Case Report | Open Access
Madhu Ragupathi, Chirag B. Patel, Diego I. Ramos-Valadez, Eric M. Haas, "Robotic-Assisted Laparoscopic “Salvage” Rectopexy for Recurrent Ileoanal J-Pouch Prolapse", Gastroenterology Research and Practice, vol. 2010, Article ID 790462, 4 pages, 2010. https://doi.org/10.1155/2010/790462
Robotic-Assisted Laparoscopic “Salvage” Rectopexy for Recurrent Ileoanal J-Pouch Prolapse
Total restorative proctocolectomy with ileal pouch-anal anastomosis (RP/IPAA) has become the standard of care for the surgical treatment of ulcerative colitis. Despite its correlation with an excellent quality of life and favorable long-term outcomes, RP/IPAA has been associated with several complications. Prolapse of the ileoanal pouch is a rare and debilitating complication that should be considered in the differential diagnosis of pouch failure. Limited data exist regarding the prevalence and treatment of pouch prolapse. We present the case of a recurrent J-pouch prolapse treated with a novel minimally invasive “salvage” approach involving a robotic-assisted laparoscopic rectopexy with mesh.
Surgical intervention is required in 30%–40% of patients with chronic ulcerative colitis (UC) . Total (restorative) proctocolectomy with ileal pouch-anal anastomosis (RP/IPAA) has become the standard of care for the surgical treatment of intractable UC . Restorative proctocolectoy with IPAA restores bowel continuity with preservation of anorectal continence [3, 4], and is associated with improved quality of life and favorable long-term outcomes [5, 6]. Even so, this procedure has been associated with significant complications of the pouch itself, including pouchitis, stricture, obstruction, and pouch failure [7–9]. Many of these complications require surgical correction, the approaches of which have been well described . However, prolapse of the ileoanal pouch is a rare and debilitating phenomenon following RP/IPAA. Limited experience and data exist with respect to the prevalence and surgical repair of pouch prolapse. We present the case of a recurrent J-pouch prolapse treated with an innovative robotic-assisted laparoscopic “salvage” procedure.
2. Materials and Methods
2.1. Case History
A 24-year-old female presented with an 8-month history of recurrent prolapse of an ileoanal J-pouch in May 2009. Her past medical history was significant for UC diagnosed at age 15. She became recalcitrant to medical therapy and underwent RP/IPAA and diverting ileostomy in 2005. The patient encountered no immediate complications following ileostomy reversal; however, within a year she experienced a sensation of bulging following each bowel movement and was diagnosed with a full-thickness prolapse of her J-pouch. She underwent surgical correction with a trans-abdominal suture repair of the prolapsing segment in 2007. The patient progressed well for almost one year until she presented to our institution with a recurrent pouch prolapse.
The patient reported having 8–10 bowel movements per day and a full-thickness prolapse requiring manual reduction following each bowel movement. These episodes were associated with fecal incontinence and occasionally occurred with micturition. Anorectal examination revealed a patulous anus with diminished sphincter tone. When asked to strain, a full-thickness prolapse encompassing the entire pouch was readily visualized (see Figure 1). Endoscopy of the pouch demonstrated edematous mucosa without evidence of pouchitis. The patient underwent pelvic floor evaluation with anorectal physiologic studies, which indicated internal and external anal sphincter dysfunction with diminished mean manometric pressures of 35–40 mm Hg (normal range: 40–80 mm Hg) and 45–65 mm Hg (normal range: 80–160 mm Hg), respectively.
The patient was first advised to complete a course of pelvic muscle rehabilitation (PMR, modified biofeedback) to optimize her pelvic floor weakness. She was then scheduled for repair using a novel minimally invasive approach involving a robotic-assisted laparoscopic (RALS) rectopexy with mesh. The procedure and possible complications were described to the patient and informed consent was obtained.
2.2. Operative Procedure
The procedure was performed by a board-certified colon and rectal surgeon (E.M.H.) using the da Vinci S-Type Surgical System (Intuitive Surgical, Inc., Sunnyvale, CA). The patient was placed in a modified lithotomy position with 10 degrees of flexion at the hips. A total of five trocars were utilized—a 12-mm camera port, three 8-mm robotic ports and a 5-mm accessory port for the assistant. Laparoscopic exploration revealed multiple abdominal and pelvic adhesions as well as a benign cystic mass in the pelvis. Multiple intraloop small bowel adhesions required careful adhesiolysis to gain access to the pelvis. Extensive ovariolysis was required as both fallopian tubes and ovaries were densely adhered to the prolapsing segment of the pouch. In addition a deep and redundant enterocele was encountered. Ultimately, the presacral plane was entered and the mesentery of the J-pouch was dissected to the level of the levator ani. It was noted during dissection that the mesentery of the pouch was torsioned 180 degrees and adhered to the sac of the enterocele in the anterior plane. Once the pouch mesentery was completely mobilized and returned to anatomical position, a suture rectopexy fastening the mesentery to the presacral fascia was performed. A non-absorbable prolene mesh was used to reinforce the rectopexy (see Figure 2). Care was taken to preserve the autonomic nerves of the pelvis as well as the vasculature of the pouch mesentery.
