Uterine Arteriovenous Malformation

Spec
I sadly miscarried last Friday, but an ultrasound showed that it was 'incomplete'. My doctor is worried because the scan showed the blood flow to the tisse was still very high. 
I'm having a hysteroscopy tomorrow to confirm, but they think it's a uterine aterovenous malformation. 
Has anyone been diagnosed with this before? Please tell me you went on to have a healthy pregnancy.