Awareness and Knowledge of Medical Interns in the Diagnosis and Management of Anaphylaxis in Medina Region, Saudi Arabia.

Background Anaphylaxis is a severe hypersensitivity reaction caused by IgE-mediated mechanisms. This life-threatening condition affects multiple body systems. Global lifetime prevalence estimates for anaphylaxis range from 0.

The spectrum of congenital heart diseases in down syndrome. A retrospective study from Northwest Saudi Arabia.

Objectives: To to define the frequency and patterns of congenital heart disease (CHD) among children with Down syndrome (DS) in Northwest Saudi Arabia. 

Methods: We included children with confirmed DS referred to the regional pediatric cardiology unit in Madinah Maternity and Children Hospital between January 2008 and December 2013. Children were identified from the unit's data-base and the charts were reviewed retrospectively.