HOME >> MEDICINE >> NEWS
Frozen, fresh sperm both effective for in vitro fertilization

ROCHESTER, Minn. -- A new Mayo Clinic study shows that couples using in vitro fertilization have the same likelihood of successful pregnancy whether the sperm used is frozen or fresh. Researchers presented the results today at the annual scientific meeting of the American Urological Association in San Francisco.

"Without these data, we were concerned that frozen sperm might reduce the birth rate," says Alan Thornhill, Ph.D., senior author of the study and director of the Mayo Clinic in vitro fertilization laboratory. "Now, we believe that concern is unwarranted."

In vitro fertilization starts with a woman taking fertility drugs to stimulate her ovaries to produce more eggs than usual. When the eggs are mature, they are retrieved from the ovary and introduced to washed sperm to allow fertilization. The availability of sperm on the day eggs are retrieved is critical to success.

Two to five days after retrieval, the embryos (the fertilized eggs) are transferred to the uterus.

How the study was done

Researchers reviewed data collected at Mayo Clinic from 1993 to 2003. Fresh sperm were used in 1,580 cycles and frozen sperm in 309 cycles. At Mayo Clinic, sperm samples are frozen as part of the in vitro process in the event that a fresh sample is not available on the required day.

Researchers compared the effectiveness of fresh vs. frozen sperm by calculating the cumulative live birth rate -- that is at least one baby born from a single egg retrieval from the mother. Embryos from a single egg retrieval may be transferred over one or more transfer cycles.

For cycles using fresh sperm, the cumulative live birth rate was 51.6 percent. For frozen, it was 53.1 percent.

Dr. Thornhill says Mayo Clinic doctors still prefer to use fresh sperm when possible because the number of sperm and their movement are reduced by freezing and thawing.

If fresh sperm is not available -- because of the man's illness,
'"/>


12-May-2004


Page: 1 2

Related medicine news :

1. Reconstituted blood is better for infants heart surgery than fresh blood
2. College freshmen more politically liberal than in the past, UCLA survey reveals
3. Study identifies genetic fingerprint of healthy sperm
4. USC researchers find ozone lowers sperm counts
5. Strategy effective against drug resistant tuberculosis
6. Study shows patch therapy may be as effective as oral medications
7. Chronic pain treatments more effective when taken together, new study shows
8. Geodon effective in psychiatric emergencies; Sharply reduces time in restraints
9. Costs of antidepressants could have funded effective alternatives
10. New ways to design safer & more effective topical (transdermal) drug delivery announced in the PNAS
11. Government wasting your taxpayer money on ineffective drug cure

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Frozen fresh sperm both effective for vitro fertilization

(Date:10/22/2014)... October 22, 2014 Shriners Hospitals for ... will change the current location of Shriners Hospitals for ... Limestone across from the University of Kentucky Albert B. ... ambulatory care center, owned and operated by Shriners Hospitals ... needs of children and their families well into the ...
(Date:10/22/2014)... California (PRWEB) October 22, 2014 Hay House ... Move Beyond Addiction and Upgrade Your Life (Paperback; $10.82) written ... of Yoga & Recovery. This book is meant to ... in a life of recovery. , Recovery 2.0 is ... 12 Steps; Recovery 2.0 is a guide for what comes ...
(Date:10/22/2014)... October 22, 2014 During the Western ... water supply runs dangerously low, Southern Oregon’s water is ... rivers, despite the lowest mountain snow pack on record ... summer and early autumn.* That was the observation of ... new book “Hiking Southern Oregon,” during an interview with ...
(Date:10/22/2014)... (PRWEB) October 22, 2014 Healthcare ... completing their continuing education at home or on-the-go ... access to 20 brand new, premium Seminar-on-Demand CE ... catalog of over 2,000 hours of ... customize their educational experience. With such a diverse ...
(Date:10/22/2014)... October 22, 2014 Although there are only 24 ... for many people who have trouble finding time within their busy ... exercise for long periods of time to get in shape. Here ... while on the go. , Change Up Your Commute , ... work to add some exercise into your daily routine. If you ...
Breaking Medicine News(10 mins):Health News:Shriners Hospitals for Children - Lexington Announces Plan to Build New $47 Million Facility 2Health News:Shriners Hospitals for Children - Lexington Announces Plan to Build New $47 Million Facility 3Health News:Hay House Announces The Official Release of Recovery 2.0: Move Beyond Addiction and Upgrade Your Life 2Health News:Hay House Announces The Official Release of Recovery 2.0: Move Beyond Addiction and Upgrade Your Life 3Health News:Southern Oregon Is West’s Most Drought Proof Fresh Water Region Say Hiking Guide Authors 2Health News:Southern Oregon Is West’s Most Drought Proof Fresh Water Region Say Hiking Guide Authors 3Health News:Southern Oregon Is West’s Most Drought Proof Fresh Water Region Say Hiking Guide Authors 4Health News:Top Provider of Continuing Education at Home Releases 20 New Online Courses 2Health News:HealthGuideMD Presents Ways to Improve Your Exercise and Fitness 2
(Date:10/22/2014)... , Oct. 22, 2014   Reproductive Medicine ... leader in the field of infertility, presents new ... embryonic screening. The research abstract, released during the ... Medicine (ASRM) meeting in Honolulu, Hawaii ... single gene defect (SGD) pre-implantation genetic diagnosis (PGD). ...
(Date:10/22/2014)... A new report by Allied ... Form, End user, Application and Geography) - Size, Share, ... Opportunities, Segmentation and Forecast, 2013 - 2020", considers commercial ... key trends tracked, it is anticipated that the market ... 2020, registering a CAGR of 6.2% from 2014 to ...
(Date:10/22/2014)... 21, 2014   BioNano Genomics , the ... research centers to purchase an Irys™ System . ... Cancer Institute (NCI), NIH Intramural Sequencing Center (NISC) and ... obtaining a comprehensive view of a genome was ... does not deliver the scalability or reliability to ...
Breaking Medicine Technology:New IVF Research Highlights Improved Genetic Screening Approach To Help Parents Have Healthier Babies 2New IVF Research Highlights Improved Genetic Screening Approach To Help Parents Have Healthier Babies 3Global Disposable Gloves Market Expected to Grow to $7.9 Billion by 2020 - Allied Market Research 2Global Disposable Gloves Market Expected to Grow to $7.9 Billion by 2020 - Allied Market Research 3Global Disposable Gloves Market Expected to Grow to $7.9 Billion by 2020 - Allied Market Research 4BioNano's Irys System Adopted by Leading Genomics Centers for Comprehensive Detection of Human Genome Structural Variation 2BioNano's Irys System Adopted by Leading Genomics Centers for Comprehensive Detection of Human Genome Structural Variation 3
Cached News: