Fetoscopic Endoluminal Tracheal Occlusion in Severe Left Congenital Diaphragmatic Hernia (CHOP_FETO)

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    Children's Hospital of Philadelphia
Updated on 22 January 2022
diaphragmatic hernia
pulmonary hypoplasia


CDH is a birth defect characterized by the development, very early in gestation, of a hole in the diaphragm, the breathing muscle that separates the chest from the abdomen. As a result, the intestines and other organs in the abdomen can move into the chest and press on the developing lungs. This prevents the lungs from growing and developing normally.

In severe cases, CDH can lead to serious disease and death at birth. For these babies, treatment before birth may allow the lungs to grow enough before birth so these children are capable of surviving and thriving.


Study Summary

All patients will complete a standard prenatal evaluation at the Center for Fetal Diagnosis and Treatment (CFDT) to find out if they are candidates. The standard clinical assessments include: Medical history and Physical exam, Level II ultrasound, Fetal echocardiogram, Fetal magnetic resonance imaging (MRI), and a Psychosocial assessment.

If determined eligible, patients will be extensively counseled by the CFDT Team and those who choose to participate will provide written, informed consent for study enrollment.

Up to 15 women will be enrolled in the FETO study. The mother and her unborn baby will undergo two procedures. A balloon will be placed in the unborn baby's airway between 27+0/7 - 29+6/7 gestational age. The balloon blocks the airway and remains in place until balloon removal. The timing for balloon removal will be determined by the CFDT Management Team and can occur between 34 +0/7 - 34+6/7 gestational age.

Mothers enrolled in this study must remain near the fetal center, under close supervision, from the time of balloon placement through delivery in the Garbose Family Special Delivery Unit.

Weekly prenatal monitoring will occur after the first procedure at the CFDT and planned delivery will occur in the Garbose Family Special Delivery Unit at term.

Postnatal stabilization and subsequent surgery to repair the diaphragm will take place at CHOP.

Infants will be followed at CHOP at 6 months, 12 months, and 2 years of age and then long-term in the Pulmonary Hypoplasia Program study at The Children's Hospital of Philadelphia.

Condition Congenital Diaphragmatic Hernia, Pulmonary Hypoplasia
Treatment GoldBAL2 Detachable Balloon and BALTACCIBDPE100 Delivery Catheter
Clinical Study IdentifierNCT02549820
SponsorChildren's Hospital of Philadelphia
Last Modified on22 January 2022


Yes No Not Sure

Inclusion Criteria

Pregnant women age 18 years and older, who are able to consent
Singleton pregnancy
Normal Karyotype
Diagnosis of Isolated Left CDH with liver up
Gestation at enrollment prior to 29 weeks plus 5 days
SEVERE pulmonary hypoplasia with Ultrasound Observed/Expected Lung-to-Head Ratio (O/E LHR) < 25%

Exclusion Criteria

Pregnant women < 18 years
Maternal contraindication to fetoscopic surgery or severe maternal medical condition in pregnancy
Technical limitations precluding fetoscopic surgery
Rubber latex allergy
Preterm labor, cervix shortened (<15 mm at enrollment or within 24 hours of FETO balloon insertion procedure) or uterine anomaly strongly predisposing to preterm labor, placenta previa
Psychosocial ineligibility, precluding consent
Fetal Diaphragmatic hernia: right-sided or bilateral, major associated anomalies, isolated left-sided with the O/E LHR 25%
Inability to remain at FETO site during time period of tracheal occlusion, delivery and postnatal care
Declining concurrent enrollment in Pulmonary Hypoplasia Program study for long term follow up
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Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

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If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

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Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

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