Adenocarcinoma at a strictureplasty site in Crohn's disease: report of a case

Historical Perspectives: Malignancy in Crohn's Disease and Ulcerative Colitis

While both Crohn' disease (CD) and ulcerative colitis (UC) are known to predispose patients to certain intestinal malignancies, the exact mechanism of carcinogenesis remains unknown and optimal screening guidelines have not been established. This article will explore the history of our understanding of intestinal malignancy in inflammatory bowel disease (IBD). To contextualize the medical community's difficulty in linking each condition to cancer, the first section will review the discovery of CD and UC. Next, we discuss early attempts to define IBD's relationship with small bowel adenocarcinoma and colorectal cancer. The article concludes with a review of each disease's surgical history and the ways in which certain procedures produced poor oncologic outcomes.

Preoperative Predictors of Neoplasia in Patients Undergoing Small Bowel Resection for Complicated Crohn’s Disease: A Multicentre Case-Control Study

Crohn’s disease (CD) is associated with an increased risk of small bowel neoplasia (SBN). We aimed to assess preoperative predictors of SBN in CD patients. We conducted a retrospective case-control study including CD patients who underwent surgery: cases were diagnosed with SBN on histopathological analysis and controls had no neoplasia. Preoperative cross-sectional imaging was reviewed by a panel of blinded expert radiologists. Fifty cases were matched to one hundred and fifty consecutive controls. In multivariable analysis, predictors of SBN were age ≥ 50 years (OR = 28, 95% CI = 5.05–206), median CD duration ≥ 17.5 years (OR = 4.25, 95% CI = 1.33–14.3), and surgery for stricture (OR = 5.84, 95% CI = 1.27–35.4). The predictors of small bowel adenocarcinoma were age ≥ 50 years (OR = 5.14, 95% CI = 2.12–12.7), CD duration ≥ 15 years (OR = 5.65, 95% CI = 2.33–14.3), and digestive wall thickening > 8 mm (OR = 3.79, 95% CI = 1.45–11.3). A predictive score based on the aforementioned factors was constructed. Almost 73.7% of patients with a high score had SBA. Old age, long small bowel CD duration, and stricture predicted the presence of SBN, particularly adenocarcinoma when patients have digestive wall thickening > 8 mm on preoperative imaging.

Managing Stricturing Crohn's Disease: Resect? Strictureplasty? Dilate?

Crohn's disease (CD) is a pan-intestinal disease of the gastrointestinal tract characterized by inflammatory, penetrating, and fibrostenotic phenotypes. Fibrostenotic stricture formation, without inflammatory or penetrating disease, is a common complication in CD, primarily affecting the small intestine and leading to small bowel obstruction. Because there is no medical therapy that prevents or reverses stricturing disease, endoscopic and surgical treatments are the mainstays of treatment, indicated to palliate symptoms and treat the complications. Endoscopic approaches include dilation, stricturotomy, and endoscopic stenting. Surgical options include resection, intestinal bypass, and various strictureplasty techniques. In this article, we will focus on the treatment of stricturing CD: specifically, the considerations important in choosing between different treatment options and technical tips to deal with complicated disease.

Inflammatory bowel disease and risk of small bowel cancer: a binational population-based cohort study from Denmark and Sweden

OBJECTIVE

Crohn's disease (CD) is associated with increased risk of small bowel cancer (SBC), but previous studies have been small. We aimed to examine the risk of incident SBC and death from SBC in patients with inflammatory bowel disease (IBD).

DESIGN

In a binational, population-based cohort study from Sweden and Denmark of patients with IBD during 1969-2017 and matched reference individuals from the general population, we evaluated the risk of incident SBC and death from SBC. Cox regression was used to estimate adjusted hazard ratios (aHRs).

RESULTS

We identified 161 896 individuals with IBD (CD: 47 370; UC: 97 515; unclassified IBD: 17 011). During follow-up, 237 cases of SBC were diagnosed in patients with IBD (CD: 24.4/100 000 person-years; UC: 5.88/100 000 person-years), compared with 640 cases in reference individuals (2.81/100 000 person-years and 3.32/100 000 person-years, respectively). This corresponded to one extra case of SBC in 385 patients with CD and one extra case in 500 patients with UC, followed up for 10 years. The aHR for incident SBC was 9.09 (95% CI 7.34 to 11.3) in CD and 1.85 (95% CI 1.43 to 2.39) in UC. Excluding the first year after an IBD diagnosis, the aHRs for incident SBC decreased to 4.96 in CD and 1.69 in UC. Among patients with CD, HRs were independently highest for recently diagnosed, childhood-onset, ileal and stricturing CD. The relative hazard of SBC-related death was increased in both patients with CD (aHR 6.59, 95% CI 4.74 to 9.15) and patients with UC (aHR 1.57; 95% CI 1.07 to 2.32).

CONCLUSION

SBC and death from SBC were more common in patients with IBD, particularly among patients with CD, although absolute risks were low.

