Is bowel confinement necessary after anorectal reconstructive surgery? A prospective, randomized, surgeon-blinded trial

Baiona's Consensus Statement for Fecal Incontinence. Spanish Association of Coloproctology

Faecal incontinence (FI) is a major health problem, both for individuals and for health systems. It is obvious that, for all these reasons, there is widespread concern for healing it or, at least, reducing as far as possible its numerous undesirable effects, in addition to the high costs it entails. There are different criteria for the diagnostic tests to be carried out and the same applies to the most appropriate treatment, among the numerous options that have proliferated in recent years, not always based on rigorous scientific evidence. For this reason, the Spanish Association of Coloproctology (AECP) proposed to draw up a consensus to serve as a guide for all health professionals interested in the problem, aware, however, that the therapeutic decision must be taken on an individual basis: patient characteristics/experience of the care team. For its development it was adopted the Nominal Group Technique methodology. The Levels of Evidence and Grades of Recommendation were established according to the criteria of the Oxford Centre for Evidence-Based Medicine. In addition, expert recommendations were added briefly to each of the items analysed.

Metabolic and Nutritional Issues after Lower Digestive Tract Surgery: The Important Role of the Dietitian in a Multidisciplinary Setting

Many patients undergo small bowel and colon surgery for reasons related to malignancy, inflammatory bowel disease (IBD), mesenteric ischemia, and other benign conditions, including post-operative adhesions, hernias, trauma, volvulus, or diverticula. Some patients arrive in the operating theatre severely malnourished due to an underlying disease, while others develop complications (e.g., anastomotic leaks, abscesses, or strictures) that induce a systemic inflammatory response that can increase their energy and protein requirements. Finally, anatomical and functional changes resulting from surgery can affect either nutritional status due to malabsorption or nutritional support (NS) pathways. The dietitian providing NS to these patients needs to understand the pathophysiology underlying these sequelae and collaborate with other professionals, including surgeons, internists, nurses, and pharmacists. The aim of this review is to provide an overview of the nutritional and metabolic consequences of different types of lower gastrointestinal surgery and the role of the dietitian in providing comprehensive patient care. This article reviews the effects of small bowel resection on macronutrient and micronutrient absorption, the effects of colectomies (e.g., ileocolectomy, low anterior resection, abdominoperineal resection, and proctocolectomy) that require special dietary considerations, nutritional considerations specific to ostomized patients, and clinical practice guidelines for caregivers of patients who have undergone a surgery for local and systemic complications of IBD. Finally, we highlight the valuable contribution of the dietitian in the challenging management of short bowel syndrome and intestinal failure.

European Society of Coloproctology: Guidelines for diagnosis and treatment of cryptoglandular anal fistula

AIM

The primary aim of the European Society of Coloproctology (ESCP) Guideline Development Group (GDG) was to produce high-quality, evidence-based guidelines for the management of cryptoglandular anal fistula with input from a multidisciplinary group and using transparent, reproducible methodology.

METHODS

Previously published methodology in guideline development by the ESCP has been replicated in this project. The guideline development process followed the requirements of the AGREE-S tool kit. Six phases can be identified in the methodology. Phase one sets the scope of the guideline, which addresses the diagnostic and therapeutic management of perianal abscess and cryptoglandular anal fistula in adult patients presenting to secondary care. The target population for this guideline are healthcare practitioners in secondary care and patients interested in understanding the clinical evidence available for various surgical interventions for anal fistula. Phase two involved formulation of the GDG. The GDG consisted of 21 coloproctologists, three research fellows, a radiologist and a methodologist. Stakeholders were chosen for their clinical and academic involvement in the management of anal fistula as well as being representative of the geographical variation among the ESCP membership. Five patients were recruited from patient groups to review the draft guideline. These patients attended two virtual meetings to discuss the evidence and suggest amendments. In phase three, patient/population, intervention, comparison and outcomes questions were formulated by the GDG. The GDG ratified 250 questions and chose 45 for inclusion in the guideline. In phase four, critical and important outcomes were confirmed for inclusion. Important outcomes were pain and wound healing. Critical outcomes were fistula healing, fistula recurrence and incontinence. These outcomes formed part of the inclusion criteria for the literature search. In phase five, a literature search was performed of MEDLINE (Ovid), PubMed, Embase (Ovid) and the Cochrane Database of Systematic Reviews by eight teams of the GDG. Data were extracted and submitted for review by the GDG in a draft guideline. The most recent systematic reviews were prioritized for inclusion. Studies published since the most recent systematic review were included in our analysis by conducting a new meta-analysis using Review manager. In phase six, recommendations were formulated, using grading of recommendations, assessment, development, and evaluations, in three virtual meetings of the GDG.

RESULTS

In seven sections covering the diagnostic and therapeutic management of perianal abscess and cryptoglandular anal fistula, there are 42 recommendations.

CONCLUSION

This is an up-to-date international guideline on the management of cryptoglandular anal fistula using methodology prescribed by the AGREE enterprise.

UK survey of colorectal surgeons on the management of acute obstetric anal sphincter injuries

AIM

The role of colorectal surgeons in the management of acute obstetric anal sphincter injury (OASI) is an ongoing debate. Their expertise in operating in the anorectal region lends itself to assisting in OASI repair. The aim of this study was to establish the current involvement and recommended management of acute OASI by colorectal surgeons.

METHOD

An online survey of consultant colorectal surgeons was sent to members of the Pelvic Floor Society to assess current involvement in acute OASI management and repair.

RESULTS

Forty completed surveys were collated and analysed. Sixty-five per cent of respondents had seen an acute OASI since being a consultant and 50% stated they were involved in the repair of OASI less than once per year. 37.5% felt that a de-functioning stoma was still necessary sometimes. Many agreed with current guidelines for OASI repair in terms of antibiotics, laxatives and follow-up.

CONCLUSIONS

Colorectal surgeons have varied opinions on the management of OASI. We suggest that multidisciplinary training of obstetricians and colorectal surgeons could lead to more collaboration regarding the management of women with acute OASI.

