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{{Infobox medical condition (new)
{{Infobox medical condition (new)
| name = Enterocele
| name = Enterocele
| synonyms = Enterocoele, posterior direct vaginal hernia,<ref name="Takahashi2006" /> posterior peritoneal vaginal hernia,<ref name="Takahashi2006" /> hernia of the cul-de-sac of Douglas.<ref name="Takahashi2006">{{cite journal |last1=Takahashi |first1=T |last2=Yamana |first2=T |last3=Sahara |first3=R |last4=Iwadare |first4=J |title=Enterocele: what is the clinical implication? |journal=Diseases of the Colon and Rectum |date=October 2006 |volume=49 |issue=10 Suppl |pages=S75-81 |doi=10.1007/s10350-006-0683-2 |pmid=17106819}}</ref>
| synonyms = Enterocoele
| image =
| image =
| alt =
| alt =
| caption =
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| field = [[Gynecology]]
| field = [[Gynecology]], [[Colorectal surgery]]
| symptoms =
| symptoms =
| complications =
| complications =
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| deaths =
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An '''enterocele''' is a [[hernia|herniation]] of a [[peritoneum]]-lined sac containing [[small intestine]] through the [[pelvic floor]], between the rectum and the vagina (in females).<ref name="Okada2020" /><ref name="Bordeianou2018" >{{cite journal | vauthors = Bordeianou LG, Carmichael JC, Paquette IM, Wexner S, Hull TL, Bernstein M, Keller DS, Zutshi M, Varma MG, Gurland BH, Steele SR | display-authors = 6 | title = Consensus Statement of Definitions for Anorectal Physiology Testing and Pelvic Floor Terminology (Revised) | journal = Diseases of the Colon and Rectum | volume = 61 | issue = 4 | pages = 421–427 | date = April 2018 | pmid = 29521821 | doi = 10.1097/DCR.0000000000001070 | url = https://escholarship.org/content/qt1vk0x2nm/qt1vk0x2nm.pdf }}</ref><ref name="Takahashi2006" /> Enterocele is significantly more common in females,<ref name="Felt-Bersma2008" /> especially after [[hysterectomy]].<ref name="Ratto2016" />
An '''enterocele''' is a protrusion of the [[small intestines]] and [[peritoneum]] into the [[vagina]]l canal.<ref>[http://www.merckmanuals.com/professional/sec18/ch250/ch250b.html Merck Manuals > Cystoceles, Urethroceles, Enteroceles, and Rectoceles] Last full review/revision December 2008 by S. Gene McNeeley</ref>
It may be treated transvaginally<ref>[http://www.atlasofpelvicsurgery.com/2VaginalandUrethra/4VaginalRepairofEnterocele/chap2sec4.html Vaginal Repair of Enterocele] {{Webarchive|url=https://web.archive.org/web/20180423225435/http://www.atlasofpelvicsurgery.com/2VaginalandUrethra/4VaginalRepairofEnterocele/chap2sec4.html |date=2018-04-23 }} By Clifford R. Wheeless, Jr., M.D. and Marcella L. Roenneburg, M.D. Retrieved Dec 2010</ref> or by [[laparoscopy]].


