Torbjörn Hillensjö
Karolinska Institutet
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Publication
Featured researches published by Torbjörn Hillensjö.
Journal of Assisted Reproduction and Genetics | 1998
Annica Bergendal; Sophie Naffah; Christina Nagy; Agneta Bergqvist; Peter Sjöblom; Torbjörn Hillensjö
Purpose:The aim of this retrospective study was to compare the outcome of in vitro fertilization and embryo transfer in women with endometriosis and a control group with tubal-factor infertility.Methods:Forty-eight patients with endometriosis underwent 65 cycles of in vitro fertilization and embryo transfer at Huddinge University Hospital. The matched control group with tubal-factor infertility consisted of 98 cycles in 98 patients. These groups were retrospectively analyzed regarding stimulation, fertilization, embryo development, implantation, and pregnancy outcome.Results:The fertilization rate was significantly lower in women with endometriosis, but the cleavage, implantation, and pregnancy rates did not differ.Conclusions:Our results show that women with endometriosis have a lower fertilization rate compared with women with tubal-factor infertility. However, once the oocyte is fertilized, it seems that the preembryo has a normal chance of implantation, leading to similar pregnancy rates.
Prenatal Diagnosis | 1998
José Inzunza; Erik Iwarsson; Margareta Fridström; Björn Rosenlund; Peter Sjöblom; Torbjörn Hillensjö; Elisabeth Blennow; B. Jones; Magnus Nordenskjöld; I. Ährlund-Richter
We have tested and subsequently successfully applied a single‐needle approach to obtain blastomere biopsies from human preimplantation embryos for preimplantation genetic diagnosis (PGD).
Acta Obstetricia et Gynecologica Scandinavica | 1995
Margareta Fridström; Leena Garoff; Peter Sjöblom; Torbjörn Hillensjö
Background. Assisted reproduction implies increased risks of pathological pregnancy, necessitating close follow up of early pregnancy. The use of serum hCG levels two and three weeks after embryo transfer for prediction of pregnancy outcome after in vitro fertilization‐embryo transfer (IVF/ET) or gamete intrafallopian transfer (GIFT) was evaluated.
Acta Obstetricia et Gynecologica Scandinavica | 1997
Björn Rosenlund; Peter Sjöblom; Anna Dimitrakopoulos; Torbjörn Hillensjö
Background. The possibility of treating male infertility because of obstructive azoospermia has been poor, but intracytoplasmic sperm injection (1CSI) has given this type of infertility sufferer a new option.
Journal of Assisted Reproduction and Genetics | 1994
The-Hung Bui; Maria Anvret; Niklas Dahl; Leena Garoff; Peter Sjöblom; Torbjörn Hillensjö
A twin pregnancy following in vitro ferilization-embryo transfer coincidentally at risk for the X-linked recessive Duchenne muscular dystrophy is described. Firsttrimester prenatal diagnosis by transabdominal chorionic villus samplings on the dichorionic placentae and molecular linkage analysis could exclude the disorder in both fetuses. Genetic counseling and prenatal diagnosis were particularly complex due to the twin pregnancy, the need for linkage analysis, and confined placental mosaicism 45,X/46XX in one of the fetuses. All parties should be aware that additional invasive diagnostic procedures in the second trimester might be required. It is proposed that, in similar situations, only one, arguably two, fertilized egg be transferred at a time to facilitate prenatal diagnosis and decision making for these rare couples. This problem, however, may be increasingly overcome by preimplantation diagnosis.
Human Reproduction | 1986
C. Magnusson; Torbjörn Hillensjö; Lars Hamberger; Lars Nilsson
Fertility and Sterility | 1994
Christina Bergh; Torbjörn Hillensjö; Matts Wikland; Lars Nilsson; Gunilla Borg; Lars Hamberger
Journal of Assisted Reproduction and Genetics | 1996
Björn Rosenlund; Peter Sjöblom; Torbjörn Hillensjö
Human Reproduction | 1998
Björn Rosenlund; Peter Sjöblom; Magnus Törnblom; Claes Hultling; Torbjörn Hillensjö
Molecular Human Reproduction | 1998
Erik Iwarsson; Lars Ährlund-Richter; José Inzunza; Björn Rosenlund; Margareta Fridström; Torbjörn Hillensjö; Peter Sjöblom; Magnus Nordenskjöld; Elisabeth Blennow