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Ahmet Alexander Baschat, M.D., M.B. B.CH. B.A.O.

Headshot of Ahmet Alexander Baschat
  • Director, Center for Fetal Therapy
  • Professor of Gynecology and Obstetrics

Languages: English, German, Turkish


Amniotic Band Syndrome (ABS), Congenital Diaphragmatic Hernia, EXIT Procedure, Fetal Cardiac Defects, Fetal Echocardiography, Fetal Hydrops, Fetal Hydrothorax, Fetal Surgery, Fetal Therapy, Fetal Tracheal Balloon Occlusion, Fetoscopy, Gynecology and Obstetrics, Intrauterine Growth Restriction, Lower Urinary Tract Obstruction (LUTO), Maternal and Fetal Medicine, Multiple Gestations, Obstetrics, Placental Dysfunction, Prenatal Ultrasound, Spina Bifida, Twin Anemia Polycythemia Sequence, Twin Reversed Arterial Perfusion, Twin-to-Twin Transfusion Syndrome more

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The Johns Hopkins Hospital

Appointment Phone: 410-502-6561
600 N. Wolfe Street
Nelson Building
Baltimore, MD 21287 map


Dr. Ahmet Baschat is director of the Center for Fetal Therapy and professor in the Johns Hopkins Medicine Department of Gynecology and Obstetrics. His areas of clinical expertise include prenatal diagnosis and therapy of a wide range of fetal conditions including congenital diaphragmatic hernia, intrauterine growth restriction, twin-to-twin transfusion syndrome (TTTS), as well as other complications of monochorionic twin pregnancies. 

Dr. Baschat received his undergraduate and medical degrees from The Royal College of Surgeons in Ireland. He earned his doctorate in medicine (Dr. Med) from the University of Lübeck, where he also completed a residency in obstetrics and gynecology. Dr. Baschat also completed residencies at Newton-Wellesley Hospital and at University of Maryland Medical Center. He performed a fellowship in maternal-fetal medicine at University of Maryland Medical Center and went on to develop its Center for Advanced Fetal Care. Dr. Baschat joined the Johns Hopkins faculty in 2014.

Prior to joining Johns Hopkins, Dr. Baschat was professor and director of Maternal-Fetal Medicine and the Section of Fetal Therapy at the University of Maryland School of Medicine.

Dr. Baschat’s research interests include interventions and management techniques for fetal growth restriction and placental insufficiency. He has also done extensive research on the use of high resolution prenatal ultrasound techniques, including Doppler and fetal echocardiography, to predict and detect fetal complications.

Dr. Baschat serves on a variety of boards and is a member of the American Congress of Obstetricians and Gynecologists (ACOG), the International Society of Ultrasound in Obstetrics & Gynecology and the International Fetal Medicine and Surgery Society. He has been recognized with several awards and honors, including the 2010 Award for Excellence in Research by the Society for Maternal-Fetal Medicine. Dr. Baschat’s passion for developing an individualized care plan for each of his patients has been the hallmark of his practice. more


  • Director, Center for Fetal Therapy
  • Professor of Gynecology and Obstetrics
  • Joint Appointment in Surgery

Departments / Divisions

Centers & Institutes



  • MB BCh BAO; Royal College of Surgeons in Ireland (1989)


  • Internal Medicine; Newton-Wellesley Hospital (1994)
  • Obstetrics and Gynecology; University of Luebeck Germany (1997)
  • Obstetrics and Gynecology; University of Maryland Medical Center (2001)


  • Maternal & Fetal Medicine; University of Maryland Medical Center (2004)

Research & Publications

Selected Publications

View all on PubMed

Baschat AA, Barber J, Pedersen N, Turan OM, Harman CR. Outcome after fetoscopic selective laser ablation of placental anastomoses versus equatorial laser dichorionization for the treatment of twin-to-twin transfusion syndrome. Am J Obstet Gynecol. 2013; 209: 234.e1-8.

WAPM Consensus Group on Twin-to-Twin Transfusion, Baschat A, Chmait RH, Deprest J, Gratacós E, Hecher K, Kontopoulos E, Quintero R, Skupski DW, Valsky DV, Ville Y. Twin-to-twin transfusion syndrome (TTTS). J Perinat Med. 2011; 39: 107-12

Baschat AA, Oepkes D. Twin anemia-polycythemia sequence in monochorionic twins: implications for diagnosis and treatment. Am J Perinatol. 2014 Sep;31 Suppl 1:S25-30. doi: 10.1055/s-0034-1376391. Epub 2014 May 23.

Benoit RM, Baschat AA. Twin-to-twin transfusion syndrome: prenatal diagnosis and treatment. Am J Perinatol. 2014 Aug;31(7):583-94. doi: 10.1055/s-0034-1372428. Epub 2014 May 23.

Baschat AA. Neurodevelopment following fetal growth restriction and its relationship with antepartum parameters of placental dysfunction. Ultrasound Obstet Gynecol. 2011; 37: 501-14.

Eixarch E, Valsky D, Deprest J, Baschat AA, Lewi L, Ortiz JU, Martinez-Crespo JM, Gratacos E.Preoperative prediction of the individualized risk of early fetal death after laser therapy in twin-to-twin transfusion syndrome. Prenat Diagn. 2013; 33: 1033-8.

Papanna R, Block-Abraham D, Mann LK, Buhimschi IA, Bebbington M, Garcia E, Kahlek N, Harman C, Johnson A, Baschat A, Moise KJ Jr. Risk factors associated with preterm delivery after fetoscopic laser ablation for twin-twin transfusion syndrome. Ultrasound Obstet Gynecol. 2014; 43: 48-53.

Block-Abraham DM, Turan OM, Doyle LE, Kopelman JN, Atlas RO, Jenkins CB, Harman CR, Blitzer MG, Baschat AA. First trimester maternal characteristics, Doppler parameters and serum analytes after preeclampsia. Hypertens Pregnancy. 2013 [Epub ahead of print]

Activities & Honors


  • Research Award, 7th World Congress of Ultrasound in Obstetrics and Gynecology, 1997
  • Research Award, International Society of Ultrasound in Obstetrics & Gynecologic, 2004
  • M. Carlyle Crenshaw, M.D. Lectureship in Maternal and Fetal Medicine, 2013
  • Resident Research Award, Maryland Obstetrical & Gynecologic Society, 2001
  • Resident Research Award, Maryland Obstetrical & Gynecologic Society, 2000
  • Award for Excellence in Research, Society for Maternal-Fetal Medicine, 2010
  • Dru Carlson Memorial award for Research in Ultrasound and Genetics, Society for Maternal-Fetal Medicine, 2008
  • Award for Excellence in Research, Society for Maternal-Fetal Medicine, 2008

Videos & Media

  • Play Video:

    Twin-to-Twin Transfusion Syndrome Q&A

  • Play Video:

    Innovation, Education, Collaboration

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