Добавил:
kiopkiopkiop18@yandex.ru t.me/Prokururor I Вовсе не секретарь, но почту проверяю Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:
Ординатура / Хирургия / Библиотека им академика М.И. Перельмана / Книга_697_Библиотеки_им_академика_М_И_Перельмана.pdf
Скачиваний:
0
Добавлен:
30.08.2026
Размер:
55 Мб
Скачать
306
18 General Principles for the Postoperative Management of Patients with Anorectal Malformations
urinary control. Patients who have a large blad­der, rather atonic, diffi cult to empty, benefi t from intermittent catheterization and, due to the fact that the bladder is hypotonic, they remain dry in between catheterizations. Patients that have a hypertonic bladder and a poor bladder neck are
more diffi cult to manage. Our urologist col­leagues would indicate intermittent catheteriza­tion not only to keep the patient dry but also for reasons such as to protect the upper urinary tract and kidneys, particularly when the patient has neurogenic bladder and refl ux.

Postoperative Evaluation

1 9
It is very obvious that every day we feel the need and the pressure to evaluate the results of our operations in the most objective possible way. One of the biggest problems of medicine and surgery through history is the diffi culty to mea­sure, if possible with numbers, the quality of our results.
In an effort to be objective in the measure­ment of the bowel control, different surgeons created scores. Unfortunately, all of these scores that have been published until now are basically defi cient, because they include very subjective issues. Some of them [ 1 ] try to give points to subjective and abstract concepts such as “extra underpants for liners needed,” “social problems,” “activity restrictions,” and “rashes.” Obviously, those concepts do not refl ect the real result of an operation. Others [ 2 ] include concepts such as “infl uence in lifestyle,” “need to wear pad,” “tak­ing constipation medicine,” and “lack of activity” to “defer defecation for 15 min.” Other scores [
3 ] are extremely extensive, sophisticated, and
complicated and therefore cannot be used on an everyday basis; in addition, they are full of sub­jective concepts not necessarily relevant to bowel control such as “in the last week has your child experienced constipation?” “In the last week, has your child experience pain in the abdomen?” Even when some of these scores have been “vali­dated,” we considered them highly inadequate. Other scores [ 4 ] include a very controversial con- cept such as “frequency of defecation” that is not necessarily related to bowel control. We can say
the same about “stool consistency,” “stool odor,” “constipation,” and “modifi cations of the diet.” Other highly controversial concepts included in these scores are, for instance [ leak so that you have to change your underwear?” “Does bowel or stool leakage cause you to alter your lifestyle?” One of the fi rst scores created to try to measure bowel control in an anorectal malformation was designed by Kelly [ 6 ] but, unfortunately, includes very subjective concepts, such as “strength of puborectalis muscle action on digital examination.”
Another very serious problem that we found in all of our literature review is that when dis­cussing results, in terms of bowel control, unfor­tunately, most of the times, the surgeons continue using the old, archaic, misleading classifi ca­tion that divides the malformations into “high,” “intermediate,” and “low.” In addition, most of those papers do not include a description of the characteristics of the sacrum and/or the presence or absence of tethered cord. Those big defi cien­cies obviously disqualify many papers.
We propose that in the future, when we dis­cuss results in terms of bowel control, we describe malformation per malformation, in other words, bladder neck fi stula patients, prostatic fi stula, bulbar fi stula, etc., since each one of those has a different prognosis. In addition, we must subdi­vide them into those with normal sacrum and those with a very defi cient one. A very defi cient sacrum is one with a sacral ratio lower than 0.4. In addition, we must indicate if the patient has
5 ]: “Does stool
A. Peña, A. Bischoff, Surgical Treatment of Colorectal Problems in Children, DOI 10.1007/978-3-319-14989-9_19, © Springer International Publishing Switzerland 2015
307
308
19 Postoperative Evaluation
tethered cord or not. We will be comparing rectal prostatic fi stula with rectal prostatic fi stula, bul­bar with bulbar, perineal with perineal, etc.
