Treatment of Pediatric Takayasu arteritis with infliximab and cyclophosphamide: experience from an American-Brazilian cohort study.

BACKGROUND: Pediatric Takayasu arteritis (pTA) is difficult to treat and can lead to significant morbidity and mortality. OBJECTIVES: The objective of this study was to describe clinical characteristics for pTA and determine the safety and efficacy of cyclophosphamide (CYC) and infliximab (IFX) in pTA. METHODS: This was a retrospective analysis of 23 pTA patients seen at Children's Hospital Los Angeles and Universidade Federal de São Paulo-Brazil from 1990 to 2011. All patients fulfilled the 1990 American College of Rheumatology criteria for Takayasu arteritis. Disease activity was assessed using a modified National Institutes of Health score. RESULTS: Twenty-three patients (14 female and 9 male patients), mean age of 15.7 ± 6.0 years, were included. Cyclophosphamide was used before IFX treatment in 17 of 23 and IFX before CYC in 2 of 23 patients. The average time from disease onset to treatment initiation was 2.6 ± 2.4 years for CYC and 4.1 ± 2.4 years for IFX. Nine (60%) of 15 patients failed CYC, and of these 6 were changed to IFX with subsequent clinical stabilization in 5 (83%) of 6. Two patients initially treated with IFX were switched to CYC because of lack of appropriate response: 1 patient later worsened, and the other was lost to follow-up. Five opportunistic infections requiring hospitalization occurred in the CYC group, whereas none were observed in the IFX group. Patients in the IFX group were more likely to decrease or stop their corticosteroids when compared with the CYC patients. CONCLUSIONS: Cyclophosphamide is often used as initial treatment but has many adverse effects. In this retrospective case series, IFX was equivalent to CYC with fewer adverse effects, making IFX an alternative therapeutic option for pTA.

First seizure as late presentation of velo-cardio-facial syndrome.

Congenital hypoparathyroidism caused by velo-cardio-facial syndrome (VCFS) typically presents with hypocalcemia in the neonatal period associated with other characteristic findings. We report the case of an 8-year-old boy presenting a hypocalcemic seizure (ionized calcium, 0.65 mM); he had a history of velopharyngeal insufficiency and late development with language impairment; at presentation, minor dysmorphic features were noticed. Laboratory evaluation revealed a parathormone level of <1.0 pg/mL. VCFS was confirmed by fluorescence in situ hybridization study revealing the 22q11.2 deletion. High levels of calcium administration were needed to normalize serum calcium. In this case, signs of hypoparathyroidism only developed in late childhood, and the patient, despite the minor clinical signs of VCFS, remained symptom-free. He presented no cardiac malformations, immunologic abnormalities, or renal dysfunction often associated with this diagnosis. In a child with hypocalcemia, considering the hypothesis of VCFS, even if there are no other manifestations, is important both for clinical diagnosis and management and for genetic counseling.

Portuguese recommendations for the use of biological therapies in children and adolescents with juvenile idiopathic arthritis--December 2011 update.

OBJECTIVE: To update the Portuguese recommendations in order to assist the rational and safe prescribing of biological therapies in children and adolescents with Juvenile Idiopathic Arthritis (JIA) as more evidence and experience with these drugs are available. METHODS: The recommendations were formulated by Rheumatologists and Pediatricians, with experience in Pediatric Rheumatology, based on literature evidence and consensus opinion. The evidence was sought through a MEDLINE search. The retrieved results were discussed and a set of recommendations proposed. All propositions were extensively debated and the final recommendations formulated. RESULTS: A consensus was achieved regarding the eligibility, response criteria, maintenance of biologic thera py, and procedures in case of non-response. Also, specific recommendations concerning safety procedures before and while on biologic therapies were formulated. CONCLUSIONS: Thirteen recommendations for guidance biological therapy in children and adolescents with JIA were developed using both evidence-based and expert consensus. These recommendations will be updated as more evidence becomes available and more biological therapies are licensed.