Around three per cent of all children born in Sweden are test-tube babies resulting from IVF (in vitro fertilisation).
"There are considerable discrepancies between the number of cycles offered by the various regional councils," says physician Catharina Olivius, author of the thesis. "Some councils, primarily in northern Sweden , offer just one free attempt, but this study shows that a couple's chances of having a baby increase considerably over three cycles."
The study followed almost a thousand women during their IVF treatment at Sahlgrenska University Hospital . The probability of having a baby was 35 per cent after one treatment, 52 per cent after two treatments and 63 per cent after three treatments. It was slightly higher for women under the age of 35.
Half of the couples who did not have a baby dropped out of IVF before three attempts. The most common reasons were that the treatment was felt to be too psychologically stressful, and that the chances of having a baby were considered to be very slim.
"My conclusion is that we need to get better at looking after patients' mental welfare during treatment," says Olivius. "A greater sense of wellbeing among patients would not only benefit them psychologically, but could also mean that fewer abandon treatment, which in turn could result in more couples having babies."
The risk of having twins means that these days a single fertilised egg is generally implanted in the woman's womb. A follow-up study of a previous controlled trial where 661 women were randomly assigned the implantation of one or two embryos looked at the overall birth rate after all the frozen embryos had been used. The follow-up study shows that the single-embryo transfer method results in almost as high a chance of having a baby as the double-embryo transfer method, if we include the birth rate from the frozen embryos. 44 per cent of women had a baby in the single-embryo group, and 51 per cent in the double embryo group.
"Just over a quarter of the women in the double-embryo group had twins, which was unusual in the other group," says Olivius. "Multiple pregnancies increase the risk of premature delivery, which can result in complications. Given that the results from the single-embryo transfer are almost as good, this is, in most cases, a better method."HUGE REGIONAL DIFFERENCES
Doctoral thesis at the Sahlgrenska Academy , Institute of Clinical Sciences , Department of Obstetrics and Gynecology
Title of thesis: Cumulative Live Birth Rates after In Vitro Fertilization
This thesis will be defended on Friday 13 November at 1 pm, Stora Aulan, SU/Sahlgrenska, Gothenburg.
Link to thesis: http://hdl.handle.net/2077/21074
Partners in clinical research The Sahlgrenska Academy is the University of Gothenburg 's health sciences faculty, while Sahlgrenska University Hospital is one of northern Europe 's largest hospitals. The two institutions have almost 300 different joint research projects under way. Their strongest research fields include obesity with cardiovascular research and diabetes, biomaterials, pharmacology, neuroscience, paediatrics, epidemiology, rheumatology and microbiology.List of publications
Reproductive Biomedicine Online 2008;17:676-683.
Helena Aaberg | idw
Using fragment-based approaches to discover new antibiotics
21.06.2018 | SLAS (Society for Laboratory Automation and Screening)
Scientists learn more about how gene linked to autism affects brain
19.06.2018 | Cincinnati Children's Hospital Medical Center
In a recent publication in the renowned journal Optica, scientists of Leibniz-Institute of Photonic Technology (Leibniz IPHT) in Jena showed that they can accurately control the optical properties of liquid-core fiber lasers and therefore their spectral band width by temperature and pressure tuning.
Already last year, the researchers provided experimental proof of a new dynamic of hybrid solitons– temporally and spectrally stationary light waves resulting...
Scientists from the University of Freiburg and the University of Basel identified a master regulator for bone regeneration. Prasad Shastri, Professor of...
Moving into its fourth decade, AchemAsia is setting out for new horizons: The International Expo and Innovation Forum for Sustainable Chemical Production will take place from 21-23 May 2019 in Shanghai, China. With an updated event profile, the eleventh edition focusses on topics that are especially relevant for the Chinese process industry, putting a strong emphasis on sustainability and innovation.
Founded in 1989 as a spin-off of ACHEMA to cater to the needs of China’s then developing industry, AchemAsia has since grown into a platform where the latest...
The BMBF-funded OWICELLS project was successfully completed with a final presentation at the BMW plant in Munich. The presentation demonstrated a Li-Fi communication with a mobile robot, while the robot carried out usual production processes (welding, moving and testing parts) in a 5x5m² production cell. The robust, optical wireless transmission is based on spatial diversity; in other words, data is sent and received simultaneously by several LEDs and several photodiodes. The system can transmit data at more than 100 Mbit/s and five milliseconds latency.
Modern production technologies in the automobile industry must become more flexible in order to fulfil individual customer requirements.
An international team of scientists has discovered a new way to transfer image information through multimodal fibers with almost no distortion - even if the fiber is bent. The results of the study, to which scientist from the Leibniz-Institute of Photonic Technology Jena (Leibniz IPHT) contributed, were published on 6thJune in the highly-cited journal Physical Review Letters.
Endoscopes allow doctors to see into a patient’s body like through a keyhole. Typically, the images are transmitted via a bundle of several hundreds of optical...
13.06.2018 | Event News
08.06.2018 | Event News
05.06.2018 | Event News
22.06.2018 | Materials Sciences
22.06.2018 | Earth Sciences
22.06.2018 | Life Sciences