Frequency of bowel movements is not neces­sarily related to the potential for bowel control or the quality of the procedure that was used to repair a malformation. The frequency of bowel movements depends on the length of the colon and/or the possibility of the patient’s suffering from some sort of irritation or infl ammation of the colon. Likewise, the presence or absence of constipation does not necessarily relate to the quality of the operation or the capacity of the patient to have bowel control. Constipation rep­resents rather a hypomotility disorder that, as we discussed in this textbook, is aggravated by many other factors. In other words, there are patients with severe constipation but continent; and there are other patients that have no constipation and they are incontinent. We should discuss sepa­rately the results in terms of constipation and the results in terms of bowel control.
In summary, we do not use any scores in the evaluation of our patients. The optimal best result in the repair of an anorectal malformation is to have a patient that behaves like a normal individ­ual, in other words, a person that has voluntary bowel movements and does not soil or smear the underwear. That is what we call totally continent patients. Another category of patients are those who have voluntary bowel movements. In other words, the patient tells the parents that he/she wants to use the toilet, voluntarily; he/she goes there and has a bowel movement; occasionally, the mother sees the underwear with smears or soiling. The third category includes patients that are totally incontinent; because they do not have voluntary bowel movements, they simply pass stool in the underwear. We realized that we are still far away from being able to quantify with numbers our results, but we believe that this is a better way to evaluate patients with anorectal malformations.
Efforts have been made in the past to evaluate bowel control, using radiology. Justin Kelly pub­lished some of the fi rst studies on defecograms in anorectal malformations [
7 ]. He emphasized the
importance of the rectal angle, as a manifestation
of the action of the “puborectalis muscle.” Yet, the studies were diffi cult to interpret, basically because in those years, anorectal malformations were still classifi ed as “high,” “intermediate,” and “low.” The fi ndings of those studies demon­strated that the presence of that angle, in general, correlates with good clinic results but not 100 %.
The concept was reintroduced by Yagi, doing what he calls “postoperative fecal fl ow metric analysis” in patients with anorectal malforma-
8 ]. It is a very sophisticated study, but it
tions [ does not tell us anything new and does not help us in the management of our patients. The same concept of the anorectal angle was again used to compare the results between posterior sagit­tal anorectoplasty and the laparoscopic approach, but unfortunately, the authors still refer to the malformations in terms of “high” and “interme­diate” [ 9 ].
Early in our practice, we performed defeco­grams in all of our patients, and in general, a good angle was more frequently associated with patients with bowel control, but not necessarily in all cases. Very soon we learned that bowel con­trol was something much more complex to evaluate.
Rectal manometry has been a very popular study. We exposed our methodological doubts about the validity of that study (see Chap. 25 , Sect. 25.3.2 ). Again, the authors keep referring to the anorectal malformations as “high” and “low”; they even claim that they can manometrically evaluate the quality of the “internal sphincter” [
1016 ]. The quality of the sacrum as well as the
presence or absence of tethered cord is not men­tioned in those papers.
CT scan evaluation of anorectal malformations has frequently been used. Obviously, the images have better defi nition than the previous radio­logic studies [ 17 ]. Unfortunately, CT scans show only transverse sections of the pelvis; therefore, when the rectum is completely anterior or poste­riorly mislocated, the study is not good enough. On the other hand, when the rectum is placed into the ischiorectal fossa, the study is valid and may guide us to make a decision about repositioning of the rectum within the limits of the sphincter (see Chap. 22 ). Unfortunately, sagittal views are

References

309
not seen in this kind of study, and we consider that an important defi ciency. We were ecstatic and happily surprised to read in one of the papers that the authors no longer refer to the puborectalis and internal or external sphincter, but rather mention the “muscle complex” [ 18 ]. We were also very happy to see that some of the publications related with computed tomography in anorectal malfor­mations were very honest papers, in which the authors mentioned that the clinical application of those imaging fi ndings were not applicable in the everyday practice [ 1921 ].
Electromyography has also been used to eval­uate the sphincter mechanism in patients with anorectal malformations [ 2224 ]. The informa- tion obtained with electromyography does not help us to make any decision preoperative or postoperative. We believe that there is no need to use an electromyographic study to see a sphincter that we already saw directly during an operation.
We have the feeling that sometimes the doctors who perform sophisticated studies do it with a spe­cifi c goal in mind, to fi nd the preconceived struc­tures that they learned, such as “external sphincter,” “puborectalis,” and “internal sphincter.”
