anal sphincter


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anal sphincter

[′ān·əl ′sfiŋk·tər]
(anatomy)
Either of two muscles, one voluntary and the other involuntary, controlling closing of the anus in vertebrates.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
"So what is it like to live with an anal sphincter defect?
'I had a baby, now bouncy castles fill me with dread' Thousands of women in Wales suffer bowel incontinence brought on by tears that occur during childbirth. Here Julie Cornish, a colorectal consultant surgeon, explains more about the taboo subject..
Some studies, however, have reported that the probability of new anal sphincter injury following vaginal delivery is 3% (18).
Non-surgical acute traumatic perianal injuries/Cerrahi disi akut travmatik perianal yaralanmalar
In the following 3 hours, the patient developed symptoms of paraplegia and paresthesia below the T4 dermatome in the ED and lost his anal sphincter function.
Primary thoracic endovascular aortic repair to aortic coarctation complicating with spontaneous epidural hemorrhage
Absence of any anal fissure/fistula or associated inflammatory signal changes around anal sphincter muscles suggests HMAS in patients with relevant clinical signs and symptoms (Fig.
MRI evaluation of anal and perianal diseases
EAUS showed both complete defect of EAS and complete and/or partial defect of the internal anal sphincter (IAS) in 6 patients.
A surgical technique for secondary repair of obstetric anal sphincter injuries; sphinctero-vagino-perineoplasty/Obstetrik anal sfinkter hasarinin sekonder onariminda cerrahi teknik; sfinktero-vajino-perineoplasti
Mediolateral episiotomy reduces the risk for anal sphincter injury during operative vaginal delivery.
Prevalence of high-grade perineal tear during labor in Mexican adolescents/ Prevalencia de desgarro de alto grado en parto de adolescentes mexicanas
In the distal anal canal, the IAS is thin; therefore, we measured the PBT, anterior anal sphincter defect and anal sphincter defect angle at the level of the mid-anal canal, which can be clearly delineated by the presence of the most prominent hypoechoic ring of the IAS.
Does perineal body thickness affect fecal incontinence in multiparous patients?
Clinically detectable anal sphincter injuries occur in about 0.4-19% of vaginal deliveries.
The effect of pregnancy and delivery on anal function in black Africans and Indians
Modified Ritgen's maneuver for anal sphincter injury at delivery: a randomised controlled trial.
MODIFIED RITGEN MANEUVER IN PERINEAL PROTECTION--SIXTY-YEAR EXPERIENCE
A combine surgical and medical approach with the use of botulinum toxin injection into anal sphincter also causes reversible sphincterotomy and was first investigated in 1993.15-16
EFFICACY AND SAFETY OF GLYCERYL TRINITRATE (GTN) IN THE TREATMENT OF CHRONIC ANAL FISSURE
* Exposure of horizontal fibres of the internal anal sphincter (IAS).
A STUDY OF 100 CASES OF LATERAL INTERNAL SPHINCTEROTOMY FOR FISSURE-IN-ANO
Faecal incontinence results from damaged or weakened anal sphincter muscles.
RDD Pharma awarded orphan designation for RDD-0315 in the EU for treating faecal incontinence in patients with spinal cord injury

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