RT Journal Article SR Electronic T1 Respiratory problems in Schimke immuno-osseous dysplasia [SIOD] JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP PA1313 DO 10.1183/13993003.congress-2015.PA1313 VO 46 IS suppl 59 A1 Hanna Dmenska A1 Edyta Heropolitanska-Pliszka A1 Barbara Pietrucha A1 Barbara Piatosa A1 Wioletta Jarmuzek A1 Jacek Rubik YR 2015 UL http://erj.ersjournals.com/content/46/suppl_59/PA1313.abstract AB SIOD is an autosomal recessive disorder caused by mutations in SMARCAL 1 gene. It is characterized by spondyloepiphyseal dysplasia with disproportionate short stature, facial dysmorphism, nephrotic syndrome with focal glomerulosclerosis and progressive renal failure, recurrent lymphopenia, T-cell immunodeficiency and pigment naevi. The prevalence of SOID is estimated at 1 in 1-3 mln live births.Aim: To present clinical observations in pts with SIOD.Material: A retrospective review of 4 case reports of SIOD pts.Results: Molecular analysis confirmed different mutations in SMARCAL 1 gene in pts and their parents. Pts 2 and 4 were related. The pts were born with intrauterine growth restriction but no SIOD features were observed. They appeared with time. Because of terminal renal failure all pts underwent RT. Primary immunodeficiency was also observed.There were respiratory symptoms present. They ranged from staphylococcal (SA) pneumonia (pt 1) to mild upper respiratory tract infections (pt 4). Chest X-rays were normal. No of ptage*/ sexonset of NS [yrs]age of RT [yrs]age of SMARCAL 1 identification [yrs]weight/height* [kg/cm]respiratory disease110.10 / M3.97.710.719.5/107SA pneumonia, recurrent upper and lower respiratory tract infections210.8 / M1.69.3821.5/115pneumonia, bronchitis38.9 / F2.95.57.213.8/87congenital pneumonia, several respiratory infections, sinusitis45.9 / M1.45.04.414.2/91several mild upper respiratory tract infections* date: Dec 2014, NS-nephrotic syndrome, RT-renal transplantationThe pts characteristicConclusions: It may be possible that differences in frequency and severity of respiratory infections in SIOD pts are due to different mutations in SMARCAL 1 gene.