We are extremely enthusiastic about the MRI technology to evaluate the anatomy of the pelvis, particularly in anorectal malformations. We believe that the MRI studies provide the best images that refl ect the real anatomy of the patient. In fact, we feel that the MRI studies confi rm our operative fi ndings and our concepts, related with the anatomy of the sphincter mechanism in a nor­mal individual and in patients with anorectal mal­formations (see Chap.
2 ). We use MRI studies
when we deal with complex malformations and particularly in patients that already had a previ­ous operation and suffer from fecal incontinence. The MRI study allows us to determine exactly the position of the rectum as related with the sphinc­ter mechanism. This study provides beautiful sagittal images as well as transverse sections. We perform the study introducing a large rubber tube into the rectum to be able to see exactly what is rectum and what is sphincter mechanism [ 25 ]. We have been very impressed by the fact that in spite of the beautiful, realistic images, provided by the MRI study, some authors insist in being
able to see a distinct “puborectalis muscle,” as well as an “internal sphincter” with this study; and yet, when we look at the images that they provide, we only see a continuum of muscle and no separation between those structures [ 2629 ]. Some authors claim not only to be able to see the “internal sphincter” in the MRI study, but they evaluate the sphincter, creating what they call an “internal sphincter score” [ 30 ]. The MRI study has been used by others to “compare differences between patients with constipation and fecal incontinence” [ 31 ]. We do not believe that this excellent imaging study is necessary to differen­tiate those two conditions.
In summary, we only use MRI studies in patients that were already operated on in the past, and we want to know the specifi c location of the rectum as related with the sphincter mechanism. Preoperatively, we fi nd diffi cult to do the MRI, logistically speaking, in little babies, because they need heavy sedation or anesthesia.
Endosonography has been used mainly in adults to evaluate the sphincter mechanism pre­operatively and postoperatively. We feel that the images provided by that study are not nearly as accurate as an MRI study. In addition, there is no study that tells us exactly at what levels of the anorectum are the images taken from [ 32 ].
The reading about the literature related with imaging technology confi rms the old saying:
“our eyes see only what we want to see.”
References
1. Templeton JM Jr, Ditesheim JA (1985) High imperfo-
rate anus–quantitative results of long-term fecal conti­nence. J Pediatr Surg 20(6):645–652
2. Maeda Y, Pares D, Norton C, Vaizey CJ, Kamm MA
(2008) Does the St. Mark’s incontinence score refl ect patients’ perceptions? A review of 390 patients. Dis Colon Rectum 51(4):436–442. doi:
s10350-007-9157-4
3. Brandt ML, Daigneau C, Graviss EA, Naik-Mathuria
B, Fitch ME, Washburn KK (2007) Validation of the Baylor Continence Scale in children with anorectal malformations. J Pediatr Surg 42(6):1015–1021; dis­cussion 1021. doi:
4. Hashish MS, Dawoud HH, Hirschl RB, Bruch SW, El
Batarny AM, Mychaliska GB, Teitelbaum DH (2010)
10.1016/j.jpedsurg.2007.01.070
10.1007/
310
19 Postoperative Evaluation
Long-term functional outcome and quality of life in patients with high imperforate anus. J Pediatr Surg 45(1):224–230. doi:
5. Sansoni J, Hawthorne G, Fleming G, Marosszeky N (2013) The revised faecal incontinence scale: a clini­cal validation of a new, short measure for assessment and outcomes evaluation. Dis Colon Rectum 56(5):652–659. doi:
6. Kelly JH (1972) The clinical and radiological assess­ment of anal continence in childhood. Aust N Z J Surg 42(1):62–63
7. Kelly JH (1969) Cine radiography in anorectal mal­formations. J Pediatr Surg 4(5):538–546
8. Yagi M, Iwafuchi M, Uchiyama M, Iinuma Y, Kanada S, Ohtaki M, Homma S (2001) Postoperative feco­fl owmetric analysis in patients with anorectal malfor­mation. Surg Today 31(4):300–307
9. Koga H, Miyano G, Takahashi T, Shimotakahara A, Kato Y, Lane GJ, Yamataka A (2010) Comparison of anorectal angle and continence after Georgeson and Pena procedures for high/intermediate imperforate anus. J Pediatr Surg 45(12):2394–2397. doi:
jpedsurg.2010.08.041
10. Nagasaki A, Ikeda K, Hayashida Y, Sumitomo K, Sameshima S (1984) Assessment of bowel control with anorectal manometry after surgery for anorectal malformation. Jpn J Surg 14(3):229–234
11. Molander ML, Frenckner B (1985) Anal sphincter function after surgery for high imperforate anus–a long term follow-up investigation. Z Kinderchir 40(2):91–96. doi:
12. Lin CL, Chen CC (1996) The rectoanal relaxation refl ex and continence in repaired anorectal malforma­tions with and without an internal sphincter-saving procedure. J Pediatr Surg 31(5):630–633
13. Emblem R, Diseth T, Morkrid L (1997) Anorectal anomalies: anorectal manometric function and anal endosonography in relation to functional outcome. Pediatr Surg Int 12(7):516–519. doi:
bf01258715
14. Keshtgar AS, Athanasakos E, Clayden GS, Ward HC (2008) Evaluation of outcome of anorectal anomaly in childhood: the role of anorectal manometry and endo­sonography. Pediatr Surg Int 24(8):885–892.
10.1007/s00383-008-2181-1
doi:
15. Kumar S, Al Ramadan S, Gupta V, Helmy S, Debnath P, Alkholy A (2010) Use of anorectal manometry for eval­uation of postoperative results of patients with anorectal malformation: a study from Kuwait. J Pediatr Surg 45(9):1843–1848. doi:
16. Bhat NA, Grover VP, Bhatnagar V (2004) Manometric evaluation of postoperative patients with anorectal anomalies. Indian J Gastroenterol 23(6):206–208
17. Taccone A, Martucciello G, Fondelli P, Dodero P, Ghiorzi M (1989) CT of anorectal malformation–a post­operative evaluation. Pediatr Radiol 19(6–7):375–378
18. Ong NT, de Campo M, Rowler R Jr (1990) Computerised tomography in the management of imperforate anus patients following rectoplasty. Pediatr Surg Int 5(4):241–245. doi:
19. Arnbjörnsson E, Laurin S, Mikaelsson C (1989) Computed tomography of ano-rectal anomalies.
10.1016/j.jpedsurg.2009.10.041
10.1097/DCR.0b013e318279c2ac
10.1016/j.
10.1055/s-2008-1059723
10.1007/
10.1016/j.jpedsurg.2010.04.012
10.1007/BF00169661
Correlation between radiologic fi ndings and clinical evaluation of faecal incontinence. Acta Radiol 30(1): 25–28
20. Arnbjörnsson E, Malmgren N, Mikaelsson C, Laurin S, Okmian L (1990) Computed tomography and mag­netic resonance tomography fi ndings in children oper­ated for anal atresia. Z Kinderchir 45(3):178–181. doi
10.1055/s-2008-1042576
:
21. Doolin EJ, Black CT, Donaldson JS, Schwartz D, Raffensperger JG (1993) Rectal manometry, com­puted tomography, and functional results of anal atre­sia surgery. J Pediatr Surg 28(2):195–198
22. Iwai N, Kaneda H, Taniguchi H, Tsuto T, Yanagihara J, Takahashi T (1985) Postoperative continence assessed by electromyography of the external sphinc­ter in anorectal malformations. Z Kinderchir 40(2):87–90. doi:
23. Hayashi A, Yokoyama J, Katsumata K (1989) The electromyographic examination to evaluate the exter­nal sphincter muscle in anorectal malformations. Prog Pediatr Surg 24:33–39
24. Fukata R, Iwai N, Yanagihara J, Iwata G, Kubota Y (1997) A comparison of anal endosonography with electromyography and manometry in high and inter­mediate anorectal anomalies. J Pediatr Surg 32(6): 839–842
25. Marotti MA, Magalhaes Filho A, Maksoud JG, Rosenberg L (1995) [Magnetic resonance: its value in treatment of fecal incontinence] Ressonancia mag­netica: seu valor no tratamento da incontinencia fecal. Radiologia Brasileira 28(6):309–318
26. Vade A, Reyes H, Wilbur A, Gyi B, Spigos D (1989) The anorectal sphincter after rectal pull-through sur­gery for anorectal anomalies: MRI evaluation. Pediatr Radiol 19(3):179–183
27. Fukuya T, Honda H, Kubota M, Hayashi T, Kawashima A, Tateshi Y, Masuda K (1993) Postoperative MRI evaluation of anorectal malforma­tions with clinical correlation. Pediatr Radiol 23(8): 583–586
28. Li YW, Hung WT, Chen CC, Su CT, Hsu CY (1997) Postoperative MRI of anorectal malformation. J Formos Med Assoc 96(3):199–204
29. Husberg B, Rosenborg M, Frenckner B (1997) Magnetic resonance imaging of anal sphincters after reconstruc­tion of high or intermediate anorectal anomalies with posterior sagittal anorectoplasty and fi stula-preserving technique. J Pediatr Surg 32(10):1436–1442
30. Hettiarachchi M, Garcea G, deSouza NM, Williams AD, Clayden GS, Ward HC (2002) Evaluation of dys­function following reconstruction of an anorectal anomaly. Pediatr Surg Int 18(5–6):405–409.
