Long-term results of ligation of intersphincteric fistula tract (LIFT) for fistula-in-ano

Is the ligation of the intersphincteric fistula tract (LIFT) procedure truly a sphincter preserving procedure for anal fistula? A scoping review of the literature

INTRODUCTION

The ligation of the intersphincteric fistula tract (LIFT) procedure has garnered popularity with its success rates and purported sphincter-continence preservation. However, there remains a paucity in the literature on the objective evaluation of sphincter integrity and fecal continence after the LIFT procedure.

OBJECTIVES

The present study undertakes a scoping review to systematically explore and map the published literature, to evaluate the sufficiency of data on the impact on continence in patients after the LIFT procedure.

DESIGN

A systematic search of MEDLINE, PubMed, EMBASe, CINAHL was performed from January 2007 to April 2020 and 597 publications were identified. Forty-two satisfied the inclusion and exclusion criteria. We performed a scoping review in accordance to the PRISMA-ScR guidelines.

RESULTS

Only 3 (7.1%) of publications were randomized controlled trials, of which just 1 (2.4%) measured incontinence as a primary outcome. Continence was measured both pre- and post-LIFT in 30 (71.4%), of which 19 (45.2%) had a fixed protocol for continence assessment, which was heterogeneous between the studies. Continence was assessed using subjective scoring systems in 27 (64.3%) and objective measurement was performed in just 6 (14.3%). No studies performed post-operative anatomical assessment of the anal sphincter complex.

CONCLUSIONS

Long-term continence in post-LIFT patients is not supported with adequately powered prospective longitudinal trials using rigorously protocoled pre- and post-operative assessment of continence. Future research that focuses on a combination of objective assessment using anal manometry as well as anatomical assessment of the sphincter complex on top of subjective evaluation is needed before we can be certain if LIFT is indeed a sphincter and continence preserving technique.

Mucosal advancement flap versus ligation of the inter-sphincteric fistula tract for management of trans-sphincteric perianal fistulas in the elderly: a retrospective study

PURPOSE

There is no consensus on the standard approach for trans-sphincteric perianal fistulas (TPAF) in the elderly population. The most commonly used sphincter-saving procedures are ligation of the inter-sphincteric fistula tract (LIFT) and mucosal advancement flap (MAF). We aimed to evaluate the incidence and risk factors for recurrence and incontinence in elderly patients with TPAF using both approaches.

METHODS

This retrospective study included 257 patients who underwent LIFT (136 patients) or MAF (121 patients) for de novo and cryptoglandular TPAF between July 2018 and July 2021. Recurrent fistulas were clinically and radiologically detected using MRI. Postoperative incontinence was evaluated using the Wexner score and anorectal manometry. Logistic regression analysis was used to detect the risks of recurrence and incontinence.

RESULTS

The median ages of the patients were 68 (64, 74) and 68 (65, 74) years in the LIFT and MAF groups, respectively. Higher recurrence rates were observed after LIFT (17 (12.5%)) than after MAF (13 (10.7%)), but the difference was not statistically significant (P = 0.662). Postoperative incontinence was observed in 18 patients (13.2%) and seven patients (5.8%) in the LIFT and MAF groups, respectively (P = 0.044). The predictors for fistula recurrence were smoking (OR, 75.52; 95% CI, 1.02 to 5611.35; P = 0.049), length of tract (OR, 17.3; 95% CI, 1.49 to 201.13; P = 0.023), and CD classification (OR, 7.08; 95% CI, 1.51 to 33.14; P = 0.013). A low Charlson comorbidity index score (≤ 5) (OR, 0.68; 95% CI, 0.47 to 0.99; P = 0.046) and high postoperative mean squeeze anal pressure (OR, 0.97; 95% CI, 0.95 to 0.99; P = 0.001) were significant factors associated with reduced risk of incontinence. In particular, LIFT was associated with a significantly higher risk of incontinence than MAF (OR, 2.089; 95% CI, 1.006 to 4.33; P = 0.04).

CONCLUSIONS

The healing rates of MAF and LIFT procedures did not differ significantly; however, continence was significantly better after MAF. MAF should be added to the guidelines as a good option for the treatment of TPAF in elderly patients.

TRIAL REGISTRATION

The study was registered as a clinical trial www.

CLINICALTRIALS

gov (NCT06616662).

Ligation of the intersphincteric fistula tract (LIFT) for high transsphincteric fistulas: a double-center retrospective study with long-term follow-up

PURPOSE

This study aimed to evaluate the long-term efficacy of the ligation of the intersphincteric fistula tract (LIFT) procedure in treating high transsphincteric fistulas.

METHODS

We conducted a retrospective study to evaluate the success rate of LIFT treatment in 82 patients with high transsphincteric fistulas involving at least one-third of the external sphincter. This study was carried out across 2 centers from November 2009 to February 2023.

RESULTS

All patients underwent successful surgery with a median operative time of 48.9 minutes (range, 20-80 minutes), and no intraoperative or postoperative complications were reported. The median follow-up duration was 85.5 months (range, 4-120 months), with 5 patients (6.1%) lost to follow-up. Treatment was successful in 62 patients, whose symptoms disappeared and both the external opening and the intersphincteric incision completely healed, yielding an overall efficiency rate of 80.5%. There were 15 cases (19.5%) of treatment failure, including 6 (7.8%) that converted to intersphincteric anal fistula and 9 (11.7%) that experienced persistent or recurrent fistulas. Only 1 patient reported minor overflow during the postoperative follow-up, but no other patients reported any significant discomfort. There were no statistically significant differences between patients with surgical success and those with treatment failure in terms of fistula length, history of previous abscess or anal fistula surgery, number of external orifices or fistulas, and location of fistulas (all P>0.05).

CONCLUSIONS

LIFT is a safe and effective sphincter-preserving procedure that yields satisfactory healing outcomes and has minimal impact on anal function.