Short- and long-term outcomes of strictureplasty for obstructive Crohn's disease

AIM

To evaluate the frequency and outcome of strictureplasty in the era of biologicals and to compare patients operated on by strictureplasty alone, resection alone or a combination of both.

METHOD

A retrospective review of all patients undergoing strictureplasty for obstructing jejunoileal Crohn's disease (CD) in Oxford between 2004 and 2016 was conducted. For comparison, a cohort of CD patients with resection only during 2009 and 2010 was included.

RESULTS

In all, 225 strictureplasties were performed during 85 operations, 37 of them in isolation and 48 with simultaneous resection. Another 82 procedures involved resection only; these patients had shorter disease duration, fewer previous operations and longer bowel preoperatively. The frequency of strictureplasty procedures did not alter during the study period and was similar to that in the preceding 25 years. There was no postoperative mortality. One patient required re-laparotomy for a leak after strictureplasty. None developed cancer. The 5-year reoperation rate for recurrent obstruction was 22% (95% CI 12-39) for resection alone, 30% (17-52) for strictureplasty alone and 42% (27-61) for strictureplasty and resection (log rank P = 0.038). Young age was a risk factor for surgical recurrence (log rank P = 0.006).

CONCLUSION

The use of strictureplasty in CD has not changed significantly since the widespread introduction of biologicals. Surgical morbidity remains low. The risk of recurrent strictures is high and young age is a risk factor. In this study, strictureplasty alone was associated with a lower rate of reoperation compared with strictureplasty with resection.

Strictureplasty in Complex Crohn's Disease: Beyond the Basics

The strictureplasty operation was originally adopted for use in selected patients with Crohn's disease to allow for bowel conservation. The procedure and its usage have evolved over time as experience and confidence with the technique has grown. The short- and long-term outcomes of strictureplasty compared with resection attest to its safety and durable efficacy.

Endoscopic management of Crohn's strictures

Symptomatic intestinal strictures develop in more than one third of patients with Crohn's disease (CD) within 10 years of disease onset. Strictures can be inflammatory, fibrotic or mixed and result in a significant decline in quality of life, frequently requiring surgery for palliation of symptoms. Patients under the age of 40 with perianal disease are more likely to suffer from disabling ileocolonic disease thus may have a greater risk for fibrostenotic strictures. Treatment options for fibrostenotic strictures are limited to endoscopic and surgical therapy. Endoscopic balloon dilatation (EBD) appears to be a safe, less invasive and effective alternative modality to replace or defer surgery. Serious complications are rare and occur in less than 3% of procedures. For non-complex strictures without adjacent fistulizaation or perforation that are less than 5 cm in length, EBD should be considered as first-line therapy. The aim of this review is to present the current literature on the endoscopic management of small bowel and colonic strictures in CD, which includes balloon dilatation, adjuvant techniques of intralesional injection of steroids and anti-tumor necrosis factor, and metal stent insertion. Short and long-term outcomes, complications and safety of EBD will be discussed.

Inflammatory Bowel Disease and Small Bowel Cancer Risk, Clinical Characteristics, and Histopathology: A Population-Based Study

BACKGROUND & AIMS

Inflammatory bowel disease (IBD) may increase risk of small bowel cancer (SBC). However, little is known of the characteristics and features of IBD-SBC, due to a low number of cases worldwide. We performed a population-based study of IBD and SBC to calculate risk and increase our understanding of clinical characteristics and histopathological and molecular features.

METHODS

The study population consisted of all individuals aged 16 years or older living in Denmark during 1978-2010. Through linkage between national registers and subsequent scrutiny of medical records and pathology descriptions, we identified 40 cases of IBD-SBC. Risk was calculated by standardized incidence ratio (SIR) (observed/expected); patient characteristics were derived from medical files, and surgery specimens were obtained from hospitals nationwide for histopathological and molecular analyses.

RESULTS

During 241,620 person-years of follow-up, 23 patients with Crohn's disease developed small bowel adenocarcinoma (SIR, 14.38; 95% confidence interval, 8.78-22.20) and 9 developed neuroendocrine tumors (SIR, 6.83; 95% confidence interval, 3.13-12.97). No significantly increased risk of SBC was found among patients with ulcerative colitis. Most patients with SBC had moderate-to-severe Crohn's disease with small bowel and upper gastrointestinal involvement. Assessment of surgical specimens of small bowel adenocarcinomas revealed a clear transition from inflammation to dysplasia and cancer, whereas no tumors had evidence of microsatellite instability.

CONCLUSIONS

In a population-based study of patients in Denmark with IBD and SBC, we found risk of adenocarcinomas and neuroendocrine tumors to be increased among persons with Crohn's disease. Most patients with IBD-SBC had extensive IBD of moderate-to-severe activity. Adenocarcinomas appeared to develop via an inflammation-dysplasia-carcinoma pathway, but differed from IBD-related colorectal adenocarcinomas in their molecular features.

