Current attitudes in laparoscopic colorectal surgery.

BACKGROUND: In this study, we set out to examine the current attitudes among surgeons toward laparoscopic colorectal surgery (LCS). METHODS: A total of 3628 questionnaires were sent to all North American members of the Society of American Gastrointestinal Endoscopic Surgeons (SAGES) and the American Society of Colon and Rectal Surgeons (ASCRS); 40% of the members of each society responded (B15 respondents). RESULTS: Currently, 85% of the respondents perform laparoscopic surgery; LCS was performed by 48% of the respondents in 21% of their patients. Although 35% of the members of SAGES have increased the number of laparoscopic colorectal operations they perform in the last 3 years, only 26% of ASCRS members did so. Our findings showed that 74% of the surgeons who perform LCS do so for diverticular disease, 68% for colonic polyps, 61% for villous adenoma, and 36% for ileal Crohn's disease. However, only 15% operate for the cure of carcinoma of any stage (16% of SAGES members and 11% of ASCRS members), whereas 8.5% and 7% operate for the cure of all upper and lower rectal carcinomas, respectively. Thirty-six percent of the surgeons who perform LCS for cancer have done between one and 10 curative resections, 8% have done 11-20 procedures, and 14% have done >20 procedures. There were 80 cases of port site recurrence reported by 4.4% of surgeons. Although 56% of the respondents would themselves undergo laparoscopic colorectal surgery for a rectal villous adenoma, only 9% would do so for a distal-third rectal carcinoma (12% of SAGES and 5% of ASCRS respondents). CONCLUSIONS: The overall percentage of respondents performing LCS has decreased over the last 3 years; moreover, surgeons are more hesitant to perform laparoscopic surgery for the cure of colonic cancer. Due to the overall low response rate, the fact that 4.4% of those surgeons who did respond have seen port site recurrences does not allow any conclusions to be drawn about the prevalence of this problem.

Implantation of microballoons in the management of fecal incontinence.

PURPOSE: The implantation of expandable microballoons has proved successful for the treatment of stress urinary incontinence. This led us to test its effectiveness in the treatment of severe fecal incontinence. METHODS: Six patients (four male), of average age of 43 (range, 29-60) years, with severe fecal incontinence, underwent implantation of expandable microballoons in the submucosa of the anal canal. The implantation was performed under intravenous sedation as an outpatient procedure. Anal manometry, endosonography, and incontinence assessment with a scoring system were performed before and after the implantation. RESULTS: With a mean follow-up of 8.6 (range, 7-12) months, the incontinence scores improved in all patients from an average of 16.16 (standard deviation: +/- 1.6) before the implantation to an average of 5 (standard deviation: +/- 1.26) after the procedure. The anal pressure at rest was not improved in any patient (mean: 50.16 before treatment to a mean of 53 after treatment). No significant adverse events were associated with the procedure, and no serious postimplantation complications were noted. DISCUSSION: Anal implantation of expandable microballoons seems to be a simple, safe, and effective method that restores the fecal continence without hindering normal defecation.

Postanal repair for fecal incontinence--is it worthwhile?

PURPOSE: Patients with idiopathic or neurogenic incontinence without an isolated sphincter defect may be suitable candidates for a postanal repair. The aim of this study was to assess the results of postanal repair in patients with idiopathic or neurogenic fecal incontinence and to evaluate the role of various parameters, including preoperative physiologic testing on outcome. METHODS: Postanal repair was offered by a single surgeon to patients meeting the following criteria: incontinence score of at least 12 of 20, absence of an isolated anterior external anal sphincter defect, and failed conservative, medical, and biofeedback management. Physiologic investigation and clinical findings of female patients who had postanal repair for fecal incontinence between 1992 and 1998 were reviewed. Physiologic investigation included anorectal manometry, pudendal nerve terminal motor latency, concentric needle electromyography, and endoanal ultrasonography. Follow-up was obtained by telephone questionnaire; moreover, patients were asked to grade the outcome of their surgery as excellent or good (success) or as fair or poor (failure). RESULTS: Twenty-one patients of median age 68 (range, 40-80) years had a mean duration of fecal incontinence before postanal repair of 6.8 (range, 0.5-22) years. Twenty patients (95 percent) were available for at least one year of follow-up. Seventeen patients (80.9 percent) had at least one prior vaginal delivery, and prior sphincteroplasty had been performed in 10 patients (47.6 percent). The morbidity and mortality rates were 5 and 0 percent, respectively. After a mean follow-up period of three (range, 1-7.5) years, seven patients (35 percent) considered surgery to be successful and had a statistically significant decrease in their incontinence score. Neither prolongation of pudendal nerve terminal motor latency nor external sphincter damage as noted on electromyography or any of the preoperative manometric parameters correlated with outcome. Furthermore, patients' ages at surgery did not correlate with the degree of postoperative improvement in continence scores nor did the duration of the patients' symptoms, number of vaginal deliveries, or a history of previous surgery for fecal incontinence. CONCLUSION: None of the factors assessed was demonstrated to be predictive of outcome after postanal repair; moreover, the currently available preoperative testing has not altered the success rate, which remains low (35 percent). Despite the low success rate, the absence of any mortality and the low morbidity suggest that postanal repair may be a valid therapeutic approach. However, it should be offered only to selected patients with persistent, severe fecal incontinence despite an anatomically intact external anal sphincter who are not candidates for or refuse all other operative modalities.

Intraobserver and interobserver measurements of the anorectal angle and perineal descent in defecography.

PURPOSE: Anorectal angle and perineal descent can be measured either by drawing a line defined by the impression of the puborectalis muscle and the tangential of the posterior rectal wall (Method A) or by drawing a straight line at the level of the posterior rectal wall parallel to the central longitudinal axis of the rectum (Method B). The aim of this study was to assess the reproducibility of measuring anorectal angle and perineal descent by two different methods according to intraobserver and interobserver measurement and to evaluate which method yields more consistent results. METHODS: Five physicians who have had an average of 1.3 years (range, 6 months to 1.5 years) experience in defecographic measurement drew both lines on 63 randomly selected defecographic films and measured anorectal angle and perineal descent by the two methods. The defecographic parameters were measured twice by each observer during a three-week interval. To avoid potential bias, one physician who did not participate in either measurement of perineal descent or anorectal angle performed all data collection. Intraobserver and interobserver agreement was quantified using Shrout and Fleiss intraclass correlation coefficients. RESULTS: The mean and range of intraclass correlation coefficients for intraobserver agreement of measuring anorectal angle and perineal descent by Method A were 0.71 (0.6-0.78) and 0.89 (0.74-0.97), respectively, whereas with Method B the coefficients were 0.81 (0.73-0.89) and 0.93 (0.89-0.99), respectively. Regarding the interobserver agreement of the five observers, the mean coefficients for measurement of both anorectal angle and perineal descent by both methods showed similar agreement levels (0.88 and 0.98 by Method A and 0.89 and 0.97 by Method B). The mean (+/- standard deviation) values of anorectal angle and perineal descent found by Method B were significantly larger than those found by Method A (103.3 degrees +/- 19.6 and 6.56+/-3.20 cm and 91.1 degrees +/- 25.6 and 5.64+/-3.42 cm, respectively; P<0.001). CONCLUSION: Intraobserver and interobserver intraclass correlation coefficients of anorectal angle and perineal descent, which were measured by both methods, were more than 0.60, indicating that both methods are reliable and consistent for measurement of anorectal angle and perineal descent. However, centers should consistently use the same line for measurement of anorectal angle and perineal descent because of the statistically significant differences between the two methods and the possibility of inconsistent results.

A pilot assessment of whether external coil MRI is useful to assess evacuatory disorders.