A Comparison of Laser and Fistulotomy Techniques in the Treatment of Fistula-in-Ano

Background Anal fistulas are a common complication of perianal abscesses. The treatment of anal fistulas is challenging, with persistent and high recurrence rates. The aim of this study was to evaluate the efficacy and cost-effectiveness of laser ablation compared to fistulotomy in the treatment of anal fistulas. Materials and methods The patients were examined for external and internal openings of the fistula, its number, length, type, relationship with the sphincters, and any previous history of abscess or proctological surgery. The surgical procedures, complications, incontinence, recurrence, and recovery time were evaluated and compared between the two groups. The laser ablation group received an intermittent laser application at a wavelength of 1470 nm and 10 watts for three seconds, while the fistulotomy group underwent cutting of the fistula tract with electrocautery while keeping a stylet in place. Results A total of 253 patients were included in this retrospective study, with 149 patients undergoing fistulotomy and 104 patients undergoing laser ablation. The patients were evaluated based on the type, number, and location of internal and external openings, and the length of the fistula tract according to the Parks classification. The mean follow-up period was 9.0±4.3 months. The results showed that the laser group had a shorter time to return to work and less postoperative pain compared to the fistulotomy group. However, the recurrence rate was higher in the laser group. The recurrence rate was also found to be higher in patients with low transsphincteric fistulas and in patients with diabetes mellitus. Conclusion Our study findings indicate that while laser ablation may be associated with less pain and quicker recovery time, it may also have a higher recurrence rate compared to fistulotomy. We believe that laser ablation is a valuable option for surgeons to consider early on in the treatment process, especially in cases where fistulotomy is not suitable.

The development of a minimum dataset for MRI reporting of anorectal fistula: a multi-disciplinary, expert consensus process

There are a range of sphincter-preserving procedures available to treat anorectal fistula, some of which can be precluded, or rendered more optimal by specific features of fistula anatomy. Magnetic resonance imaging (MRI) is the gold standard modality for assessing anorectal fistula. To maximise clinical utility, the MRI report should accurately describe these clinically relevant features. We aimed to develop a minimum dataset for reporting MRI of anorectal fistula, in order to improve the assessment and management of these patients. A longlist of 70 potential items for the minimum dataset was generated through systematic review of the literature. This longlist was presented to radiologists, surgeons and gastroenterologists in an online survey to understand the features that shape current clinical practice. The longlist and survey results were then presented to an expert consensus panel to generate the final minimum dataset through discussion and anonymous voting. The final minimum dataset details the general characteristics, features of the internal and external openings, path of the fistula through the sphincters and any associated extensions and collections that should be described in all MRI reports for anal fistula. Additional surgical and perianal Crohn's disease subsets were developed to indicate the features that aid decision-making for these patients, in addition to a minimum dataset for the clinical request. This study represents a multi-disciplinary approach to developing a minimum dataset for MRI reporting of anal fistula, highlighting the most important features to report that can assist in clinical decision-making. KEY POINTS: • This paper recommends the minimum features that should be included in all MRI reports for the assessment of anal fistula, including Parks classification, number of tracts, features of the internal and external opening, path of the tract through the sphincters, the presence and features of extensions and collections. • Additional features that aid decision-making for surgery or in the presence of Crohn's disease have been identified. • The items that should be included when requesting an MRI are specified.

Treating highly complex anal fistula with a new method of combined intraoperative endoanal ultrasonography (IOEAUS) and transanal opening of intersphincteric space (TROPIS)

Introduction

Treatment of highly complex anal fistula is still a profound test for a specialist colorectal surgeon. The reasons are directly related to recurrence and incontinence.

Aim

To evaluate the clinical results of a combined method of intraoperative endoanal ultrasonography (IOEAUS) and transanal opening of the intersphincteric space (TROPIS).

Material and methods

This study retrospectively included 48 patients with complex anal fistula, all of whom underwent new surgical methods. This operation mainly consists of two steps. Firstly, the type of anal fistula was determined by endoanal ultrasonography (EAUS) or magnetic resonance imaging (MRI) before the operation. Then the TROPIS procedure was performed with the help of EAUS, and the decision on whether a drainage seton should be placed depended on the condition of the tract. If there were secondary tracts, they were found and the same was done.

Results

The median follow-up was 12 months. Two (4.1%) patients experienced recurrence. Four (8.3%) patients did not have primary healing. All 6 patients underwent the same procedure again, and three recovered completely. So total successful fistula healing was observed in 45 (93.7%). There were no major complications and no significant deterioration in anal function and incontinence postoperatively.

Conclusions

Combined IOEAUS and TROPIS is an effective procedure in the treatment of highly complex anal fistula, and it may offer a new means for other operations.

The Ligation of the Intersphincteric Fistula Tract (LIFT) Technique for Simple and Complex Fistula-in-ano

Background Fistula-in-ano is one of the most common clinical condition encountered in a surgical outpatient department. Many treatment modalities have been described with variable outcomes but gold standard surgical treatment is yet to be agreed upon. The aim of the present study is to evaluate the treatment outcomes of ligature of intersphincteric fistula tract (LIFT) technique in the treatment of simple and complex fistula-in-ano with the primary objective of recurrence rate and broad objective of other postoperative complications during the period of study and after long-term follow-up.

Methods It is a retrospective study of prospectively collected data from the patients who have been operated for fistula-in-ano using the LIFT technique at our institute from February 2018 to March 2020 and followed-up until September 2020.

Results A total of 56 patients with fistula-in-ano were treated with the LIFT procedure during the study period, of which 20 patients had simple fistula and 36 had complex fistula. A success rate of 83% was obtained with completely healed fistulas in 46 patients. No patient developed postoperative incontinence.

Conclusion Ligature of intersphincteric fistula tract is an effective treatment modality for fistula-in-ano with less procedure-related morbidity, but it is associated with a higher recurrence rate in simple fistula than in complex fistula.

External sphincter-sparing anal fistulotomy (ESSAF): a simplified technique for the treatment of fistula-in-ano

BACKGROUND

Fistula-in-ano due to cryptoglandular disease is a common condition. While a simple anal fistula can be treated successfully by a fistulotomy, the risk of potential damage to the anal sphincters and subsequent poor functional outcomes persist in a large portion of patients with complex fistulae. Several sphincter-preserving treatment procedures have been described for complex fistulae over the past 3 decades, with variable results and complication rates, and no procedure is proven to be superior to the others. We developed external sphincter-sparing anal fistulotomy (ESSAF), a reproducible simple modification of the ligation of intersphincteric fistula tract (LIFT) technique for the treatment of complex fistula-in-ano.. The aim of the present study was to describe the technique and our outcomes.

METHODS

This was a retrospective review of all patients who underwent ESSAF for a complex anal fistula at our institution from January 2014 to December 2019. The primary outcome measure of this study was the primary fistula healing rate. Secondary outcome measures included fecal and/or gas incontinence and postoperative complications. During the ESSAF procedure, the mucosa and skin overlying the fistula tract are incised to allow complete exposure of the sphincter complex. Then the internal sphincter muscle fibers overlying the tract are divided and the tract is meticulously curetted and debrided. Next, the internal opening of the tract traversing the external sphincter muscle is suture-ligated with absorbable sutures. Then, a minimal amount of mucosa is advanced and the incision is partially closed with absorbable sutures, while its external portion is left open for drainage.

RESULTS

Fifty-nine patients [43 males, median age was 50 years (range 36-63 years)] underwent ESSAF for complex anal fistula during the study period. Mean follow-up was 12 ± 14.7 months. Of the 59 patients, 42 (71.2%) experienced fistula closure, with a median healing time of 8 weeks (IQR 4-16 weeks). None of the patients developed significant anal incontinence following the procedure. One patient (1.7%) suffered from soiling and another patient (1.7%) developed postoperative bleeding. There were no infectious complications. Of the 17 patients (28.8%) who failed to heal successfully, 9 (15.2%) did not heal primarily and 8 (16%) experienced recurrence after complete healing. Thirteen (76%) of these patients underwent reoperation with complete recovery after ESSAF (n = 4), fistulotomy (n = 8) or endorectal advancement flap (ERAF) (n = 1). Overall ESSAF initiated recovery in 93.2% of the patients.

CONCLUSIONS

ESSAF is a feasible, safe, reproducible and effective sphincter-sparing procedure for the treatment of complex anal fistulae.

LIFT: a feasible option for primary and recurrent fistulas

BACKGROUND

The development of a surgical solution for anal fistulas with minimal recurrence and morbidity remains a challenge. Ligation of the intersphincteric fistula tract (LIFT), however, is a sphincter sparing technique that provides complete resolution of the transsphincteric fistula as well as minimizing recurrence and fecal incontinence. Our goal is to evaluate the efficacy of fistula tract ligation for primary and recurrent fistulas.

METHODS

A retrospective single-center case study was conducted from data between 2015 and 2019 in a large district hospital in Antwerp, Belgium. Patients who underwent LIFT were included. Demographic patient data as well as primary outcome during the follow-up period were collected. A systematic literature review and analysis was conducted with terms [ANAL FISTULA] [TREATMENT] [LIFT] [LIGATION OF INTERSPHINCTERIC FISTULA]. Primary healing and recurrence associated with surgical modifications were investigated.

RESULTS

4 out of 25 patients presented with early failure (84% primary success rate) after a median follow-up period of 7 months. The median time until recurrence was 105 days. The success rate after a redo ligation was 100%. Twenty-eight studies were included for review and divided into three groups depending on the technical variation of the used technique. The success rate was 74.2% for the LIFT group, 72.9% in the LIFT + group, and 77.5% in the mLIFT group p = .92.

CONCLUSION

LIFT is a feasible treatment option for primary and recurrent fistulas, with excellent success rates where fistula characteristics rather than chosen technique dictate the surgical outcome.

Ligation of intersphincteric fistula tract (LIFT) with or without injection of platelet-rich plasma (PRP) in management of high trans-sphincteric fistula-in-ano: Short-term outcomes of a prospective, randomized trial

BACKGROUND

Success rate after ligation of the inter-sphincteric fistula tract ranges from 40% to 75%. Platelet-rich plasma is hypothesized to improve healing by slowly releasing growth factors. The objective of the study was to compare the efficacy and outcome of ligation of the inter-sphincteric fistula tract plus platelet-rich plasma local injection versus ligation of the inter-sphincteric fistula tract alone in the management of high trans-sphincteric anal fistula in regards to postoperative pain, time for healing, morbidity, fistula closure rate, recurrence, and quality of life.

METHODS

This was a prospective randomized trial. Patients with trans-sphincteric anal fistulas involving >50% of anal sphincters were included. Patients were randomly assigned to either ligation of the inter-sphincteric fistula tract plus platelet-rich plasma or ligation of the inter-sphincteric fistula tract (49 in each group). The primary endpoints were successful complete fistula closure and duration needed for healing. Secondary endpoints were morbidity, recurrence after 1 year of follow-up, postoperative pain, and quality of life.

RESULTS

Complete primary healing was recorded in 42 patients in the ligation of the inter-sphincteric fistula tract plus platelet-rich plasma group and 32 patients in the ligation of the inter-sphincteric fistula tract group, and the difference was statistically significant (P = .03). The mean time to complete healing after ligation of the inter-sphincteric fistula tract plus platelet-rich plasma was significantly shorter than after ligation of the inter-sphincteric fistula tract alone (15.7 ± 4 days vs 21.6 ± 5.4 days; P = .03). One year after complete healing of anal fistula, recurrence was recorded in 4/42 patients in the ligation of the inter-sphincteric fistula tract plus platelet-rich plasma group and 3/32 patients in the ligation of the inter-sphincteric fistula tract group with no statistically significant difference (P = .99). Patients in the ligation of the inter-sphincteric fistula tract plus platelet-rich plasma group had significantly lower pain scores after both 1 and 7 days. Quality of life and level of happiness were significantly better 1 month after ligation of the inter-sphincteric fistula tract plus platelet-rich plasma.

CONCLUSION

Ligation of the inter-sphincteric fistula tract plus platelet-rich plasma for the treatment of high trans-sphincteric fistula-in-ano is a safe modality with significantly higher successful healing rate, shorter healing time, and less postoperative pain compared with ligation of the inter-sphincteric fistula tract alone. Ligation of the inter-sphincteric fistula tract plus platelet-rich plasma does not improve the rate of recurrence; however, it results in significantly higher short-term quality of life.

High failure rates following ligation of the intersphincteric fistula tract for transsphincteric anal fistulas: are preoperative MRI measurements of the fistula tract predictive of outcome?

AIM

Treatment of transsphincteric fistulas (TSFs) with fistulotomy after an indwelling seton is tempered by risks of incontinence and litigation. Thus, ligation of the TSF tract has been popularized as an alternative option. We previously reported on 107 patients who underwent ligation of the intersphincteric fistula tract (LIFT), with a 46% failure rate. Posterior fistula was the only predictor of recurrence. The aim of the present work was to investigate whether the length, width or depth of the fistula measured on preoperative MRI was correlated with recurrence.

METHOD

Following institutional review board approval, a retrospective analysis of our prospective Complex Anal Fistula Database from 1 January 2011 to 31 August 2019 was performed. Patients with TSF who underwent preoperative MRI and LIFT were included. Fistula location was classified as anterior, posterior or lateral. MRI measurements of fistula length, width and depth (in the intersphincteric groove) were performed. The type and rate of postoperative recurrence were analysed.

RESULTS

173 patients underwent MRI for an anal fistula; of these 40 underwent LIFT and 22/40 (55%) had preoperative MRI. There was no difference in the length, width or depth of anterior (n = 9), posterior (n = 7) or lateral (n = 6) fistula tracts. The overall recurrence rate was 9/22 (41%). Posterior TSFs had the highest recurrence rate (5/7, 71%).

CONCLUSION

The mean length, width, and depth of the fistula tract, measured at the preoperative site of LIFT in the intersphincteric groove, did not correlate with recurrence regardless of fistula location.

A Multicenter Randomized Controlled Trial Comparing Safety, Efficacy, and Cost-effectiveness of the Surgisis Anal Fistula Plug Versus Surgeon's Preference for Transsphincteric Fistula-in-Ano: The FIAT Trial

OBJECTIVE

To undertake a randomized comparison of the Biodesign Surgisis anal fistula plug against surgeon's preference in treating cryptoglandular transsphincteric fistula-in-ano.

SUMMARY BACKGROUND DATA

The efficacy of the Biodesign Surgisis anal fistula plug in healing anal fistulae is uncertain.

METHODS

Participants were randomized to the fistula plug with surgeon's preference (advancement flap, cutting seton, fistulotomy, Ligation of the Intersphincteric Fistula Tract procedure). The primary outcome was faecal incontinence quality of life (FIQoL) at 12-months. Secondary outcomes were fistula healing, incontinence rates, and complication and reintervention rates.

RESULTS

Between May 2011 and March 2016, 304 participants were randomized to fistula plug or surgeon's preference. No differences were seen in FIQoL between the 2 groups at 12 months. Clinical fistula healing was reported in 66/122 (54%) of the fistula plug and 66/119 (55%) of the surgeon's preference groups at 12 months. Fecal incontinence rates improved marginally in both the groups. Complications and reinterventions were frequent, with significantly more complications in the fistula plug group at 6-weeks (49/142, 35% vs 25/137, 18%; P=0.002). The mean total costs were £2738 (s.d. £1151) for the fistula plug and £2308 (s.d. £1228) for the surgeon's preference group (mean difference +£430, P=0.0174). The average total quality adjusted life years (QALYs) gained was marginally higher in the fistula plug group. The fistula plug was 35% to 45% likely to be cost-effective across a willingness to pay threshold of £20,000 to £30,000 / QALY.

CONCLUSIONS

The Biodesign Surgisis anal fistula plug is associated with similar FIQoL and healing rates to surgeon's preference at 12 months. Higher costs and highly uncertain gains in QALYs mean that the fistula plug may not be considered as a cost-effective treatment in the UK NHS.

Systematic review of efficacy of LIFT procedure in crpytoglandular fistula-in-ano

Background fistula-in-ano is a common problem. Ligation of intersphincteric fistula tract (LIFT) is a new addition to the list of operations available to deal with complex fistula-in-ano.

Objective we sought to qualitatively analyze studies describing LIFT for crpytoglandular fistula-in-ano and determine its efficacy.

Data sources MEDLINE (Pubmed, Ovid), Embase, Scopus and Cochrane Library were searched.

Study selection all clinical trials which studied LIFT or compared LIFT with other methods of treatment for anal fistulae, prospective observational studies, clinical registry data and retrospective case series which reported clinical healing of the fistula as the outcome were included. Case reports, studies reporting a combination with other technique, modified technique, abstracts, letters and comments were excluded.

Intervention the intervention was ligation of intersphincteric fistula tract in crpytoglandular fistula-in-ano.

Main outcome measure primary outcome measured was success rate (fistula healing rate) and length of follow-up.

Advances in the Treatment of Anal Fistula: A Mini-Review of Recent Five-Year Clinical Studies

Anal fistula, with its complicated pathogenesis, has been considered as a clinical challenge for centuries. The risk of frequent recurrence and incontinence constitutes a considerable threat in the long-term treatment of anal fistula. In this work, we narratively reviewed the scientific literature of new techniques that have been used for anal fistula treatment over the recent 5 years, objectively evaluated the pros and cons of each technique on the basis of clinical outcomes, and tried to disclose the effective strategies for anal fistula treatment. Up to date, surgery is the main method used for treating anal fistula, but there is no simple technique that can completely heal complex anal fistula. In the course of surgery treatment, the healing outcome, and the protection of anal function should be weighed comprehensively. Among the innovative techniques that have emerged in recent years, combined techniques based on drainage Seton and LIFT-plug seem to be the relatively effective therapies, but their effectiveness requires more multi-center prospective randomized controlled trials with large sample size and long-term follow-up to be validated.

Comparative study between intersphinecteric ligation of perianal fistula versus conventional fistulotomy with or without seton in the treatment of perianal fistula: A prospective randomized controlled trial

Background

Fistula-in-ano is one of the most common benign anal conditions in daily surgical practice.The goals in the treatment of an anal fistula are to eradicate sepsis and to eliminate the primary fistula opening, any associated tracts, and any secondary openings without a change in continence. Conventional fistulotomy (lay open of the fistula tract) is a commonly used procedure and is still relied on by the majority of surgeons as the gold standard for the treatment of perianal fistula. Ligation of the Intersphincteric Fistula Tract (LIFT) is a new sphincter-preserving technique for the treatment of anal fistula.

Objective

To compare the efficacy of open fistulotomy and ligation of intersphincteric fistula tract (LIFT) procedure based on its post-operative outcomes.

Patients and methods

The Present study is A prospective randomized controlled trial which included 30 patients presented with low transsphincteric perianal fistula 27 (90%) males and 3 (10%) females divided into two groups each group consisted of 15 patients. Group, I subjected to inter sphincteric ligation of perianal fistula (LIFT) procedure. Group II patients subjected to conventional fistulotomy. The study lasts 2 years from May 2017 to May 2019 with Follow up for 6 months duration. Operative time in our study was significantly higher in group (I) Managed by LIFT with a mean of 32.53 min than group (II) managed by fistulotomy with a mean of 20.87mins. Wound healing was faster in a group (I) managed by LIFT than group (II) managed by fistulotomy, as the mean time for complete wound healing was (4.53) weeks after LIFT and (5.67) weeks after fistulotomy.

Results

There was no case of incontinence after performing the LIFT technique in all our patients in group I. there were 2 cases of incontinence to gases only after fistulotomy in group II. The healing rate after LIFT was 80% (12/15 patients). The healing rate after fistulotomy was 93.3% (14/15 patients).

Conclusion

LIFT procedure is an effective and preferred sphincter-saving technique for fistula-in-ano with shorter healing time and lower incidence of postoperative anal incontinence, as compared to open fistulotomy.

LIFT procedure for posterior fistula-in-ano. Are outcomes good enough? A systematic review and meta-analysisis of observational studies

INTRODUCTION

Efficacy of the ligation of intersphincteric fistula tract (LIFT) procedure for posterior fistula-in-ano remains under debate. However, there is scarcity of quality evidence analysing this issue. Thus, the aim of this study is to evaluate outcomes of LIFT surgery in patients with posterior anal fistula.

