[An infant with a complicated infection of the umbilicus]. / Een zuigeling met een gecompliceerde navelontsteking.

BACKGROUND: An umbilical infection (omphalitis) is frequent in de neonatal period. The infection usually presents as a relatively mild cellulitis. However, in rare cases omphalitis has a complicated course. CASE DESCRIPTION: A 20-day-old infant was referred to our Emergency Department with a fever and red umbilicus. Our diagnosis was "omphalitis" and after taking cultures we started with flucloxacillin and gentamicin intravenously. Upon clinical deterioration, we added ceftazidime and performed an ultrasound of the abdomen. A urachal remnant was found. The umbilical swab was positive for Staphylococcus aureus, which we treated with flucloxacillin monotherapy until the infiltrate disappeared on ultrasound. CONCLUSION: A patient with an omphalitis should be referred to the pediatrician. Clinical admission, obtaining cultures and starting antibiotic treatment is necessary. A large number of health care providers are involved in the care during the neonatal period. Therefore, broad knowledge about prevention and early identification of this disease is important.

Nailfold capillary abnormalities in childhood-onset systemic lupus erythematosus: a cross-sectional study compared with healthy controls.

OBJECTIVES: For selection of high-risk systemic lupus erythematosus (SLE) patients it is necessary to obtain indicators of disease severity that predict disease damage. As in systemic sclerosis, nailfold capillary abnormalities could be such a biomarker in SLE. The primary objective of this cross-sectional study is to describe capillary abnormalities in childhood-onset SLE (cSLE) cohort (onset < 18 years) and compare them with matched healthy controls. The secondary objective is to correlate the observed capillary abnormalities with demographical variables in both cohorts and with disease-specific variables in cSLE patients. METHODS: Healthy controls were matched for ethnic background, age and gender. Videocapillaroscopy was performed in eight fingers with 2-4 images per finger. Quantitative and qualitative assessments of nailfold capillaroscopy images were performed according to the definitions of the EULAR study group on microcirculation in Rheumatic Diseases. RESULTS: Both groups (n = 41 cSLE-patients and n = 41 healthy controls) were comparable for ethnic background (p = 0.317). Counted per mm, cSLE-patients showed significantly more 'giants' (p = 0.032), 'abnormal capillary shapes' (p = 0.003), 'large capillary hemorrhages' (p < 0.001) and 'pericapillary extravasations' (p < 0.001). Combined 'abnormal capillary shapes and pericapillary extravasations' (in the same finger) were detected in 78% (32/41 patients). By qualitative analysis, 'microangiopathy' was detected in 68.3% (28/41) and a 'scleroderma pattern' in 17.1% (7/41) of the cSLE-patients (without scleroderma symptoms). The difference of percentage positive anti-RNP antibodies in the group with or without a scleroderma pattern was not significant (p = 0.089). The number of 'abnormal capillary shapes per mm' was significantly correlated with treatment-naivety. The number of 'large pathological hemorrhages per mm' was significantly correlated with SLEDAI score and presence of nephritis. Compared to healthy controls, 'pericapillary extravasations' were found in significantly higher numbers per mm (p < 0.001) as well as in percentage of patients (p < 0.001). CONCLUSIONS: Our observations confirm that giants, abnormal capillary morphology and capillary hemorrhages are also observed in cSLE, as was already known for adults with SLE. Number of capillary hemorrhages in cSLE was significantly correlated with disease activity. A high frequency and total amount of "pericapillary extravasations" was observed in cSLE patients, possibly revealing a new subtype of capillary hemorrhage that might reflect endothelial damage in these pediatric patients.

[A teenager with painless swelling of the PIP-joints]. / Een tiener met pijnloze zwellingen aan de vingers.

A 13-year-old boy was seen with symmetric bilateral swelling around the proximal interphalangeal joints. He did not have pain or loss of function or other signs of arthritis. Inflammation parameters and rheumatologic markers were negative. X-ray and MRI revealed soft tissue swelling. This confirmed the diagnosis pachydermodactyly, a rare benign form of fibromatosis.

Probiotics and prebiotics in atopic dermatitis: review of the theoretical background and clinical evidence.

The prevalence of atopic dermatitis (AD) has risen over the past decades, especially in western societies. According to the revised hygiene hypothesis this increase is caused by a changed intestinal colonization pattern during infancy, which has an impact on the immune system. Manipulating the intestinal microflora with pro-, pre- or synbiotics is an innovative way to prevent or treat AD. This review provides an overview of the theoretical basis for using probiotics and prebiotics in AD and presents the current evidence from randomized controlled trials (RCTs) regarding prevention and treatment of AD and food allergy in children with pro-, pre- and synbiotics. Seven RCTs on prevention and 12 RCTs on treatment were found by searching the Pubmed, Embase and Cochrane databases. Results of these trials are conflicting. In conclusion, at this moment there is not enough evidence to support the use of pro-, pre- or synbiotics for prevention or treatment of AD in children in clinical practice.