3. Results and Discussion
The patient underwent robotic-assisted laparoscopic rectopexy without complication and did not require conversion to an open procedure. The robotic operative time was 128 minutes and the estimated blood loss was 200 mL. The patient had an expeditious recovery with return of bowel function, as evidenced by flatus, on postoperative day 2. At that point her diet was advanced, she was changed from intravenous to oral pain medication, and she was able to void following removal of her Foley catheter. She was discharged home on postoperative day 3.
The patient presented to the office for postoperative evaluation at two weeks, six weeks, and three months following surgery. On two-week follow-up she continued to do well with no signs of complications. Repeat anal physiologic studies were performed six weeks following the procedure, and mean manometric pressures of the internal and external anal sphincters had improved to 45–65 mm Hg and 70–80 mm Hg, respectively. At three-month follow-up, she reported an overall excellent response with no further episodes of fecal incontinence or pouch prolapse.
Restorative proctocolectomy with ileal pouch-anal anastomosis is an important treatment modality for patients suffering from refractory UC. Ileoanal pouch prolapse is a rarely reported complication following RP/IPAA. A review of the literature identified a total of 10 published reports of pouch prolapse in the adult population. Extent of prolapse varied from external mucosal or full-thickness prolapse [11–17] to internal intussusception [18, 19]. Some of the treatment modalities reported include fixation of the pouch to the presacral fascia and revision or excision with reconstruction. One report introduced the external pelvic neorectal suspension procedure in which transperineal placement of Permacol mesh was used to suspend the prolapsing segment .
Ehsan et al. estimated the prevalence of ileoanal pouch prolapse through a 2001 survey of the North American membership of the American Society of Colon and Rectal Surgeons . Of 23, 541 procedures reported, a total of 83 patients (0.4%) presented with prolapse-related symptoms (e.g., external prolapse of tissue, straining, seepage, incontinence, and pain). Nearly half (48.2%) of these patients presented within 2 years of pouch construction, with a slight trend toward reduced incidence as more time had elapsed after surgery. Fifty-two of the patients (62.7%) underwent surgical correction through transanal, transabdominal or combined approaches; six of these (11%) involved mesh repair. Pouch salvage was achieved in 49 cases (94%), with pouch reconstruction being necessary in two cases and conversion to ileostomy in one case. Ehsan et al. identified several principal patterns and symptoms of presentation, and demonstrated the importance of considering pouch prolapse when evaluating potential causes of failure.
We report a novel robotic-assisted surgical approach in the treatment of a patient who presented with a J-pouch prolapse that had failed a previous suture rectopexy repair at another institution. Robotic surgery is an innovative technique requiring a high degree of technical training to overcome several of the challenges of this approach, most notably the loss of tactile and tensile feedback. Furthermore, a learning curve is required to develop understanding of the spatial relationships of the external robotic arms to avoid clashing of the instruments and inadvertent injury to the tissues. We chose a robotic approach as this technology facilitates the freedom of movement of an open surgical procedure while maintaining a minimally invasive platform.
This surgical system provides a three-dimensional field of view, 10-fold magnification, and camera stabilization [22, 23], which optimized visualization in this re-operative field. In addition, the advanced robotic instrumentation with seven degrees of freedom of motion, tremor elimination and motion scaling  facilitated precise dissection in the previously operated presacral plane. Despite encountering dense small bowel adhesions, a large redundant enterocele, and torsioned pouch mesentery, we found this surgical approach most useful in maintaining the proper planes of dissection while preserving the critical structures of the pelvis (i.e. internal reproductive organs, ureters and vasculature). In light of the recurrent nature of the prolapse, we chose to reinforce the suture rectopexy with a non-absorbable prolene mesh.
We describe the case of a recurrent prolapsed J-pouch treated through a novel RALS “salvage” procedure. Due to the numerous benefits offered by this innovative system, we have been performing robotic-assisted surgery specifically for various colorectal procedures in which pelvic dissection is necessary. With current levels of experience limited to familiarity from case reports, ileal pouch prolapse may be overlooked in the differential diagnosis of pouch dysfunction. Robotic-assisted laparoscopic rectopexy with mesh proved to be feasible and safe for the correction of J-pouch prolapse.
IPAA (ileal pouch-anal anastomosis), PMR (pelvic muscle rehabilitation), RP (restorative proctocolectomy), RALS (robotic-assisted laparoscopic surgery), UC (ulcerative colitis).
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Copyright © 2010 Madhu Ragupathi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.