Intestinal and Nonintestinal Cancer Risks for Patients with Crohn's Disease

Crohn's disease (CD) is a chronic inflammatory disease that confers a higher risk of cancer than in the general population. New, large, population-based studies in the past decade show that patients with CD are at higher risk of colorectal, small bowel, melanoma, and cervical cancer. Patients who use thiopurines are at additional risk of development of lymphoma and nonmelanoma skin cancer. Preventive surveillance for cancers of the colorectum, skin, and uterine cervix is advised.

Modified Side-To-Side Isoperistaltic Strictureplasty over the Ileocaecal Valve: An Alternative to Ileocaecal Resection in Extensive Terminal Ileal Crohn's Disease

BACKGROUND

A modified Michelassi strictureplasty over the ileocaecal valve or ileocolic anastomosis could be an alternative to ileocaecal resection. This study assessed the outcome of the modified Michelassi strictureplasty in patients with extensive stenotic terminal ileal Crohn's disease [CD].

METHODS

This type of strictureplasty was proposed to all patients with an extensive strictured [neo-] terminal ileal segment [> 20 cm]. Short- and long-term outcome data were retrieved from a prospectively maintained database. Safety and medium-term efficacy were studied, using both postoperative magnetic resonance enterography [MRE] and ileocolonoscopy at 6 months.

RESULTS

Between June 2009 and September 2014, 29 CD patients had a modified strictureplasty [male 9/29, median age 38 [range: 16-64] years]. The median length of strictureplasty was 50 [27-110] cm. Twelve patients underwent a total of 30 additional procedures during surgery, mainly additional short strictureplasties, but also segmental resections. The majority had a laparoscopic-assisted procedure. Median length of hospital stay was 9 [6-17] days. Two patients had an early rescue procedure to oversew a small anastomotic leak. MRE and ileocolonoscopy at follow-up showed a remarkable regression of inflammation and bowel wall thickness. Clinical recurrence, necessitating initiation or modification of medical therapy, and surgical recurrence were reported in 11 and 1 patient after a median follow-up of 21 [1-54] months, respectively.

CONCLUSION

A modified long Michelassi strictureplasty appears to be safe in patients with extensive stricturing Crohn's ileitis. Significant mucosal and bowel wall healing is observed and suggests that clearance of microbial stasis may play a role in this process.

Therapeutic Armamentarium for Stricturing Crohn's Disease: Medical Versus Endoscopic Versus Surgical Approaches

One-third of patients with Crohn's disease (CD) present as stricturing phenotype characterized by progressive luminal narrowing and obstructive symptoms. The diagnosis and management of these patients have been intriguing and challenging. Immunomodulators and biologics have been successfully used in treating inflammatory and fistulizing CD. There are issues of efficacy and safety of biological agents in treating strictures in CD. Rapid mucosal healing from potent biological agents may predispose patients to the development of new strictures or worsening of existing strictures. On the other hand, strictures constitute one-fifth of the reasons for surgery in patients with CD. Disease recurrence is common at or proximal to the anastomotic site with the majority of these patients developing new endoscopic lesions within 1 year of surgery. The progressive nature of the disease with repetitive cycle of inflammation and stricture formation results in repeated surgery, with a risk of small bowel syndrome. There is considerable quest for bowel conserving endoscopic and surgical strategies. Endoscopic balloon dilation and stricturoplasty have emerged as valid alternatives to resection. Endoscopic balloon dilation has been shown to be feasible, safe, and effective for the short primary or anastomotic strictures. However, repeated dilations are often needed, and long-term outcomes of endoscopic balloon dilation remain to be investigated. The introduction of stricturoplasty has added another dimension to bowel saving strategy. Although postoperative recurrence rate after stricturoplasty is comparable with surgical resection, there are concerns for increased risk of malignancy in preserved bowel. Laparoscopic surgery has widely been performed with similar outcomes to open approach with fewer complications, quicker recovery, better cosmesis, and lower cost. All of these issues should be considered by physicians involved in the management of patients with stricturing CD.

Surgical treatment of complex small bowel Crohn disease

INTRODUCTION

The clinical presentations of Crohn disease of the small bowel vary from low to high complexity. Understanding the complexity of Crohn disease of the small bowel is important for the surgeon and the gastroenterologist caring for the patient and may be relevant for clinical research as a way to compare outcomes. Here, we present a categorization of complex small bowel Crohn disease and review its surgical treatment as a potential initial step toward the establishment of a definition of complex disease.

RESULTS

The complexity of small bowel Crohn disease can be sorted into several categories: technical challenges, namely, fistulae, abscesses, bowel or ureteral obstruction, hemorrhage, cancer and thickened mesentery; extensive disease; the presence of short gut; a history of prolonged use of medications, particularly steroids, immunomodulators, and biological agents; and a high risk of recurrence.

