Lifting the Impacted Fetal Head; the Fetal Pillow and Tydeman Tube Trial

Starting soon · Not applicable

Conditions studied: Impacted Fetal Head, Full Dilatation Caesarean Section

In brief

A single centre prospective observational comparison trial to compare the Tydeman Tube and Fetal Pillow, to aid delivery of the impacted fetal head at full dilatation caesarean section, and to evaluate the use of the Tydeman Tube at 7-9cm.

Key facts

Study ID

NCT07372768

Run by

Guy's and St Thomas' NHS Foundation Trust

People needed

80

Starts

2026-01-01

Expected to finish

2027-04-01

Last updated by the study team

2026-01-28

Who can join

Age: 16 and older. Sex: female. Healthy volunteers: not accepted.

You may qualify if…

• Undergoing caesarean section at full dilataion for fetal pillow arm, or caesarean section at 7 or more centimetres dilated for the tydeman tube arm
• Singleton pregnancy
• Cephalic presentation

You may not qualify if…

• Allergy to silicone rubber
• Major congenital abnormalities
• Major anomaly of the fetal head (i.e. large encephalocele)
• Intrauterine death
• Suspected chorioamnionitis
• Active genital infection inc. Herpes Simplex Virus
• Cervical dilatation <10cm for fetal pillow arm and <7cm for tydeman tube arm
• Gestational age <37 weeks
• non-cephalic presentation

Full record on ClinicalTrials.gov

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