It has been suggested that the terms enterocele and [[sigmoidocele]] are inaccurate, since hernias are usually named according to location and not according to contents.<ref name="Wexner2016" /> However, the terms are in widespread use.<ref name="Wexner2016" >{{cite book |editor1-last=Wexner |editor1-first=SD |editor2-last=Stollman |editor2-first=N |title=Diseases of the Colon |date=2016 |publisher=CRC Press |isbn=9780429163791 |pages=124,125 |language=en}}</ref> As such, enterocele, [[peritoneocele]], sigmoidocele, and [[omentocele]] could be considered as types of [[cul-de-sac hernia]].<ref name="Azadi2022">{{cite book |last1=Azadi |first1=A |last2=Cornella |first2=JL |last3=Dwyer |first3=PL |last4=Lane |first4=FL |title=Ostergard's Textbook of Urogynecology: Female Pelvic Medicine & Reconstructive Surgery |date=1 September 2022 |publisher=Lippincott Williams & Wilkins |isbn=978-1-9751-6235-1 |pages=212,213 |language=en}}</ref><ref name="Bordeianou2018" />
An enterocele may also obstruct the rectum, leading to symptoms of [[obstructed defecation]].<ref name="Coloproctology">{{Cite book |title=Coloproctology |publisher=Springer |year=2010 |isbn=978-1-84882-755-4 |editor-last=Zbar |editor-first=Andrew P. |series=Springer Specialist Surgery Series |location=Dordrecht Heidelberg}}</ref> Enteroceles can form after treatment for gynecological cancers.<ref>{{Cite journal|last=Ramaseshan|first=Aparna S.|last2=Felton|first2=Jessica|last3=Roque|first3=Dana|last4=Rao|first4=Gautam|last5=Shipper|first5=Andrea G.|last6=Sanses|first6=Tatiana V. D.|date=2017-09-19|title=Pelvic floor disorders in women with gynecologic malignancies: a systematic review|journal=International Urogynecology Journal|volume=29|issue=4|language=en|pages=459–476|doi=10.1007/s00192-017-3467-4|pmid=28929201|issn=0937-3462|pmc=7329191}}</ref>

==Classification==
* Posterior enterocele (develops in the rectovaginal space, also termed the pouch of Douglas or the cul-de-sac).<ref name="Okada2020" />
* Anterior enterocele (develops in the vesicovaginal space).<ref name="Okada2020" />
** Retains the full thickness of the anterior vaginal wall.<ref name="Okada2020" />
** Lacks vaginal wall (or very thin and ulcerated vaginal wall).<ref name="Okada2020" />

Anterior enterocele is rare.<ref name="Okada2020" /> It may occur after cystectomy or hysterectomy.<ref name="Okada2020" /> In these cases, the anterior wall of the vagina is weakened or missing due to loss of support from the bladder.<ref name="Okada2020">{{cite journal |last1=Okada |first1=Y |last2=Matsubara |first2=E |last3=Nomura |first3=Y |last4=Nemoto |first4=T |last5=Nagatsuka |first5=M |last6=Yoshimura |first6=Y |title=Anterior enterocele immediately after cystectomy: A case report. |journal=The Journal of Obstetrics and Gynaecology Research |date=November 2020 |volume=46 |issue=11 |pages=2446–2449 |doi=10.1111/jog.14437 |pmid=32820567}}</ref>

On defecography, enterocele is defined as the presence of small bowel between the rectum and the vagina.<ref name="Bordeianou2018" /> The hernia must reach lower than the upper third of the vagina when the patient is attempting to defecate.<ref name="Bordeianou2018" />

The severity of enterocele can be described with reference to lines drawn on defecography:
* First-degree enterocele: above the pubococcygeal line.<ref name="Bordeianou2018" /><ref group=note>The "pubococcygeal line" (PCL) is a reference line which may be drawn on defecography. It extends from the inferior (lower) border of the [[pubic symphysis]] to the last [[Coccyx|coccygeal joint]]. See Bordeianou ''et al.'' 2018.</ref>
* Second-degree enterocele: below the pubococcygeal line but above the ischiococcygeal line.<ref name="Bordeianou2018" /><ref group=note>The "ischiococcygeal line" is a reference line which may be drawn on defecography. It extends from the inferior (lower) border of the [[ischium]] to the last coccygeal joint. See Bordeianou ''et al.'' 2018.</ref>
* Third-degree enterocele: below the ischiococcygeal line.<ref name="Bordeianou2018" />