CONCLUSIONS

Although the principles of modern surgical treatment of Crohn disease have evolved to bowel conservation such as strictureplasty techniques and limited resection margins, such practices by themselves are often not sufficient for the management of complex small bowel Crohn disease. This manuscript reviews each category of complex small bowel Crohn disease, with special emphasis on appropriate surgical strategy.

Small bowel adenocarcinoma and Crohn's disease: Any further ahead than 50 years ago?

This review of the literature on small bowel carcinoma associated with Crohn’s disease specifically addresses the incidence, risk factors, and protective factors which have been identified. It also reviews the clinical presentation, the current modalities of diagnosis, the pathology, treatment, and surveillance. Finally, the prognosis and future direction are addressed. Our experience with small bowel adenocarcinoma in Crohn’s disease is reported. Readers will be provided with a better understanding of this rare and often poorly recognized complication of Crohn’s disease.

Non-colorectal intestinal tract carcinomas in inflammatory bowel disease: results of the 3rd ECCO Pathogenesis Scientific Workshop (II)

Patients with inflammatory bowel diseases (IBD) have an excess risk of certain gastrointestinal cancers. Much work has focused on colon cancer in IBD patients, but comparatively less is known about other more rare cancers. The European Crohn's and Colitis Organization established a pathogenesis workshop to review what is known about these cancers and formulate proposals for future studies to address the most important knowledge gaps. This article reviews the current state of knowledge about small bowel adenocarcinoma, ileo-anal pouch and rectal cuff cancer, and anal/perianal fistula cancers in IBD patients.

Surgery and diagnostic imaging in abdominal Crohn's disease

Surgery is well-established option for the treatment of Crohn's disease that is refractory to medical therapy and for complications of the disease, including strictures, fistulas, abscesses, bleeding that cannot be controlled endoscopically, and neoplastic degeneration. For a condition like Crohn's disease, where medical management is the rule, other indications for surgery are considered controversial, because the therapeutic effects of surgery are limited to the resolution of complications and the rate of recurrence is high, especially at sites of the surgical anastomosis. In the authors' opinion, however, surgery should not be considered a last-resort treatment: in a variety of situations, it should be regarded as an appropriate solution for managing this disease. Based on a review of the literature and their own experience, the authors examine some of the possibilities for surgical interventions in Crohn's disease and the roles played in these cases by diagnostic imaging modalities.

How I do it: Side-to-side isoperistaltic strictureplasty for extensive Crohn's disease

INTRODUCTION

Bowel-sparing surgical techniques, such as the Heineke-Mikulicz and the Finney strictureplasty, have been proposed as an alternative to lengthy intestinal resection in the treatment of small bowel strictures in Crohn's disease. However, these conventional strictureplasty techniques lend themselves poorly to cases of multiple short strictures closely clustered over a lengthy small bowel segment.

DISCUSSION

In this article, we present the surgical technique of the side-to-side isoperistaltic strictureplasty, which is optimal in addressing these specific situations.

Endoscopic assessment of inflammatory bowel disease: colonoscopy/esophagogastroduodenoscopy

Endoscopy plays an important role in the initial diagnosis of IBD, including the evaluation of disease severity, activity, and extent. The implications of complete mucosal healing further confirm the function of endoscopy in the follow-up of IBD patients. The use of therapeutic endoscopy, for example stricture dilatation, can avoid the need for bowel resection. Modalities such as capsule endoscopy, EUS, NBI, CE, and other emerging techniques are likely to have an increasing role in the management of IBD, particularly in the area of dysplasia surveillance and treatment.

The surgical options and management of intestinal Crohn's disease

Crohn's disease (CD) is a pan-gastrointestinal illness. It is notorious for recurrences which can develop in any segment of the gastrointestinal tract. There are many indications and surgical options for intestinal Crohn's disease . We discuss these options based on the current literature. It is important to note however, that operative treatment is based on the correct diagnosis, clinical presentation, sphincter function and patient motivation. Early and timely referral to a surgeon is paramount. The goals of continued medical therapy need to be clearly defined as do the criteria for referral to surgery.

Side-to-side-to-end strictureplasty for Crohn's disease

PURPOSE

Side-to-side strictureplasty is a useful procedure for preserving the bowel in patients with Crohn's disease. However, bowel resection is required in some patients, and diseased proximal bowel and disease-free distal bowel exist after resection. We performed a modified new technique called side-to-side-to-end strictureplasty.

METHODS

Four patients with Crohn's disease underwent this procedure. After resection of the diseased bowel that was not suitable for strictureplasty, side-to-side strictureplasty was performed with use of the proximal diseased loop. Thereafter, the distal end of the side-to-side stricture was anastomosed to the distal disease-free bowel in a side-to-side-to-end manner.

RESULTS

The length of the small intestine requiring surgical intervention was 69.8 +/- 26.4 (mean +/- standard deviation) cm, and the length of the small intestine necessitating resection was 31.8 +/- 12.6 cm. Side-to-side stricture was performed by use of 48.8 +/- 20.2 cm of the diseased proximal bowel, which was anastomosed to the disease-free distal bowel. Intra-abdominal abscess, which was not associated with this procedure, was observed in one patient, but was treated by drainage. The recoveries of all four patients were uneventful, without recurrence, after a follow-up of 21.5 +/- 16.2 months.

