , Humans , Male , Aged , Anaphylaxis/chemically induced , Benzodiazepines/adverse effects , Hypnotics and Sedatives/adverse effects , Drug Hypersensitivity/diagnosis , Skin Tests/methods , Anesthesia, General/adverse effects
17.
Pediatr Allergy Immunol Pulmonol ; 37(2): 56-59, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38864768

ABSTRACT

Background: Povidone, a synthetic polymer commonly used in various products such as antiseptics, cosmetics, and medications, has been associated with allergic reactions, including anaphylaxis. Despite its widespread use, cases of povidone-induced anaphylaxis, especially in children, are under-recognized. This case report aims to highlight the importance of considering povidone allergy in pediatric patients presenting with anaphylaxis. Case Presentation: We describe a 3-year-old boy who experienced anaphylaxis following the application of povidone-iodine antiseptic solution to a leg wound. He presented with generalized urticaria, angioedema, dyspnea, and cough. Prompt diagnosis and management were initiated in the emergency department. He experienced the second anaphylaxis with povidone-containing eye drops prescribed during an ophthalmology visit. Conclusions: Povidone allergy should be considered in pediatric patients presenting with anaphylaxis, especially those with idiopathic reactions or multiple drug allergies. Clinicians should emphasize patient education on label reading and the provision of adrenaline autoinjectors to prevent life-threatening reactions associated with povidone exposure.


Subject(s)
Anaphylaxis , Anti-Infective Agents, Local , Povidone-Iodine , Humans , Anaphylaxis/chemically induced , Anaphylaxis/diagnosis , Male , Child, Preschool , Povidone-Iodine/adverse effects , Povidone-Iodine/administration & dosage , Anti-Infective Agents, Local/adverse effects , Anti-Infective Agents, Local/administration & dosage , Drug Hypersensitivity/diagnosis , Drug Hypersensitivity/etiology , Epinephrine/administration & dosage , Epinephrine/adverse effects , Ophthalmic Solutions/adverse effects
18.
Front Immunol ; 15: 1258369, 2024.
Article in English | MEDLINE | ID: mdl-38933266

ABSTRACT

Autoantigen-specific immunotherapy using peptides offers a more targeted approach to treat autoimmune diseases, but clinical implementation has been challenging. We previously showed that multivalent delivery of peptides as soluble antigen arrays (SAgAs) efficiently protects against spontaneous autoimmune diabetes in the non-obese diabetic (NOD) mouse model. Here, we compared the efficacy, safety, and mechanisms of action of SAgAs versus free peptides. SAgAs, but not their corresponding free peptides at equivalent doses, efficiently prevented the development of diabetes. SAgAs increased the frequency of regulatory T cells among peptide-specific T cells or induce their anergy/exhaustion or deletion, depending on the type of SAgA used (hydrolysable (hSAgA) and non-hydrolysable 'click' SAgA (cSAgA)) and duration of treatment, whereas their corresponding free peptides induced a more effector phenotype following delayed clonal expansion. Over time, the peptides induced an IgE-independent anaphylactic reaction, the incidence of which was significantly delayed when peptides were in SAgA form rather than in free form. Moreover, the N-terminal modification of peptides with aminooxy or alkyne linkers, which was needed for grafting onto hyaluronic acid to make hSAgA or cSAgA variants, respectively, influenced their stimulatory potency and safety, with alkyne-functionalized peptides being more potent and less anaphylactogenic than aminooxy-functionalized peptides. Immunologic anaphylaxis occurred in NOD mice in a dose-dependent manner but not in C57BL/6 or BALB/c mice; however, its incidence did not correlate with the level of anti-peptide antibodies. We provide evidence that SAgAs significantly improve the efficacy of peptides to induce tolerance and prevent autoimmune diabetes while at the same time reducing their anaphylactogenic potential.


Subject(s)
Diabetes Mellitus, Type 1 , Immune Tolerance , Mice, Inbred NOD , Peptides , Animals , Mice , Diabetes Mellitus, Type 1/immunology , Peptides/immunology , Peptides/administration & dosage , Female , Autoantigens/immunology , T-Lymphocytes, Regulatory/immunology , Immunotherapy/methods , Anaphylaxis/prevention & control , Anaphylaxis/immunology , Desensitization, Immunologic/methods , Desensitization, Immunologic/adverse effects
19.
Praxis (Bern 1994) ; 113(5): 134-137, 2024 May.
Article in German | MEDLINE | ID: mdl-38864101

ABSTRACT

INTRODUCTION: We describe the case of a 58-year-old patient who developed chest pain and an anaphylaktoide reaction after ingestion of contamined fish containing histamin. Histamin intoxication from food poisoning (also known as scombroid intoxication) can be mistaken for an anaphylactic reaction and occasionaly lead to cardiac symptoms, even in patients without atherosclerotic changes. This condition is called Kounis syndrom and has to be recognized as a separate syndrom with specific clinical features.


Subject(s)
Chest Pain , Electrocardiography , Humans , Middle Aged , Chest Pain/etiology , Diagnosis, Differential , Male , Kounis Syndrome/diagnosis , Kounis Syndrome/etiology , Animals , Anaphylaxis/chemically induced , Anaphylaxis/diagnosis , Foodborne Diseases/diagnosis , Foodborne Diseases/etiology , Marine Toxins/poisoning
20.
Pharmacol Res Perspect ; 12(3): e1224, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38864106

ABSTRACT

Coronavirus disease 2019 (COVID-19) caused by the severe acute respiratory syndrome coronavirus 2n first appeared in Wuhan, China in 2019. Soon after, it was declared a pandemic by the World Health Organization. The health crisis imposed by a new virus and its rapid spread worldwide prompted the fast development of vaccines. For the first time in human history, two vaccines based on recombinant genetic material technology were approved for human use. These mRNA vaccines were applied in massive immunization programs around the world, followed by other vaccines based on more traditional approaches. Even though all vaccines were tested in clinical trials prior to their general administration, serious adverse events, usually of very low incidence, were mostly identified after application of millions of doses. Establishing a direct correlation (the cause-effect paradigm) between vaccination and the appearance of adverse effects has proven challenging. This review focuses on the main adverse effects observed after vaccination, including anaphylaxis, myocarditis, vaccine-induced thrombotic thrombocytopenia, Guillain-Barré syndrome, and transverse myelitis reported in the context of COVID-19 vaccination. We highlight the symptoms, laboratory tests required for an adequate diagnosis, and briefly outline the recommended treatments for these adverse effects. The aim of this work is to increase awareness among healthcare personnel about the serious adverse events that may arise post-vaccination. Regardless of the ongoing discussion about the safety of COVID-19 vaccination, these adverse effects must be identified promptly and treated effectively to reduce the risk of complications.


Subject(s)
COVID-19 Vaccines , COVID-19 , Humans , COVID-19 Vaccines/adverse effects , COVID-19/prevention & control , COVID-19/epidemiology , Incidence , Vaccination/adverse effects , Anaphylaxis/chemically induced , Anaphylaxis/etiology , SARS-CoV-2/immunology , Guillain-Barre Syndrome/etiology , Myocarditis/etiology , Myocarditis/chemically induced
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