MATERIAL AND METHODS

Systematic review and meta-analysis to evaluate efficacy of LIFT procedure for posterior anal fistula. MEDLINE (PubMed), EMBASE, Scopus, Web of Science, Cochrane Library and Google Scholar data sources were searched for key-words (MeSH terms): "LIFT" OR "Ligation of the intersphincteric fistula tract" AND "posterior anal fistula" OR "posterior fistula-in-ano". Original, observational and experimental, non-language restriction studies published from January 2000 to March 2020 and reporting outcomes on LIFT procedure for posterior anal fistula were reviewed. Quality and potential biases were assessed using Newcastle-Ottawa scale, following AHRQ recommendations. Additional sensitivity analysis and publication bias evaluation (Beg and Egger's tets) were performed.

RESULTS

No significant differences were found in recurrence rate among patients undergoing LIFT procedure for posterior fistula-in-ano in contrast to other locations (OR 1.36 [IC 95% 0.60-3.07]; p=.46). I² test value was 77%, expressing a fair heterogeneity among included studies. The weighed median for overall recurrence was 37.8% (RI 18.3-47.7%); with a weighed median of 47.1% (RI 30.7 - 63.7%) and 36.3% (RI 15.8-51.3%) (p=.436) respectively for recurrence after LIFT for posterior fistula and fistula in other locations. There was not clear evidence about the sample size ("n") of included studies nor the disparities in quality assessment of those, could justify the observed heterogeneity. No significant publication bias was found.

CONCLUSION

This systematic review and meta-analysis suggests that there are no clear data in the literature for not performing the LIFT procedure in posteriorly located fistulas.

A prospective evaluation of the outcome of submucosal ligation of fistula tract

AIM

Fistula-in-ano (FIA) is an anomalous passage between perianal skin and the anal canal or the rectum that presents many management difficulties. Ligation of intersphincteric fistula tract (LIFT) was introduced as a cost-effective sphincter-saving procedure with a reported success rate of 94.4%. Unfortunately, this procedure is technically challenging, and recently submucosal ligation of fistula tract (SLOFT), a simplification of LIFT, was proposed. Our aim was to assess the SLOFT technique over a longer follow-up period to determine its effectiveness.

METHOD

A prospective observational study was performed in 47 patients with FIA treated by SLOFT from September 2017 to February 2019.

RESULTS

There were 47 patients, of whom 33(70.2%) were men. The median age was 39 years (range 30-50 years). All the patients had primary FIA of cryptoglandular origin. The patients were followed up for 1 year and were postoperatively assessed at 2, 4, 12 and 24 weeks and 1 year. The median body mass index was 27.3 kg/m² (range 24.3-29.4 kg/m² ) and the median duration of surgery was 15 min (range 13-20 min). Most (83.0%) of the fistulas were trans-sphincteric. The success rates at the end of 24 weeks and 1 year were 87.2% and 80.9%, respectively. No postoperative incontinence was recorded.

CONCLUSION

In our series the success rate of SLOFT was 80.9%. There were no sphincter-related complications. Repeat SLOFT was feasible for cases of recurrence. Therefore, SLOFT should be considered an alternative sphincter-saving procedure to LIFT for the management of FIA.

Video-Assisted Ligation of Intersphincteric Fistula Tract for Complex Anal Fistula: Technique and Preliminary Outcomes

BACKGROUND

Sphincter-preserving operations have been increasingly used for treating anal fistula. However, their success rates remain modest in complex anal fistulas.

OBJECTIVE

This study aimed to report outcomes of video-assisted ligation of intersphincteric fistula tract (a procedure combining video-assisted anal fistula treatment and ligation of intersphincteric fistula tract) for treating complex anal fistulas and to compare its results with conventional ligation of intersphincteric fistula tract.

DESIGN

A review of prospectively collected data from October 2014 to December 2017 was performed.

SETTINGS

The study was conducted at a large tertiary hospital in Thailand.

PATIENTS

All patients with primary or recurrent complex anal fistulas undergoing video-assisted ligation of intersphincteric fistula tract were included. Patients with anal fistula related to malignancy, Crohn's disease, tuberculosis, or acute abscess were excluded.

MAIN OUTCOME MEASURES

Healing as defined by an absence of fistula or drainage from an external opening and complete epithelialization of the external opening were measured.

RESULTS

This study included 103 patients with a median age of 47 years. The primary healing rate was 84.5% at a median follow-up of 28 months (range, 15-38 mo). Primary healing rates of anterior high transsphincteric fistula, semi-horseshoe fistula, and horseshoe fistula were 88% (44 of 50 cases), 77% (30 of 39 cases), and 93% (13 of 14 cases). Median time to healing was 4 weeks (range, 4-8 wk). Accordingly, the overall failure rate was 15.5%. None reported worse fecal incontinence postoperatively. Video-assisted ligation of intersphincteric fistula tract had a higher rate of primary healing for complex anal fistula than ligation of intersphincteric fistula tract (84.5% vs 63.4%; p < 0.001).

LIMITATIONS

This study is limited by its small sample size.

