The aim of this study is to assess the developmental patterns of lung function in children affected by growth hormone deficiency after one year of GH therapy.The assessment by specific questionnaires of quality of life and of parental stress index.Parameters will be evaluated at the time of the diagnosis and after 12 months of GH therapy.

Observational longitudinal study in children affected by idiopathic growth hormone deficiency (GHD): lung function parameters assessment; quality of life assessment; stress parenting assessment (Pneumo GHD). The aim of this study is to assess the developmental patterns of lung function in children affected by growth hormone deficiency after one year of GH therapy.The assessment by specific questionnaires of quality of life and of parental stress index.Parameters will be evaluated at the time of the diagnosis and after 12 months of GH therapy.