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Dr Tom Prior graduated with distinction from Imperial College London Medical School in 2006. His postgraduate training in obstetrics and gynaecology took place at a number of London hospitals, including St Mary's and Queen Charlotte's & Chelsea hospitals. In 2015 Dr Prior was awarded a PhD from Imperial College London, recognising his research on the prediction of fetal compromise in labour. Dr Prior published this work and other research in a number of respected medical journals, and has also spoken about fetal compromise in labour to international audiences. Dr Prior is subspecialty accredited in maternal and fetal medicine, with experience in fetal ultrasound and of managing complex pregnancies.

Research & publications

Research interests

High risk obstetrics, including maternal and fetal medicine, fetal imaging and prenatal diagnosis, fetal growth restriction, diabetes in pregnancy.


Prior T, Mullins E, Bennett P, Kumar S (2013) Prediction of intrapartum fetal compromise using the cerebroumbilical ratio: a prospective observational study. Am J Obstet Gynecol. Feb;208(2):124.e1-6.

Prior T, Wild M, Mullins E, Bennett P, Kumar S (2013) Sex specific differences in fetal middle cerebral artery and umbilical venous Doppler. PLoS One.8(2):e56933.

Prior T, Mullins E, Bennett P, Kumar S (2014) Umbilical venous flow rate in term fetuses: can variations in flow predict intrapartum compromise? Am J Obstet Gynecol. Jan;210(1):61.e1-8.

Prior T, Mullins E, Bennett P, Kumar S (2014) The influence of parity on fetal haemodynamics and amniotic fluid volume at term. Ultrasound Obstet Gynecol. Feb 15.

Prior T, Mullins E, Bennett P, Kumar S (2014) Are 1st-trimester ß-human chorionic gonadotrophin and pregnancy-associated plasma protein A levels predictive of intrapartum fetal compromise in a selected normal population? Aust N Z J Obstet Gynaecol. Oct;54(5):418-23.

Prior T, Mullins E, Bennett P, Kumar S (2014) Prediction of fetal compromise in labor. Obstet Gynecol. Jun;123(6):1263-71.

Prior T, Kumar S (2014) Mode of delivery has an independent impact on neonatal condition at birth. Eur J Obstet Gynecol Reprod Biol. Oct;181:135-9.

Prior T, Paramasivam G, Bennett P, Kumar S (2015) Are babies that fail to reach their genetic growth potential at increased risk of intra-partum fetal compromise? Ultrasound Obstet Gynecol. Oct;46(4):460-4

Prior T, Kumar S (2015) Expert review - Identification of intra-partum fetal compromise. Eur J Obstet Gynecol Reprod Biol. Jul;190:1-6.

Prior T, Kumar S (2017) The impact of maternal hyper-oxygenation on foeto-placental blood flow. J Matern Fetal Neonatal Med. Jul;30(13):1563-1568 

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