Strategies to Reduce Post-Hemorrhoidectomy Pain: A Systematic Review

Background and Objectives: Excisional hemorrhoidectomy is considered as a mainstay operation for high-grade hemorrhoids and complicated hemorrhoids. However, postoperative pain remains a challenging problem after hemorrhoidectomy. This systematic review aims to identify pharmacological and non-pharmacological interventions for reducing post-hemorrhoidectomy pain. Materials and Methods: The databases of Ovid MEDLINE, PubMed and EMBASE were systematically searched for randomized controlled trails (published in English language with full-text from 1981 to 30 September 2021) to include comparative studies examining post-hemorrhoidectomy pain as their primary outcomes between an intervention and another intervention (or a sham or placebo). Results: Some 157 studies were included in this review with additional information from 15 meta-analyses. Fundamentally, strategies to reduce post-hemorrhoidectomy pain were categorized into four groups: anesthetic methods, surgical techniques, intraoperative adjuncts, and postoperative interventions. In brief, local anesthesia-alone or combined with intravenous sedation was the most effective anesthetic method for excisional hemorrhoidectomy. Regarding surgical techniques, closed (Ferguson) hemorrhoidectomy performed with a vascular sealing device or an ultrasonic scalpel was recommended. Lateral internal anal sphincterotomy may be performed as a surgical adjunct to reduce post-hemorrhoidectomy pain, although it increased risks of anal incontinence. Chemical sphincterotomy (botulinum toxin, topical calcium channel blockers, and topical glyceryl trinitrate) was also efficacious in reducing postoperative pain. So were other topical agents such as anesthetic cream, 10% metronidazole ointment, and 10% sucralfate ointment. Postoperative administration of oral metronidazole, flavonoids, and laxatives was associated with a significant reduction in post-hemorrhoidectomy pain. Conclusions: This systematic review comprehensively covers evidence-based strategies to reduce pain after excisional hemorrhoidectomy. Areas for future research on this topic are also addressed at the end of this article.

Early enteral nutrition within 24 hours of lower gastrointestinal surgery versus later commencement for length of hospital stay and postoperative complications

BACKGROUND

This is an update of the review last published in 2011. It focuses on early postoperative enteral nutrition after lower gastrointestinal surgery. Traditional management consisted of 'nil by mouth', where patients receive fluids followed by solids after bowel function has returned. Although several trials have reported lower incidence of infectious complications and faster wound healing upon early feeding, other trials have shown no effect. The immediate advantage of energy intake (carbohydrates, protein or fat) could enhance recovery with fewer complications, and this warrants a systematic evaluation.

OBJECTIVES

To evaluate whether early commencement of postoperative enteral nutrition (within 24 hours), oral intake and any kind of tube feeding (gastric, duodenal or jejunal), compared with traditional management (delayed nutritional supply) is associated with a shorter length of hospital stay (LoS), fewer complications, mortality and adverse events in patients undergoing lower gastrointestinal surgery (distal to the ligament of Treitz).

SEARCH METHODS

We searched the Cochrane Central Register of Controlled Trials (CENTRAL, the Cochrane Library 2017, issue 10), Ovid MEDLINE (1950 to 15 November 2017), Ovid Embase (1974 to 15 November 2017). We also searched for ongoing trials in ClinicalTrials.gov and World Health Organization International Clinical Trials Registry Platform (15 November 2017). We handsearched reference lists of identified studies and previous systematic reviews.

SELECTION CRITERIA

We included randomised controlled trials (RCT) comparing early commencement of enteral nutrition (within 24 hours) with no feeding in adult participants undergoing lower gastrointestinal surgery.

DATA COLLECTION AND ANALYSIS

Two review authors independently assessed study quality using the Cochrane 'Risk of bias' tool tailored to this review and extracted data. Data analyses were conducted according to the Cochrane recommendations.We rated the quality of evidence according to GRADE.Primary outcomes were LoS and postoperative complications (wound infections, intraabdominal abscesses, anastomotic dehiscence, pneumonia).Secondary outcomes were: mortality, adverse events (nausea, vomiting), and quality of life (QoL).LoS was estimated using mean difference (MD (presented as mean +/- SD). For other outcomes we estimated the common risk ratio (RR) and calculated the associated 95% confidence intervals. For analysis, we used an inverse-variance random-effects model for the primary outcome (LoS) and Mantel-Haenszel random-effects models for the secondary outcomes. We also performed Trial Sequential Analyses (TSA).

MAIN RESULTS

We identified 17 RCTs with 1437 participants undergoing lower gastrointestinal surgery. Most studies were at high or unclear risk of bias in two or more domains. Six studies were judged as having low risk of selection bias for random sequence generation and insufficient details were provided for judgement on allocation concealment in all 17 studies. With regards to performance and deception bias; 14 studies reported no attempt to blind participants and blinding of personnel was not discussed either. Only one study was judged as low risk of bias for blinding of outcome assessor. With regards to incomplete outcome data, three studies were judged to be at high risk because they had more than 10% difference in missing data between groups. For selective reporting, nine studies were judged as unclear as protocols were not provided and eight studies had issues with either missing data or incomplete reporting of results.LOS was reported in 16 studies (1346 participants). The mean LoS ranged from four days to 16 days in the early feeding groups and from 6.6 days to 23.5 days in the control groups. Mean difference (MD) in LoS was 1.95 (95% CI, -2.99 to -0.91, P < 0.001) days shorter in the early feeding group. However, there was substantial heterogeneity between included studies (I² = 81, %, Chi² = 78.98, P < 0.00001), thus the overall quality of evidence for LoS is low. These results were confirmed by the TSA showing that the cumulative Z-curve crossed the trial sequential monitoring boundary for benefit.We found no differences in the incidence of postoperative complications: wound infection (12 studies, 1181 participants, RR 0.99, 95%CI 0.64 to 1.52, very low-quality evidence), intraabdominal abscesses (6 studies, 554 participants, RR 1.00, 95%CI 0.26 to 3.80, low-quality evidence), anastomotic leakage/dehiscence (13 studies, 1232 participants, RR 0.78, 95%CI 0.38 to 1.61, low-quality evidence; number needed to treat for an additional beneficial outcome (NNTB) = 100), and pneumonia (10 studies, 954 participants, RR 0.88, 95%CI 0.32 to 2.42, low-quality evidence; NNTB = 333).Mortality was reported in 12 studies (1179 participants), and showed no between-group differences (RR = 0.56, 95%CI, 0.21 to 1.52, P = 0.26, I² = 0%, Chi² = 3.08, P = 0.96, low-quality evidence). The most commonly reported cause of death was anastomotic leakage, sepsis and acute myocardial infarction.Seven studies (613 participants) reported vomiting (RR 1.23, 95%CI, 0.96 to 1.58, P = 0.10, I² = 0%, Chi² = 4.98, P = 0.55, low-quality evidence; number needed to treat for an additional harmful outcome (NNTH) = 19), and two studies (118 participants) reported nausea (RR 0.95, 0.71 to 1.26, low-quality evidence). Four studies reported combined nausea and vomiting (RR 0.94, 95%CI 0.51 to 1.74, very low-quality evidence). One study reported QoL assessment; the scores did not differ between groups at 30 days after discharge on either QoL scale EORTC QLQ-C30 or EORTC QlQ-OV28 (very low-quality evidence).

