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Background: Fractures of the clavicle are the most common birth injury among newborns. Aim of this systematic review was to provide a comprehensive analysis of the role of ultrasound (US) in diagnosing clavicular fractures in neonates. Methods: A systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) using PubMed and Embase, including studies focusing on US in neonatal clavicle fracture. Age at US, number of cases examined by US and X-ray, US and X-ray diagnoses, US probe used, fracture site were systematically extracted. Results: A total of 231 articles were found. We ultimately selected 7 publications that satisfied the inclusion criteria, involving 136 patients examined between 3 days and 3 weeks of age, with 135 confirmed fractures. US was performed on all patients and correctly diagnosed all fractures (135/135, 100%). X-ray was performed on 94/136 patients (69.1%) and correctly diagnosed 89/93 fractures (95.7%). Fracture site was: medial in 2/79, middle in 37/79, and lateral in 40/79. In the remaining 57 cases, site was not reported. Conclusions: This review indicates that ultrasound is extremely reliable in diagnosing clavicle fractures in newborns and should be considered as the gold standard in this context.

Human cytomegalovirus (HCMV) is the leading infectious agent causing congenital disabilities. The risk of HCMV transmission to the fetus in pregnant women receiving immunosuppressive agents is unknown. We describe two cases of pregnant women with evidence of pre-conception HCMV protective immunity receiving azathioprine for ulcerative colitis or systemic lupus erythematosus. Both women reactivated the HCMV and transmitted the infection to the fetuses. One newborn showed unilateral hearing deficits and brain abnormalities while the other was asymptomatic. The mother of the symptomatic newborn had low levels of total and HCMV-specific blood CD4+ T cells. Women receiving immunosuppressive agents deserve information about the risk of HCMV congenital infection and should be monitored for HCMV infection during pregnancy. Their newborns should be screened for HCMV congenital infection.