CONCLUSIONS

The outcomes of video-assisted ligation of intersphincteric fistula tract for complex anal fistulas are quite good. This technique has the potential to become another viable option of sphincter-preserving operation for complex anal fistulas. See Video Abstract at http://links.lww.com/DCR/B373. LIGADURA ASISTIDA POR VIDEO DEL TRACTO DE LA FÍSTULA INTERESFINTÉRICA PARA LA FÍSTULA ANAL COMPLEJA: TÉCNICA Y RESULTADOS PRELIMINARIES: Las operaciones de preservación del esfínter se han utilizado cada vez más para tratar la fístula anal. Sin embargo, sus tasas de éxito siguen siendo modestas en las fístulas anales complejas.Este estudio tuvo como objetivo informar los resultados de la ligadura asistida por video del tracto de la fístula interesfintérica (un procedimiento que combina el tratamiento de la fístula anal asistida por video y la ligadura del tracto de la fístula interesfintérica) para el tratamiento de las fístulas anales complejas y comparar sus resultados con la ligadura convencional de la fístula interesfintérica tracto.Se realizó una revisión de los datos recolectados prospectivamente desde Octubre de 2014 hasta Diciembre de 2017.El estudio se realizó en un gran hospital terciario en Tailandia.Se incluyeron todos los pacientes con fístulas anales complejas primarias o recurrentes sometidas a ligadura asistida por video del tracto de la fístula interesfintérica. Se excluyeron los pacientes con fístula anal relacionada con malignidad, enfermedad de Crohn, tuberculosis o absceso agudo.Curación definida por la ausencia de fístula o drenaje de la abertura externa y la epitelización completa de la abertura externa.Este estudio incluyó 103 pacientes con una mediana de edad de 47 años. La tasa de curación primaria fue del 84,5% con una mediana de seguimiento de 28 meses (rango 15-38). La tasa de curación primaria de la fístula transesfintérica alta anterior, la fístula semi-herradura y la fístula de herradura fue del 88% (44 de 50 casos), 77% (30 de 39 casos) y 93% (13 de 14 casos), respectivamente. El tiempo mediano hasta la curación fue de 4 semanas (rango 4-8). En consecuencia, la tasa de fracaso general fue del 15,5%. Ninguno informó peor incontinencia fecal después de la operación. La ligadura asistida por video del tracto de la fístula interesfintérica tuvo una mayor tasa de curación primaria para la fístula anal compleja que la ligadura del tracto de la fístula interesfintérica (84.5% vs 63.4%; p <0.001).Este estudio está limitado por su pequeño tamaño de muestra.Los resultados de la ligadura asistida por video del tracto de la fístula interesfintérica para fístulas anales complejas son bastante buenos. Esta técnica tiene el potencial de convertirse en otra opción viable de operación de preservación del esfínter para fístulas anales complejas. Consulte Video Resumen en http://links.lww.com/DCR/B373. (Traducción-Dr Yesenia Rojas-Khalil).

Complex Anal Fistula: Long-Term Results of Modified Ligation of Intersphincteric Fistula Tract=LIFT

Objectives:

The anal fistula is a permanent infectious tunnel formed between the anal canal and skin in the perianal region. Fistulas are treated by surgery at any stage. Many surgical methods have been reported to treat anal fistula. One of the promising surgical methods with a high success rate is ligation of the intersphincteric fistula tract, which is performed in anatomical spaces without damage to the internal and external sphincters. We evaluated the success rate of a modified ligation of the intersphincteric fistula tract procedure for complex anal fistulas in which the technical differences were minimized by the surgery being performed by the same surgical team.

Methods:

In this study, Data of the 56 patients were retrospectively collected. Data regarding patient history, visual and digital anal examination, Cleveland Clinic Florida Fecal Incontinence (CCF-FI) score, anal-phase pelvic magnetic resonance imaging (MRI), rectosigmoidoscopy or colonoscopy and anal manometry were recorded. The changes in data recorded during the preoperative and postoperative periods were compared in each other.

Results:

The mean age of the patients was 41±15.5 years. The number of patients for each fistula type compromised in this study was as follows in accordance with frequency: high transsphincteric fistula, high intersphincteric fistula, and horseshoe abscess. The fistula recurred in seven patients during postoperative follow-up and the success rate of modified LIFT was calculated as 87.5%. The change in the mean±SD preoperative and postoperative CCF-FI scores and anal pressure was not statistically significant.

Conclusion:

One promising advantage of the ligation of the intersphincteric fistula tract procedure is that it turns a complex fistula into a simple fistula that can be treated with minimal risk of sphincter damage.

Lift and VAAFT for high trans-sphincteric anal fistula: a single center retrospective analysis

PURPOSE

The management of complex anal fistulas remains a challenge, mainly due to the considerable risk of incontinence. We compared LIFT and VAAFT in the treatment of complex anal fistulas in terms of healing time, recurrence, continence, morbidity, and postoperative pain, focusing also on patients with local abscess at the time of surgery.

METHODS

We include all patients with high trans-sphincteric anal fistula even with abscess at the time of surgery. Anorectal manometry, endoanal ultrasound, Cleveland Clinic fecal incontinence score, VAS score, and number of previous fistula treatment were recorded. The clinical examination defined healing, insufficiency or recurrence of the fistula.

RESULTS

Fifty-four consecutive patients are undergoing surgery: 26 patients underwent LIFT and 28 underwent VAAFT. During the 18 months of follow-up there were no differences in terms of AM, CCFIS and VAS scores. Days of healing, failure, and recurrence rate were comparable in both groups. The subgroup of patients with local abscess undergoing LIFT showed worse results in terms of failure and recurrence rate (p < 0.05).

CONCLUSIONS

Both techniques are safe and effective and can offer long-term benefits. LIFT should not be used as a first treatment in high trans-sphincteric fistula with perianal abscess.

LIFT and BioLIFT: a 10-Year Single-Centre Experience of Treating Complex Fistula-In-Ano With Ligation of Intersphincteric Fistula Tract Procedure With or Without Bio-prosthetic Reinforcement (BioLIFT)

PURPOSE

To assess the outcome of ligation of intersphincteric fistula tract (LIFT) and bioprosthetic graft (BioLIFT) in the management of transsphincteric perianal fistula.

METHODS

A single-institution retrospective analysis of all patients undergoing LIFT and BioLIFT from January 2009 to June 2018 was performed. Only patients who had LIFTs and BioLIFT performed as their primary sphincter-preserving procedure was included. Primary outcome measured was primary healing. Secondary outcomes measured were secondary healing, morbidity, time to recurrence, and pre- and post-operative anorectal manometry. Chi-square analysis was used to determine predictive factors.

RESULTS

A total of 116 patients were identified. One hundred five had LIFT and 11 had BioLIFT. The total primary healing rate was 60.3% (62.9% and 34.9% for LIFT and BioLIFT respectively). The overall secondary healing rate was 80.2% (80.0% and 81.9% for LIFT and BioLIFT respectively). There was no inpatient morbidity or post-procedural faecal incontinence reported. There was no significant change in the pre- and post-operative manometries in either group (P = 0.417 and P = 0.834 for LIFT and BioLIFT respectively). The only predictor for primary failure identified was anteriorly located fistula.

CONCLUSION

LIFT and BioLIFT compare favourably with other sphincter-preserving procedures. LIFT and BioLIFT can be performed safely, with minimal morbidity and with no reported loss of sphincteric function.

Ligation of intersphincteric fistula tract (LIFT) in treatment of anal fistula: An updated systematic review, meta-analysis, and meta-regression of the predictors of failure

BACKGROUND

Ligation of intersphincteric fistula tract has gained increasing popularity as a sphincter-sparing technique for complex anal fistula. The present review aimed to investigate the pooled success and complication rates of ligation of intersphincteric fistula tract in the published literature and to explore the risk factors for failure after ligation of intersphincteric fistula tract.

