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An unusual case of Caffey-Silverman's disease with thrombocythemia and increased type M immunoglobulins and C-reactive protein levels is reported. These particularities were rarely reported in the literature. These conditions suggest that control should be exercised before steroid treatment in view of the known thrombocythemic effect of the drug. These hematologic abnormalities suggest that this syndrome is infectious in origin and emphasize the risk of steroid treatment.

The authors report a case of infantile sialidosis with hydrops fetalis and heart failure. At birth the baby presented a dysmorphic syndrome with histological anomalies. A storage disease with deficiency of neuraminidase activity, sialidosis type II, was confirmed. Amniocentesis with sialic-acid dosage or thin-layed chromatography seems necessary in hydrops fetalis with heart failure of unknown origin.

A case of idiopathic aortic thrombosis in a term neonate is reported. Ultrasound examination led to diagnosis and an embolectomy was carried out. Literature data concerning etiology and treatment of neonatal aortic thrombosis are reviewed.

The authors report a controlled study of the use of 2 types of amino-acid solutions for premature infants nutrition in the first days of life, one of the solution (solution I) being adapted for prematures. The average amino-acid blood levels in prematures receiving solution I were close to those observed in cord blood; Plasma taurine, alanine and arginine concentrations were significantly lower with normalized levels of aromatic amino-acids, lysine, taurine and proline; serum ammonia level was also lower. This study shows that using an amino-acid solution adapted to prematures as a supplement to parenteral nutrition during the first days of life allows to progressively increase the nitrogen intakes without inducing dangerous plasma levels of some amino-acids.