AUTHORS' CONCLUSIONS

This review suggests that early enteral feeding may lead to a reduced postoperative LoS, however cautious interpretation must be taken due to substantial heterogeneity and low-quality evidence. For all other outcomes (postoperative complications, mortality, adverse events, and QoL) the findings are inconclusive, and further trials are justified to enhance the understanding of early feeding for these. In this updated review, only a few additional studies have been included, and these were small and of poor quality.To improve the evidence, future trials should address quality issues and focus on clearly defining and measuring postoperative complications to allow for better comparison between studies. However due to the introduction of fast track protocols which already include an early feeding component, future trials may be challenging. A more feasible trial may be to investigate the effect of differing postoperative energy intake regimens on relevant outcomes.

Early enteral nutrition within 24 hours of lower gastrointestinal surgery versus later commencement for length of hospital stay and postoperative complications

BACKGROUND

This is an update of the review last published in 2011. It focuses on early postoperative enteral nutrition after lower gastrointestinal surgery. Traditional management consisted of 'nil by mouth', where patients receive fluids followed by solids after bowel function has returned. Although several trials have reported lower incidence of infectious complications and faster wound healing upon early feeding, other trials have shown no effect. The immediate advantage of energy intake (carbohydrates, protein or fat) could enhance recovery with fewer complications, and this warrants a systematic evaluation.

OBJECTIVES

To evaluate whether early commencement of postoperative enteral nutrition (within 24 hours), oral intake and any kind of tube feeding (gastric, duodenal or jejunal), compared with traditional management (delayed nutritional supply) is associated with a shorter length of hospital stay (LoS), fewer complications, mortality and adverse events in patients undergoing lower gastrointestinal surgery (distal to the ligament of Treitz).

SEARCH METHODS

We searched the Cochrane Central Register of Controlled Trials (CENTRAL, the Cochrane Library 2017, issue 10), Ovid MEDLINE (1950 to 15 November 2017), Ovid Embase (1974 to 15 November 2017). We also searched for ongoing trials in ClinicalTrials.gov and World Health Organization International Clinical Trials Registry Platform (15 November 2017). We handsearched reference lists of identified studies and previous systematic reviews.

SELECTION CRITERIA

We included randomised controlled trials (RCT) comparing early commencement of enteral nutrition (within 24 hours) with no feeding in adult participants undergoing lower gastrointestinal surgery.

DATA COLLECTION AND ANALYSIS

Two review authors independently assessed study quality using the Cochrane 'Risk of bias' tool tailored to this review and extracted data. Data analyses were conducted according to the Cochrane recommendations.We rated the quality of evidence according to GRADE.Primary outcomes were LoS and postoperative complications (wound infections, intraabdominal abscesses, anastomotic dehiscence, pneumonia).Secondary outcomes were: mortality, adverse events (nausea, vomiting), and quality of life (QoL).LoS was estimated using mean difference (MD (presented as mean +/- SD). For other outcomes we estimated the common risk ratio (RR) and calculated the associated 95% confidence intervals. For analysis, we used an inverse-variance random-effects model for the primary outcome (LoS) and Mantel-Haenszel random-effects models for the secondary outcomes. We also performed Trial Sequential Analyses (TSA).

MAIN RESULTS

We identified 17 RCTs with 1437 participants undergoing lower gastrointestinal surgery. Most studies were at high or unclear risk of bias in two or more domains. Six studies were judged as having low risk of selection bias for random sequence generation and insufficient details were provided for judgement on allocation concealment in all 17 studies. With regards to performance and deception bias; 14 studies reported no attempt to blind participants and blinding of personnel was not discussed either. Only one study was judged as low risk of bias for blinding of outcome assessor. With regards to incomplete outcome data, three studies were judged to be at high risk because they had more than 10% difference in missing data between groups. For selective reporting, nine studies were judged as unclear as protocols were not provided and eight studies had issues with either missing data or incomplete reporting of results.LOS was reported in 16 studies (1346 participants). The mean LoS ranged from four days to 16 days in the early feeding groups and from 6.6 days to 23.5 days in the control groups. Mean difference (MD) in LoS was 1.95 (95% CI, -2.99 to -0.91, P < 0.001) days shorter in the early feeding group. However, there was substantial heterogeneity between included studies (I² = 81, %, Chi² = 78.98, P < 0.00001), thus the overall quality of evidence for LoS is low. These results were confirmed by the TSA showing that the cumulative Z-curve crossed the trial sequential monitoring boundary for benefit.We found no differences in the incidence of postoperative complications: wound infection (12 studies, 1181 participants, RR 0.99, 95%CI 0.64 to 1.52, very low-quality evidence), intraabdominal abscesses (6 studies, 554 participants, RR 1.00, 95%CI 0.26 to 3.80, low-quality evidence), anastomotic leakage/dehiscence (13 studies, 1232 participants, RR 0.78, 95%CI 0.38 to 1.61, low-quality evidence; number needed to treat for an additional beneficial outcome (NNTB) = 100), and pneumonia (10 studies, 954 participants, RR 0.88, 95%CI 0.32 to 2.42, low-quality evidence; NNTB = 333).Mortality was reported in 12 studies (1179 participants), and showed no between-group differences (RR = 0.56, 95%CI, 0.21 to 1.52, P = 0.26, I² = 0%, Chi² = 3.08, P = 0.96, low-quality evidence). The most commonly reported cause of death was anastomotic leakage, sepsis and acute myocardial infarction.Seven studies (613 participants) reported vomiting (RR 1.23, 95%CI, 0.96 to 1.58, P = 0.10, I² = 0%, Chi² = 4.98, P = 0.55, low-quality evidence; number needed to treat for an additional harmful outcome (NNTH) = 19), and two studies (118 participants) reported nausea (RR 0.95, 0.71 to 1.26, low-quality evidence). Four studies reported combined nausea and vomiting (RR 0.94, 95%CI 0.51 to 1.74, very low-quality evidence). One study reported QoL assessment; the scores did not differ between groups at 30 days after discharge on either QoL scale EORTC QLQ-C30 or EORTC QlQ-OV28 (very low-quality evidence).