This study assessed the value of common surface coil magnetic resonance imaging (MRI) in patients with evacuatory disorders including fecal incontinence and constipation. These findings were then compared with those from other standard physiological examinations and/or surgical findings. From July 1996 to June 1997, 14 consecutive patients underwent surface coil MRI for evaluation of either fecal incontinence (n=5) or constipation (n=9). In patients with incontinence we compared the findings from endoanal ultrasound (EAUS), anal MRI, and surgery regarding morphopathological findings of the internal and external anal sphincter components. In constipated patients the findings of videoprography and dynamic pelvic MRI were compared regarding the presence of rectocele, rectoanal intussusception, and sigmoidocele as well as the measurements of anorectal angle and perineal descent. The five incontinent patients were all women, with a median age of 67 years (range 43-77). EAUS revealed an anterior sphincter defect in two patients, a posterior defect in one, and normal anal sphincter images in two. Surgical findings confirmed an anterior external anal sphincter scar in two patients, an internal anal sphincter defect in one, and an anatomically normal anal sphincter in two. In one patient, although anal MRI showed posterior external anal sphincter defect, EAUS and surgery revealed normal external anal sphincter appearance. The accuracy rate between EAUS and anal MRI was only 20%, that between surgery and anal MRI 40%, and that between surgery and EAUS 80%. Thus EAUS was more accurate than anal MRI in incontinent patients. The nine constipated patients were all women, with a mean age of 59 years (range 40-78). Videoproctography revealed an anterior rectocele in six patients, rectoanal intussusception in three, and sigmoidocele in five; no abnormalities were identified in two patients. On dynamic pelvic MRI anterior rectocele was seen in three patients and sigmoidocele in two, and five studies were interpreted as normal. One of the patients underwent sigmoidectomy for sigmoidocele, and five patients were treated by biofeedback. Thus the accuracy rate of dynamic pelvic MRI against videoproctography was 60% for anterior rectocele, 40% for sigmoidocele, and zero for rectoanal intussusception. In conclusion, neither MRI for the evaluation of patients with fecal incontinence nor for the evaluation of patients with constipation added any significant information that would warrant its continued use in these patient groups. Perhaps the more widespread availability of an endoanal coil will alter this conclusion; however, at the present time we cannot routinely endorse the expense, time, or inconvenience of these MRI investigations in patients with these diagnoses. Larger prospective comparative studies are required prior to endorsing the technique.

Fecal Incontinence Quality of Life Scale: quality of life instrument for patients with fecal incontinence.

PURPOSE: This goal of this research was to develop and evaluate the psychometrics of a health-related quality of life scale developed to address issues related specifically to fecal incontinence, the Fecal Incontinence Quality of Life Scale. METHODS: The Fecal Incontinence Quality of Life Scale is composed of a total of 29 items; these items form four scales: Lifestyle (10 items), Coping/Behavior (9 items), Depression/Self-Perception (7 items), and Embarrassment (3 items). RESULTS: Psychometric evaluation of these scales demonstrates that they are both reliable and valid. Each of the scales demonstrate stability over time (test/retest reliability) and have acceptable internal reliability (Cronbach alpha >0.70). Validity was assessed using discriminate and convergent techniques. Each of the four scales of the Fecal Incontinence Quality of Life Scale was capable of discriminating between patients with fecal incontinence and patients with other gastrointestinal problems. To evaluate convergent validity, the correlation of the scales in the Fecal Incontinence Quality of Life Scale with selected subscales in the SF-36 was analyzed. The scales in the Fecal Incontinence Quality of Life Scale demonstrated significant correlations with the subscales in the SF-36. CONCLUSIONS: The psychometric evaluation of the Fecal Incontinence Quality of Life Scale showed that this fecal incontinence-specific quality of life measure produces both reliable and valid measurement.

Patient and surgeon ranking of the severity of symptoms associated with fecal incontinence: the fecal incontinence severity index.

PURPOSE: The purpose of this research was to develop and evaluate a severity rating score for fecal incontinence, the Fecal Incontinence Severity Index. METHODS: The Fecal Incontinence Severity Index is based on a type x frequency matrix. The matrix includes four types of leakage commonly found in the fecal incontinent population: gas, mucus, and liquid and solid stool and five frequencies: one to three times per month, once per week, twice per week, once per day, and twice per day. The Fecal Incontinence Severity Index was developed using both colon and rectal surgeons and patient input for the specification of the weighting scores. RESULTS: Surgeons and patients had very similar weightings for each of the type x frequency combinations; significant differences occurred for only 3 of the 20 different weights. The Fecal Incontinence Severity Index score of a group of patients with fecal incontinence (N = 118) demonstrated significant correlations with three of the four scales found in a fecal incontinence quality-of-life scale. CONCLUSIONS: Evaluation of the Fecal Incontinence Severity Index indicates that the index is a tool that can be used to assess severity of fecal incontinence. Overall, patient and surgeon ratings of severity are similar, with minor differences associated with the accidental loss of solid stool.

