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212 B. Gurland et al.
Fig. 17.12 A V-shape skin incision is made at the previously marked location and the stoma is created. Illustration © CCF
Fig. 17.13 The ACE orifi c e

References

1. Briel JW, Schouten WR, Vlot EA, Smits S, van Kessel I. Clinical
value of colonic irrigation in patients with continence disturbances. Dis Colon Rectum. 1997;40(7):802–5.
2. Malone PS, Ransey PG, Kiely EM. Preliminary report: the ante-
grade continence mechanism. Lancet. 1990;336:1217–8.
3. Monti PR, Lara RC, Dutra MA, De Carvallo JR. New techniques
for construction of efferent conduits based on the Mitranoff princi­ple. Urology. 1997;49:112–5.
4. Willams NS, Hughes SF, Stuchfi eld B. Continent colonic conduit
for rectal evacuation in severe constipation. Lancet. 1994;343(8909): 1321–4.
5. Kiely EM, Ade-Ajayi N, Wheeler RA. Caecal fl ap conduit for
antegrade continence enemas. Br J Surg. 1994;81(8):1215.
6. Mitrofanoff P. Cystostomie continenente trans-appendiculare dans le
traitment des vessies neurologiques. Chir Pediatr. 1980;21:297–305.
7. Sinha CK, Grewal A, Ward HC. Antegrade continence mechanism (ACE): current practice. Pediatr Surg Int. 2008;24(6):658–8.
8. Worsoe J, Christensen P, Krogh K, Buntzen S, Laurberg S. Long­term results of antegrade colonic enema in adult patients: assessment of functional results. Dis Colon Rectum. 2008;51(10):1523–8.
9. Poirier M, Abcarian H, Nelson R. Malone antegrade continent enema: an alternative to resection in severe defecation disorders. Dis Colon Rectum. 2007;50(1):22–8.
10. Dick AC, McCallion WA, Brown S, Boston VE. Antegrade colonic enemas. Br J Surg. 1996;83:642–4.
11. Gerharz EW, Vik W, Webb G, Leaver R, Shah PJ, Woodhouse CR. The value of the MACE procedure in adult patients. JAM Coll Surg. 1997;185:544–7.
12. Teichman JM, Harris JM, Currie DM, Barber DB. Malone ante­grade continence mechanism for adults with neurogenic bowel dis­ease. J Urol. 1998;160:1278–81.
13. Hirst GR, Arumugam PJ, Watkins AJ, Mackey P, Morgan AR, Carr ND, et al. Antegrade continence enema in the treatment in the treat­ment of obstructed defecation with or without fecal incontinence. Tech Coloproctol. 2005;9:217–21.
14. Lees NP, Hodson P, Hill J, Pearson RC, MacLennan I. Long term results of the antergrade continent enema procedure for adults with constipation. Colorectal Dis. 2004;6(5):362–8.
15. Rongen MJ, van der Hoop Gerritsen, Baeten CG. Cecal access for antegrade colon enemas in medically refractory slow transit consti­pation. Dis Colon Rectum. 2001;44:1644–9.
16. Nanigian DK, Kurzrock EA. Intermediate – Term outcome of the simplifi ed laparoscopic antegrade continence enema procedure: less is better. J Urol. 2008;179:299–303.
17. Webb HW, Barraza MA, Crump JM. Laparoscopic appendicostomy for management of fecal incontinence. J Pediatr Surg. 1997;32:457–8.
18. Sinha CK, Butler C, Haddad M. Left Antegrade Colonic Enema (LACE): review of the literature. Eur J Pediatr Surg. 2008;18(4):215–8.
19. Uno Y. Introducer method of percutaneous endoscopic cecostomy and antegrade continence enema by use of the Chait Trapdoor cecostomy catheter in patients with adult neurogenic bowel. Gastrointest Endosc. 2006;63:666–73.

Urinary Stomas

Amit R. Patel and Amr F. Fergany
1 8

Introduction

The formation of a urinary stoma may be indicated in the patient that requires urinary diversion. Patients with urologic/ gynecologic malignancy such as bladder cancer or cervical cancer; benign conditions such as neuropathic bladder, extensive urethral stricture disease, complex urinary fi stulas, or congenital malformations; and infl ammatory disorders of the lower urinary tract with either irradiation or immunologic etiology are all indications for lower urinary tract diversion. The use of bowel has remained a constant for the last 150 years in diverting the genitourinary tract.
The fi rst stomas were internal, such as ureterorectal ligations for bladder exstrophy by Sir John Simon in 1851, Boari’s mechanical button in 1895 to avoid ureteral stenosis, and Madyl’s intraperitoneal bladder trigone reimplantation into the sigmoid. Coffey developed the ureterosigmoidostomy in 1911, which remained the preferable alternative to noncontinent exter­nal drainage. Eventually urinary stomas evolved into cutaneous stomas. Verhoogen’s continent catheterizable ileocecal pouch was introduced in 1909, later abandoned, brought back into favor by Gilchrist, and fi nally re-emerged as the Indiana pouch. Bricker’s reintroduction of ileal conduit in 1950 as a diversion with fewer complications and greater technical feasibility [ 1 ] made it one of the most commonly used urinary stomas. Today, urologic surgeons can choose from an arsenal of urinary stomas from ileovesicostomies to noncontinent conduits to pouches with continent cutaneous catheterizable stomas.
A. R. Patel (*) Urologic Oncology , University of Chicago Medical Center , Chicago , IL , USA e-mail: amitpdoc@gmail.com
A . F . F e r g a n y Glickman Urological and Kidney Institute , Cleveland Clinic Foundation , Cleveland , OH , USA
The scope of this chapter will cover urinary stomas, including the use of bowel to create urinary stomas. We will discuss the indications, operative techniques, and complica­tions of cutaneous vesicostomies, conduits, and continent pouches with catheterizable cutaneous stomas.

Vesicostomy

Indications

The vesicostomy is the procedure of choice in patients requir­ing immediate, temporary urinary diversion. It is often used in children as a temporizing measure for acute renal failure, urinary sepsis, or bladder outlet obstruction from posterior urethral valves. The continent vesicostomy procedure can be performed for patients who have a large capacity bladder but do not have good bladder-emptying function. Patients with lower motor neuron lesion or prune belly syndrome may benefi t from continent catheterizable vesicostomy made from the bladder itself.

Operative Technique: Noncontinent Vesicostomy

The noncontinent vesicostomy is usually placed between the pubic symphysis and the umbilicus. A 2–3-cm midline inci­sion is made through the anterior rectus fascia. Using a Balfour or other self-retaining retractor, the rectus bellies are separated, and the space of Retzius is entered. The perito­neum is bluntly dissected off the bladder wall. The bladder is opened adjacent to the midline near the dome of the bladder. The bladder wall adjacent to the cystotomy is secured to the rectus fascia with interrupted 4-0 polydioxanone (PDS) suture. The mucosa is approximated to the skin edges using interrupted 4-0 chromic suture.
V.W. Fazio et al. (eds.), Atlas of Intestinal Stomas, DOI 10.1007/978-0-387-78851-7_18, © Springer Science+Business Media, LLC 2012
213
214 A.R. Patel and A.F. Fergany

Operative Technique: Continent Vesicostomy

The bladder is exposed through a midline or Pfannenstiel incision. The peritoneum is swept off of the dome and poste­rior aspect of the bladder. The bladder is fi lled with saline and distended through a urinary catheter. A bladder fl ap measuring approximately 7 cm in length and 2 cm in width is marked just lateral to the midline (Fig. 18.1a ). The strip is
ab
rotated cephalad, and an additional 3 cm of mucosal fl ap is dissected free from the detrusor (Fig. 18.1b ). The mucosal fl ap is tubularized over a 12 French catheter using a running 4-0 Vicryl suture (Fig.
18.1c, d ). The full-thickness bladder
fl ap is tubularized over the catheter using a running 3-0 Vicryl suture (Fig. 18.1e, f ), ensuring full-thickness mucosa and serosa into the anastomosis. The tubularized bladder fl ap will serve as the continent catheterizable stoma.
cd
Fig. 18.1 Continent vesicostomy. ( a ) A fl ap is created from the mobilized bladder. ( b , c ) A submucosal fl ap is created and tubularized over a catheter. ( d , e ) The internal mucosal layers are closed over the
catheter in two layers. ( f ) The bladder is closed with full-thickness sutures involving mucosa and serosa. Illustration © CCF
Fig. 18.1 (continued)
21518 Urinary Stomas
ef

Catheterizable Stoma Formation (for Continent Vesicostomies and Pouches)