METHODS

A Preferred Reporting Items for Systematic Reviews and Meta-Analyses-compliant literature search was conducted. Electronic databases were searched in the period of January 2007 through April 2019 for studies that assessed the outcome of the ligation of intersphincteric fistula tract procedure. The main outcomes of the review were the pooled success and complication rates of ligation of intersphincteric fistula tract, predictors of failure after ligation of intersphincteric fistula tract, operation time, hospital stay, and how failures were managed.

RESULTS

Twenty-six studies comprising 1,378 patients (996 male) were included in this review. The mean age of patients was 42.3 ± 4.2 years. The weighted mean rate of success was 76.5%. The median follow-up duration was 16.5 months. The weighted mean complication rate was 13.9%. The most common complication was wound dehiscence. Fecal incontinence was recorded in 1.4% of patients. Factors that were statistically significantly associated with failure after the ligation of intersphincteric fistula tract procedure were horseshoe fistulas, fistulas associated with Crohn's disease, and those with a history of previous fistula surgery.

CONCLUSION

The pooled success and complication rates of the ligation of intersphincteric fistula tract procedure were about 76% and 14%, respectively. Horseshoe fistulas, Crohn's disease, and previous fistula surgery were identified as predictors for failure after ligation of intersphincteric fistula tract procedure.

Benign anorectal disease: hemorrhoids, fissures, and fistulas

Hemorrhoids, anal fissures, and fistulas are common benign anorectal diseases that have a significant impact on patients’ lives. They are primarily encountered by primary care providers, including internists, gastroenterologists, pediatricians, gynecologists, and emergency care providers. Most complex anorectal disease cases are referred to colorectal surgeons. Knowledge of these disease processes is essential for proper treatment and follow up. Hemorrhoids and fissures frequently benefit from non-operative treatment; they may, however, require surgical procedures. The treatment of anorectal abscess and fistulas is mainly surgical. The aim of this review is to examine the etiology, diagnosis, medical, and surgical treatment for these benign anorectal diseases.

Perianal fistulas and the lift procedure: results, predictive factors for success, and long-term results with subsequent treatment

Background

Treatment of a perianal fistula is difficult due to the risk of fecal incontinence and recurrence. The ligation of intersphincteric tract (LIFT) procedure is a sphincter-saving procedure associated with success rates ranging from 57 to 94%. The aim of our study was to find predictors for a favorable outcome of the LIFT procedure, evaluation of postoperative fecal incontinence, quality of life, and subsequent treatment with long-term follow-up.

Methods

This study was performed in patients who underwent LIFT between 2013 and 2015 at our institution. Their medical data were retrieved from the electronic patient files. The fistula characteristics were described by physical examination, three-dimensional endoanal ultrasound, and perioperative evaluation. Recurrence rate, postoperative fecal incontinence, and quality of life were assessed with the Patient-Reported Outcome Measurement (PROM). Thirty-two months later, long-term follow-up including subsequent procedures was evaluated.

Results

Forty-five patients [17 men, mean age 40 years (range 24–67 years)] were included. In 41 (84%) patients, the fistula was classified as complex; 32 (71%) were referrals with a history of previous fistula surgery. The initial success rate was 18 (40%). Only the height of the internal fistula opening (≥ 15 mm p < 0.03) was associated with recurrence. The LIFT procedure did not affect the occurrence of fecal incontinence or soiling. Recurrence showed a trend with a lower PROM (p = 0.07). Twenty-four months later, further surgery leads to cure in 34 (75%), asymptomatic fistulas in 7 (16%), and persisting active fistulas in 4 (9%) patients.

Conclusions

Initial LIFT had a success rate of 40% and with subsequent surgical treatment 75%. Recurrence after LIFT is related to the height of the internal fistula opening and is associated with diminished quality of life. Continence was not affected by initial LIFT.

Systematic review and meta-analysis of endorectal advancement flap and ligation of the intersphincteric fistula tract for cryptoglandular and Crohn's high perianal fistulas

Background

High perianal fistulas require sphincter‐preserving surgery because of the risk of faecal incontinence. The ligation of the intersphincteric fistula tract (LIFT) procedure preserves anal sphincter function and is an alternative to the endorectal advancement flap (AF). The aim of this study was to evaluate outcomes of these procedures in patients with cryptoglandular and Crohn's perianal fistulas.

Methods

A systematic literature search was performed using MEDLINE, Embase and the Cochrane Library. All RCTs, cohort studies and case series (more than 5 patients) describing one or both techniques were included. Main outcomes were overall success rate, recurrence and incontinence following either technique. A proportional meta‐analysis was performed using a random‐effects model.

Results

Some 30 studies comprising 1295 patients were included (AF, 797; LIFT, 498). For cryptoglandular fistula (1098 patients), there was no significant difference between AF and LIFT for weighted overall success (74·6 (95 per cent c.i. 65·6 to 83·7) versus 69·1 (53·9 to 84·3) per cent respectively) and recurrence (25·6 (4·7 to 46·4) versus 21·9 (14·8 to 29·0) per cent) rates. For Crohn's perianal fistula (64 patients), no significant differences were observed between AF and LIFT for overall success rate (61 (45 to 76) versus 53 per cent respectively), but data on recurrence were limited. Incontinence rates were significantly higher after AF compared with LIFT (7·8 (3·3 to 12·4) versus 1·6 (0·4 to 2·8) per cent).

Conclusion

Overall success and recurrence rates were not significantly different between the AF and LIFT procedure, but continence was better preserved after LIFT.

Long-term outcomes and quality of life following ligation of the intersphincteric fistula tract for high transsphincteric fistulas

AIM

Published outcomes following ligation of the intersphincteric fistula tract (LIFT) for high transsphincteric fistulas (HTFs) are equivocal probably because most trials are small and comprise mixed patient populations. The aim of this study was to highlight the long-term efficacy of LIFT for HTFs in a large homogeneous sample and to determine the risk factors that contribute to non-healing resulting in failure and recurrence.

METHOD

A retrospective study was performed which assessed patients with HTFs treated by LIFT without prior loose setons from September 2012 to December 2017. Continence function was evaluated by the Wexner incontinence scale and anal manometry. Quality of life was assessed by using the faecal incontinence quality of life (FIQL) scale with four domains: lifestyle, coping, depression and embarrassment.

RESULTS

Seventy patients with HTFs underwent 71 LIFT procedures. The primary healing rate was 81.7% with a median follow-up duration of 16.5 (range 4.5-68) months. The healing rates of mature and immature fistulas were 83.7% and 77.3%, respectively. Two patients suffered failure with an unhealed intersphincteric wound. Recurrence occurred in 11 patients. Incontinence of flatus, present in four patients before surgery, improved postoperatively. Two patients undergoing LIFT combined with fistulotomy complained of flatus incontinence after surgery. No significant differences between preoperative and postoperative Wexner score, maximum resting pressure and maximum squeeze pressure were detected. The FIQL was improved in lifestyle, coping and depression. No risk factor for non-healing was found.

