Dr. Juan Luis Martinez-Poyer is an attending physician at the Center for Fetal Diagnosis and Treatment at The Children’s Hospital of Philadelphia and a Clinical Assistant Professor of obstetrics and gynecology at the Perelman School of Medicine, University of Pennsylvania.

His areas of interest within maternal-fetal medicine include, prenatal diagnosis, fetal therapy, multiple gestations and fetal cardiovascular hemodynamics.

“This is the most prestigious center for fetal therapy in the world,” he says. “I have known the people who lead this center for many years and have always wanted to work with them. They are pioneers in the field and have contributed a great deal to this specialty. It’s very exciting to be a part of the team.”

Prior to joining the Center team in 2012, Dr. Martinez-Poyer served as a maternal-fetal medicine specialist at Northwest Perinatal Center, a provider of comprehensive medical services for high-risk pregnancies in Portland, Ore. He also served as a visiting physician at the Harris Birthright Research Center for Fetal Medicine in London’s King’s College Hospital, and chief of obstetrics and gynecology at Three Rivers Health, Three Rivers, Michigan.

Dr. Martinez-Poyer was born and raised in Venezuela. He earned his medical degree from the Luis Razetti, M.D., School of Medicine at the Central University of Venezuela. He completed his residency in obstetrics and gynecology and a fellowship in maternal-fetal medicine at Wayne State University School of Medicine, Detroit, Mich. He is board certified in obstetrics and gynecology and maternal-fetal medicine.

He has been involved in research in the areas of obstetric ultrasound and fetal left cardiac function. He has published articles in the Journal of Ultrasound in Medicine, Radiology, the American Journal of Obstetrics & Gynecology, and the New England Journal of Medicine. He is currently participating in a new research study at CHOP aimed at improving the outcome prediction of fetuses with diaphragmatic hernia.

1. Martinez-Poyer J.  Relación entre la longitude del femur y la edad gestacional en la población venezolana.  Revista de la Sociedad Venezolana de Obstetricia y Ginecología 3:45, 1986.
2. Hadlock FP, Harrist RB, Martinez-Poyer J.  In utero analysis of fetal growth: A sonographic weight standard.  Radiology 181(1):129-133, Oct. 1991.
3. Hadlock FP, Harrist RB, Martinez-Poyer J.  How accurate is second trimester fetal dating?  Journal of Ultrasound in Medicine 10(10):557-561, Oct. 1991.
4. Hadlock FP, Harrist RB, Martinez-Poyer J.  Fetal body ratios in second trimester: A useful tool for identifying chromosomal abnormalities?  Journal of Ultrasound in Medicine 11(2):81-85, Feb. 1992.
5. Hallak M, Martinez-Poyer J, Kruger ML, Hassan S, Blackwell SC, Sorokin Y.  The effect of magnesium sulfate on fetal heart rate parameters: A randomized, placebo-controlled trial.  American Journal of Obstetrics & Gynecology 181(5 Pt 1):1122-1127, Nov. 1999.
6. Mari G, Deter RL, Carpenter RL, Rahman F, Zimmerman R, Moise KJ Jr, Dorman KF, Ludomirsky A, Gonzalez R, Gomez R, Oz U, Detti L, Copel JA, Bahado-Singh R, Berry S, Martinez-Poyer J, Blackwell SC.   Noninvasive diagnosis by Doppler ultrasonography of fetal anemia due to maternal red-cell alloimmunization. Collaborative Group for Doppler Assessment of the Blood Velocity in Anemic Fetuses.  New England Journal of Medicine 342(1):9-14, Jan. 6, 2000.
7. Martinez-Poyer J, Hallak M, Russell E, Poole-Bryant K, Sorokin Y.  Magnesium sulfate prolongs ventricular repolarization in normal gravidas: A randomized, double-blind, placebo-controlled study.  American Journal of Obstetrics & Gynecology 2012 (in press).