Navigation Links
Smallest and largest fetuses at greater risk of being stillborn, research finds
Date:6/25/2012

TORONTO, June 25, 2012The tiniest and the heaviest fetuses are at much higher risk of being stillborn than those of average weight, new research has found.

Fetuses who are "severely small for gestational age," or weigh below the bottom one percentile of all fetuses, disproportionately account for about six per cent of all stillbirths, according to researchers at St. Michael's Hospital.

Fetuses that are "severely large for gestational age," or weigh above the 99th percentile, account for nearly one per cent of stillbirths.

"In this study of all registered liveborn and stillborn infants in Ontario, extreme underweight and overweight states confer the highest risk of stillbirth," said Drs. Joel Ray and Marcelo Urquia, authors of the paper that appears in the current issue of the Journal of Perinatology.

Stillbirth is traditionally defined as the death of a fetus at more than 23 weeks of gestation weighing 500 grams or more. However, Drs. Ray and Urquia included babies born starting as early as 20 weeks of gestation on the grounds that maternal-fetal bonding is well established at that point, since most mothers-to-be have undergone a Level 2 ultrasound detailing the unborn baby's developing bones and organs.

Including those babies provides new information about the degree to which low and high weights are associated with stillbirths, including those before the point of viability, Dr. Ray said. That, in turn, may help doctors better decide at which time point it is better to allow a pregnancy to continue so the fetus can grow, or to deliver a premature baby who might otherwise die in the womb.

The rate of stillbirths in industrialized countries is about six per 1,000, of which half occur after 27 weeks of gestation. In poorer countries, the rate is up to five times higher. Stillbirths are more common than the death of a baby after birth, such as from prematurity or as a result of Sudden Infant Death Syndrome. Yet
'/>"/>

Contact: Leslie Shepherd
shepherdl@smh.ca
416-864-6094
St. Michael's Hospital
Source:Eurekalert

Page: 1 2

Related biology news :