CONCLUSIONS

Side-to-side-to-end strictureplasty may be a useful procedure when diseased proximal bowel and disease-free distal bowel are present after bowel resection in patients with Crohn's disease.

Prospective study of long-term results and prognostic factors after conservative surgery for small bowel Crohn's disease

BACKGROUND & AIMS

Several bowel-sparing techniques have been proposed for treating patients with CD, but there have been no prospective studies analyzing risk factors and long-term outcome. We prospectively evaluated safety and long-term efficacy of conservative surgery for patients with complicated CD.

METHODS

From 1993-2007, 393 of 502 consecutive patients underwent surgery for complicated CD of the small bowel. Those with colonic involvement were excluded. The Student t test, chi(2) test, Kaplan-Meier estimates, and Cox proportional hazard model were used to analyze postoperative complications and long-term outcome.

RESULTS

A total of 865 jejunoileal segments underwent 318 small bowel resections and 367 strictureplasties (either classic or nonconventional). There were no deaths; the complication rate was 5.6%, and the cumulative 10-year recurrence rate was 35%. None of the prognostic factors were correlated with postoperative complications. Younger age, an upper jejunoileal location, stricturing behavior, and small-bowel wall thickening 12 months after surgery showed hazard ratios of 2.4 (95% confidence interval [CI], 1-5.4; P = .03), 2.5 (95% CI, 1.3-4.7; P = .004), 2.2 (95% CI, 1.1-4.1; P = .01), and 4.5 (95% CI, 2.3-8.6; P = .000), respectively. Immunomodulator therapy failed to reduce long-term surgical recurrence.

CONCLUSIONS

Young patients with extended and stricturing disease are at high risk for disease recurrence after surgery. Bowel wall thickening was a reliable prognostic factor for these patients. Conservative surgery is safe and effective in treating patients with jejunoileal CD and should be considered as the first-line surgical treatment, preventing the risk of short bowel syndrome caused by repeated resections.

Small bowel adenocarcinoma in Crohn's disease

Small bowel neoplastic disease is a rare but dreaded occurrence in Crohn's disease (CD) and the diagnosis is often disguised by nonspecific and varied presenting symptoms mimicking active or obstructive CD. As such, the diagnosis is all too often delayed, typically detected at a late stage, and with a poor prognosis. CD has become a well-recognized risk factor for the development of small bowel adenocarcinoma. The data, however, are limited and based on case reports, retrospective studies, and review of the literature.

Small-bowel adenocarcinoma in patient with Crohn's disease: report of a series of three cases

Patients affected with Crohn's disease (CD) have a recognized, but low relative risk of developing small-bowel adenocarcinoma (SBA). In fact, SBA develops in 2.2% of patients who have long-standing CD and it is seldom diagnosed preoperatively because of its rarity. A retrospective analysis of all cases of SBA in CD patients since 1980 was carried out in Rouen University Hospital. Three patients with known or unknown CD who presented with SBA with long-term follow-up were analysed. In our first case, the occlusive syndrome revealed SBA and CD simultaneously. Most ileal carcinomas in CD are located in strictures and are often incidentally diagnosed postoperatively, as in our three cases. Digestive surgeons and gastroenterologists must be aware that the diagnosis of SBA in CD is often made fortuitously on histological examination after surgical resection for an occlusive syndrome. Failure to detect SBA in patients with CD results in late diagnosis, with poor survival.

[Crohn's disease small bowel strictureplasties: early and late results]

BACKGROUND

Strictureplasty is an alternative surgical procedure for Crohn's disease, particulary in patients with previous resections or many intestinal stenosis.

AIM

To analyze surgical complications and clinical follow-up in patients submitted to strictureplasty secondary to Crohn's disease.

METHODS

Twenty-eight patients (57.1% male, mean age 33.3 years, range 16-54 years) with Crohn's disease and intestinal stenosis (small bowel, ileocecal region and ileocolic anastomosis) were submitted to strictureplasty, at one institution, between September 1991 and May 2004. Thirteen patients had previous intestinal resections. The mean follow-up was 58.1 months. A total of 116 strictureplasties were done (94 Heineke-Mikulicz--81%, 15 Finney--13%, seven side-to-side ileocolic strictureplasty--6%). Three patients were submitted to strictureplasty at two different surgical procedures and two in three procedures.

RESULTS

Regarding to strictureplasty, postoperative complication rate was 25% and mortality was 3.6%. Early local complication rate was 57.1%, with three suture leaks (10.7%) and late complication was present in two patients, both with incisional hernial and enterocutaneous fistulas (28.6%). Patients remained hospitalized during a medium time of 12.4 days. Clinical and surgical recurrence rates were 63% and 41%, respectively. Among the patients submitted to another surgery, two patients had two more operations and one had three. Recurrence rate at strictureplasty site was observed in 3.5%, being Finney technique the commonest one. Presently, 19 patients had been asymptomatic with the majority of them under medical therapy.

