Omalizumab effectiveness in patients with a previously failed oral immunotherapy for severe milk allergy.

BACKGROUND: Some studies addressed the issue of omalizumab (OML) effectiveness in children starting their first oral immunotherapy (OIT) attempt but no study investigated the possible role of OML in the setting of patients with persisting milk allergy after a failed OIT attempt. METHODS: Single-center, prospective, observational study in a selected group of patients with a persisting and severe cow milk (CM) allergy associated with moderate allergic asthma, in which a previous OIT attempt had already failed. We performed an open oral food challenge (OFC) to identify patients who tolerated less than 173 mg of cow's milk protein. At the end of the recruitment, we have found four patients with a mean age of 16.25 years (8-24) who had suspended a previous OIT attempt and still reacted to an amount of CM equal or below 173 mg. Enrolled patients, after an 8-week course of OML along with a CM avoiding diet, underwent again an open OFC with CM to re-evaluate their threshold. Eventually, a new OIT course was started using the same OIT protocol of the previous attempt, maintaining cotreatment with OML for the first 12 months. For each patient, we documented: the threshold of CM at OFC, level of specific immunoglobulin E (IgE) and IgG4 for milk, and quality of life (QoL). RESULTS: During OIT the four patients experienced no reactions or extremely mild ones (oral itching, transient mild abdominal pain). All increased their threshold of CM in OML if compared with the baseline and maintained it long after that biologic therapy had discontinued. Specific milk proteins IgG4 levels significantly increased in all. CONCLUSION: In this series, OML was effective in patients with severe CM allergy who had previously failed OIT, allowing milk intake without adverse reactions and improving the QoL.

Young child with painful edema and purpura: a case report.

BACKGROUND: We reported the case of a two-old-year boy with a painful acute hemorrhagic edema. This is a self-limited benign condition: usually, affected children are well appearing and this strongly support the diagnosis. In the opposite, in our case, we observed a painful presentation of the edema. Therefore, we demonstrated that rarely, this condition could have also a painful presentation. CONCLUSIONS: This case report helps clinician to know that also acute hemorrhagic edema could have a painful presentation, so we must considered it in the differential diagnosis with sepsis, sickle cell crisis and child abuse. We believe that these findings will be of interest to pediatricians.

Follow-up study of patients admitted to the pediatric emergency department for chest pain.

Chest pain is a relatively common cause of admission to the Emergency Department, being related in most of the cases to benign conditions with only a minority of the cases affected by heart disease. Limited data are available about the follow up of these patients in terms of risk of recurrence of symptoms, Emergency Department re-admissions, level of impairment, and school absenteeism. We identified 761 children who visited our ED with the chief complaint of chest pain, equal to 0.68% of all admissions. Twenty-four patients were excluded for a previous history of cardiac disease. Eight (1%) patients were determined to have chest pain of cardiac origin. Ninety-seven percent of patients were successfully contacted by telephone: 69% agreed to answer the questionnaire. Of these, 33% experienced recurrent chest pain, up to 41% was forced to be absent from school, about 20% was limited in its daily activities, and about 20% repeated a cardiologic evaluation.Conclusion: Chest pain is mainly due to benign causes and is a recurrent symptom in a high percentage of patients, associated with re-admission and school absenteeism.What is Known:• Chest pain is a relatively common cause of admission to the Emergency Department.• It is mainly due to benign causes and is among the most common reasons for referral to the pediatric cardiologist.What is New:• Chest pain is a recurrent symptom associated with re-admission and school absenteeism.• As a family history of cardiac disease or exertional symptoms are a well-known red flag for chest pain of cardiac origin, school absenteeism should be considered a red flag for symptoms related to psychological distress in patients with non-cardiac chest pain.