Polyhydramnios (or high amniotic fluid levels) is also a possible occurrence in gastroschisis pregnancies. This can happen due to fetal intestinal dysfunction and nutrient malabsorption resulting in excess amino acids in the amniotic fluid10. While there can be additional causes for polyhydramnios, it often does not cause significant issues but can be an indicator for medications or fluid removal, as well as a factor in pre-term labour.11 This can be an indication of additional complications such as intestinal atresia, which will require further surgical intervention after birth.12
10. http://www.scielo.br/pdf/bjmbr/v39n8/6292.pdf
11. http://www.nlm.nih.gov/medlineplus/ency/article/003267.htm