• Test reports in the Field of Health, Fitness and Medicine
  • Data Protection
  • Impressum
  • Sitemap
  • Home
  • Uncategorized
  • IVF Method Linked to Size of Babies
  • 30. January 2021
  • 0 comments
  • Maria Bauer
  • Uncategorized

IVF Method Linked to Size of Babies

The way in which embryos are prepared during in vitro fertilization may  influence the size of the baby that's born, a new study from Finland suggests.

Embryos that spend long periods growing in culture (around five to six days) before being transferred to the mother’s womb are more likely to be born heavier than normal for their gestational age, compared to embryos that spend a shorter period in culture (two to three days), the study found. (Gestational age refers to how far along a pregnancy is.)

On the flip side, embryos that spend long periods in culture are less likely to be born small for their gestational age, the researchers said.

Previous studies have shown babies born as a result of  IVF treatment are at an increased risk for preterm birth and low birth weight. Factors related to the pregnancy, or to the IVF technique itself, may be responsible for the association. Few studies have looked at the effect of culture time on the baby's birth weight, however.

Still, additional, larger studies are needed to confirm the new findings, the researchers said.

In the study, researchers at the University of Helsinki analyzed information from 1,079 singleton babies (not twins) who were born after their mothers had undergone IVF.

During IVF, eggs from the mother are fertilized in a laboratory, and allowed to grow in culture for about one to six days before they are transferred to the mother's uterus. Typically, embryos are transferred to the uterus after two to three days, according to the American Pregnancy Association.

The Helsinki researchers determined the percentage of babies that were born at a normal weight; that were small for gestational age; or that were large for gestational age. Generally, 10 percent of babies are born small for gestational age, 10 percent are large for gestational age, and 80 percent are normal weight.

The average weight of babies in the study was about 7.7 pounds.

Among embryos that were cultured for two to three days, about 10 percent were small for gestational age, and 10 percent were large for gestational age, as expected.

But among those that spent five to six days in culture, close to 19 percent were large for gestational age, and 3 percent small for gestational age, the researchers said.

Babies born small for gestational age are at increased risk for complications such as low blood sugar, and neurological disabilities. Later in life, babies that were small for their gestational age may be at increased risk for such chronic conditions as heart disease. Large-for-gestational-age babies may be heavier in childhood, and thus at increased risk for adult obesity, the researchers said.

The reason for the finding is not clear. It could be that certain stages of embryo development differ depending upon whether they take place in a laboratory or the womb, the researchers said.

Large-for-gestational-age babies were also more likely to be born to mothers with high body mass index or to women who had previously given birth. The mother's age, cause of infertility or method of fertilization did not affect the results.

The study was published online Dec. 11 in the journal Human Reproduction.

Pass it on: IVF embryos that spend long periods in culture may be at increased risk of being born large for gestational age.

Follow Rachael Rettner on Twitter @RachaelRettner, or MyHealthNewsDaily @MyHealth_MHND. We're also on Facebook & Google+.

  • 11 Big Fat Pregnancy Myths
  • 7 Facts About Home Births
  • Article: 5 Myths of Fertility Treatments
Maria-Cakehealth
Maria Bauer

Maria is our expert for medicine, fitness and general health. Her contributions are particularly convincing through completeness, accuracy and her own personal experience. Maria also writes for other health magazines, which has enabled her to build up her expert status.