1. U-M forecasters predict second-smallest Gulf of Mexico dead zone
2. Worlds largest release of comprehensive human cancer genome data helps speed discoveries
3. Could cap and trade for water solve problems facing the United States largest rivers?
4. Nottingham researchers lead worlds largest study into pre-eclampsia
5. UI professor identifies largest known crocodile
6. Building the European Unions Natura 2000 -- the largest ever network of protected areas
7. Highly exposed to phthalates as fetuses, female mice have altered reproductive lives
8. Mercury rising: Greater L.A. to heat up an average 4 to 5 degrees by mid-century
9. Is rainfall a greater threat to Chinas agriculture than warming?
10. Nearby chimpanzee populations show much greater genetic diversity than distant human populations
11. Loss of biodiversity increasingly threatens human well-being: UBC, University of Michigan research
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/20/2014)... 20, 2014) Women who are poor experience higher ... with elevated levels of the stress hormone, putting ... life, according to a new research from the University ... in the American Journal of Human Biology , ... relate it directly to the socioeconomic status of their ...
(Date:8/20/2014)... Carolina State University researchers have developed methods for electronically ... the electrical signals moths use to control those muscles. ... remotely-controlled moths, or "biobots," for use in emergency response. ... whether we can control the movement of moths for ... says Dr. Alper Bozkurt, an assistant professor of electrical ...
(Date:8/20/2014)... DENVER , Aug. 20, 2014  The ... take place in Tampa, Florida ... interactive sessions with Steven Rahman, Director, Technology and Strategy ... Sector at Experian. The theme of this year,s ... and Privacy. "Biometrics UnPlugged: Mobility ...
Breaking Biology News(10 mins):CU Denver researcher shows economic disparities impact infant health 2Research paves way for development of cyborg moth 'biobots' 2Biometrics UnPlugged: Mobility at the Crossroads of Commerce & Privacy to Feature Interactive Sessions with Samsung and Experian 2
... major component of soy, was found to disrupt the ... were given the product. This study adds to a ... of genistein on the reproductive system. , "Although we ... on genistein translate to the human population, there is ...
... and it becomes harder to balance home and work, many ... sleep deprivation impairs spatial learning -- including remembering how to ... to understand how that happens: Learning spatial tasks increases the ... involved with spatial memory called the hippocampus. Sleep plays a ...
... do an animal's senses change as it evolves to ... system of the fruit fly Drosophila melanogaster, which feeds ... species D. sechellia, a specialist particularly drawn to a ... act on several different levels of a sensory system ...
Cached Biology News:Component in soy products causes reproductive problems in laboratory mice 2Losing sleep undoes the rejuvenating effects new learning has on the brain 2Losing sleep undoes the rejuvenating effects new learning has on the brain 3Losing sleep undoes the rejuvenating effects new learning has on the brain 4Losing sleep undoes the rejuvenating effects new learning has on the brain 5Evolutionary shifts in olfactory sensitivities in fruit flies 2
(Date:8/19/2014)... Jolla, CA (PRWEB) August 19, 2014 ... toll Parkinson’s disease can take on an individual. ... extremities, decreased facial expression, problems swallowing and severe depression. ... to the dying off of dopamine producing neurons of ... themselves from a disease that slowly and progressively gets ...
(Date:8/19/2014)... 19, 2014 CSSi, the leader in patient ... the formation of the company,s Medical and Clinical Advisory ... of Dr. William E. Gannon, Jr. to ... The MCAB, with Dr. Gannon,s leadership, ... areas and set strategic goals for the advancement and ...
(Date:8/19/2014)... 2014 /PRNewswire/ - iCo Therapeutics Inc. ("iCo" or "the ... of its Oral Amphotericin B (Oral Amp B) ... conducted by ImmuneCarta®, the immune monitoring business unit ... of Oral Amp B in reactivating latent HIV ... intensive treatment with antiretroviral therapy. ...
(Date:8/18/2014)... 2014) -- A new therapy developed by researchers ... College of Medicine and Columbia University Medical Center ... interventional cardiovascular disease treatment. , The researchers ... molecular therapy could selectively inhibit blood vessel re-narrowing ... procedure using a balloon catheter to open narrowed ...
Breaking Biology Technology:As We Mourn Robin Williams’ Passing, His Death Sheds Light on Patients Struggling with Parkinson’s Disease 2As We Mourn Robin Williams’ Passing, His Death Sheds Light on Patients Struggling with Parkinson’s Disease 3CSSi Appoints Dr. William E. Gannon, Jr. to Newly Formed Medical and Clinical Advisory Board 2CSSi Appoints Dr. William E. Gannon, Jr. to Newly Formed Medical and Clinical Advisory Board 3iCo Therapeutics Announces Positive Oral Amphotericin B Study Results 2iCo Therapeutics Announces Positive Oral Amphotericin B Study Results 3Selective therapy may improve artery repair after interventional cardiovascular procedures 2Selective therapy may improve artery repair after interventional cardiovascular procedures 3
... 19 /Xinhua-PRNewswire/ -- Shanghai Century (Amex:,SHA), a special ... Co., Ltd (Kelun), China,s largest producer of,intravenous (IV) ... highlights with respect to the consolidated results of,operations ... entity,(Kelun Group) for the first half of 2007. ...
... With the Middle Class Using India,s Private Health Care ... be an Increasing Need for Diagnostic Imaging ... Group,forecasts that growing demand for private health care in ... As a result, the,market will experience rapid growth, reaching ...
... to Accurately Measure Cardiac Output ... Testing (CPX), WASHINGTON, September 19 Cheetah Medical Inc.,developers ... announced at HFSA the results of the study,"Markers of ventilatory ... study, led by Dr. Jon Myers of Stanford University and ...
Cached Biology Technology:Shanghai Century Acquisition Corporation Announces Sichuan Kelun Pharmaceutical Co Results for the Six Months Ended June 30, 2007 2Shanghai Century Acquisition Corporation Announces Sichuan Kelun Pharmaceutical Co Results for the Six Months Ended June 30, 2007 3Shanghai Century Acquisition Corporation Announces Sichuan Kelun Pharmaceutical Co Results for the Six Months Ended June 30, 2007 4Shanghai Century Acquisition Corporation Announces Sichuan Kelun Pharmaceutical Co Results for the Six Months Ended June 30, 2007 5Not Just for the Rich: India's Private Health Care is Booming 2Cheetah Medical's NICOM Non-Invasive Cardiac Output Monitor Featured in a Presentation at the Heart Failure Society of America (HFSA) Annual Meeting 2Cheetah Medical's NICOM Non-Invasive Cardiac Output Monitor Featured in a Presentation at the Heart Failure Society of America (HFSA) Annual Meeting 3
... by R. Edwards (1996) • ... types of immunoassays, including RIA, ... and on the photoluminescent and ... information is also given on ...
ANTI S. ENTERID LPS...
B.D. Hames and D.M. Glover (1996) • This issue covers T-Cell antigen receptor genes; T-Lymphocyte signal transduction; B-Cell activation antibody engineering and the complement system and other ...
Request Info...
Biology Products: