Thoracoamniotic shunting with double-basket catheters for fetal chylothorax in the second trimester

The progress of a fetal severe pleural effusion at mid-trimester is extremely poor. We encountered a fetus that developed a severe left pleural effusion at 21 weeks of gestation. The pleural effusion was removed by thoracocentesis at 22 weeks. Cytology revealed abundant lymphocytes, suggesting chylothorax. However, a reaccumulation of pleural effusion with hydrops was subsequently noted, and a thoracoamniotic shunt with double-basket catheters was installed at 23 weeks. The pleural effusion decreased after 24 weeks and completely disappeared at 26 weeks. At 40 weeks of gestation, a female infant was born by vaginal delivery, with no evidence of pleural effusion. We would like to stress that thoracoamniotic shunt with double-basket catheters in the second trimester is effective for pleural effusion with hydrops.