Results 81 to 90 of about 104,774 (313)

Basal internal anal sphincter tone, inhibitory neurotransmission, and other factors contributing to the maintenance of high pressures in the anal canal [PDF]

open access: yes, 2011
Maintenance of the basal tone in the internal anal sphincter (IAS) is critical for rectoanal continence. Effective evacuation requires a fully functional rectoanal inhibitory reflex (RAIR)-mediated relaxation of the IAS via inhibitory neurotransmission (
Rattan, S., Singh, J.
core   +1 more source

The effects of childbirth on the pelvic-floor [PDF]

open access: yes, 2000
Basically, vaginal delivery is associated with the risk of pelvic floor damage. The pelvic floor sequelae of childbirth includes anal incontinence, urinary incontinence and pelvic organ prolapse.
Allen RE   +24 more
core   +1 more source

Anorectal gastric heterotopia as a rare cause of constipation: Case report and review of pediatric literature

open access: yesJPGN Reports, EarlyView.
Abstract Gastric heterotropia (GHT) may present from the oropharynx to the anus and is commonly associated with Meckel's diverticula. Here, we describe a rare case of anorectal GHT localized to the distal anal canal. A 14‐month‐old male patient presented for evaluation of rectal bleeding, severe constipation, and abdominal distention with poor response
Kathryn M. Stephenson   +3 more
wiley   +1 more source

Current Application Status and Innovative Development of Surgical Robot

open access: yesMed Research, EarlyView.
Advantage, Challenge and Innovation of surgical robots. ABSTRACT Surgery has undergone a revolutionary development since the innovations in anesthesiology, aseptic techniques, and antibiotics. The use of modern techniques, especially minimally invasive techniques, has led to a new era of microsurgery and reduced patient trauma.
Aimin Jiang   +11 more
wiley   +1 more source

Premalignant Lesions of the Anal Canal and Squamous Cell Carcinoma of the Anal Canal [PDF]

open access: yesClinics in Colon and Rectal Surgery, 2011
Squamous cell carcinoma of the anus (SCCA) is a rare tumor. However, its incidence has been increasing in men and women over the past 25 years worldwide. Risk factors associated with this cancer are those behaviors that predispose individuals to human papillomavirus (HPV) infection and immunosuppression.
openaire   +3 more sources

Yield of Whole Genome Sequencing for Pathogenic Single Nucleotide Variants in Congenital Heart Disease: A Systematic Review and Meta‐Analysis

open access: yesPrenatal Diagnosis, EarlyView.
ABSTRACT Objective This systematic review and meta‐analysis aimed to assess the diagnostic yield of pathogenic or likely pathogenic (P/LP) single nucleotide variants (SNVs) using whole genome sequencing (WGS) in congenital heart disease (CHD). Methods A systematic search of three databases (2000–2024) was conducted, and two reviewers independently ...
Hiba J. Mustafa   +7 more
wiley   +1 more source

Structure of the anal canal and distal rectum in Wistar rats

open access: yesActa Biomedica Scientifica, 2016
The conducted research relates to the structure of anal canal and distal rectum of Wistar rats. This structure is of interest in terms of comparative anatomy and as an object of experimental model in pathology.
O. A. Goldberg, A. D. Kim
doaj   +1 more source

A persistent hymen resulting in an open cervix but closed pyometra and pyocolpos in a mixed‐breed female domestic dog

open access: yesVeterinary Record Case Reports, EarlyView.
Abstract A rescued mixed‐breed (Africanis type), entire, female dog, approximately 2 years old, with an unknown history, presented with a prominent perineal swelling between the anus and vulva. Ultrasound identified it as a fluid‐filled structure, and an aspirate revealed an exudate consisting of degenerate neutrophils, bacterial cocci and rods.
Taylor June Kruger   +4 more
wiley   +1 more source

The association between body mass index and anal canal human papillomavirus prevalence and persistence: the HIM study

open access: yesHuman Vaccines & Immunotherapeutics, 2019
Background: While receptive anal sex is an established risk factor for anal human papillomavirus (HPV) infection and squamous cell carcinoma of the anus (SCCA), people with anal HPV infection and SCCA commonly report no lifetime receptive anal sex ...
Alan G. Nyitray   +10 more
doaj   +1 more source

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