Incidence of recurrent anal sphincter rupture is 7.1 percent

October 26, 2012
Incidence of recurrent anal sphincter rupture ~7 percent
The incidence of recurrent anal sphincter rupture is 7.1 percent, and several risk factors are associated with an increased risk, including excessive birth weight, vacuum extraction, and shoulder dystocia, according to research published online Oct. 19 in BJOG: An International Journal of Obstetrics and Gynaecology.

(HealthDay)—The incidence of recurrent anal sphincter rupture (ASR) is 7.1 percent, and several risk factors are associated with an increased risk, including excessive birth weight, vacuum extraction, and shoulder dystocia, according to research published online Oct. 19 in BJOG: An International Journal of Obstetrics and Gynaecology.

Hanna Jangö, from Herlev University Hospital in Copenhagen, Denmark, and colleagues used data from the National Medical Birth Registry in Denmark to identify patients with a first and a second vaginal delivery from 1997 to 2010 and assessed the risk factors for recurrent ASR.

The researchers found that 4.6 percent of the 159,446 women experienced an ASR at first delivery and 7.1 percent had a recurrent ASR (odds ratio [OR], 5.91). The risk of recurrent ASR increased significantly with birth weight (adjusted OR, 2.94 per increasing kg); vacuum extraction (aOR, 2.96); shoulder dystocia (aOR, 1.98); delivery interval (aOR, 1.08 by year); year of second delivery (aOR, 1.06); and prior fourth-degree ASR (aOR, 1.72). correlated with significantly reduced likelihood of ASR (aOR, 0.91 per increasing cm).

"The incidence of recurrent ASR in our study population was 7.1 percent," the authors write. "Half of the patients with a recurrent ASR have risk factors, but most factors are first known at the very end of delivery. We need studies to quantify the adverse effects of after ASR in order to improve counseling and decision-making on the subsequent mode of delivery."

Explore further: OASIS risk up for nulliparous women with vacuum delivery

More information: Abstract
Full Text (subscription or payment may be required)

Related Stories

OASIS risk up for nulliparous women with vacuum delivery

August 24, 2012
(HealthDay)—For women whose infants are delivered by vacuum extraction, the risk of obstetric anal sphincter injury (OASIS) is significantly higher among nulliparous women than multiparous women, according to a study published ...

Error rate higher in breast imaging reports generated by automatic speech recognition

September 22, 2011
Breast imaging reports generated using an automatic speech recognition system are nearly six times more likely to contain major errors than those generated with conventional dictation transcription, a new study in Canada ...

Recurrent HTN seen for half of women with HTN in pregnancy

May 18, 2012
(HealthDay) -- About half of women who experience a hypertensive disorder of pregnancy and late-preterm delivery develop a hypertensive disorder in a subsequent pregnancy, although few have delivery before 37 weeks in the ...

No increase in preterm delivery with Ramadan fasting

August 7, 2012
(HealthDay) -- Pregnant women who fast during the month of Ramadan do not have an increased risk of preterm delivery, regardless of when during gestation the fasting occurs, according to research published online July 25 ...

Incontinence 20 years after child birth three times more common after vaginal delivery

March 26, 2012
Women are nearly three times more likely to experience urinary incontinence for more than 10 years following a vaginal delivery rather than a caesarean section, finds new research at the Sahlgrenska Academy at the University ...

Gender, high DAS28-P index predictive of pain in early RA

May 18, 2012
(HealthDay) -- For patients with rheumatoid arthritis (RA), female gender and having a high proportion of disease activity score (DAS28) attributable to patient-reported components (joint tenderness and visual analog score) ...

Recommended for you

Teens are growing up more slowly today than they did in past decades

September 19, 2017
Many people believe that teenagers today grow up faster than they used to, while others argue that today's youth are growing up more slowly, perhaps due to overprotection by their parents. A new study explored this issue ...

Video game boosts sex health IQ and attitudes in minority teens

September 18, 2017
A videogame designed by Yale researchers to promote health and reduce risky behavior in teens improves sexual health knowledge and attitudes among minority youth, according to a new study. The findings validate the value ...

Two Americas: Seniors are getting healthier but most gains go to high-income whites

September 18, 2017
Older Americans report feeling dramatically healthier than they did 14 years ago but that good health isn't evenly distributed, with much of the gain going to the wealthiest, most highly educated and whites.

Budget cigarettes linked to higher infant mortality rates in EU countries

September 18, 2017
Scientists already know that high cigarette prices reduce smoking rates, and that levels of smoking affect infant mortality. However until now, there have been no studies to explore the link between cigarette price differentials ...

Immune system linked to alcohol drinking behaviour

September 15, 2017
Researchers from the University of Adelaide have found a new link between the brain's immune system and the desire to drink alcohol in the evening.

A fifth of global deaths linked to diet: study

September 15, 2017
Fewer children are dying before their fifth birthday and although humans are living longer than ever before, one in five deaths last year were linked to poor diet, researchers said Friday.

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.