Internal Anal Sphincter
The neuromuscular control of human internal anal sphincter smooth muscle: The role of nitric oxide
... C onventional neurotransm itters such as acetylcholine and noradrenaline are stored in m em brane bo u n d vesicles p rio r to their release from presynaptic nerves, and they influence postsynaptic cells by interacting w ...
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Risk factors for internal anal sphincter dysfunction in Japanese adults
... The internal anal sphincter provides most of the resting anal tone and is the main muscle response- ble for ...with, internal anal sphincter dysfunction in Japanese ...
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A modified surgical approach to women with obstetric anal sphincter tears by separate suturing of external and internal anal sphincter A modified approach to obstetric anal sphincter injury
... their possible biases, thus depriving our work of the strength of a controlled randomized trial. In addition, there was considerable heterogeneity in the women included in the sphincter control group, which was a ...
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THE INTERNAL ANAL SPHINCTER RESPONSE: MANOMETRIC STUDIES ON ITS NORMAL PHYSIOLOGY, NEURAL PATHWAYS, AND ALTERATION IN BOWEL DISORDERS
... The initial spike deflection Figure 3, C that sometimes precedes the pressure drop in the caudad recording balloon is not caused by reflex contraction of the external anal sphincter, whi[r] ...
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Role of alpha adrenoceptors in opossum internal anal sphincter
... The effects of the alpha-i adrenoceptor agonist phenylephrine and alpha-2 adrenoceptor agonist clonidine and their corresponding selective antagonists, prazosin and yohimbine, respective[r] ...
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Role of vasoactive intestinal polypeptide in the internal anal sphincter relaxation of the opossum
... In our experiments, VIP antagonists in doses that produced significant antagonism of fall in IASP by VIP caused significant impairment in IAS relaxation in response to rectal balloon dis[r] ...
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Impact of Selective vs Routine Midline Episiotomy and Lacerations of the Anal Sphincter
... This cross-sectional and retrospective observational study was performed at the Hospital de Clínicas, Porto Alegre, Rio Grande do Sul, Brazil. The Hospital de Clínicas (HCPA) is a tertiary and university hospital, which ...
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Effectiveness of 0.2 percent glyceryl trinitrate ointment for pain reduction after open Hemorrhoidectomy
... involuntary internal anal sphincter and the voluntary external ...maintained anal spasm remains the sole function of the internal anal sphincter (Parks ...
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EFFICACY OF KSHARSUTRA IN THE MANAGEMENT OF CHRONIC FISSURE IN ANO
... The ksharsutra was then seen to be piercing the left lateral aspect of the fissure including internal anal sphincter. The needle was advanced and came out of wound and it was then redirected from ...
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LATERAL SPHINCTEROTOMY UP TO THE FISSURE APEX VERSUS TO LESS-THAN 1CM FROM ANAL VERGE IN CHRONIC ANAL-FISSURE IN FEMALES
... lateral internal anal sphincterotomy in males, division of the internal anal sphincter in most females tends to be more extensive than ...shorter anal canal. In some females, ...
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Influence of rectal prolapse on the asymmetry of the anal sphincter in patients with anal incontinence
... large anal sphincter defect on ultrasonography ...increased anal asymmetry index without anal sphincter defect is not a rare occurrence in our ...increase anal asymmetry index, ...
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An anatomic anal sphincter saving procedure for rectal cancers located at anorectal junction
... of internal anal sphincter (IAS) and then moved to the right ischioanal fossa to include the deep part of ipsilateral external anal sphincter (EAS) in the ...at internal ...
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Pruitus ani
... Faecal soilage may be a result of poor hygiene, anatomic abnormalities which make removal of faecal material difficult (eg. haemorrhoids, fissures, skin tags) or a primary abnormality of internal anal ...
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Botulinum toxin injection versus lateral internal sphincterotomy in the treatment of chronic anal fissure: a non-randomized controlled trial
... Consecutive adults with symptomatic CAF were enrolled into the study. The diagnosis of CAF was based on the fol- lowing criteria: evidence of posterior circumscribed ulcer, with a large sentinel tag of skin, induration ...
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... of internal anal sphincter. Repair of the external anal sphincter was performed using techniques determined based on computer randomization, including the overlapping technique and ...
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Electrophysiological aspects of human sphincter function
... human internal anal sphincter and two current concepts of sphincter function, simultaneous manometric and electrical recordings were made from circular smooth muscle of the internal ...
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The social, psychological, emotional morbidity and adjustment techniques for women with anal incontinence following Obstetric Anal Sphincter Injury: use of a word picture to identify a hidden syndrome
... If these injuries are accurately identified and compe- tently repaired at birth, the outcome is generally good, many have no bowel symptoms at all in the short term unless the internal anal sphincter ...
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3D high-resolution anorectal manometry in patients with perianal fistulas: comparison with 3D-anal ultrasound
... 1/3 sphincter length)), or complex (high (> 1/3 sphincter length) or branched), and also the tract course was ...the internal anal sphincter (IAS) was defined as a hypere- chogenic ...
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Obstetric Anal Sphincter Injuries (OASIS): A Prospective Observational Longitudinal study
... In their study, Univariate analysis revealed that forceps delivery (OR 4.03), vacuum extraction (OR 2.64), gestation > 40 weeks (OR 3.18), and mediolateral episiotomy (OR 5.0) were associated with sphinter injuries. ...
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An SMA Artificial Anal Sphincter Actuated by Transcutaneous Energy Transmission Systems
... Most of SMA materials recover applied strains only on heating, i.e. have the one-way shape memory effect. To per- form the mechanical cycles in the uses as actuators, bias springs are usually needed. A special class of ...
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