@article {10545, title = {Higher growth, fat and fat-free masses correlate with larger cerebellar volumes in preterm infants at term.}, journal = {Acta Paediatr}, volume = {106}, year = {2017}, month = {2017 Jun}, pages = {918-925}, abstract = {

AIM: Smaller cerebellar volumes in very low-birthweight (VLBW) infants at term have been related to adverse cognitive outcomes, and this study evaluated whether these volumes were associated with a growth in body composition during hospital stays.

METHODS: We prospectively recruited 42 VLBW infants from an Italian neonatal unit between January 2013 and August 2015. Cerebellar volumes and body composition were measured by magnetic resonance imaging (MRI) and air-displacement plethysmography, respectively, at 40 weeks of gestational age and anthropometric and nutritional data were collected. We also included 20 term-born controls.

RESULTS: The mean gestational age and birthweight of the VLBW infants were 29.4 ({\textpm}1.9) weeks and 1120 ({\textpm}290) g. There was a positive correlation between cerebellar volumes and daily weight gain from birth to term (R = 0.26, p = 0.001), weight (R = 0.25, p = 0.001), length (R = 0.16, p = 0.01), fat mass (R = 0.15, p = 0.01) and fat-free mass at term (R = 0.20, p = 0.003). In multiple regression analysis, daily weight gain, mechanical ventilation and postconceptional age at MRI were independently associated with cerebellar volumes. Anthropometric data and cerebellar volumes were similar between VLBW and control infants.

CONCLUSION: Higher growth, higher fat mass and fat-free mass were associated with larger cerebellar volumes in VLBW infants at term.

}, keywords = {Body Composition, Cerebellum, Child Development, Female, Humans, Infant, Newborn, Infant, Premature, Infant, Very Low Birth Weight, Male, Nutritional Status, Organ Size, Prospective Studies, Regression Analysis}, issn = {1651-2227}, doi = {10.1111/apa.13829}, author = {Paviotti, Giulia and De Cunto, Angela and Zennaro, Floriana and Boz, Giulia and Travan, Laura and Cont, Gabriele and Bua, Jenny and Demarini, Sergio} } @article {8510, title = {Hepatic Gadolinium Deposition and Reversibility after Contrast Agent-enhanced MR Imaging of Pediatric Hematopoietic Stem Cell Transplant Recipients.}, journal = {Radiology}, year = {2016}, month = {2016 Jun 8}, pages = {152846}, abstract = {

Purpose To determine if hepatic gadolinium deposition occurs in pediatric patients with iron overload but normal renal and hepatic function who undergo gadolinium-based contrast agent (GBCA)-enhanced magnetic resonance (MR) imaging. Materials and Methods Design and execution of this study was approved by the Ethical Committee of Institute for Research in Maternal and Child Health Burlo Garofolo of Trieste (reference no. 1105/2015). Because of the retrospective nature of the study, the requirement to obtain informed consent was waived. Twenty-one recipients of allogeneic hematopoietic stem cell transplants who underwent GBCA-enhanced MR imaging for suspected infection or relapse followed by liver biopsy comprised the study group. The number of GBCA-enhanced MR examinations and cumulative gadolinium dose for each patient was analyzed by comparing liver histologic analysis and iron and gadolinium liver concentration (GLC). Eight patients had siderosis and underwent chelation therapy. The study group was compared with four control patients who were never exposed to GBCA. Statistical analysis was performed with Spearman rank coefficient for correlation. Results All 21 patients had positive correlations between GLC and total GBCA dose (r = 0.4486; P < .05) and between GLC and liver iron concentration (r = 0.56; P < .05). Patients who underwent deferoxamine therapy had a significant reduction of GLC (from 0.64 μg/g {\textpm} 0.29 to 0.20 μg/g {\textpm} 0.17 [standard deviation]; P < .05). Conclusion In the presence of siderosis, a transmetallation mechanism may be set off between ferric ion and gadoterate meglumine. Deferoxamine appears capable of binding to gadolinium ion. Further studies of the safety of GBCAs in severe siderosis are needed. Chelation should be considered in patients with iron overload and a history of GBCA exposure. ({\textcopyright}) RSNA, 2016.

}, issn = {1527-1315}, doi = {10.1148/radiol.2016152846}, author = {Maximova, Natalia and Gregori, Massimo and Zennaro, Floriana and Sonzogni, Aurelio and Simeone, Roberto and Zanon, Davide} } @article {3558, title = {Hematopoietic stem cell transplantation effects on spinal cord compression in Hurler.}, journal = {Pediatr Transplant}, volume = {18}, year = {2014}, month = {2014 May}, pages = {E96-9}, abstract = {

Hurler syndrome type 1 (MPS-1) is an autosomal recessive lysosomal disorder due to the deficiency of the enzyme alpha-L-iduronidase which is necessary for the degradation of dermatan and heparan sulfate. It is characterized by deposit of glycosaminoglycans in tissues, progressive multisystem dysfunction, and early death. HSCT for children with MPS-I is effective, resulting in increased life expectancy and improvement of clinical parameters. The spinal MRI performed on a female 10 yr old undergoing HSCT at the age of 18 months and receiving ERT revealed a considerable decrease in soft tissue around the tip of odontoid causing a significant reduction in spinal cord compression. In light of this result, we suppose that combined ERT and HSCT are successful in Hurler I disease.

}, keywords = {Bone Marrow Transplantation, Child, Enzyme Replacement Therapy, Female, Glycosaminoglycans, Hematopoietic Stem Cell Transplantation, Humans, Iduronidase, Magnetic Resonance Imaging, Mucopolysaccharidosis I, Odontoid Process, Spinal Cord Compression, Treatment Outcome}, issn = {1399-3046}, doi = {10.1111/petr.12231}, author = {Ferrara, Giovanna and Maximova, Natalia and Zennaro, Floriana and Gregori, Massimo and Tamaro, Paolo} }