10.1007/s00383-002-0808-1
doi:
31. Yong C, Ruo-yi W, Yuan Z, Shu-hui Z, Guang-Rui S (2013) MRI fi ndings in patients with defecatory dys­function after surgical correction of anorectal malfor­mation. Pediatr Radiol 43(8):964–970. doi:
s00247-013-2639-8
32. Emblem R, Diseth T, Morkrid L, Stien R, Bjordal R (1994) Anal endosonography and physiology in ado­lescents with corrected low anorectal anomalies. J Pediatr Surg 29(3):447–451
10.1055/s-2008-1059722
10.1007/

Bowel Management for the Treatment of Fecal Incontinence

2 0

20.1 Introduction

We use the term “bowel management for the treatment of fecal incontinence” to refer to a pro­gram implemented at our institution which is designed to keep patients who suffer from fecal incontinence artifi cially clean in the underwear [ 13 ]. The management basically consists of the administration of an individually designed enema that is given once a day, which allows the patient to remain completely clean in the underwear for 24 h. In a number of cases, the program includes the medical manipulation of the colonic motility with a specifi c diet and/or medication such as loperamide. 1
Enemas have been used for the management of fecal incontinence for many years with vari­able results [ 412 ]. When the patients come to our clinic and their parents learn about what our bowel management program is all about, it is not unusual for us to perceive their disappointment. They frequently explain to us that they expected a more sophisticated management of fecal inconti­nence; in fact, they frequently say that their child
1
Loperamide HCl 2 mg simethicone 125 mg (in each caplet) slows the rate at which the stomach and intestines move. It also increases the density of stools and reduces the amount of fl uid in the stool.
previously received enemas that resulted in no improvement. Some even say that enemas actu­ally make their son or daughter worse in terms of bowel control. That parent’s reaction is under­standable. The bowel management program that we implement in our clinic includes therapeutic elements (enemas, constipating diet, and medica­tions to slow down the colonic motility) that have been widely used in the past in the management of fecal incontinence. However, we like to say that we use the same therapeutic elements, but with a specifi c, different rationale that allows us to have a high degree of success. We explain this to the parents and ask them for patience and tol­erance, so we can demonstrate that the same ther­apeutic elements (enemas, diet, and medication) when used following a systematic rationale may have much better results.
The basic principles of our program are:
• Every patient needs a different type of enema because each one has a different type of colon (size and motility).
• The only way to monitor the effi ciency and effectiveness of an enema is by taking an abdominal x-ray fi lm to determine the amount and distribution of stool in the colon before and after the enema. Every day (during 1 week), we readjust the volume, concentration,
Electronic supplementary material Supplementary material is available in the online version of this chapter at
10.1007/978-3-319-14989-9_20 .
A. Peña, A. Bischoff, Surgical Treatment of Colorectal Problems in Children, DOI 10.1007/978-3-319-14989-9_20, © Springer International Publishing Switzerland 2015
311
312
20 Bowel Management for the Treatment of Fecal Incontinence
and content of the enema, according to the specifi c patient’s reaction and the radiologic image of his or her abdomen.
