anal sphincter


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Related to anal sphincter: hemorrhoid, sphincter ani, Sphincter ani externus muscle
References in periodicals archive ?
Background: Patients with chronic constipation due to food hypersensitivity have elevated anal sphincter resting pressure, which could potentially contribute to the development of anal fissures.
2-7] Studies suggest that obstetric factors increase the risk of damage to the anal sphincter and subsequent development of AI.
20) Opioid drugs act on receptors throughout the GI tract to cause: * decreased contraction * increased muscle tone (inhibits relaxation) * decreased intestinal secretion of water and electrolytes * decreased mucus secretion * increased anal sphincter tone * decreased defaecation reflex Combined, these effects lead to a slow transit time through the colon with a hard stool and difficulty with initiating defecation.
Moisturize the anal sphincter with a neutral lubricant like coconut oil, applied several times a day and at bedtime.
Protector of the dignity of man for sure, but like Alfred's dynamite, the anal sphincter, and its urinary counterpart, also have the capacity to decimate and forever change the landscape.
Obstetrical anal sphincter laceration is a known risk factor for AI.
Anal stenosis and spastic anal sphincter are known risk factors predisposing to foreign body impaction in the anal canal.
The depleted remainder is dumped into the rectum, where it presses on the bowel walls and anal sphincter.
It is kept open by the anal sphincter muscle going into spasm.
Thus defined, the anal canal corresponds to the segment that is invested by the internal anal sphincter, and is about 4.
The researchers included 133 patients who were experiencing chronic fecal incontinence of at least two episodes per week and who had an external anal sphincter defect of less than 60 degrees.
Tears are grouped according to severity and number of tissue layers involved: First degree - injury to skin only, second degree - injury to the perineal muscles but not the anal sphincter, third degree - injury to the perineum involving the anal sphincter (further divided into 3a: less than 50% of external sphincter thickness torn; 3b: more than 50% of external sphincter thickness torn; 3c: internal anal sphincter torn) and fourth degree - injury to the perineum involving the anal sphincter complex and anal epithelium.
It was therefore difficult to decide whether the pain came from the bladder or the rectum, and whether rectal discomfort indicated the need to defaecate or to pass flatus; and it could take many minutes between the urge to pass flatus and the ability to do so, because of anal sphincter spasm.
Third, the anal sphincter pressure was recorded with the anal balloon, and fourth, abdominal pressure was recorded with a rectal balloon in the abdomen for a more direct recording of abdominal muscle contraction.