CONCLUSION

Strictureplasties have low complication rates, in spite of having been done at compromised site, with long term pain relief. Considering the clinical course of Crohn's disease, with many patients being submitted to intestinal resections, strictureplasties should be considered as an effective surgical treatment to spare long intestinal resections.

Strictureplasty

Strictureplasty in patients with Crohn's disease is an option in the colorectal surgeon's armamentarium for fibrostenotic obstructive disease. Common types include the Heineke-Mikulicz strictureplasty, Finney strictureplasty, and the side-to-side isoperistaltic strictureplasty. The procedure has potential for significant morbidity; therefore, it should be chosen for the patient carefully. Strictureplasty complements bowel resection in Crohn's disease; it is an excellent procedure to reduce the risk of developing short-bowel syndrome and its associated complications.

Safety and efficacy of strictureplasty for Crohn's disease: a systematic review and meta-analysis

PURPOSE

This study was designed to review safety and efficacy of strictureplasty for Crohn's disease.

METHODS

A literature search was performed to identify studies published between 1975 and 2005 that reported the outcome of strictureplasty. Systematic review was performed on the following subjects separately: 1) overall experience of strictureplasty; 2) postoperative complications; 3) postoperative recurrence and site of recurrence; 4) factors affecting postoperative complications and recurrence; 5) short-bowel syndrome; and 6) cancer risk. Meta-analysis of recurrence rate after strictureplasty was performed by using random-effect model and meta-regressive techniques.

RESULTS

A total of 1,112 patients who underwent 3,259 strictureplasties (Heineke-Mikulicz, 81 percent; Finney, 10 percent; side-to-side isoperistaltic, 5 percent) were identified. The sites of strictureplasty were jejunum and/or ileum (94 percent), previous anastomosis (4 percent), duodenum (1 percent), and colon (1 percent). After jejunoileal strictureplasty, including ileocolonic strictureplasty, septic complications (leak/fistula/abscess) occurred in 4 percent of patients. Overall surgical recurrence was 23 percent (95 percent confidence interval, 17-30 percent). Using meta-regressive analysis, the five-year recurrence rate after strictureplasty was 28 percent. In 90 percent of patients, recurrence occurred at nonstrictureplasty sites, and the site-specific recurrence rate was 3 percent. Two patients developed adenocarcinoma at the site of previous jejunoileal strictureplasty. The experience of duodenal or colonic strictureplasty was limited.

CONCLUSIONS

Strictureplasty is a safe and effective procedure for jejunoileal Crohn's disease, including ileocolonic recurrence, and it has the advantage of protecting against further small bowel loss. However, the place for strictureplasty is less well defined in duodenal and colonic diseases.

Operative management of small bowel Crohn's disease

Despite advances in medical treatment, most patients who have Crohn's disease of the small intestine need surgery at some point during the course of their disease. Surgery is currently indicated for intractable disease and complications of the disease (strictures, abscesses, fistulas, hemorrhage). There is increasing interest in nonsurgical and minimal access strategies of dealing with complicated disease, however. These new approaches may enable postponement of surgery to a more favorable time, or conversion of a two-stage procedure involving a stoma to a one-stage resection with anastomosis. A continuing challenge is prevention of disease recurrence postoperatively.

Adenocarcinoma of the small bowel arising from a previous strictureplasty for Crohn's disease: report of a case

Small-bowel adenocarcinoma is an uncommon tumor, comprising<2 percent of all gastrointestinal tract malignancies. These tumors are known to occur in association with Crohn's disease. To date, there have been only two documented cases of adenocarcinoma arising at the site of previous strictureplasty reported in the literature. We report the third such case in a patient with no other premalignant conditions affecting the small bowel and question whether we may see an increasing trend in this type of presentation.

Long-term follow-up of strictureplasty for Crohn's disease

BACKGROUND

Strictureplasty is an effective means of alleviating obstructive Crohn's disease while conserving bowel length. The aim of this study was to establish long-term outcomes of strictureplasty.

METHODS

Between 1978 and 2003, 479 strictureplasties were performed in 100 patients during 159 operations. Information on Crohn's disease, medical therapy, laboratory indices, surgical details, complication rates and outcomes was recorded. The primary endpoint was abdominal reoperation.

RESULTS

Mean follow-up was 85.1 (range 0.2-240.9) months. The overall morbidity rate was 22.6 per cent, with septic complications in 11.3 per cent, obstruction in 4.4 per cent and gastrointestinal haemorrhage in 3.8 per cent. The 30-day mortality rate was 0.6 per cent and the procedure-related series mortality rate 3.0 per cent. Perioperative parenteral nutrition was the only marker for morbidity (P < 0.001). Reoperation rates were 52 per cent at a mean of 40.2 (range 0.2-205.8) months after a first, 56 per cent at 26.1 (range 3.5-63.5) months after a second, 86 per cent at 27.4 (range 1.4-74.5) months after a third, and 62.5 per cent at 25.9 (range 7.3-70.5) months following a fourth strictureplasty procedure. The major risk factor for reoperation was young age (P < 0.001).