Another way of classifying the severity of an enterocele (or peritoneocele, omentocele, sigmoidoceles) is according to the distance between the pubococcygeal line and the most inferior (lowest) point of the hernia:
* Small (<3 cm).<ref name="Bordeianou2018" />
* Moderate (3–6 cm).<ref name="Bordeianou2018" />
* Large (>6 cm).<ref name="Bordeianou2018" />

Enteroceles may be obstructive or nonobstructive:
* Type A: does not reach / does not compress rectal ampulla during rectal emptying and returns to the previous position after the straining ends.<ref name="Ratto2016" />
* Type B: compresses the rectal ampulla at the end of evacuation.<ref name="Ratto2016" />
* Type C (obstructive): compresses the rectal ampulla at beginning of evacuation, and presents obstruction to expulsion of barium contrast.<ref name="Ratto2016" />

==Signs and symptoms==

Often enterocele appears in combination with other detectable defects of the pelvic floor. Therefore it is difficult to state what symptoms are specific to enterocele,<ref name="Takahashi2006" /> which may not cause any symptoms at all.<ref name="Steele2020">{{cite book | vauthors = Steele SR, Maykel JA, Wexner SD |title=Clinical Decision Making in Colorectal Surgery |date=11 August 2020 |publisher=Springer International Publishing |location=Cham |isbn=978-3-319-65941-1 |edition=2nd |language=en |page=23 }}</ref> Possible symptoms include:

* [[Obstructed defecation]]<ref name="Coloproctology">{{Cite book |title=Coloproctology |publisher=Springer |year=2010 |isbn=978-1-84882-755-4 |editor-last=Zbar |editor-first=Andrew P. |series=Springer Specialist Surgery Series |location=Dordrecht Heidelberg}}</ref><ref name="Takahashi2006" /> and incomplete evacuation of rectal contents.<ref name="Tsunoda2022" /> However, other researchers report that enterocele does not affect evacuation.<ref name="Takahashi2006" /> Some have suggested that enterocele may act as a compensatory mechanism which increases rectal pressure and help with evacuation in the presence of excessive perineal descent.<ref name="Brown2012">{{cite book |editor1-last=Brown |editor1-first=SR |editor2-last=Hartley |editor2-first=JE |editor3-last=Hill |editor3-first=J |editor4-last=Scott |editor4-first=N |editor5-last=Williams |editor5-first=G |title=Contemporary Coloproctology |date=2012 |publisher=Springer |location=London Heidelberg |isbn=978-1-4471-5856-1 |pages=391,413 |language=en}}</ref>
* Sensation of pelvic heaviness.<ref name="Takahashi2006" />
* Sensation of "bearing-down", especially when standing.<ref name="Takahashi2006" />
* Pelvic pain (possibly related to stretching of the mesentery of the contents of hernia because of gravity). The pain may get worse as the day goes on, and gets better by lying down.<ref name="Takahashi2006" />
* Sensation of urge to defecate, even when rectum is empty (possbily related to the hernia pressing on the rectum).<ref name="Tsunoda2022" />

==Diagnosis==
It may be possible to detect an enterocele during physical examination.<ref name="Takahashi2006" /> However, enteroceles are difficult to detect by physical examination alone.<ref name="Felt-Bersma2008" /> An enterocele may also be distinguishable from a high rectocele using the following palpation technique. The doctor places his index finger in the rectum, and the thumb (or index finger of the other hand) in the vagina, while the patient is standing and / or straining.<ref name="Takahashi2006" /><ref name="Felt-Bersma2008" /> If an enterocele is present, the hernia sac will come down into the rectovaginal space, between the rectum and the vagina, when the patient strains.<ref name="Takahashi2006" />

Imagining is usually needed to accurately detect an enterocele since physical examination is unreliable.<ref name="Takahashi2006" /> Standard [[defecography]] does not show the small intestine or the peritoneal lining of the hernia sac of an enterocele, therefore it is not useful to detect an enterocele.<ref name="Takahashi2006" /> Oral contrast is usually given in order to opacify the small intestine.<ref name="Felt-Bersma2008" /> Opacification of the vagina on defecography suggests that the vagina has been displaced. Upwards displacement may represent an enterocele.<ref name="Felt-Bersma2008" /> On defecography enterocele is more evident after defecation, once the rectum / bladder are empty and more space becomes available in the pelvic cavity.<ref name="Ratto2016" />

