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

Americans are getting more sleep

January 19, 2018
Although more than one in three Americans still don't get enough sleep, a new analysis shows first signs of success in the fight for more shut eye. According to data from 181,335 respondents aged 15 and older who participated ...

Wine is good for you—to a point

January 18, 2018
The Mediterranean diet has become synonymous with healthy eating, but there's one thing in it that stands out: It's cool to drink wine.

Sleep better, lose weight?

January 17, 2018
(HealthDay)—Sleeplessness could cost you when it's time to stand on your bathroom scale, a new British study suggests.

Who uses phone apps to track sleep habits? Mostly the healthy and wealthy in US

January 16, 2018
The profile of most Americans who use popular mobile phone apps that track sleep habits is that they are relatively affluent, claim to eat well, and say they are in good health, even if some of them tend to smoke.

Improvements in mortality rates are slowed by rise in obesity in the United States

January 15, 2018
With countless medical advances and efforts to curb smoking, one might expect that life expectancy in the United States would improve. Yet according to recent studies, there's been a reduction in the rate of improvement in ...

Can muesli help against arthritis?

January 15, 2018
It is well known that healthy eating increases a general sense of wellbeing. Researchers at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) have now discovered that a fibre-rich diet can have a positive influence ...

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.