The journal of allergy and clinical immunology. In practice
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J Allergy Clin Immunol Pract · Feb 2020
Bronchodilation Test with Inhaled Salbutamol Versus Bronchial Methacholine Challenge to Make an Asthma Diagnosis: Do They Provide the Same Information?
Methacholine bronchial challenge and bronchodilation to salbutamol are key tests in clinical practice to make asthma diagnosis. ⋯ We conclude that methacholine challenge outperforms reversibility to salbutamol to diagnose asthma without selecting patients with distinct inflammatory profile. Baseline airway obstruction predicts magnitude of reversibility but not hyperresponsiveness.
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J Allergy Clin Immunol Pract · Feb 2020
Searching for the Culprit Drugs for Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis from a Nationwide Claim Database in Korea.
Ethnic differences exist in relation to culprit drugs for Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN). We wanted to determine culprit drugs for SJS and TEN in Korean population. ⋯ We applied the ALDEN score to the claims database to identify possible culprit drugs for SJS and TEN in South Korea. This approach could shed light on research and policymaking for drug adverse reactions.
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J Allergy Clin Immunol Pract · Jan 2020
ReviewDiagnosis and Management of Patients with the α-Gal Syndrome.
The galactose-α-1,3-galactose (α-Gal) syndrome has many novel features that are relevant to diagnosis and management. In most cases, the diagnosis can be made on a history of delayed allergic reactions to mammalian meat and the blood test for IgE to the oligosaccharide α-Gal. In general, the diagnosis also dictates the primary treatment, that is, avoiding mammalian meat and also dairy in some cases. ⋯ Some mammalian-derived products such as heart valves, gelatin-based plasma expanders, and pancreatic enzymes are relevant to only select patient groups. A minority of cases may benefit from avoiding a wide range of products that are prepared with mammalian-derived constituents, such as gelatin. This review focuses on the nature of the syndrome, common challenges in diagnosis and management, and also gaps in our current knowledge that would benefit from additional investigation.
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J Allergy Clin Immunol Pract · Nov 2019
Meta AnalysisCross-Reactivity to Cephalosporins and Carbapenems in Penicillin-Allergic Patients: Two Systematic Reviews and Meta-Analyses.
There is no recent systematic review on the risk of cross-reactivity to cephalosporins and carbapenems in penicillin-allergic patients despite many new studies on the subject. All past reviews have several limitations such as not including any patient with a T-cell-mediated penicillin allergy. ⋯ Although it remains possible that these meta-analyses overestimated the risk of cross-reactivity, clinicians should consider the increased risk of cross-reactivity associated with aminocephalosporins, and to a lesser extent with intermediate-similarity-score cephalosporins, compared with the very low risk associated with low-similarity-score cephalosporins and all carbapenems when using beta-lactams in patients with a suspected or proven penicillin allergy.
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J Allergy Clin Immunol Pract · Nov 2019
Inhaler Technique in Low-Income, Inner-City Adults with Uncontrolled Asthma.
Poor inhaler technique has been shown to be associated with less asthma control and increased health care utilization. Little is known about the impact of inhaler technique on the most vulnerable patients. ⋯ In this group of patients with uncontrolled asthma, visually assessed inhaler technique was adequate in more than one-half. Although incorrect inhaler technique is generally common and must be routinely addressed, this study suggests that other factors that lead to poor control must be identified.