The stoma site should be selected to allow for a tension-free anastomosis. A V-shaped skin incision is made at the stomal site for interposition into the stoma. The fl ap is dissected through the subcutaneous fat to the fascia. A cruciate inci­sion is made in the fascia and bluntly dilated to just beyond the caliber of the stoma. The stoma is brought out through the anterior abdominal wall to the skin and spatulated to allow for a cosmetic closure and to reduce stomal stenosis (Fig. 18.2a ). The apex of the triangular skin fl ap is secured to the apex of the spatulated stoma using interrupted 4-0 Vicryl suture (Fig. 18.2b ). The stomal anastomosis is completed using interrupted 4-0 Vicryl suture. The stoma should be catheterized several times to ensure ease of catheterization without kinking of the stoma. The stoma can also be secured with a single interrupted 3-0 Vicryl suture to the posterior abdominal wall to reduce kinking. The anterior bladder wall is secured to the posterior rectus sheath using 2-0 Vicryl suture.

Appendicovesicostomy and the Mitrofanoff Principle

Mitrofanoff reported the use of isolated appendix implanted into the bladder as a continent cystostomy [ principle relies on a narrow conduit (appendix, ureter, or tapered bowel) connected between the skin and a large uri­nary reservoir (augmented bladder or urinary pouch) in an
2 ] . The Mitrofanoff
anti-refl uxing manner. The conduit remains continent and is easy to catheterize to drain the reservoir.

Operative Technique

The right colon is mobilized beyond the hepatic fl exure, and the appendix and its mesentery is carefully dissected off of the cecal attachments (Fig. 18.3a ). Care is taken to preserve the appendiceal artery, a branch off of the ileocolic artery. Assessment of the mobilized appendix is necessary to ensure adequate reach to the bladder and chosen stoma site. The appendix is detached from the cecum sharply, and the cecal opening is closed using absorbable running suture, followed by Lembert sutures to over the closure line. An edge of cecum should be left on the appendix to provide a distal stoma that has reduced risk for stricture. The terminal end of the appen­dix is opened, and the lumen is dilated using serial metal sounds to ensure passage of a 12-Fr catheter.
A bladder hiatus is chosen for implantation of the appen­dix or Monti-Yang segment (see Yang-Monti Ileovesicostomy ), ensuring adequate distance to reach the selected stoma site. The conduit is brought into the bladder through the hiatus (Fig. 18.3b ). At least a 2–3-cm submucosal tunnel should be made and the conduit passed under the tunnel . Of note, the location of the hiatus and submucosal tunnel should be made away from the bladder neck and bladder trigone to avoid painful catheterization. The stoma is formed as discussed previously (see Catheterizable Stoma Formation ). The cath- eter is usually secured in place for 3 weeks prior to initiating intermittent catheterization.
216 A.R. Patel and A.F. Fergany
Fig. 18.2 Catheterizable stoma formation. The catheterizable tube is brought through the V-shaped skin incision, spatulated, and secured to the skin using interrupted sutures. Illustration
©
CCF

Yang-Monti Ileovesicostomy

The Mitrofanoff principle can be applied to a retubularized segment of ileum if the appendix has been removed or har­vested for other purposes. A 2–3-cm segment of ileum is har­vested with its mesentery demonstrating adequate vascular fl ow to the segment (Fig. 18.4 ). The segment is opened along its antimesenteric side. The opened segment is retubularized transversely in two layers over a 14 Fr catheter. The mucosa is approximated using running 5-0 Vicryl suture and the seromuscular layer is brought together using interrupted 4-0 Vicryl suture, leaving the stomal end spatulated for the stomal anastomosis. The tube is implanted into the bladder in similar fashion as the appendicovesicostomy. Stoma for­mation for this tube is described under Catheterizable Stoma
Formation .

Complications

Diffi culties with catheterization and/or stomal stenosis rep­resent the most common complications in long-term studies, ranging from 20% to 60% for all types of catheterizable vesi­costomies. Over 80% of patients remain continent after the initial surgery, with up to 96% achieving continence follow­ing a maximum of two revision procedures [
3 ] . Most stomal
complications are related to the technical placement of the stoma and may be avoidable [ 4 ] . Studies in pediatric popula- tions demonstrate normal bladder function in a majority of patients with various congenital uropathies [ 5 ] . Urolithiasis complications can occur in up to 15% of patients [ 3 ] . The appendicovesicostomy, Yang-Monti ileovesicostomy, and continent vesicostomy, all provide adequate continent uri­nary stomas for patients when indicated.

