Annabelle's Challenge is the leading charity for vascular Ehlers-Danlos syndrome in the UK. At the heart of the charity is Annabelle, a brave little girl from Bury who is the inspiration behind our challenge to raise awareness and support for patients and families affected by vascular EDS. Vascular EDS is a life threatening connective tissue disorder that affects all tissues, arteries and internal organs making them extremely fragile. Patients are at risk of sudden arterial or organ rupture. Vascular EDS (previously known as EDS Type 4.