Simultaneous [[dynamic proctography]] and [[peritoneography]] (injection of [[Radiocontrast agent|contrast]] into peritoneum) is effective at detection of enteroceles. However, it is difficult to inject contrast agent into the peritoneal cavity and there is a risk of contamination of the peritoneum.<ref name="Takahashi2006" /> Dynamic pelvic magnetic resonance imaging is accurate and can detect enterocele, but it is not widely available.<ref name="Takahashi2006" /> Dynamic [[transperineal ultrasound]] has also been used to detect enterocele.<ref name="Steele2021">{{cite book | vauthors = Steele SR, Hull TL, Hyman N, Maykel JA, Read TE, Whitlow CB |title=The ASCRS Textbook of Colon and Rectal Surgery |date=20 November 2021 |publisher=Springer Nature |location=Cham, Switzerland |isbn=978-3-030-66049-9 |edition=4th |language=en |pages=990,991,1014 }}</ref>

==Causes==
Several factors are thought to be involved in the development of enterocele, such as age,<ref name="Tsunoda2022">{{cite journal |last1=Tsunoda |first1=A |last2=Takahashi |first2=T |last3=Kusanagi |first3=H |title=Reappraising the Role of Enterocele in the Obstructed Defecation Syndrome: Is Radiological Impaired Rectal Emptying Significant in Enterocele? |journal=Journal of the Anus, Rectum and Colon |date=2022 |volume=6 |issue=2 |pages=113–120 |doi=10.23922/jarc.2021-064 |pmid=35572488|pmc=9045857 }}</ref> multiple pregnancies,<ref name="Tsunoda2022" /> previous pelvic surgery,<ref name="Felt-Bersma2008" /> excessive pelvic floor descent,<ref name="Tsunoda2022" /> weakened pelvic floor,<ref name="Marzouk2022" /> long term chronic straining,<ref name="Marzouk2022">{{cite web| vauthors = Marzouk, D |title=Obstructed Defaecation Web|url=http://www.obstructed-defaecation.com/Welcome.html}}</ref> Enteroceles can form after treatment for gynecological cancers.<ref>{{Cite journal|last1=Ramaseshan|first1=Aparna S.|last2=Felton|first2=Jessica|last3=Roque|first3=Dana|last4=Rao|first4=Gautam|last5=Shipper|first5=Andrea G.|last6=Sanses|first6=Tatiana V. D.|date=2017-09-19|title=Pelvic floor disorders in women with gynecologic malignancies: a systematic review|journal=International Urogynecology Journal|volume=29|issue=4|language=en|pages=459–476|doi=10.1007/s00192-017-3467-4|pmid=28929201|issn=0937-3462|pmc=7329191}}</ref> Hysterectomy or urethropexy increase the rectovaginal space and reduce support from adjacent organs.<ref name="Ratto2016" /> This is thought to promote the development of an enterocele.<ref name="Ratto2016" />