• It is extremely important, as a fi rst step, to determine the patient’s specifi c type of colonic motility in order to be successful. We infer this from a contrast enema. The bowel management program at our insti-
tution was created by trial and error, out of our desperation, provoked by the follow-up of many patients who suffered from this devastating prob­lem (fecal incontinence). During this long pro­cess (30 years), we learned many lessons, and we believe that we now have reached an important degree of expertise that allows us to have very good results, and with that, we have improved the quality of life of many children [ 13 ].
In dealing with anorectal malformations,
clearly, a perfect initial anatomic reconstruction is only part of the job. After the operation, we are obligated to continue following our patients in order to manage the expected functional sequelae; the ultimate goal being a child with clean and dry underwear.
It is unacceptable to operate on a patient and
let other professionals, not knowledgeable about our procedures, take care of the functional sequelae related to our operations.
In retrospect, from our own experience in the
surgical treatment of anorectal malformations, we have learned that roughly 75 % of our patients have voluntary bowel movements [ 13 ]. This means the child is capable of verbalizing his or her desire to use the toilet voluntarily and suc­cessfully. Unfortunately, half of that 75 % group still soils the underwear occasionally. Usually those episodes of soiling are a manifestation of a degree of fecal impaction as a consequence of a mistreated problem of constipation. Once we readjust the amount of laxatives, the patient usu­ally responds very well, and the soiling disap­pears. That leaves us with approximately 25 % of patients who suffer from total fecal incontinence. It is this group of patients for whom we feel mor­ally obligated to get them clean and from whom we got the motivation to create, step by step, a series of principles and maneuvers that we now call the “bowel management program.” Soon
enough, we started seeing patients not operated on by us, suffering from fecal incontinence. In fact, nowadays, most of the patients that we take care of in our bowel management clinic are patients operated on at other institutions. What we convey here is the result of an accumulated experience with the management of approxi­mately 800 patients suffering from different types of fecal incontinence.
The bowel management program is only a medical and not a surgical treatment. Yet, most pediatricians and gastroenterologists are not familiar with this kind of management, and sur­geons are usually “too busy” to perform medical treatments. As a consequence, many fecally incontinent patients remain rather abandoned, looking for centers where they can receive the benefi t of a well-integrated, comprehensive, bowel management program.
We have found that bowel management pro­grams are not popular. There are several reasons that may explain this. Hospitals like to advertise what they do, but usually they advertise “elegant” conditions and procedures. The public relations departments of hospitals like to advertise, for example, when the institution performs the fi rst cardiac transplant, when they inaugurate a depart­ment of fetal surgery, or when they make an advance in the management of cancer. In addi­tion, generally speaking, the media does not like to talk about fecal incontinence, stool, urine, and sexual problems. To advertise the opening of a department for bowel management is “not ele­gant.” In fact, we found that many doctors in the United States or in other countries perform an operation to repair an anorectal malformation, and then, when the patient goes back to their clinic suffering from fecal incontinence, the sur­geons refer the patient to us, for the bowel man­agement, and sometimes they use derogatory terms such as “go to that clinic to learn how to give enemas.” It is a very common misconception to believe that bowel management is equivalent to giving enemas. In this chapter, we try to show that the bowel management program is much more than giving an enema.
We also believe that the bowel management program is not popular because it does not pay
20.1 Introduction
313
well. Most insurance companies do not even know what a bowel management program is. As the reader will be able to learn from this chap­ter, it takes a signifi cant amount of time and effort from surgeons and nurses to implement the bowel management in a single child, and insurance companies do not compensate for all this. It is rather ironic that, at the present time, a surgeon can charge about ten times more money for a 30-min operation than he can for a 1-week treatment that requires a lot of dedication and work with a child with fecal incontinence. Yet, the bowel management program allowed us to improve the quality of life, more than with any operation that we have done and in many more children.
In addition, there is certain reluctance by par­ents to accept the bowel management program. This is based on certain misconceptions. These include the idea that the enemas may produce malnutrition in children because some parents think that the enemas wash out nutrients from the bowel. We have to go through a long explana­tion, including showing diagrams, to explain that enemas only remove the waste material from the colon and not the nutrients from the small bowel. In addition, we have never seen a patient suffer­ing from malnutrition related to the administra­tion of enemas.