CONCLUSION

Long-term follow-up has confirmed the safety of strictureplasty in Crohn's disease. Morbidity is appreciable, although the surgical mortality rate is low. Reoperation rates are comparable following first and repeat strictureplasty procedures.

Combination chemotherapy in advanced small bowel adenocarcinoma

OBJECTIVE

To assess the efficacy of 5-fluorouracil (5-FU) and either platinum compounds or irinotecan in patients with advanced small bowel adenocarcinoma (SBA), for whom data on the efficacy of chemotherapy are scarce.

METHODS

We reviewed data on all patients with advanced SBA who received chemotherapy over a 9-year period at our institution.

RESULTS

Twenty patients with advanced SBA received a median of 6 cycles (range 2-15) of chemotherapy with 5-FU and either cisplatin (n=15), carboplatin (n=2), or oxaliplatin (n=3). The overall response rate was 21%, and median progression-free and overall survival 8 and 14 months, respectively. Toxicity was moderate. Second-line chemotherapy with 5-FU and irinotecan resulted in disease stabilization in 4 (50%) of 8 patients (median progression-free survival: 5 months), and in a biological complete response in another patient with non-measurable peritoneal carcinomatosis, allowing surgical cytoreduction surgery and hyperthermic intraperitoneal chemotherapy. No tumor response or disease stabilization was seen among the patients who received protracted venous infusion of 5-FU (n=4) or infusional 5-FU and cisplatin (n=1) as second-line chemotherapy.

CONCLUSION

Chemotherapy with 5-FU and platinum compounds seems effective and well-tolerated in patients with advanced SBA. 5-FU-irinotecan combination chemotherapy deserves further investigation in the first-line setting.

Strictureplasty

BACKGROUND

Advances in the use of bowel-sparing surgery for Crohn's disease have led to the development of strictureplasty as an important technique to conserve small bowel length and reduce morbidity associated with malabsorption.

METHODS

A literature review of long-term studies on strictureplasty was undertaken, and evidence of its safety and efficacy was evaluated.

RESULTS

The safety and efficacy of strictureplasty is confirmed in retrospective studies carried out over a period of 5-10 years, particularly when employed in patients at risk of short bowel syndrome, but certain questions regarding bowel function and disease activity after surgery remain unanswered. There is also concern that diseased tissue is left in situ after strictureplasty; this tissue has the potential for malignant transformation in the long term.

CONCLUSION

Strictureplasty has been used in surgery for Crohn's disease for the past 25 years. Studies have proven its efficacy in the treatment of carefully selected patients at risk of malabsorption owing to short bowel syndrome.

Long strictureplasty is as safe and effective as short strictureplasty in small-bowel Crohn's disease

BACKGROUND

For the past 20 years it has been shown that intestinal strictureplasty is safe and effective in the management of short strictureplasty. Long strictureplasty (> 20 cm) may be an alternative to resection in some patients, especially in diffuse disease or after previous extensive resections. We reviewed the outcome of long strictureplasty for Crohn's Disease, to examine safety and recurrence rates, compared with conventional short strictureplasty.

METHODS

Sixty-two patients have undergone single strictureplasty for jejunoileal Crohn's disease since 1974. Median follow-up was 121 (range 7-253) months. Twenty-one operations involved a single long strictureplasty, and 41 operations had a single short strictureplasty.

RESULTS

No significant differences were identified between the groups. The postoperative complications in long strictureplasty included 2 abscesses only and after short strictureplasty there was one anastomotic leak and one postoperative abscess. The median hospital stay was 10 days after long strictureplasty and 9 days after short strictureplasty. Three-, 5- and 10-year disease-free rates for long and short strictureplasty, respectively, were 3-year 80.4% and 62.1%; 5-year 55.2% and 49.8% and 10-year 49.1% and 33.5% (NS).

CONCLUSIONS

These data indicate that long strictureplasty is safe and produces equivalent results to conventional (short) strictureplasty.

Indications and results of side-to-side isoperistaltic strictureplasty in Crohn's disease

PURPOSE

Strictureplasty has commonly been used for short stenotic tracts, but it has rarely been applied to stenoses longer than 10 cm. Michelassi proposed a side-to-side isoperistaltic strictureplasty for single or multiple strictures that affected long bowel tracts. The experience and results obtained to date with this type of strictureplasty are limited. We therefore decided to review the cases in which we performed this procedure.

METHODS

Thirty-one patients, aged 21 to 66 years, underwent this operation between August 1996 and October 2002. Indications for surgery included subocclusion in 22 patients, malnutrition in 9 patients, and fistula or abscess in 6 patients. Two side-to-side isoperistaltic strictureplasties have been performed in jejunum, 6 in jejunum-ileum, 16 in the proximal ileum, 1 in terminal ileum, and 6 in the ileo-cecal tract.