Different pelvic floor defects may co-exist with enterocele. About 40% of patients with rectal prolapse or rectal intussusception also have enterocele.<ref name="Felt-Bersma2008">{{cite journal |last1=Felt-Bersma |first1=RJ |last2=Tiersma |first2=ES |last3=Cuesta |first3=MA |title=Rectal prolapse, rectal intussusception, rectocele, solitary rectal ulcer syndrome, and enterocele. |journal=Gastroenterology Clinics of North America |date=September 2008 |volume=37 |issue=3 |pages=645-68, ix |doi=10.1016/j.gtc.2008.06.001 |pmid=18794001}}</ref> In some cases an enterocele may prolapse externally along with an external rectal prolapse.<ref name="Brown2012" /> It is not clear in such situations if the enterocele caused or aggravated the rectal prolapse, or if the pouch of Douglas is merely pulled down by the rectal prolapse. It is thought that enterocele may initiate or aggravate a rectal intussusception (internal rectal prolapse). The hernia may descend into and impinge upon the rectal wall.<ref name="Ratto2016">{{cite book | vauthors = Ratto C, Parrello A, Dionisi L, Litta F |title=Coloproctology: Colon, Rectum and Anus: Anatomic, Physiologic and Diagnostic Bases for Disease Management |date=2014 |publisher=Springer International Publishing |location=Cham, Switzerland |isbn=978-3-319-10154-5 |language=en |pages=226,228,229}}</ref> Enterocele or sigmoidocele may be associated with [[descending perineum syndrome]].<ref name="Brown2012" />

The enterocele can remain confined in the space between the rectum and the vagina.<ref name="Ratto2016" /> An enterocele may co-exist with a rectocele.<ref name="Ratto2016" /> During defecation, the enterocele may occupy a posterior colpocele before the rectocele or after it empties.<ref name="Ratto2016" /> An enterocele may also co-exist with a [[cystocele]].<ref name="Ratto2016" /> In such cases, the enterocele will be visible only after emptying of the cystocele.<ref name="Ratto2016" />

==Treatment==

It has been recommended that initial treatment should be conservative or medical (non-surgical).<ref name="Takahashi2006" /> Surgical treatment may be considered if the hernia is substantial and is suspected to be the cause of obstructed defecation.<ref name="Steele2021" />

Surgical options usually involve obliteration of the deep pouch of Douglas.<ref name="Takahashi2006" /> Surgical approach may be vaginal or transanal. According to a Cochrane review, the vaginal approach has a lower rate of recurrence of enterocele compared to transanal approach.<ref name="Mowat2018">{{cite journal |last1=Mowat |first1=A |last2=Maher |first2=D |last3=Baessler |first3=K |last4=Christmann-Schmid |first4=C |last5=Haya |first5=N |last6=Maher |first6=C |title=Surgery for women with posterior compartment prolapse. |journal=The Cochrane Database of Systematic Reviews |date=5 March 2018 |volume=2018 |issue=3 |pages=CD012975 |doi=10.1002/14651858.CD012975 |pmid=29502352|pmc=6494287 }}</ref> Posterior [[colporrhaphy]] is one surgical option for enterocele.<ref name="Felt-Bersma2008" /> Surgical repair of enterocele may not improve constipation.<ref name="Tsunoda2022" />
Laparoscopic [[ventral mesh rectopexy]] has successfully been used to treat enterocele.<ref name="Brown2012" /><ref name="Ris2017">{{cite journal |last1=Ris |first1=F |last2=Gorissen |first2=KJ |last3=Ragg |first3=J |last4=Gosselink |first4=MP |last5=Buchs |first5=NC |last6=Hompes |first6=R |last7=Cunningham |first7=C |last8=Jones |first8=O |last9=Slater |first9=A |last10=Lindsey |first10=I |title=Rectal axis and enterocele on proctogram may predict laparoscopic ventral mesh rectopexy outcomes for rectal intussusception. |journal=Techniques in Coloproctology |date=August 2017 |volume=21 |issue=8 |pages=627–632 |doi=10.1007/s10151-017-1643-7 |pmid=28674947}}</ref> This may be a combined procedure (sacrocolpopexy),<ref name="Steele2021" /> if there is also prolapse of the middle compartment.