Another frequent misconception of many par­ents is the idea that once they start the bowel management, it is going to be for life. This con­cept is partly true. Many patients, of course, were born with severe anatomic defects that allow us to predict that most likely they will never have bowel control, and therefore we may reasonably believe that the bowel management will be neces­sary for life, unless a new scientifi c advance allows us to offer them something better. However, there are many other patients that have a borderline kind of bowel control, who may ben­efi t from a temporary bowel management and who later in life develop bowel control.
Another misconception is the idea that the fre­quent administration of enemas will make a male patient a homosexual. There is no evidence that this could happen. Homosexuality is not more common among patients who received bowel
management, and the overwhelming majority of homosexuals have never received bowel management.
Finally, many parents believe that subject­ing their child to a bowel management program may interfere with the natural toilet training pro­cess. This is false. In fact, we are convinced that the bowel management may help the patient to become toilet trained. A temporary bowel man­agement in a patient that has borderline bowel control allows the patient to gain self-confi dence by feeling clean, not smelly, attend school, and play with other children without being worried about having “accidents” in the underwear. If the patient has some potential for bowel control, the bowel management is considered temporary and gives the patient the opportunity of being absolutely clean. The toilet training process can subsequently be attempted during the summer vacations, having more chance of success, partic­ularly when the child already experienced being clean and odorless. It will be easy for a child that has been clean for several months to perceive when he is soiled with stool. A child that grows up with diapers and stool in the underwear all the time becomes accustomed to that and sometimes is more diffi cult to train.
Once we are successful with the bowel man­agement regimen and keep the patients com­pletely clean, provided the patients are old enough to understand what an operation is all about, we discuss with the parents and the patients the pos­sibility of performing an operation that will allow the patient to receive enemas in an antegrade man­ner. This is through a small orifi ce or an artifi cial device, located in the abdominal wall, connected with the colon of the patient, frequently through the cecal appendix (see Chap.
21 ). This has been
called Malone [ 14 ] or ACE procedure (antegrade continent enema). There are many techniques and different ways to do it. There is no question that these antegrade enema procedures, or techniques, are benefi cial and contribute to improve the qual­ity of life of many patients. However, we fi rmly believe that these procedures are only indicated when the surgeon has demonstrated that the bowel management is successful. We have seen a signifi ­cant number of patients that were operated on at
314
20 Bowel Management for the Treatment of Fecal Incontinence
other institutions, undergoing different types of antegrade enema procedures; in whom the proce­dures were successful, but the patients were still dirty with stool in the underwear, simply because the surgeon never implemented a good bowel management program. We consider it highly inad­equate to offer an antegrade enema operation to a patient in whom the surgeon never proved or dem­onstrated that the bowel management worked. If enemas given through the rectum fail to keep the patient clean, most likely they will be equally inef­fi cient when given in an antegrade fashion.

20.2 Goals of the Bowel Management Program

The bowel management program was designed to take care of patients who suffer from fecal inconti­nence, from different origins, not only anorectal malformations. Our goal is to keep the patient arti­fi cially completely clean 24 h per day, so the patient can be socially accepted, attend school, play, and become psychologically adjusted to society.
The majority of fecally incontinent patients that we treat are patients that were born with anorectal malformations, some of them operated on by us, but the majority of them were repaired in other centers. Another group of fecally incon­tinent patients were born with Hirschsprung’s disease; they were operated on and subse­quently suffer from fecal incontinence. This is very unfortunate because theoretically patients with Hirschsprung’s disease who are born with an intact continence mechanism, which receive a technically correct operation, should not suf­fer from fecal incontinence; yet, we have treated many such patients (see Chap. routine evaluation of patients with Hirschsprung’s disease, who suffer from fecal incontinence, includes an examination under anesthesia to determine the integrity of the anal canal. In a technically correct operation for Hirschsprung’s, the patient’s anal canal and the dentate line should have been preserved intact. Having an intact anal canal means that the sensation (indispensable to have bowel control) most likely is preserved and also that the voluntary sphincter mechanism
24 ). Part of our
Fig. 20.1 Destroyed anal canal
is most likely preserved. Unfortunately, we see many patients who had an operation that destroyed the anal canal (Fig.
20.1 ); the surgeon
resected it during the dissection and anastomosed the normoganglionic bowel to the perianal skin, leaving no trace of anal canal, which most likely will make that patient fecally incontinent for life.