Ileal Conduit

The uretero-ileal-cutaneous diversion was fi rst described by Seiffert in 1935 [ 6 ] . Due to the technical diffi culty to effec- tively collect and store urine, the procedure was abandoned. Bricker redescribed the procedure in 1950, and it has since gained widespread acceptance worldwide [ 1 ] . Advances in enterostomal treatment and therapy have increased the dura­bility and tolerance of the ileal conduit. The ileal conduit is technically the fastest and simplest conduit to construct, and it is the simplest to take care of. The ileal conduit has one of the largest long-term outcomes, and therefore it is the urinary diversion procedure to compare to all other techniques. Any segment of ureter can be attached to the conduit from the renal pelvis to the trigone, making the ileal conduit construc­tion a versatile method for diversion.
Fig. 18.3 Mitrofanoff catheterizable stoma. ( a ) The appendix is harvested with healthy mesoappendix. ( b ) It is traversed through a cystotomy and submucosal channel into the bladder. The proximal end is secured to the skin and a catheter is place through the stoma into the bladder. The appendiceal mucosa is secured to the bladder mucosa. ( c ) The bladder is secured to the anterior abdominal wall to prevent tension on the anastomosis. Illustrations © CCF
21718 Urinary Stomas
a
b

Indications

Any patient requiring urinary tract reconstruction following extirpative pelvic surgery may be considered for an ileal con­duit. It can be used in cases where the bladder is left in-situ; for example, in neurogenic bladder, although modern man-
c
agement of neurogenic bladder has limited the role of supravesical diversion for this indication. The decision to choose the type of urinary diversion also relies heavily on the clinical condition of the patient, their comorbidities, body habitus, disability, and any other systemic illness that may preclude them from other types of urinary diversions.
218 A.R. Patel and A.F. Fergany
Fig. 18.4 Monti-Yang tube. ( a ) A 2–3-cm segment of well-vascularized ileum is harvested and ( b , c ) detubularized closer to the mesenteric edge. ( d ) The segment is retubularized transversely over a catheter, leaving one end spatulated for the stomal anastomosis. Illustration © CCF

Preoperative Preparation

Preoperative preparation of the patient includes a regimen of clear liquid diet starting 1–2 days prior to surgery, followed by a 4-L preparation of polyethylene glycol on the afternoon before surgery. Patients with indwelling urinary catheters or colonized urinary tracts are admitted the day prior to surgery for broad-spectrum intravenous antibiotics, which continue postoperatively for approximately 3–5 days.
The stoma site should be determined preoperatively in all patients by an enterostomal nurse or specialist. Patients are examined in the supine, sitting, and standing positions. The umbilicus, belt line, bony protuberances, prior surgical scars, and skin folds are noted and avoided when choosing the stoma site. The ideal stoma site is usually just medial to the linea semilunaris between the umbilicus and the anterior superior iliac spine.

Operative Technique

Following cystectomy or pelvic exenteration, the terminal ileum is identifi ed and examined for length, and radiation enteritis, infl ammatory bowel disease, or malignancy if applicable. The optimal length of conduit differs in each case due to patient body habitus and length of available ureter. The recommended length of conduit should not exceed the distance between the sacral promontory and the stoma site. Transillumination of the mesentery allows for inspection of the blood supply to the conduit. The ileocecal artery is spared to ensure vascular fl ow to the ileocecal junction. It is important to identify at least two vascular pedicles to the conduit to ensure adequate blood supply to the conduit. An incision is made in the peritoneum over the mesentery and the mesenteric vessels are clamped and tied (Fig. 18.5 ). The length and mobility of the segment that is
Fig. 18.5 Ileal conduit harvest. ( a ) An ileal segment 15 cm proximal to the ileocecal valve is isolated and ( b ) placed caudally to the anastomosis of the small bowel. Illustrations © CCF
21918 Urinary Stomas
a
b
to reach the skin is only dependent on the distal mesenteric division; thus, the proximal mesenteric division should be short, allowing for a broad vascular pedicle to the conduit. The bowel is divided using a bowel stapler, and the conduit segment is placed caudal to the remainder of bowel. The mesenteric window is closed using interrupted 3–0 silk suture to avoid mesenteric hernia, and bowel continuity is subsequently reestablished.
The staple line at the distal (efferent) end of the conduit is excised and the conduit lumen is opened. A small opening is made in the proximal end of the conduit and the conduit is irrigated free of enteric contents with normal saline irriga­tion. At this point, we prefer to prepare the stoma site to allow for more optimal localization of the ureteroileal anastomosis.
The fi nal maturation of the stoma in obese patients can be performed after the ureteroileal anastomosis is performed, to avoid diffi culty in passing the stents through a large abdomi­nal wall.