AUTHORS' CONCLUSIONS

This review suggests that early enteral feeding may lead to a reduced postoperative LoS, however cautious interpretation must be taken due to substantial heterogeneity and low-quality evidence. For all other outcomes (postoperative complications, mortality, adverse events, and QoL) the findings are inconclusive, and further trials are justified to enhance the understanding of early feeding for these. In this updated review, only a few additional studies have been included, and these were small and of poor quality.To improve the evidence, future trials should address quality issues and focus on clearly defining and measuring postoperative complications to allow for better comparison between studies. However due to the introduction of fast track protocols which already include an early feeding component, future trials may be challenging. A more feasible trial may be to investigate the effect of differing postoperative energy intake regimens on relevant outcomes.

V-Y advancement flaps for extensive perianal defect repair

OBJECTIVES

Some perianal pathologies require aggressive surgery that will need techniques to allow to re-establish the integrity of the perianal region. The purpose is to analyze short and long term results after perineal reconstruction with V-Y flaps.

METHODS

A retrospective review of prospectively collected database was conducted at Virgen de la Arrixaca's Hospital in Murcia (España) between January 2000 and December 2013. The study includes all patients who underwent a perineal reconstruction with V-Y flaps. Demographic and surgical data and short-/long- term morbidity was recorded.

RESULTS

10 patients were included, 6 males and 4 females. The average age was 58,1±17,4 years. Surgical indication included both malignant and benign pathologies. Operating time was 143,5±41,3min. R0 resection was performed in all cases although histopathological analysis showed involvement of the deeper margin in 3 cases. Length of hospital stay was 7,8±7,6 days. Regarding complications: 6 patients had partial dehiscence of the flap. None of the patients lost the flap completely. The most frequent late complication was anal stenosis (n=4). Follow up showed total continence in 7 patients. Two patients had variable fecal and/or flatus incontinence. A colostomy was made in one case due to severe incontinence.

CONCLUSIONS

V-Y flaps are an effective and feasible technique to cover large perianal defects after aggressive surgeries. However, this technique is not free of postoperative morbidity.

Early oral feeding versus traditional postoperative care after abdominal emergency surgery: a randomized controlled trial

BACKGROUND

Early oral feeding (EOF) has been demonstrated to be safe and beneficial after abdominal elective surgery. The aim of this randomized controlled trial is to assess the safety and benefits of EOF compared to traditional postoperative care (TPC) after abdominal emergency surgery.

METHODS

Patients assigned to the EOF group commenced a soft diet within 24 h after surgery. In the TPC group, a liquid diet was commenced upon passage of flatus or stool and then advanced to soft food. The primary endpoint was the complication rate. Secondary endpoints were severity of complications, mortality, gastrointestinal leaks, surgical-site infection, reoperation, diet intolerance, time to first flatus and stool, amount of food intake, postoperative discomfort, hospital stay, weight loss at the 15th postoperative day and incisional hernias.

RESULTS

A total of 295 patients assigned to EOF (n = 148) or TPC (n = 147) were analyzed. No significant differences were seen in the complications rates (EOF 45.3 % vs. TPC 37.4 %; p = 0.1). There was a significantly higher rate of vomiting with EOF (EOF 13.5 % vs. TPC 6.1 %; p = 0.03), with no differences in nasogastric tube reinsertion. EOF patients' food intake was proportionally lower for the first three meals than that of TPC patients (p < 0.01). Postoperative discomfort survey revealed more hunger in the TPC group (p < 0.01). There were no differences in postoperative ileus or length of hospital stay.

CONCLUSIONS

EOF was safe after abdominal emergency surgery. EOF was associated with more vomiting (treated easily and without patient discomfort) and less hunger than with TPC. No other EOF-related benefits could be demonstrated during this trial.

Cryptoglandular anal fistulas

BACKGROUND

Cryptoglandular anal fistula arises in 2 per 10 000 persons per year and is most common in young men. Improper treatment can result in fecal incontinence and thus in impaired quality of life.

METHOD

This S3 guideline is based on a systematic review of the pertinent literature.

RESULTS

The level of evidence for treatment is low, because relevant randomized trials are scarce. Anal fistulae are classified according to the relation of the fistula channel to the sphincter. The indication for treatment is established by the clinical history and physical examination. During surgery, the fistula should be probed and/or dyed. Endo-anal ultrasonography and magnetic resonance imaging are of roughly the same diagnostic value and may be useful as additional studies for complex fistulae. Surgical treatment is with one of the following operations: laying open, seton drainage, plastic surgical reconstruction with suturing of the sphincter, and occlusion with biomaterials. Only superficial fistulae should be laid open. The risk of postoperative incontinence is directly related to the thickness of sphincter muscle that is divided. All high anal fistulae should be treated with a sphincter-saving procedure. The various plastic surgical reconstructive procedures all yield roughly the same results. Occlusion with biomaterials yields a lower cure rate.

CONCLUSION

This is the first German S3 guideline for the treatment of cryptoglandular anal fistula. It includes recommendations for the diagnostic evaluation and treatment of this clinical entity.

Early versus traditional postoperative feeding in patients undergoing resectional gastrointestinal surgery: a meta-analysis

BACKGROUND

A meta-analysis evaluating surgical outcomes following nutritional provision provided proximal to the anastomosis within 24 hours of gastrointestinal surgery compared with traditional postoperative management was conducted.