RESULTS

The average length of side-to-side isoperistaltic strictureplasty as 32.1 cm (range, 10-54 cm). Sixteen patients also underwent concomitant bowel resection and 17 patients have received additional strictureplasty. There was no perioperative mortality, nor were there any postoperative complications requiring reoperation. In all patients intestinal occlusion and malnutrition were resolved. Decrease of activity indices was observed in 62.3 percent of patients within 6 months after surgery. At an average follow-up of 26.4 months, six patients required reoperation, but in only one of them did the recurrence involve a previous strictureplasty site. In that case the side-to-side isoperistaltic strictureplasty was soft and was without signs of inflammation or stenosis.

CONCLUSIONS

Side-to-side isoperistaltic strictureplasty seems to provide a technical solution leading to improvement when long intestinal inflamed tract are treated. Longer follow-up and larger experience is needed to validate this observation.

Surgical treatment of inflammatory bowel disease

Appropriate surgical management of Crohn disease is predicated on multiple variables, but stricturoplasty is generally reserved for small bowel disease, whereas resection is utilized in ileocolonic inflammation and favored for large bowel disease. Laparoscopic resection is becoming increasingly useful and justified for ileocolic resections, and segmental resection should be strongly considered for limited large bowel inflammation. Some centers are also using a laparoscopic approach for the surgical treatment of acute or chronic ulcerative colitis, although the benefits are less apparent. Proctocolectomy with ileostomy or ileal pouch-anal anastomosis returns the patient's quality of life to a level comparable to that enjoyed by the general population. Creation of a pouch is performed in most instances, but early complications may warrant pouch revision and later complications, such as pouchitis, can mandate pouch excision.

Primary closure of complicated perineal wounds with myocutaneous and fasciocutaneous flaps after proctectomy for Crohn's disease

BACKGROUND

The purpose of this study is to detail the use of advanced tissue transfer techniques to achieve primary closure of the perineal wound after proctectomy for Crohn's disease.

METHODS

Between October 1984 and March 2000, we performed proctectomy with permanent intestinal stoma in 97 patients with Crohn's disease. Twelve of these patients (12.4%) required at least 1 myocutaneous flap to achieve primary closure of the perineal wound. Details of each patient's perioperative course were recorded prospectively.

RESULTS

All 12 patients had fistulizing perineal Crohn's disease combined with Crohn's proctitis. Two patients had a simultaneous anal adenocarcinoma. Indications for flap closure included management of large perineal skin defects (n = 11), reconstruction of the posterior vaginal wall (n = 2), and the need to fill a large pelvic dead space (n = 3). (Three patients had a combination of the previous indications). In total, 6 rectus abdominis, 5 gluteus maximus, 1 posterior thigh, 3 chimeric posterior thigh, and 1 latissimus dorsi flaps were performed. Six patients required more than 1 flap. Three patients had complications develop related to the flaps (2 wound hematomas and 1 seroma). Complete perineal healing was achieved in all patients.

CONCLUSIONS

Complex tissue flap closure of the perineal wound after proctectomy for perineal complications of Crohn's disease should be considered when simple closure is not possible or when reconstruction of the posterior wall of the vagina is necessary.

Side-to-side isoperistaltic strictureplasty in extensive Crohn's disease: a prospective longitudinal study

OBJECTIVE

To report on the results of a prospective longitudinal study of a new bowel-sparing procedure (side-to-side isoperistaltic strictureplasty [SSIS]) in patients with extensive Crohn's disease.

METHODS

Between January 1992 and April 1999, the authors operated on 469 consecutive patients for Crohn's disease of the small bowel. Seventy-one patients (15.1%) underwent at least one strictureplasty; of these, 21 (4.5%; 12 men, 9 women; mean age 39) underwent an SSIS. The long-term changes occurring in the SSIS were studied radiographically, endoscopically, and histopathologically.

RESULTS

The indication for surgical intervention was symptomatic partial intestinal obstruction in each of the 21 patients. Fourteen SSISs were constructed in the jejunum, four in the ileum, and three with ileum overlapping colon. The average length of the SSIS was 24 cm. Performance of an SSIS instead of a resection resulted in preservation of an average of 17% of small bowel length. One patient suffered a postoperative gastrointestinal hemorrhage. All patients were discharged on oral feedings after a mean of 8 days. In all cases, SSIS resulted in resolution of the preoperative symptoms. With follow-up extending to 7.5 years in 20 patients (one patient died of unrelated causes), radiographic, endoscopic, and histopathologic examination of the SSIS suggests regression of previously active Crohn's disease.

CONCLUSIONS

SSIS is a safe and effective procedure in patients with extensive Crohn's disease. The authors' results provide radiographic, endoscopic, and histopathologic evidence that active Crohn's disease regresses at the site of the SSIS.