Clarithromycin hypersensitivity in children: Is there a link with beta-lactam hypersensitivity?

Background: Clarithromycin hypersensitivity is reported as the most common cause of non-beta-lactam antibiotic allergy in children. Clarithromycin is frequently prescribed in cases of suspected beta-lactam hypersensitivity. Oral provocation tests stand as the gold standard to confirm drug hypersensitivity as diagnostic value of skin tests is variable. We analyzed the frequency of true clarithromycin hypersensitivity ratio and its relationship with beta-lactam allergy among children with suspected clarithromycin hypersensitivity and evaluated the diagnostic value of skin tests

FEEDING BEFORE BEDTIME IN PRESCHOOL CHILDREN WITH ASTHMA: DOES IT AFFECT UPPER RESPIRATORY SYMPTOMS AND ASTHMA CONTROL?

Objective: In this study, our aim was to investigate the effects of feeding habits such as the last feed before bedtime, feeding during sleep, bedtime, waking time and factors associated with the social environment on upper airway tract symptoms and asthma control

CASE REPORT: ANAPHYLAXIS DURING AZITHROMYCIN PROVOCATION

Clarithromycin and azithromycin are the most frequently prescribed oral macrolide antibiotics for children. Macrolides are relatively safe antibiotics due to their low allergenicity, but are nevertheless known to cause hypersensitivity reactions. Azithromycin appears to be responsible for severe reactions more often than clarithromycin. The most common reactions are maculopapular exanthems, and macrolide-induced anaphylaxis is exceptionally rare. Skin tests are not enough for the diagnosis of macrolide allergies, and oral provocation tests are necessary for a definite diagnosis. Here, we present a case of anaphylaxis during oral provocation with azithromycin, in which intolerance to amoxicillin-clavulanic acid and clarithromycin have been verified by provocation testing previously

Behind the scene: Paracetamol hypersensitivity in children.

Background Paracetamol, a non-steroidal anti-inflammatory drug, is commonly being used for fever and pain relief worldwide. The aim of this study was to evaluate children with a suspected history of paracetamol hypersensitivity. Methods Sixty patients who were referred to our clinic in between January 2015 and December 2018 with a suspected history of paracetamol hypersensitivity were included. Reactions were classified according to the European Network for Drug Allergy (ENDA)/Global Allergy and Asthma European Network classification and European Academy of Allergy and Clinical Immunology (EAACI)/ENDA Position Paper. Diagnoses were confirmed by skin tests and oral challenge tests (OCTs). In those with verified paracetamol hypersensitivity, an OCT with a strong COX-1 inhibitor was performed to classify the type of the reaction to refer as either selective or cross-intolerance hypersensitivity. A subsequent OCT with a selective COX-2 inhibitor was performed in those cross-intolerant patients to find out a safe alternative drug. Results Sixty OCTs with paracetamol were performed to patients with a median age of 8.5 years, and hypersensitivity to paracetamol was verified in 8 patients. Four children were classified as selective responders, and 3 were classified as cross-intolerant after OCT with a COX-1 inhibitor. Overall, skin test positivity for paracetamol was detected in only one patient, in whom OCT with paracetamol was negative. In all 3 cross-intolerant patients, a safe alternative non-steroidal anti-inflammatory drug was identified after an OCT with a selective COX-2 inhibitor. Conclusion OCT stands as the gold-standard procedure in verifying the diagnosis of patients with paracetamol-induced drug hypersensitivity, as well as, in defining the type of reactions and finding out safe alternative drugs