METHODS

Databases were searched to identify randomized controlled trials comparing the outcomes of early and traditional postoperative feeding. Trials involving gastrointestinal tract resection followed by patients receiving nutritionally significant oral or enteral intake within 24 hours after surgery were included for analysis.

RESULTS

Fifteen studies involving a total of 1240 patients were analyzed. A statistically significant reduction (45%) in relative odds of total postoperative complications was seen in patients receiving early postoperative feeding (odds ratio [OR] 0.55; confidence interval [CI], 0.35 -0.87, P = .01). No effect of early feeding was seen with relation to anastomotic dehiscence (OR 0.75; CI, 0.39-1.4, P = .39), mortality (OR 0.71; CI, 0.32-1.56, P = .39), days to passage of flatus (weighted mean difference [WMD] -0.42; CI, -1.12 to 0.28, P = .23), first bowel motion (WMD -0.28; CI, -1.20 to 0.64, P = .55), or reduced length of stay (WMD -1.28; CI, -2.94 to 0.38, P = .13); however, the direction of clinical outcomes favored early feeding. Nasogastric tube reinsertion was less common in traditional feeding interventions (OR 1.48; CI, 0.93-2.35, P = .10).

CONCLUSIONS

Early postoperative nutrition is associated with significant reductions in total complications compared with traditional postoperative feeding practices and does not negatively affect outcomes such as mortality, anastomotic dehiscence, resumption of bowel function, or hospital length of stay.

Sphincteroplasty for fecal incontinence in the era of sacral nerve modulation

The role of sphincteroplasty in the treatment of patients with fecal incontinence due to anal sphincter defects has been questioned because the success rate declines in the long-term. A new emerging treatment for fecal incontinence, sacral nerve stimulation, has been shown to be effective in these patients. However, the success rate of sphincteroplasty may depend of several patient-related and surgical-related factors and the outcome from sphincteroplasty has been evaluated differently (with qualitative data) from that after sacral nerve stimulation (quantitative data using scoring systems and quality of life). Furthermore, the data available so far on the long-term success rate after sacral nerve modulation do not differ substantially from those after sphincteroplasty. The actual data do not support the replacement of sphincteroplasty with sacral nerve stimulation in patients with fecal incontinence secondary to sphincter defects.

Overlapping sphincteroplasty: is it the standard of care?

Anal sphincter injury secondary to obstetric trauma during vaginal delivery occurs in nearly one of every five women. Episiotomy, forceps delivery, and prolonged second stage of labor have all been shown to increase the risk of sphincter disruption. One third of these women will go on to have alterations in anal continence ranging from occasional incontinence to gas to severely debilitating incontinence to solid stool. Symptoms often arise many years after delivery, suggesting that factors such as nerve damage and progressive degeneration of muscle fibers contribute to incontinence. Surgical treatment of fecal incontinence secondary to sphincter injury has been varied and creative attempts have been made to find the repair with the greatest durability and fewest complications. Over the past few decades, overlapping sphincteroplasty emerged as such a repair with many reports of excellent short-term outcomes. Recently, however, published reports of long-term data reveal decreased function over time, causing many to question whether this repair truly is the best possible treatment. Several controversies have arisen. These include (1) optimum timing from injury to repair; (2) how best to perform the repair; (3) whether or not fecal diversion, either medical or surgical, is beneficial; (4) whether or not pudendal neuropathy predicts outcome; and finally, (5) if patient's age at the time of repair affects outcome. Randomized controlled trials are lacking, so any conclusions drawn from reviewing current literature must be evaluated with this in mind. Nonetheless, important information can be gleaned from the available literature and future studies designed with the hope of improving treatment for this life-altering condition.

[Current indications, surgical technique and results of anterior sphincter repair as a treatment of faecal incontinence]

Faecal incontinence is a high prevalence disease in the general population. This pathology is commonly under-estimated and causes a great impact on clinical status and on the quality of life of affected patients. The prevalence of faecal incontinence in several studies has been estimated between 2% and 15% of the general population. The prevalence increases if we study selected populations, such as elderly people. The main cause of faecal incontinence is obstetric anal sphincter damage. In the past years, the presence of incontinence due to sphincter lesions, especially the obstetric ones, was an absolute indication of anterior anal sphincter repair. Actually, after knowing the long term follow up results of this technique, as well as the evolving knowledge on faecal incontinence and the development of new diagnostic and therapeutic techniques, this technique might be selected for cases with large sphincter defects. However there is limited information in the current literature on indications, surgical technique and results of anterior sphincter repair. The aim of this review is to analyse scientific evidence on current indications, surgical technique features and results of anterior sphincter repair as a therapy for faecal incontinence, also giving our point of view on controversial issues. A bibliography search was undertaken using Medline database including articles published from January 1985 to January 2009.

Factors associated with failure of the artificial bowel sphincter: a study of over 50 cases from Cleveland Clinic Florida

PURPOSE

This study investigated the risk factors related to artificial bowel sphincter infection, complications, and failure.

METHOD

Complications may occur at any time after artificial bowel sphincter implantation. Early-stage complication is defined as any complications that occurred before artificial bowel sphincter activation, whereas late-stage complications are defined as any complications that occurred after device activation. Assessment of the outcomes of all artificial bowel sphincter operations included evaluation of factors related to patient demographics, operative procedures, and postoperative events.

RESULT

From January 1998 to May 2007, 51 artificial bowel sphincter implantations were performed in 47 patients (43; 84.3% female) with a mean age of 48.8 +/- 12.5 (range, 19-79) years and a mean incontinence score of 18 +/- 1.4 (range, 0-20). In 24 patients (54.5%), the etiology of incontinence was secondary to imperforate anus; 15 (24.2%) patients had obstetric injury or anorectal trauma. Twenty-three (41.2%) artificial bowel sphincter implantations became infected, 18 (35.3%) of which developed early-stage infection, whereas 5 (5.9%) had late-stage infection. One patient in the latter group had associated erosion, and two patient had fistula formation. Late-stage complications continued to increase with time. Multivariate analysis revealed that the time between artificial bowel sphincter implantation and first bowel movement and a history of perineal sepsis were independent risk factors for early-stage artificial bowel sphincter infection.

