Recent Observations on the Anatomy of the Anal Canal

Walls, E. W.

doi:10.1177/00359157590520s142

Cited by 17 publications

(9 citation statements)

References 14 publications

(6 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…20,21 Moreover, the boundaries of the epithelia in the anal canal can vary in all its circumference, and the transitional area whose longitude is also variable is not always clearly seen during surgery. 20,22,23 These facts can explain the inclusion of SE, especially when there is a trend to place the pursestring suture in close proximity to the dentate line. Other authors have reported the inclusion of SE in 12 and 46 percent of cases.…”

Section: Discussionmentioning

confidence: 99%

Prospective Study of Factors Affecting Postoperative Pain and Symptom Persistence After Stapled Rectal Mucosectomy for Hemorrhoids

Correa-Rovelo

Tellez

Obregón

et al. 2003

Diseases of the Colon &Amp; Rectum

View full text Add to dashboard Cite

PURPOSE The purpose of the study was to determine the variables associated with postoperative pain and the clinical response of patients with uncomplicated hemorrhoidal disease treated with stapled rectal mucosectomy in the medium term. METHODS Patients with Grade II to IV, uncomplicated hemorrhoidal disease who underwent stapled rectal mucosectomy were prospectively included. The basal characteristics of the population were evaluated and level of stapling and placement of hemostatic suture determined. Histologically, the type of resected epithelium and presence of muscle fibers was evaluated. Postoperative pain was evaluated by means of a visual analog scale. Complications and clinical response were evaluated. RESULTS One hundred patients with a mean age of 43.9 years were included. Only columnar epithelium was resected in 48, transitional epithelium in 47, and squamous epithelium in 5 patients. Smooth muscle fragments were found in 55 patients, and, in 12 of these, fibers from the external muscular layer of rectum were also seen. Follow-up was 12.6 +/- 3.4 (range, 7-24) months. A total of 79 patients were completely asymptomatic at the end of follow-up. Resected squamous epithelium was associated with a higher postoperative pain level in the multivariate analysis (coefficient beta = 1.16 (95 percent confidence interval, 0.08-2.24); P = 0.035). CONCLUSIONS Rectal mucosectomy with stapler is an effective method for the treatment of uncomplicated prolapsing hemorrhoidal disease. Intensity of postoperative pain was associated with the type of resected epithelium. This suggests that low transection of hemorrhoids must be avoided.

show abstract

Section: Discussionmentioning

confidence: 99%

Prospective Study of Factors Affecting Postoperative Pain and Symptom Persistence After Stapled Rectal Mucosectomy for Hemorrhoids

Correa-Rovelo

Tellez

Obregón

et al. 2003

Diseases of the Colon &Amp; Rectum

View full text Add to dashboard Cite

show abstract

“…Therefore stool entering into the rectum probably do not cause rectal sensation by its temperature. It is likely that the rectal distension produced by stool gives rectal awareness of arrival of material in the rectum [10,14,15,16,17,18,19], possibly by stimulation of mechanoreceptors rather than by thermal sensation. Anal sensation seems to contribute to the discrimination of the nature of the material [5,6,7,8,9].…”

Section: Rectal Temperature Receptorsmentioning

confidence: 99%

“…The pelvic and hypogastric nerves probably transmit information from the rectal mechanoreceptors [10,11,12,13]. The receptors responsible for rectal fullness probably do not reside in the rectum [14,15,16,17,18,19]. Patients with rectal cancer treated by rectal amputation and coloanal anastomosis preserve a normal sensation of rectal filling.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Study of the effect of temperature on the rectal function with evidence of thermorectal reflex

Shafik

2001

Int J Colorectal Dis

View full text Add to dashboard Cite

Warm saline appears to cause rectal relaxation and cold saline rectal contraction. Subjects did not perceive sensation of warmth in the rectum but felt cold sensation, which may indicate the presence of cold receptors in the rectal wall. The rectal response to temperature variations is suggested to be reflex in nature as evidenced by its absence on rectal anesthetization. Such reflex, designated "thermorectal reflex," is proposed to mediate the rectal response and is speculated to have clinical significance in rectal dysfunctional and neurogenic disorders.

show abstract

“…3,6,7 Several groups have reported the effect of age on the rectal filling sensation. [8][9][10][11][12][13] Receptors for this filling sensation have been postulated to arise from nerve endings and receptors in the pelvic floor or adjacent structures, 1,[14][15][16] in the external anal sphincter, 17 and in the submucosa of the proximal anal canal or its surrounding structures. 7,18,19 In addition to anorectal manometry, anorectal electrosensitivity testing has been developed to investigate anorectal function further.…”

mentioning

confidence: 99%

Relation Between Anal Electrosensitivity and Rectal Filling Sensation and the Influence of Age

Broens

Penninckx

2005

Diseases of the Colon &Amp; Rectum

View full text Add to dashboard Cite

The zones of high anal electrosensitivity and high pressure seem to coincide. The fact that both are shorter in females did not influence the parameters of the rectal filling sensation. Lower rectal volumes but comparable rectal pressures were needed to induce the rectal filling sensation in the older age group. Rectal sensation did not correlate with anal electrosensitivity, probably because the receptors are not stimulated by the type of anal stimulation used or because different receptors are involved. Hence, the rectal filling sensation test cannot be replaced by the simpler anal electrosensitivity test.

show abstract

Recent Observations on the Anatomy of the Anal Canal

Cited by 17 publications

References 14 publications

Prospective Study of Factors Affecting Postoperative Pain and Symptom Persistence After Stapled Rectal Mucosectomy for Hemorrhoids

Prospective Study of Factors Affecting Postoperative Pain and Symptom Persistence After Stapled Rectal Mucosectomy for Hemorrhoids

Study of the effect of temperature on the rectal function with evidence of thermorectal reflex

Relation Between Anal Electrosensitivity and Rectal Filling Sensation and the Influence of Age

Contact Info

Product

Resources

About