Stimulated graciloplasty for treatment of intractable fecal incontinence: critical influence of the method of stimulation.

INTRODUCTION: Patients with end-stage fecal incontinence, in whom all standard medical and surgical treatment has failed or is not expected to be effective, can be treated by stimulated graciloplasty. The aim of the present study was to assess the efficacy of stimulated graciloplasty by both direct nerve and intramuscular perineural stimulation techniques and to evaluate various parameters relative to outcome. METHODS: A prospective analysis of all patients who underwent this procedure was undertaken. All patients were preoperatively investigated by anal manometry, electromyography, pudendal nerve terminal motor latency assessment, endoanal ultrasound, and an enema retention test. They were further assessed with an incontinence scoring system and a Quality of Life Questionnaire. Postoperative evaluation included anorectal manometry, incontinence score registry, and a Quality of Life Questionnaire. In our initial experience the stimulation system electrodes were fixed directly to the nerve (direct nerve stimulation graciloplasty); later in the study the stimulation system electrodes were fixed intramuscularly close to the nerve branches (intramuscular perineural stimulation graciloplasty). RESULTS: From May 1993 to February 1998, 27 patients underwent 33 gracilis transpositions for fecal incontinence, 30 of which were stimulated. Six of the patients with direct nerve stimulation graciloplasty eventually had the direct nerve stimulator removed and replaced with an intramuscular electrode stimulator. After an mean follow-up (until the time of exit from study) of 12.5 (range, 1-23) months for direct nerve stimulation graciloplasty and 21 (range, 8-27) months for intramuscular perineural stimulation graciloplasty, 13 graciloplasties (43 percent) were successful. There was no correlation between outcome of surgery and age, duration or cause of symptoms, body habitus, manometric or electromyographic parameters, prior sphincter repair, the presence of a pre-existing stoma, or any immediate postoperative complications. However, the number of patients with intramuscular perineural stimulation graciloplasty who had a successful outcome (continent, 69 percent; improved but not fully continent, 23 percent; incontinent, 8 percent) was significantly higher than patients with direct nerve stimulation graciloplasty (improved but not fully continent, 10 percent; incontinent, 90 percent). CONCLUSION: The success of stimulated graciloplasty is dependent on the method of nerve stimulation, whereas surprisingly, none of the many other factors assessed influenced outcome.

A clinical approach to fecal incontinence.

Fecal incontinence is the impaired ability to control gas or stool. It is a disabling and distressing condition. Its exact incidence and prevalence are unknown. It is a disorder about which patients are frequently reluctant to discuss, even with their physician. However, it is a common condition especially in older individuals, where the prevalence has been reported to approach 60%. In women, incontinence reaches 54% as a result of childbirth. Of the patients surgically treated, the female-to-male ratio is 4 to 1. In an epidemiological study to identify its community-based prevalence, the University of Illinois determined fecal incontinence existed in 2.2% of the general population. There is available treatment for fecal incontinence. Many patients improve with conservative treatment (constipating agents, antidiarrheal medications, dietary changes) or with biofeedback. For patients where conservative treatment has failed, surgical treatment (direct-apposition sphincter repair, overlapping sphincteroplasty, postanal repair, neosphincter procedures) may be successful.

Pelvic floor reconstruction after major cancer surgery.

BACKGROUND: Many surgical techniques to keep the small intestine out of the pelvis after cancer surgery have been developed. METHODS: We used part of the ileum and its mesentery sutured around the linea terminalis in ten patients who underwent surgery for rectal or gynecologic carcinomas. RESULTS: All imaging studies of our patients on the tenth postoperative day confirmed the position of the bowel above the pelvis. Four of ten patients had radiation treatment postoperatively without any problems. CONCLUSION: Use of the ileum to reconstruct the pelvic floor seems to be a simple and efficacious technique to keep the pelvic area free. We believe this warrants further investigation in a larger number of patients.