CONCLUSION

The time from implantation to first bowel movement and history of perineal infection were risk factors for early-stage artificial bowel sphincter infection and failure. Late-stage failures were more often the result of device malfunction and indicated the need for mechanical refinement.

Cloaca-like deformity with faecal incontinence after severe obstetric injury--technique and functional outcome of ano-vaginal and perineal reconstruction with X-flaps and sphincteroplasty

OBJECTIVE

Surgical technique and outcomes report.

SUMMARY BACKGROUND DATA

Three to eight per cent of vaginal deliveries are complicated by third- or fourth- degree perineal lacerations, resulting in a cloaca-like deformity in up to 0.3%. These three-dimensional defects result in often debilitating incontinence and symptoms similar to a rectovaginal fistula because of the lack of the distal rectovaginal septum.

METHOD

Between 2001 and 2006, 12 women (median age 37, range 20-57) with faecal incontinence and a postobstetric-injury-associated cloaca-like deformity underwent an ano-vaginal and perineal reconstruction with X-flaps and sphincteroplasty without primary faecal diversion.

RESULTS

The patients presented 13.0 +/- 2.9 years (range 0.5-29 years) after the obstetric injury. The median Cleveland Clinic Florida faecal incontinence score was 16 (range 12-19). In addition, one patient complained of vaginal discharge, another of dyspareunia. All patients had an open rectovaginal communication with a large anterior sphincter defects (mean 160.2 +/- 22.8 degrees, range 113-180). Resting/squeeze pressures were 28.0 +/- 4.4/63.2 +/- 8.1 mmHg, respectively. Pudendal neuropathy was present in five patients. The median length of hospital stay after surgery was 5.3 +/- 0.7 days. Three patients experienced a postoperative rectovaginal fistula, two of which closed spontaneously, whereas the third required faecal diversion and a bulbocavernosus flap. After surgical follow-up of 9.8.3 +/- 2.8 months and long-term follow-up of 38.9.0 +/- 6.9 months, all the patients were satisfied with regards to overall function, continence and cosmetic result.

CONCLUSION

Cloaca-like deformity resulting from severe obstetric injury is often not given appropriate attention. Reconstruction of the original anatomy is complex but achieves good results and does not require a prophylactic faecal diversion.

Enteral vs parenteral nutrition in reconstructive anal surgery--a prospective-randomized trial

OBJECTIVE

Early defecation after reconstructive anal surgery may influence the outcome negatively. Different methods are used to avoid bowel movements in the early postoperative period. We questioned whether stool behaviour is influenced by total parenteral nutrition as opposed to enteral nutrition with resorbable sip feeds. Furthermore, satisfaction of patients with each nutrition regime, cost differences and influence of the postoperative outcome were evaluated.

METHOD

Between January and October 2004, 32 patients were evaluated in a prospective randomized, surgeon-blinded trial. The parenteral group (PG, n = 16) received 1250 ml Nutriflex lipid basal (B. Braun Comp., Melsungen, Germany) intravenously. The enteral group (EG, n = 16) was offered a total amount of three cups of Clinutren fruit (Nestle Nutrition GmbH, Frankfurt, Germany), two boxes of OPD (oligopeptide diet) Elemental 028 extra (SHS, Liverpool, UK) and two cups of OPD Peptamen (Nestle Nutrition GmbH). Both groups received 1000 ml of isotonic cristalloid solution and were allowed to drink up to 1000 ml of tea or water per 24 h.

RESULTS

The satisfaction of patients was significantly higher in the EG. In regard to stool behaviour both groups showed no differences, in the number of bowel movements or in the time to the first postoperative defecation. Enteral feeding resulted in a minimum saving of 220 euros. Postoperative results in the case of plastic fistula closure did not differ between both groups.

CONCLUSIONS

Sufficient bowel confinement during the early postoperative period after anal reconstructive surgery may be achieved by using resorbable sip feeds rather than parenteral nutrition.

Obstetric anal sphincter injury: incidence, risk factors, and management

BACKGROUND AND AIMS

Obstetric sphincter damage is the most common cause of fecal incontinence in women. This review aimed to survey the literature, and reach a consensus, on its incidence, risk factors, and management.

METHOD

This systematic review identified relevant studies from the following sources: Medline, Cochrane database, cross referencing from identified articles, conference abstracts and proceedings, and guidelines published by the National Institute of Clinical Excellence (United Kingdom), Royal College of Obstetricians and Gynaecologists (United Kingdom), and American College of Obstetricians and Gynecologists.

RESULTS

A total of 451 articles and abstracts were reviewed. There was a wide variation in the reported incidence of anal sphincter muscle injury from childbirth, with the true incidence likely to be approximately 11% of postpartum women. Risk factors for injury included instrumental delivery, prolonged second stage of labor, birth weight greater than 4 kg, fetal occipitoposterior presentation, and episiotomy. First vaginal delivery, induction of labor, epidural anesthesia, early pushing, and active restraint of the fetal head during delivery may be associated with an increased risk of sphincter trauma. The majority of sphincter tears can be identified clinically by a suitably trained clinician. In those with recognized tears at the time of delivery repair should be performed using long-term absorbable sutures. Patients presenting later with fecal incontinence may be managed successfully using antidiarrheal drugs and biofeedback. In those who fail conservative treatment, and who have a substantial sphincter disruption, elective repair may be attempted. The results of primary and elective repair may deteriorate with time. Sacral nerve stimulation may be an appropriate alternative treatment modality.

CONCLUSIONS

Obstetric anal sphincter damage, and related fecal incontinence, are common. Risk factors for such trauma are well recognized, and should allow for reduction of injury by proactive management. Improved classification, recognition, and follow-up of at-risk patients should facilitate improved outcome. Further studies are required to determine optimal long-term management.

Early enteral nutrition within 24h of colorectal surgery versus later commencement of feeding for postoperative complications

BACKGROUND

The role of early postoperative enteral nutrition after gastrointestinal surgery is controversial. Traditional management consist of 'nil by mouth', where patients receive fluids followed by solids when tolerated. Although several trials have implicated lower incidence of septic complications and faster wound healing upon early enteral feeding, other trials have shown opposite results. The immediate advantage of caloric intake could be a faster recovery with fewer complications, to be evaluated systematically.

