I was examining my search items for this site as of recent and found quite a few for heterotaxy. So this is a Dear Kendra of sorts…
What is heterotaxy?  
First, heterotaxy has a prevalence of less then 0.1% but is thought to account for1% of infant mortality.  Heterotaxy is also called asplenia. Asplenia is a heterogeneous disease that primarily affects the asymmetric organs, including the heart, liver, intestines, and spleen. Heterogeneous meaning genetic.  Primarily, this disease includes cyanotic congenital heart disease, asplenia, and intestinal malrotation. Asplenia is thought to have some familial predisposition. Embryologically, it results from failure of development …read more