Stoma Formation

The skin edge, fascial layer, and peritoneal edge are brought into alignment using Kocher clamps. A circular plug of skin is excised from the predetermined stoma site. Dissection, using electrocautery, is carried through the subcutaneous fat to the anterior rectus fascia. A cruciate incision is made in the fascia, exposing the belly of the rectus muscle. The
220 A.R. Patel and A.F. Fergany
Fig. 18.6 End-loop stoma formation. The end-loop stoma is brought up 3 cm above the skin surface and sutured in an everting fashion in four quadrants. This is followed by supporting dermal sutures. Illustration © CCF
muscle is bluntly separated to expose the posterior rectus fascia. A linear incision is made through this layer as well as the peritoneum. Throughout the completion of this portion of the procedure, the epigastric vessels can be palpated simulta­neously and avoided. The abdominal wall defect should allow for the passage of two fi ngers, or approximately 2–3-cm breadth, to allow for passage of the conduit without compro­mising the blood supply. A larger area defect may increase the risk of parastomal hernias. The distal end of the conduit, in an isoperistaltic orientation, is brought through the stoma site with care.

End-Loop Nipple Stoma

In the standard end-loop nipple stoma, the distal end of the conduit is brought through the previously prepared stoma opening using Babcock clamps to approximately 3 cm above the skin surface. Four quadrant sutures of 3-0 chro­mic are placed through the dermis edge, the serosa of the conduit well below the skin level, and through the full­thickness edge of the conduit (Fig. 18.6 ). Additional 3-0 chromic sutures are placed between the quadrant sutures to secure the conduit to the dermis. A securing suture of 2-0 Vicryl may be placed to secure the conduit to the inside of the abdominal wall. The proximal end of the conduit and the ureteroileal anastomosis can be covered with the poste­rior peritoneum to assist in minimizing leakage of urine and promote healing.

Turnbull Stoma

The Turnbull stoma may be used in obese patients with a short mesentery [ 7 ] . For this stoma, the distal (efferent) end of the conduit remains stapled closed. A small mesenteric opening should be made in the conduit segment 3 cm from the distal end (Fig. 18.7 ). A umbilical tape is placed through the opening and the antimesenteric side of the loop is brought out through the stoma opening at least 2–3 cm without tension or twisting the conduit. The blind end of the loop is positioned cephalad. A plastic rod replaces the umbilical tape and is secured in place (Fig. 18.8 ). The loop is opened transversely and is matured in the same everting manner as the end-loop stoma.
The Turnbull stoma provides an advantage to use over the end-loop nipple stoma when there is a short, bulky mesentery and thick abdominal wall commonly seen in obese patients. It has less of a tendency for retraction and stenosis; however, parastomal hernias are more commonly associated with the Turnbull stoma [ 8 ] . The end-loop nipple stoma provides for excellent appliance placement and less skin irritation, but stomal stenosis is more common with the end-loop nipple stoma.

Ureteroileal Anastomosis

The principles to consider during creation of the ureteroileal anastomosis include: maintenance of adequate distal ureteral blood supply, the maintenance of a tension-free anastomosis, absence of malignancy in the distal ureter (in cancer cases), and
Fig. 18.7 Turnbull stoma formation. The Turnbull stoma is started by bringing up the distal loop of conduit by placing umbilical tape through the mesentery 3 cm from the distal end. Illustration © CCF
22118 Urinary Stomas
Fig. 18.8 Turnbull stoma completion. A plastic supporting rod replaces the umbilical tape. A myotomy is made transversely and the stoma is matured in an everting fashion. Illustration © CCF
the avoidance of ureteral kinking or twisting. If the stoma site is located on the right lower quadrant of the abdomen, the left ureter is passed under or through the sigmoid mesocolon to the right side. The hole in the sigmoid mesentery is usually made at the level of the sacral promontory; however, it may be more cephalad depending on the length of ureter and to avoid kinking
the ureter. The ureteroileal anastomosis can be made using the Bricker, Wallace, or Lahey Clinic techniques and may be com­pleted before or after the stoma maturation. The authors prefer securing the base of the conduit to the sacral promontory or to the retroperitoneal fi brous tissue after completing the ureteroil­eal anastomosis using 3-0 Vicryl suture (Fig.
18.9 ).