==Epidemiology==
The frequency in the general population is unknown.<ref name="Felt-Bersma2008" /> Enterocele is significantly more common in females compared to males.<ref name="Felt-Bersma2008" /> In a review of 912 patients who underwent defecography because of defecatory or other pelvic symptoms, 104 patients (11%) had detectable enterocele. 18 of those were male.<ref name="Takahashi2006" /> According to one report, enterocele develops after hysterectomy in 64% of cases, and after [[cistopexy]] in 27% of cases.<ref name="Ratto2016" />


==See also==
==See also==

* [[Dolichodouglas]]
==Notes==
{{Anatomy-terms}}
{{reflist|group=note}}


==References==
==References==
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{{Female diseases of the pelvis and genitals |state = collapsed}}
[[Category:Noninflammatory disorders of female genital tract]]
[[Category:Noninflammatory disorders of female genital tract]]
[[Category:Women's health]]
[[Category:Women's health]]

Latest revision as of 23:32, 24 October 2024

Enterocele
Other namesEnterocoele, posterior direct vaginal hernia,[1] posterior peritoneal vaginal hernia,[1] hernia of the cul-de-sac of Douglas.[1]
SpecialtyGynecology, Colorectal surgery

An enterocele is a herniation of a peritoneum-lined sac containing small intestine through the pelvic floor, between the rectum and the vagina (in females).[2][3][1] Enterocele is significantly more common in females,[4] especially after hysterectomy.[5]

It has been suggested that the terms enterocele and sigmoidocele are inaccurate, since hernias are usually named according to location and not according to contents.[6] However, the terms are in widespread use.[6] As such, enterocele, peritoneocele, sigmoidocele, and omentocele could be considered as types of cul-de-sac hernia.[7][3]

Classification

[edit]
  • Posterior enterocele (develops in the rectovaginal space, also termed the pouch of Douglas or the cul-de-sac).[2]
  • Anterior enterocele (develops in the vesicovaginal space).[2]
    • Retains the full thickness of the anterior vaginal wall.[2]
    • Lacks vaginal wall (or very thin and ulcerated vaginal wall).[2]

Anterior enterocele is rare.[2] It may occur after cystectomy or hysterectomy.[2] In these cases, the anterior wall of the vagina is weakened or missing due to loss of support from the bladder.[2]

On defecography, enterocele is defined as the presence of small bowel between the rectum and the vagina.[3] The hernia must reach lower than the upper third of the vagina when the patient is attempting to defecate.[3]

The severity of enterocele can be described with reference to lines drawn on defecography:

  • First-degree enterocele: above the pubococcygeal line.[3][note 1]
  • Second-degree enterocele: below the pubococcygeal line but above the ischiococcygeal line.[3][note 2]
  • Third-degree enterocele: below the ischiococcygeal line.[3]

Another way of classifying the severity of an enterocele (or peritoneocele, omentocele, sigmoidoceles) is according to the distance between the pubococcygeal line and the most inferior (lowest) point of the hernia:

  • Small (<3 cm).[3]
  • Moderate (3–6 cm).[3]
  • Large (>6 cm).[3]

Enteroceles may be obstructive or nonobstructive:

  • Type A: does not reach / does not compress rectal ampulla during rectal emptying and returns to the previous position after the straining ends.[5]
  • Type B: compresses the rectal ampulla at the end of evacuation.[5]
  • Type C (obstructive): compresses the rectal ampulla at beginning of evacuation, and presents obstruction to expulsion of barium contrast.[5]

Signs and symptoms

[edit]

Often enterocele appears in combination with other detectable defects of the pelvic floor. Therefore it is difficult to state what symptoms are specific to enterocele,[1] which may not cause any symptoms at all.[8] Possible symptoms include:

  • Obstructed defecation[9][1] and incomplete evacuation of rectal contents.[10] However, other researchers report that enterocele does not affect evacuation.[1] Some have suggested that enterocele may act as a compensatory mechanism which increases rectal pressure and help with evacuation in the presence of excessive perineal descent.[11]
  • Sensation of pelvic heaviness.[1]
  • Sensation of "bearing-down", especially when standing.[1]
  • Pelvic pain (possibly related to stretching of the mesentery of the contents of hernia because of gravity). The pain may get worse as the day goes on, and gets better by lying down.[1]
  • Sensation of urge to defecate, even when rectum is empty (possbily related to the hernia pressing on the rectum).[10]