OBJECTIVES

To evaluate whether early commencement of postoperative enteral nutrition compared to traditional management (no nutritional supply) is associated with fewer complications in patients undergoing gastrointestinal surgery

SEARCH STRATEGY

We searched the Cochrane Central Register of Controlled Trials, PUBMED, EMBASE, and LILACS from 1979 (first RCT published) to March 2006. We manually scanned the references from the relevant articles, and consulted primary authors for additional information.

SELECTION CRITERIA

We looked for randomised controlled trials (RCT's) comparing early commencement of feeding (within 24 hours) with no feeding in patients undergoing gastrointestinal surgery. Early enteral nutrition is defined as all oral intakes (i.e. registered oral intake, supplemented oral feeding) and any kind of tube feeding (gastric, duodenal or jejunal) containing caloric content. No feeding is traditional management, defined as none caloric oral intake or any kind of tube feeding before bowel function. The definition 'no nutrition' includes non caloric placebo and water.

DATA COLLECTION AND ANALYSIS

The three authors independently assessed the identified trials, and extracted the relevant data using a specifically developed data extraction sheet. Primary end points of interest were: Wound infections and intraabdominal abscesses, postoperative complications such as acute myocardial infarction, postoperative thrombosis or pneumonia, anastomotic leakages, mortality, length of hospital stay, and significant adverse effects. We combined data to estimate the common relative risk of postoperative complications, and calculated the associated 95% confidence intervals. For analysis, we used fixed effects model (risk ratios to summarise the treatment effect) whenever feasible. The treatment effect on length of stay was estimated using effect size (presented as mean +/- SD). Some outcomes were not analysed but presented in a descriptive way. We used a random effects model to estimate overall risk ratio and effect size.

MAIN RESULTS

We identified thirteen randomised controlled trials, with a total of 1173 patients, all undergoing gastrointestinal surgery. Individual clinical complications failed to reach statistical significance, but the direction of effect indicates that earlier feeding may reduce the risk of post surgical complications. Mortality was the only outcome showing a significant benefit, but not necessarily associated with early commencement of feeding, as the reported cause of death was anastomotic leakage, reoperation, and acute myocardial infarction.

AUTHORS' CONCLUSIONS

Although non-significant results, there is no obvious advantage in keeping patients 'nil by mouth' following gastrointestinal surgery, and this review support the notion on early commencement of enteral feeding.

[Fecal incontinence]

Diagnosis and management of fecal incontinence requires exact understanding of the anatomic and pathophysiologic principles involved and demands a methodical, stepwise approach. Despite the potential appeal of surgical intervention, a considerable number of patients can be helped by comparatively simple, noninvasive measures. Initial treatment should be medical, including biofeedback in combination with a bowel management program. In the presence of a severely denervated pelvic floor, physiotherapeutic techniques rarely give rise to a satisfactory and long-lasting response. Obvious external sphincter defects and patients who failed medical management are treated surgically. Many injuries of the external sphincter can be treated by direct sphincter repair. If patients with intact external sphincters are unresponsive to medical measures, descending perineum and resultant idiopathic fecal incontinence will improve by radio-frequency delivery, sacral nerve stimulation, or postanal plication. Patients with complex neurologic disorders or extensive sphincter defects or who have undergone previous unsuccessful attempts at repair of the puborectalis itself should be considered for dynamic gracilis plastic or an artificial sphincter.

Bio-ecological control of perioperative and ITU morbidity

BACKGROUND

Perioperative and intensive therapy unit (ITU) morbidity and mortality has remained unchanged during the past several decades, and this at an unacceptably high level. It is most likely, in the EU countries annually, that more than 1 million people suffer severe sepsis and some 300,000 die. Pharmaceutical attempts at prevention and treatment have, despite extensive efforts, hitherto failed to improve outcome more significantly. Much supports the fact that sepsis and its severe consequences are results of a malfunctioning innate immune system, impaired by both lifestyle and disease. A series of mostly simple measures to prevent further deterioration of the immune system, and to boost it, is recommended. Among the measures recommended are some modifications of surgical and postoperative management: restricted use of antibiotics, attempts made to maintain salivation and GI secretions, omission of prophylactic gastric decompression, postoperative drainage and preoperative bowel preparation, restricted use of stored blood, avoidance of overload with nutrients, uninterrupted enteral nutrition but also tight blood glucose control, supply of antioxidants, administration of prebiotic fibre and probiotic lactic acid bacteria. Nutritional control of postoperative morbidity includes use of so-called synbiotics, e.g. a combination of bioactive lactic acid bacteria (LAB) and bioactive plant fibres.

RESULTS

Dramatic reduction in (in reality, almost abolishment of) septic morbidity is reported following supplementation of specific bioactive lactic bacteria in combination with prebiotic plant fibres, as tried in controlled studies in connection with extensive abdominal operations, liver transplantation and severe acute pancreatitis.

Anorectal abscess fistula: what do we know?

Anorectal abscess and fistula are intimately connected in anatomy, etiology, and morbidity. They have been extensively described, but only sparingly studied in randomized controlled trials. These trials, covering such issues as primary suture of abscess, whether or not to perform a fistulotomy at the time of abscess drainage, and comparison of fistulotomy and fistulectomy, are the focus of this article. Important gaps in our knowledge and subjects for new trials are also discussed.

Fecal incontinence

The treatment of fecal incontinence is particularly gratifying because the loss of fecal control has a devastating effect on a patients lifestyle. One must consider the myriad factors that influence bowel control to properly diagnose and treat each patient. Physiology testing, particularly the use of ultrasound, is essential when treatment extends beyond dietary and medical management. Recent reports suggest that the success of typical treatments may diminish with time. This may indicate a greater need in the future for innovative options such as the artificial bowel sphincter or sacral stimulation.

