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Increased fertility rate for IVF patients achieved by new equipment design

Date:
March 1, 2012
Source:
Newcastle University
Summary:
A novel system for processing embryos during IVF treatment has been shown to significantly improve the chances of pregnancy -- by more than a quarter.

A novel system for processing embryos during IVF treatment has been shown to significantly improve the chances of pregnancy -- by more than a quarter.

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Pioneered by a Newcastle team of fertility experts within the University and NHS, the innovative design of interlinked incubators provides a totally enclosed and controlled environment within which every step of the IVF process can be performed.

Research published recently in the journal PLoS ONE reveals that the introduction of the new system into the Newcastle Fertility Centre at Life, part of the Newcastle Hospitals NHS Foundation Trust, resulted in a 27% increase in pregnancy rate compared with conventional equipment used in IVF treatment labs.

Traditionally, in IVF procedures embryos are cultured in incubators, which provide a controlled environment. However, it is necessary to check embryo development under the microscope. This generally involves removing them from the controlled environment of the incubators, which may be harmful. The system developed by the Newcastle team overcomes this problem by enabling all procedures to be conducted within an enclosed and controlled environment.

Initially the new system was tested extensively to make sure that it maintained stable environmental conditions (for air quality and temperature). Subsequent studies on embryos donated to research showed a significant increase in the proportion of embryos developing normally over a period of 6-7 days.

After introduction into the laboratories at Newcastle Fertility Centre at Life, the team were able to compare the treatment outcomes over a period of three years. The study, found that 45% achieved a clinical pregnancy compared to 32% and 35% in each of the preceding two years. This represents a minimum increase of 27% in the clinical pregnancy rate; a clinical pregnancy means that a heart beat was seen on the scan at 7 weeks gestation.

The study, which took account of variability between patients, included women aged 37 or less, undergoing their first cycle of IVF or ICSI, and who had more than ten ovarian follicles (the structures which contain a mature egg).

In response to the findings, Infertility Network UK's Chief Executive, Clare Lewis-Jones said: "We welcome this initial study and we will be following its progress with interest. Women who have to undergo IVF naturally want the best possible chance of having a child and any new developments which improve IVF success rates are most definitely to be welcomed."

This is the first and only system of its kind to be installed in the UK, however, based on the innovative design from the Newcastle team, similar systems have already been exported to IVF clinics in the Netherlands, Canada and Thailand.

This positive benefit to IVF patients came from investment into cutting edge research in embryonic stem cell research and was funded by the Medical Research Council and One North East.


Story Source:

The above story is based on materials provided by Newcastle University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Louise Hyslop, Nilendran Prathalingam, Lynne Nowak, Jeanette Fenwick, Steve Harbottle, Samantha Byerley, John Rhodes, Bruce Watson, Robin Henderson, Alison Murdoch, Mary Herbert. A Novel Isolator-Based System Promotes Viability of Human Embryos during Laboratory Processing. PLoS ONE, 2012; 7 (2): e31010 DOI: 10.1371/journal.pone.0031010

Cite This Page:

Newcastle University. "Increased fertility rate for IVF patients achieved by new equipment design." ScienceDaily. ScienceDaily, 1 March 2012. <www.sciencedaily.com/releases/2012/03/120301084302.htm>.
Newcastle University. (2012, March 1). Increased fertility rate for IVF patients achieved by new equipment design. ScienceDaily. Retrieved November 22, 2014 from www.sciencedaily.com/releases/2012/03/120301084302.htm
Newcastle University. "Increased fertility rate for IVF patients achieved by new equipment design." ScienceDaily. www.sciencedaily.com/releases/2012/03/120301084302.htm (accessed November 22, 2014).

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