Diagnosis

[edit]

It may be possible to detect an enterocele during physical examination.[1] However, enteroceles are difficult to detect by physical examination alone.[4] An enterocele may also be distinguishable from a high rectocele using the following palpation technique. The doctor places his index finger in the rectum, and the thumb (or index finger of the other hand) in the vagina, while the patient is standing and / or straining.[1][4] If an enterocele is present, the hernia sac will come down into the rectovaginal space, between the rectum and the vagina, when the patient strains.[1]

Imagining is usually needed to accurately detect an enterocele since physical examination is unreliable.[1] Standard defecography does not show the small intestine or the peritoneal lining of the hernia sac of an enterocele, therefore it is not useful to detect an enterocele.[1] Oral contrast is usually given in order to opacify the small intestine.[4] Opacification of the vagina on defecography suggests that the vagina has been displaced. Upwards displacement may represent an enterocele.[4] On defecography enterocele is more evident after defecation, once the rectum / bladder are empty and more space becomes available in the pelvic cavity.[5]

Simultaneous dynamic proctography and peritoneography (injection of contrast into peritoneum) is effective at detection of enteroceles. However, it is difficult to inject contrast agent into the peritoneal cavity and there is a risk of contamination of the peritoneum.[1] Dynamic pelvic magnetic resonance imaging is accurate and can detect enterocele, but it is not widely available.[1] Dynamic transperineal ultrasound has also been used to detect enterocele.[12]

Causes

[edit]

Several factors are thought to be involved in the development of enterocele, such as age,[10] multiple pregnancies,[10] previous pelvic surgery,[4] excessive pelvic floor descent,[10] weakened pelvic floor,[13] long term chronic straining,[13] Enteroceles can form after treatment for gynecological cancers.[14] Hysterectomy or urethropexy increase the rectovaginal space and reduce support from adjacent organs.[5] This is thought to promote the development of an enterocele.[5]

Different pelvic floor defects may co-exist with enterocele. About 40% of patients with rectal prolapse or rectal intussusception also have enterocele.[4] In some cases an enterocele may prolapse externally along with an external rectal prolapse.[11] It is not clear in such situations if the enterocele caused or aggravated the rectal prolapse, or if the pouch of Douglas is merely pulled down by the rectal prolapse. It is thought that enterocele may initiate or aggravate a rectal intussusception (internal rectal prolapse). The hernia may descend into and impinge upon the rectal wall.[5] Enterocele or sigmoidocele may be associated with descending perineum syndrome.[11]

The enterocele can remain confined in the space between the rectum and the vagina.[5] An enterocele may co-exist with a rectocele.[5] During defecation, the enterocele may occupy a posterior colpocele before the rectocele or after it empties.[5] An enterocele may also co-exist with a cystocele.[5] In such cases, the enterocele will be visible only after emptying of the cystocele.[5]

Treatment

[edit]

It has been recommended that initial treatment should be conservative or medical (non-surgical).[1] Surgical treatment may be considered if the hernia is substantial and is suspected to be the cause of obstructed defecation.[12]

Surgical options usually involve obliteration of the deep pouch of Douglas.[1] Surgical approach may be vaginal or transanal. According to a Cochrane review, the vaginal approach has a lower rate of recurrence of enterocele compared to transanal approach.[15] Posterior colporrhaphy is one surgical option for enterocele.[4] Surgical repair of enterocele may not improve constipation.[10] Laparoscopic ventral mesh rectopexy has successfully been used to treat enterocele.[11][16] This may be a combined procedure (sacrocolpopexy),[12] if there is also prolapse of the middle compartment.