[Surgical treatment of anal incontinence]

Surgery is mandatory for fecal incontinence when medical treatments and reeducation by biofeedback are ineffective. Sphincter disruption is the most frequent cause. Sphincter repair with or without overlapping is indicated in the large majority of cases. Short-term results are good but result is not ever maintained with time. In case of failure, or when the defect concerns more than 180 degrees, it is necessary to use a substitutive technique. Artificial anal sphincter is often first proposed because of its apparent technical simplicity and because it is cheaper than dynamic graciloplasty. Results are excellent. Failures are due to local infection or device disfunction. Dynamic graciloplastie may be proposed in patients with severe perineal lesions, or failure of the other methods. Its results are also excellent, except for the patients having disordered rectal perception. Sacral nerve stimulation is limited to patients with idiopathic or neurologic incontinence. Because definitive implantation is done only following positive preoperative stimulation test, short-term results are very good.

Management of obstetric anal sphincter injury: a systematic review & national practice survey

BACKGROUND

We aim to establish the evidence base for the recognition and management of obstetric anal sphincter injury (OASI) and to compare this with current practice amongst UK obstetricians and coloproctologists.

METHODS

A systematic review of the literature and a postal questionnaire survey of consultant obstetricians, trainee obstetricians and consultant coloproctologists was carried out.

RESULTS

We found a wide variation in experience of repairing acute anal sphincter injury. The group with largest experience were consultant obstetricians (46.5% undertaking > or = 5 repairs/year), whilst only 10% of responding colorectal surgeons had similar levels of experience (p < 0.001). There was extensive misunderstanding in terms of the definition of obstetric anal sphincter injuries. Overall, trainees had a greater knowledge of the correct classification (p < 0.01). Observational studies suggest that a new 'overlap' repair using PDS sutures with antibiotic cover gives better functional results. However, our literature search found only one randomised controlled trial (RCT) on the technique of repair of OASI, which showed no difference in incidence of anal incontinence at three months. Despite this, there was a wide variation in practice, with 337(50%) consultants, 82 (55%) trainees and 80 (89%) coloproctologists already using the 'overlap' method for repair of a torn EAS (p < 0.001). Although over 50% of colorectal surgeons would undertake long-term follow-up of their patients, this was the practice of less than 10% of obstetricians (p < 0.001). Whilst over 70% of coloproctologists would recommend an elective caesarean section in a subsequent pregnancy, only 22% of obstetric consultants and 14% of trainees (p < 0.001).

CONCLUSION

An agreed classification of OASI, development of national guidelines, formalised training, multidisciplinary management and further definitive research is strongly recommended.

Lower genital tract and anal sphincter trauma

Anal incontinence occurs more frequently in women but its incidence is grossly underestimated because of under-reporting. Obstetric trauma is a major cause of anal incontinence but it is only recently that attention has been focused on this subject. Episiotomy and choice of instrument at assisted delivery have been subjected to randomized trials but some issues, such as the benefit of episiotomy in instrumental delivery, have not been addressed. The management of acute anal sphincter rupture is inconsistent and, although studies report on the sub-optimal outcome, evidence-based guidelines are currently awaiting publication. Training in perineal anatomy and repair is poorly taught, and there is wide variation in classification of perineal tears. Consequently anal sphincter tears are being missed at delivery and/or inappropriately managed. This chapter aims to highlight these issues based on previous and current teaching and to recommend a protocol based on the best available evidence.

Complications after colorectal surgery without mechanical bowel preparation

BACKGROUND

The current practice of mechanical bowel preparation (MBP) before colorectal surgery is questionable. Mechanical bowel preparation is unpleasant for the patient, often distressful, and potentially harmful. The results are often less than desired, increasing the risk of contamination. Cleansing the colon and rectum before surgery has never been shown in clinical trials to benefit patients. In animal experiments MBP has a detrimental effect on colonic healing.

STUDY DESIGN

To investigate the outcomes of colorectal surgery without MBP, we prospectively evaluated a consecutive series of patients who underwent resection and primary anastomosis of the colon and upper rectum, including emergency operations. One surgeon performed all operations. Endpoints were wound infection, anastomotic failure, and death. Late signs and symptoms that might be secondary to leakage of the anastomosis were considered as an anastomotic failure as well, during a followup of 1 year.

RESULTS

Two hundred fifty operations were performed, of which 199 (79.6%) were elective. Colectomies were left-sided in 65.6%. Anastomoses were ileocolic in 32%, colocolic in 20.8%, colorectal intraperitoneal in 34.4%, and extraperitoneal in 12.8%. No patient suffered from fecal impaction. Followup was complete in 97.2%. Eight patients (3.3%; 95% confidence interval [CI]: 1.4-6.4) developed superficial wound infections. In three patients there was leakage from an extraperitoneal colorectal anastomosis, in two of them after hospital discharge. The overall anastomotic failure rate was 1.2% (95% CI: 0.3-3.6). The in-hospital mortality rate was 0.8% (95% CI: 0.1-2.9) and was not related to abdominal or septic complications.

CONCLUSION

Mechanical bowel preparation is not a sine qua non for safe colorectal surgery.

Factors predictive of outcome after surgery for faecal incontinence

BACKGROUND

Surgical treatment of faecal incontinence may be categorized into procedures that either repair or augment the native sphincter mechanism or, alternatively, require construction of a neosphincter using either autologous tissue or an artificial device.

METHODS

This article reviews the currently available surgical options for the treatment of faecal incontinence, discusses factors predictive of outcome, and includes an algorithm for treatment.

RESULTS AND CONCLUSION

Procedures such as postanal repair, direct sphincter repair and reefing are seldom used. Overlapping repair has become the operation of choice in incontinent patients with isolated anterior defects in the external anal sphincter muscle, particularly in postobstetric trauma. Pudendal neuropathy seems to be a predictive factor of success, although this is not universally accepted. Total pelvic floor repair has been offered as a recent alternative. Neosphincter procedures include a gluteoplasty, non-stimulated and stimulated unilateral or bilateral graciloplasty and artificial bowel sphincter. The success and morbidity rates with the stimulated graciloplasty and artificial bowel sphincter appear similar. The newest alternative, sacral nerve stimulation, seems promising. In the final analysis, case selection and surgical judgement are probably the most important factors influencing the success of surgery for faecal incontinence. Presented as the Edinburgh Royal College of Surgeons invited lecture to the Association of Coloproctology of Great Britain and Ireland, Southport, UK, June 1999