Leave Comment

or cancel reply

Suche
Beliebte Beiträge
  • 7 Ways Alcohol Affects Your Health
    • 18. February 2021
    • 0
  • For Women, Sex May Be Improved by ‘Mindfulness Meditation’
    • 18. February 2021
    • 0
  • Autistic Brain Excels at Recognizing Patterns
    • 9. February 2021
    • 0
  • Swine Flu May Cause Baldness
    • 9. February 2021
    • 0
  • Dogs’ Contagious Cancer Cells May Survive By Theft
    • 9. February 2021
    • 0
  • Are You Sitting Down? If You’re a College Senior, Probably
    • 9. February 2021
    • 0
  • New Test May Screen Donated Blood for Fatal Disease-Causing Proteins
    • 9. February 2021
    • 0
  • Exercise Can’t Undo the Damage of Too Much Screen Time
    • 9. February 2021
    • 0
  • Melanoma Drug Shrinks Tumors, Study Finds
    • 9. February 2021
    • 0
  • Co-Conspirator Cells Contribute to Skin Cancer
    • 9. February 2021
    • 0
  • YouTube May Help Elderly Dementia Patients
    • 9. February 2021
    • 0
  • Brain Functioning Decline Higher in Southern ‘Stroke Belt’
    • 9. February 2021
    • 0
  • 8 Tips for Healthy Aging
    • 9. February 2021
    • 0
  • Alzheimer’s Vs. Normal Aging: How to Tell the Difference
    • 9. February 2021
    • 0
  • Soy Compounds May Cut Risk of Some Breast Cancers
    • 9. February 2021
    • 0
  • Estrogen May Curb Breast Cancer As Well As Promote It
    • 9. February 2021
    • 0
  • Flu Season Worse Than Usual
    • 9. February 2021
    • 0
  • Most Young Flu Victims Had Not Been Vaccinated, Fatality Report Says
    • 9. February 2021
    • 0
  • Indoor Tanners Use Beds Despite Boosting Skin Cancer Risk
    • 9. February 2021
    • 0
  • Gene Therapy May Ease Tremors in Parkinson’s Patients
    • 9. February 2021
    • 0
  • Alzheimer’s Often Misdiagnosed Until Later On
    • 9. February 2021
    • 0
  • In Trauma Patients, Steroids May Reduce Pneumonia Risk
    • 9. February 2021
    • 0
  • Will USDA’s New ‘Plate’ Icon Make a Difference in American Diets?
    • 9. February 2021
    • 0
  • Can Changing Your Diet Decrease Your Risk of Alzheimer’s?
    • 9. February 2021
    • 0
  • Preventive Measures Against Alzheimer’s Still Uncertain, Report Finds
    • 9. February 2021
    • 0
  • Exercise During Pregnancy Benefits Baby’s Heart
    • 9. February 2021
    • 0
  • Hypertension Death Rate Drops, But Fatalities Still High
    • 9. February 2021
    • 0
  • More Years of Schooling Have Healthful Effect on Blood Pressure
    • 9. February 2021
    • 0
  • Heavy Beer Drinkers Increase Their Gastric Cancer Risk
    • 9. February 2021
    • 0
  • Weight Gain: How Food Actually Puts on Pounds
    • 9. February 2021
    • 0
  • Want a Smaller Waist? Take More Breaks From Sitting
    • 9. February 2021
    • 0
  • New Rules on Vitamin D and Calcium: Most People Get Enough
    • 9. February 2021
    • 0
  • For Melanoma Patients, Arthritis Drug Could Treat Disease
    • 9. February 2021
    • 0
  • Brain Overgrowth in Tots Is Linked to Autism
    • 9. February 2021
    • 0
  • Airborne Mad Cow Disease Possible, But Unlikely
    • 9. February 2021
    • 0
  • Most High School Kids Don’t Get Enough Exercise, CDC Reports
    • 9. February 2021
    • 0
  • Is the 17 Day Diet Just Another Weight-Loss Gimmick?
    • 9. February 2021
    • 0
  • Lead Exposure May Delay Puberty in Girls
    • 9. February 2021
    • 0
  • The Healthy Geezer: Does Mercury Cause Cancer?
    • 9. February 2021
    • 0
  • 11% of Infants Born Preterm Worldwide
    • 9. February 2021
    • 0
  • Severe Morning Sickness Linked to Preterm Births
    • 9. February 2021
    • 0
  • More Money and No Dad Could Mean Early Puberty in Girls
    • 9. February 2021
    • 0
  • Too Little or Too Much Sleep May Raise Heart, Stroke Risks
    • 8. February 2021
    • 0
  • Relapse Common for Teens Who Overcome Depression
    • 8. February 2021
    • 0
  • Repeated Miscarriages May Increase Women’s Heart Attack Risk
    • 8. February 2021
    • 0
  • Earlier Detection of Dangerous Ectopic Pregnancies Possible with New Marker
    • 8. February 2021
    • 0
  • It’s in the Blood: New Hope for Detecting Schizophrenia
    • 8. February 2021
    • 0
  • Alcohol Abuse May Lead to Marriage Postponement, Separation
    • 8. February 2021
    • 0
  • Marriage Trouble Could Mean Poor Sleep for Baby
    • 8. February 2021
    • 0
  • Weight-Loss Surgery May Improve Memory
    • 8. February 2021
    • 0

Copyright © 2020 by cakehealth.com

Impressum|Data Protection | Sitemap EN|Sitemap DE