Another group of patients that suffer from fecal incontinence are those who are born with myelomeningocele and spina bifi da. This group represents a population of patients much larger than the population of anorectal malformations and Hirschsprung’s disease [ 15 ]. We have not been actively advertising our program in that population, because we do not have the logistic capacity to take care of so many patients, particu­larly with the limitations that were already men­tioned, in terms of reimbursement, time, and personnel. However, we have treated a signifi cant number of these patients who defi nitely benefi ted from our bowel management program.
Other patients were born with sacrococcygeal teratomas or other kinds of tumors in the pelvis. The tumors or the resection of those tumors dam­aged the structures that are important for bowel control and led the patient to suffer from fecal incontinence. Finally, patients who suffered from severe pelvic trauma that damaged the mecha­nism of continence may also benefi t from this program. Occasionally, we take care of patients born with sacral agenesis without an anorectal malformation.

20.3 Evaluation of the Patient for Bowel Management

315
20.3 Evaluation of the Patient for Bowel Management
Characteristically, we receive letters, phone calls, or e-mails of families of patients who hear about us, from pediatricians or pediatric surgeons, or they learn about our center through the Internet. They send a letter or an e-mail asking for help. We ask them to send us copies of the operative reports of their child and request several studies that can be done at home and sent to us, or alter­natively, the patient and the family may come to our center and have the studies done here. These studies include:
• X-ray fi lms of the sacrum and lumbar spine in
AP and lateral positions to evaluate for scolio­sis and spinal hemivertebrae and to assess the development of the sacrum from which we can partially infer the functional prognosis of the specifi c malformation
• Kidney ultrasound and voiding cystourethro-
gram to evaluate for associated urologic problems
• Contrast enema with water-soluble contrast
material and without bowel preparation
• MRI of the pelvis (Peña/Patel protocol) 2 –
mainly in patients born with complex malformations
• MRI of the spine – to rule out the presence of
tethered cord or other associated spinal and cord problems
• A voiding cystourethrogram in cases with an
abnormal kidney ultrasound or urinary symptoms
The purposes of performing all these studies in all patients that come to our clinic suffering from fecal incontinence include:
• First, we want to fi nd out the specifi c type of
malformation that they were born with and
their associated malformations (operative
reports, x-rays of the sacrum and lumbar
2
MRI Peña/Patel protocol: The purpose of this study is to determine the position of the rectum in relationship to the sphincteric mechanism. We try to see if the rectum is ante­riorly, posteriorly, or laterally mislocated, in relation to the sphincter mechanism. In addition, we look for other abnormalities such as posterior urethral diverticulum fre­quently found in these patients.
spine, and MRI of the spine to rule out tethered cord). Learning about these allows us to predict whether or not the bowel management will be given on a permanent basis or temporarily (depends on the functional prognosis of the orig­inal malformation and the associated problems). Also, this will help us to detect a very special and interesting group of patients that were born with a “good prognosis” type of defect. They underwent a technically correct operation, they never received adequate treatment for their constipation, and they suffer from overfl ow pseudoincontinence. They only require laxa­tives and no enemas!!
• Second, we want to learn about the type of colonic motility that the patient has, which is the key for success. (For that we use the con­trast enema.)
• Third, we want to fi nd out untreated or poorly treated associated defects (mainly urologic). This will be discussed separately due to its importance. This is the reason to request a kid­ney ultrasound, voiding cystourethrogram, and MRI of the spine and pelvis. We also want to know whether or not the rectum following the pull-through is located within the limits of the sphincter; the MRI done with a special technique (Peña/Patel protocol) 3 is the best way to determine this. We evaluate all those studies, elaborate a man-
agement plan, and then give the patient an appointment to come to our clinic.
A few years ago, we decided to run our bowel
management program only during one specifi c week every month rather than daily. During that particular week, we see between 15 and 40 patients, all gathered for evaluation and manage­ment of fecal incontinence. We start the fi rst day with a conference from one of us (surgeons) to welcome the parents and to explain generalities about the bowel management program. That is followed by a lecture by one of our nurses to talk about different types of enemas and techniques of enema administration. Then, in our clinic we see each one of the patients to discuss, on an
3
See footnote 2.