Featured Research

from universities, journals, and other organizations

High clot risk for women admitted to hospital during pregnancy

Date:
November 7, 2013
Source:
BMJ-British Medical Journal
Summary:
Admission to hospital during pregnancy for reasons other than delivery carries a substantially increased risk of serious blood clots (known as venous thromboembolism or VTE), finds a study.

Admission to hospital during pregnancy for reasons other than delivery carries a substantially increased risk of serious blood clots (known as venous thromboembolism or VTE), finds a study published on bmj.com today.

Clots risk was also high in the 28 days after discharge, with a particularly high rate among women hospitalized for three or more days -- and they were more likely in late pregnancy and in women aged 35 years and over.

Venous thromboembolism affects 1-2 pregnancies in every 1,000 and is one of the leading causes of maternal deaths in developed countries.

In the general population, admission to hospital substantially increases the risk of VTE and, in the UK alone, is responsible for more than 25,000 deaths each year. But it is not clear if the same level of risk exists for pregnant women.

So researchers based at the University of Nottingham and Guy's & St Thomas' Foundation Trust in London set out to assess the risk of a first VTE in hospitalized pregnant women compared with rates outside hospital.

Using linked primary and secondary care data records, they identified 206,785 women aged 15-44 years, with no previous history of VTE, who had one or more pregnancies between 1997 and 2010. Other maternal and pregnancy associated risk factors and medical conditions that could have affected the results were taken into account.

Overall, they found that hospitalization during pregnancy was associated with an excess risk of 16.6 cases per 1,000 person-years compared with time outside hospital (17.5-fold increase in risk). There was also an excess risk of 5.8 cases per 1,000 person years in the 28 days after discharge with VTE events more likely to occur in the third trimester of pregnancy and in women aged 35 years and over.

Compared with time outside hospital, those with a hospital stay of less than three days had an excess risk of VTE of 4.6 cases per 1,000 person-years, whereas those with a stay of three or more days had an excess risk of 14.1 cases per 1,000 person-years.

Results remained broadly similar when adjusted for other factors associated with increased risk of VTE. "To our knowledge, this is the first study to assess the impact of antepartum hospitalization on the incidence of VTE during pregnancy," say the authors.

In light of their findings, they suggest these periods "should receive careful consideration" when assessing which women should receive anti-clotting drugs while in hospital during pregnancy.


Story Source:

The above story is based on materials provided by BMJ-British Medical Journal. Note: Materials may be edited for content and length.


Journal Reference:

  1. A. Abdul Sultan, J. West, L. J. Tata, K. M. Fleming, C. Nelson-Piercy, M. J. Grainge. Risk of first venous thromboembolism in pregnant women in hospital: population based cohort study from England. BMJ, 2013; 347 (nov07 15): f6099 DOI: 10.1136/bmj.f6099

Cite This Page:

BMJ-British Medical Journal. "High clot risk for women admitted to hospital during pregnancy." ScienceDaily. ScienceDaily, 7 November 2013. <www.sciencedaily.com/releases/2013/11/131107204231.htm>.
BMJ-British Medical Journal. (2013, November 7). High clot risk for women admitted to hospital during pregnancy. ScienceDaily. Retrieved July 28, 2014 from www.sciencedaily.com/releases/2013/11/131107204231.htm
BMJ-British Medical Journal. "High clot risk for women admitted to hospital during pregnancy." ScienceDaily. www.sciencedaily.com/releases/2013/11/131107204231.htm (accessed July 28, 2014).

Share This




More Health & Medicine News

Monday, July 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Trees Could Save More Than 850 Lives Each Year

Trees Could Save More Than 850 Lives Each Year

Newsy (July 27, 2014) A national study conducted by the USDA Forest Service found that trees collectively save more than 850 lives on an annual basis. Video provided by Newsy
Powered by NewsLook.com
Google's Next Frontier: The Human Body

Google's Next Frontier: The Human Body

Newsy (July 27, 2014) Google is collecting genetic and molecular information to paint a picture of the perfectly healthy human. Video provided by Newsy
Powered by NewsLook.com
What's To Blame For Worst Ebola Outbreak In History?

What's To Blame For Worst Ebola Outbreak In History?

Newsy (July 27, 2014) A U.S. doctor has tested positive for the deadly Ebola virus, as the worst-ever outbreak continues to grow. Video provided by Newsy
Powered by NewsLook.com
Losing Sleep Leaves You Vulnerable To 'False Memories'

Losing Sleep Leaves You Vulnerable To 'False Memories'

Newsy (July 27, 2014) A new study shows sleep deprivation can make it harder for people to remember specific details of an event. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins