no

Yes it can. It can also be fatal.

No, there is no way to know that a fetus has amniotic band syndrome until they are born. Once the baby is born, they will have a treatment plan tailored just for them since no 2 cases of this are ever the same.

Low amniotic syndrome usually an indication of downs syndrome.

Amniotic banding affects approximately 1 in 1,200 live births. It is also believed to be the cause of 178 in 10,000 miscarriages. Up to 50% of cases have congenital anomalies including cleft lip, cleft palate, and clubfoot deformity. Hand and finger anomalies occur in up to 80%. (More information at related link)