Epidemiology

[edit]

The frequency in the general population is unknown.[4] Enterocele is significantly more common in females compared to males.[4] In a review of 912 patients who underwent defecography because of defecatory or other pelvic symptoms, 104 patients (11%) had detectable enterocele. 18 of those were male.[1] According to one report, enterocele develops after hysterectomy in 64% of cases, and after cistopexy in 27% of cases.[5]

See also

[edit]

Notes

[edit]
  1. ^ The "pubococcygeal line" (PCL) is a reference line which may be drawn on defecography. It extends from the inferior (lower) border of the pubic symphysis to the last coccygeal joint. See Bordeianou et al. 2018.
  2. ^ The "ischiococcygeal line" is a reference line which may be drawn on defecography. It extends from the inferior (lower) border of the ischium to the last coccygeal joint. See Bordeianou et al. 2018.

References

[edit]
  1. ^ a b c d e f g h i j k l m n o p q r s t Takahashi, T; Yamana, T; Sahara, R; Iwadare, J (October 2006). "Enterocele: what is the clinical implication?". Diseases of the Colon and Rectum. 49 (10 Suppl): S75-81. doi:10.1007/s10350-006-0683-2. PMID 17106819.
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  7. ^ Azadi, A; Cornella, JL; Dwyer, PL; Lane, FL (1 September 2022). Ostergard's Textbook of Urogynecology: Female Pelvic Medicine & Reconstructive Surgery. Lippincott Williams & Wilkins. pp. 212, 213. ISBN 978-1-9751-6235-1.
  8. ^ Steele SR, Maykel JA, Wexner SD (11 August 2020). Clinical Decision Making in Colorectal Surgery (2nd ed.). Cham: Springer International Publishing. p. 23. ISBN 978-3-319-65941-1.
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  10. ^ a b c d e f Tsunoda, A; Takahashi, T; Kusanagi, H (2022). "Reappraising the Role of Enterocele in the Obstructed Defecation Syndrome: Is Radiological Impaired Rectal Emptying Significant in Enterocele?". Journal of the Anus, Rectum and Colon. 6 (2): 113–120. doi:10.23922/jarc.2021-064. PMC 9045857. PMID 35572488.
  11. ^ a b c d Brown, SR; Hartley, JE; Hill, J; Scott, N; Williams, G, eds. (2012). Contemporary Coloproctology. London Heidelberg: Springer. pp. 391, 413. ISBN 978-1-4471-5856-1.
  12. ^ a b c Steele SR, Hull TL, Hyman N, Maykel JA, Read TE, Whitlow CB (20 November 2021). The ASCRS Textbook of Colon and Rectal Surgery (4th ed.). Cham, Switzerland: Springer Nature. pp. 990, 991, 1014. ISBN 978-3-030-66049-9.
  13. ^ a b Marzouk, D. "Obstructed Defaecation Web".
  14. ^ Ramaseshan, Aparna S.; Felton, Jessica; Roque, Dana; Rao, Gautam; Shipper, Andrea G.; Sanses, Tatiana V. D. (2017-09-19). "Pelvic floor disorders in women with gynecologic malignancies: a systematic review". International Urogynecology Journal. 29 (4): 459–476. doi:10.1007/s00192-017-3467-4. ISSN 0937-3462. PMC 7329191. PMID 28929201.
  15. ^ Mowat, A; Maher, D; Baessler, K; Christmann-Schmid, C; Haya, N; Maher, C (5 March 2018). "Surgery for women with posterior compartment prolapse". The Cochrane Database of Systematic Reviews. 2018 (3): CD012975. doi:10.1002/14651858.CD012975. PMC 6494287. PMID 29502352.
  16. ^ Ris, F; Gorissen, KJ; Ragg, J; Gosselink, MP; Buchs, NC; Hompes, R; Cunningham, C; Jones, O; Slater, A; Lindsey, I (August 2017). "Rectal axis and enterocele on proctogram may predict laparoscopic ventral mesh rectopexy outcomes for rectal intussusception". Techniques in Coloproctology. 21 (8): 627–632. doi:10.1007/s10151-017-1643-7. PMID 28674947.
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