Navigation Links
Fetal Heart May Develop Later in Pregnancy Than Thought
Date:2/21/2013

THURSDAY, Feb. 21 (HealthDay News) -- The human heart is not fully formed until much later in pregnancy than previously thought, a new study suggests.

British researchers analyzed scans of the hearts of healthy fetuses in the womb and found that the heart has four clearly defined chambers in the eighth week of pregnancy, but does not have fully organized muscle tissue until the 20th week.

This is much later than expected, according to the study published Feb. 20 in the Journal of the Royal Society Interface Focus.

Previous studies of early heart development in humans have been largely based on other mammals -- such as mice or pigs -- as well as adult hearts and samples from dead people.

The data being collected by the University of Leeds-led team is being used to create a computerized simulation of fetal heart development. This will help improve understanding about normal heart development in the womb, and could lead to new ways to detect and treat some fetal heart problems early in pregnancy, according to the researchers.

Human fetuses have a regular heartbeat beginning at about 22 days of pregnancy, which is one reason why the researchers were surprised to find that there is little organization of human heart cells until 20 weeks of pregnancy.

"For a heart to be beating effectively, we thought you needed a smoothly changing orientation of the muscle cells through the walls of the heart chambers. Such an organization is seen in the hearts of all healthy adult mammals," Dr. Eleftheria Pervolaraki, a visiting research fellow at the University of Leeds' School of Biomedical Sciences, said in a university news release.

"Fetal hearts in other mammals such as pigs, which we have been using as models, show such an organization even early in gestation, with a smooth change in cell orientation going through the heart wall. But what we actually found is that such organization was not detectable in the human fetus before 20 weeks," she explained.

More information

The Nemours Foundation offers a fetal development calendar.

-- Robert Preidt

SOURCE: University of Leeds, news release, Feb. 20, 2013


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Fetal exposure to tributyltin linked to obesity
2. Fetal Deaths Up Among Unvaccinated Moms in H1N1 Pandemic: Study
3. Women and Infants Maternal-Fetal Medicine specialist selected for editorial team
4. Treating sleep-disordered breathing in pregnancy may improve fetal health
5. Prenatal Antidepressants Dont Raise Fetal, Infant Death Risk: Study
6. Plastics Chemical BPA Found in Fetal Livers
7. U-M study shows BPA exposure in fetal livers
8. Fetal alcohol exposure affects brain structure in children
9. Dangerous experiment in fetal engineering
10. Pregnant Mothers Gut Changes May Support Fetal Growth
11. New Stanford method enables sequencing of fetal genomes using only maternal blood sample
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Fetal Heart May Develop Later in Pregnancy Than Thought
(Date:6/26/2016)... ... June 27, 2016 , ... Quality metrics are proliferating ... many ways they remain in the eye of the beholder, according to experts who ... of The American Journal of Managed Care. For the full issue, click here ...
(Date:6/26/2016)... Orion, Clarkston, Michigan (PRWEB) , ... June 26, ... ... with respect to fertility once they have been diagnosed with endometriosis. These women ... intercourse but they also require a comprehensive approach that can help for preservation ...
(Date:6/25/2016)... ... ... First Choice Emergency Room , the largest network of independent freestanding emergency ... its new Mesquite-Samuell Farm facility. , “We are pleased to announce Dr. Ogunleye ... M. Muzzarelli, Executive Medical Director of First Choice Emergency Room. , Dr. Ogunleye ...
(Date:6/24/2016)... ... June 24, 2016 , ... A recent article ... are unfamiliar with. The article goes on to state that individuals are now more ... these less common operations such as calf and cheek reduction. The Los Angeles area ...
(Date:6/24/2016)... ... June 24, 2016 , ... Global law firm Greenberg Traurig, P.A. announced ... attorneys chosen by their peers for this recognition are considered among the top 2 ... received special honors as members of this year’s Legal Elite Hall of Fame: ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... , June 24, 2016 ... Market by Type (Standard Pen Needles, Safety Pen Needles), ... (Insulin, GLP-1, Growth Hormone), Mode of Purchase (Retail, Non-Retail) ... MarketsandMarkets, This report studies the market for the forecast ... to reach USD 2.81 Billion by 2021 from USD ...
(Date:6/23/2016)... , June 23, 2016  MedSource announced ... as its e-clinical software solution of choice.  This ... best possible value to their clients by offering ... The preferred relationship establishes nowEDC as the EDC ... for MedSource,s full-service clients.  "nowEDC has long been ...
(Date:6/23/2016)... a startling report released today, National Safety Council research ... proven plan to eliminate prescription opioid overdoses. Prescription Nation ... tackling the worst drug crisis in recorded U.S. history, assigned a ... , New Mexico , Tennessee ... failing states, three – Michigan , ...
Breaking Medicine Technology: