Dr. Thanos Paraschos is an internationally acclaimed obstetrician and gynaecologist, specialized in infertility and IVF. He was privileged to perform the first preimplantation genetic diagnosis in the world (1989), alongside with Lord Professor Robert Winston and A.H. Handyside at Hammersmith Hospital.

He is the medical director of "EmBIO" IVF unit in Athens, Greece, which he founded in 1996.

Working in Robert Winston’s team, Thanos Paraschos invented the Rigid Wallace Catheter, used ever since by thousands of scientists worldwide for particularly demanding embryo transfers.

His thorough involvement in medical research on fertility and assisted reproduction technologies comprises important medical publications, published in peer review medical journals.

Professional Experience

Present Appointment

Director of EmBIO IVF Unit (EmBIO Medical Center, Athens, Greece)

Consultant Obstetrician and Gynaecologist at IASO Hospital

Previous Appointments

Contributing to the development of in vitro fertilisation and prenatal genetic diagnosis, Dr Paraschos has been participating in pioneering research studies, such as the following:

Fertility Regulation and Infertility Studies Published in Peer Review Journals

Pregnancies resulting from embryos biopsied for preimplantation diagnosis of genetic disease: biochemical and ultrasonic studies in the first trimester of pregnancy

J Assist Reprod Genet. 1996 Mar;13(3):254-8.
Soussis I, Harper JC, Kontogianni E, Paraschos T, Packham D, Handyside AH, Winston RM
Institute of Obstetrics & Gynaecology, Royal Postgraduate Medical School, Hammersmith Hospital, London, UK
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Clinical experience with preimplantation genetic diagnosis of cystic fibrosis (delta F508)

1: Prenat Diagn. 1996 Feb;16(2):137-42.
Ao A, Ray P, Harper J, Lesko J, Paraschos T, Atkinson G, Soussis I, Taylor D, Handyside A, Hughes M, Winston RM
Institute of Obstetrics and Gynaecology, RPMS, Hammersmith Hospital, London, UK.
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Results of IVF in patients with endometriosis...

Geber S, Paraschos T, Atkinson G, Margara R, Winston RM
Hammersmith Hospital, Institute of Obstetrics and Gynaecology, Royal Postgraduate Medical School, London, UK
Study with 140 patients with endometriosis... underwent 182 cycles of IVF ... fertilization rate was significantly lower.
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The zona reaction in human oocytes as seen with scanning electron microscopy

1: Hum Reprod. 1994 Nov;9(11):2135-8.
Nikas G, Paraschos T, Psychoyos A, Handyside AH
Laboratoire de Physiologie de la Reproduction, Hôpital Bicêtre, Bâtiment Gregory Pincus, INSERM, Le Kremlin-Bicêtre, France
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Normal development and metabolic activity of preimplantation embryos in vitro from patients with polycystic ovaries

1: Hum Reprod. 1995 Aug;10(8):2125-35.
Hardy K, Robinson FM, Paraschos T, Wicks R, Franks S, Winston RM
Human Embryology Laboratory, Royal Postgraduate Medical School, Hammersmith Hospital, London, UK
Polycystic ovary syndrome (PCOS) is closely associated with high miscarriage rates and decreased fertilization rates... This study demonstrates that with an optimized ovulation induction regimen, embryos from PCOS patients are of good quality and developmental potential.
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Endovaginal ultrasonography in the diagnosis of adenomyosis uteri: identifying the predictive characteristics

1: Br J Obstet Gynaecol. 1995 Jun;102(6):471-4. Links
Brosens JJ, de Souza NM, Barker FG, Paraschos T, Winston RM
Department of Obstetrics and Gynaecology, Hammersmith Hospital, London, UK
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