Objective:

To explore the relationship between ultrasound manifestations of fetal intestinal dilatation

correct diagnosis after birth and neonatal prognosis.

Methods:

A retrospective analysis was performed on 41 cases of fetal intestinal dilatation found by ultrasound and participated in multi department consultation from January 2015 to November 2019.

Results:

A total of 41 cases were followed up to one month after birth. ① There were 16 cases of duodenal dilatation (16/41

39.0%)

6 cases of p

regnancy termination

1 case of intrauterine fetal death within 30 weeks of pregnancy

and 9 cases of post-natal surgery. Postoperative pathology: 3 cases were of annular pancreas

3 cases were of duodenal membranous atresia

2 cases of duodenal stenosis and 1 case of duodenal malrotation. ② There were 13 cases of intestinal dilatation (13/41

31.7%)

7 cases (7/13

53.8%) of normal defecation after full-term delivery

3 cases of pregnancy termination

and 3 cases of surgery after birth. Postoperative pathology: there were 1 case of duodenal membranous atresia

1 case of duodenal stenosis

and 1 case of distal intestinal atresia combined with intestinal perforation. ③ There were 11 cases of colonic dilatation (11/41

26.8%)

7 cases (7/11

63.6%) of normal defecation after full-term delivery

1 case of pregnancy termination

1 case of neonatal death

and 2 cases of operation after birth. Postoperative pathology: colonic membranous atresia. ④ There was 1 case of dilatation of small intestine and colon (1/41

2.4%)

and defecation were normal after full-term delivery.

Conclusion:

The prognosis of fetus with duodenal dilatation or other abnormalities is worse than that of simple small intestine or colon dilatation. Partial small intestine or colon dilatation may be a transient manifestation of normal fetus.