Prof. Dr. med. Karsten R. Held, attended medical studies at the University of Freiburg, finishing his doctoral thesis in pharmacogenetics in 1968. He performed is residency at Zentralkrankenhaus, Links d. Weser, Bremen, from 1968 to 1970. From there he did postdoctoral studies in human genetics from 1970 to 1973 both at the Institute of Human Genetics, University of Hamburg and the Laboratory of Genetics, University of Wisconsin, Madison, USA.
He trained in Pediatrics at the Department of Pediatrics, University of Hamburg thereafter, and in 1979 received his Habilitation and Qualification as Academic Lecturer, and his Board Certification as Pediatrician, followed in 1981 by his Board Certification as Genetic Counselor. In 1996 he further increased his credentials by receiving the Board certification as Human Geneticist.
During 1976 to 1996 he was the Head of the Division of Cytogenetics and Clinical Genetics, Institute of Human Genetics, University of Hamburg, and also from 1994 to 1996 the Head of the Department of Human Genetics, University of Hamburg. From there he went to become the Head of the Division Human Genetics, Laboratory Keeser/Arndt & Partner until 2002, when he became the Medical Director of the Laboratory for Molecular Medicine until 2006. Simultaneously, Prof. Held has been since 1996 to date, a Consultant to the Department of Prenatal Medicine of Gynecology and Obstetrics, AK Barmbek.
His involvement in PGD is extensive, since his lab has processed an average of 600 cases a year in the last few years, all of polar body analysis due to the German law on infertility treatment. Due to this experience, Prof. Held became a founder partner and CEO in 2007 of Reprogenetics Germany LLC.