KdVS is caused by a deletion of chromosome 17 or a mutation (pathogenic variant) in the KANSL1 gene. A “deletion” is the missing part of the hereditary material in a chromosome. When one parent has a disorder, the child also has a chance to inherit the disorder.
The prevalence of Koolen-de Vries syndrome is unknown. The study says that the prevalence of KdVS is 1 in 30,000 individuals.
The cost of medical care can be very expensive in the United States. Various programs (patient assistance/financial assistance/prescription assistance) are run by healthcare and pharmaceutical companies to help those in need and can be in the form of vouchers, coupons, discounts, co-pay assistance, or free medication. Depending on the program, you may receive a variety of benefits. And programs often have different requirements.
ASP Health helps patients find programs that can offer assistance by providing information about them.