CONCLUSION

LIFT has a promising long-term outcome for HTFs, with negligible impairment on continence and improved quality of life.

LONG-TERM OUTCOMES OF LIGATION OF INTERSPHINCTERIC FISTULA TRACT FOR COMPLEX FISTULA-IN-ANO: MODIFIED OPERATIVE PROCEDURE EXPERIENCE

Background:

It is important but difficult to treat complex fistula-in-ano due to the high recurrent rate and following incontinence. Ligation of the intersphincteric fistula tract (LIFT), a novel surgical procedure with the advantage of avoiding anal incontinence, has a variable success rate of 57-94.4 %.

Aim:

To evaluate the long-term outcomes of modified LIFT operative procedure - ligation of intersphincteric fistula tract - to treat complex fistula-in-ano.

Methods:

Retrospective analysis of 62 cases of complex fistula-in-ano. The group was treated with the modified approach of LIFT (curved incision was made in the anal canal skin; purse-string suture was performed around the fistula; the residual fistulas were removed in a tunnel-based way) and had a follow-up time of more than one year. Patient´s preoperative general condition, postoperative efficacy and their anal function were compared.

Results:

The median age of the participants was 34, and 43 (69.4%) cases were male. Forty-one (66.1%) cases were of high transsphincteric fistula, four (6.5%) cases of high intrasphincter fistula, and 17 (27.4%) cases of anterior anal fistula in female. The median follow-up duration was 24.5 (range, 12-51) months. The success rate in the end of follow-up was 83.9% (52/62). The anorectal pressure and Cleveland Clinic Florida Fecal Incontinence (CCF-FI) evaluated three months before and after the operation did not find apparent changes.

Conclusions:

Compared with LIFT, the modified LIFT remarkably reduces postoperative failure and the recurrence rate of complex fistula with acceptable long-term outcomes.

INTERESFINCTERIAL LIGATION OF FISTULA TRACT (LIFT) FOR PATIENTS WITH ANAL FISTULAS: A BRAZILIAN BI-INSTITUTIONAL EXPERIENCE

Background:

The best treatment for anal fistula should extirpate infection and promote healing of the tract, whilst preserving the anal sphincter complex and full continence.

Aim:

To analyze the success rate after a modified technique for ligation of the intersphincteric fistula tract (LIFT) for patients with anal fistulas.

Methods:

A prospective (observational cohort study) Brazilian bi-institutional experience with a modified (ligation of the intersphincteric fistula tract without excision) LIFT technique was undertaken. A clinical database was settled for the following variables: age, gender, BMI, comorbidities, distance between external orifice and the anus, previous fistula surgery, type of fistula, operative time, intra- and postoperative complications, duration of follow-up, and success rate.

Results:

Between November 2015 and January 2017, 38 patients with transsphincteric fistulas were operated on using the modified LIFT procedure. Seventeen (44.7%) were men. Median age was 41 (18-67) years. Median BMI was 26.4 (22-38) kg/m². Five (13.2%) had undergone previous surgery. The fistula was transsphincteric in all cases. Median follow-up was 32 (range, 14-56) weeks. Success was observed in 30 (79%) patients.

Conclusions:

The LIFT technique without excision of the fistula tract proved to be safe and effective for transsphincteric anal fistulas.

[Seton drainage in sphincter-sparing treatment of rectal fistulas]

Sphincter-sparing procedures for rectal fistulas are becoming more popular among coloproctologists. However, the outcomes are not optimal that forces surgeons to seek new approaches in order to improve results. Seton drainage prior to radical stage is one of these methods. The effect of seton drainage on the outcomes is reviewed in the article. Elibrary, Pubmed and Google Scholar databases were analyzed. We have assessed 14 out of 151 trials for the period 1984 - 2017. There were no significant advantages of seton drainage compared with single-stage approach (χ² = 3.84, p> 0.05, RR = 0.95, CI 95% 0.84 - 1.08). The same situation is observed for mucomuscular flap bringing down to close internal fistula. Fistula healing was more common after seton drainage deployment within 4 - 8 weeks. Bringing down of the flap to anal canal should be preferred after drainage due to less incidence of recurrences. Further trials are necessary to determine advisability of seton drainage and optimal surgical approach.

The treatment of anal fistula: second ACPGBI Position Statement - 2018

It is over 10 years since the first ACPGBI Position Statement on the management of anal fistula was published in 2007. This second edition is the result of scrutiny of the literature published during this time; it updates the original Position Statement and reviews the published evidence surrounding treatments for anal fistula that have been developed since the original publication.

Sphincter-Sparing Anal Fistula Repair: Are We Getting Better?

BACKGROUND

Sphincter-sparing repairs are commonly used to treat anal fistulas with significant muscle involvement.

OBJECTIVE

The current study evaluates the trends and efficacy of sphincter-sparing repairs and determines risk factors for fistula recurrence.

DESIGN AND SETTINGS

A retrospective review was performed at 3 university-affiliated teaching hospitals.

PATIENTS

All 462 patients with cryptoglandular anal fistulas who underwent 573 sphincter-sparing repairs between 2005 and 2015 were included. Patients with Crohn's disease were excluded.

MAIN OUTCOME MEASURES

The primary outcome was the rate of fistula healing defined as cessation of drainage with closure of the external opening. Risk factors for nonhealing were also analyzed.

RESULTS

Five hundred three sphincter-sparing repairs were analyzed, whereas 70 were lost to follow-up. Two hundred twenty sphincter-sparing repairs (44%) resulted in healing, 283 (56%) resulted in nonhealing with a median follow-up of 9 (range, 1-125) months. The median time to fistula recurrence was 3 (range, 0-75) months with 79% and 91% of recurrences noted within 6 and 12 months. Patients treated with a dermal advancement flap, rectal advancement flap, or ligation of the intersphincteric tract procedure were less likely to have a recurrence than patients treated with a fistula plug or fibrin glue (p < 0.001). Over time, there was a significantly increased use of the ligation of the intersphincteric tract procedure (p < 0.001) and a significantly decreased use of fistula plugs and fibrin glue (p < 0.001); healing rates improved accordingly. There were no significant differences in healing rates with respect to patient demographics, comorbidities, or fistula characteristics.

LIMITATIONS

This study was limited by its retrospective design.

CONCLUSIONS

Healing rates following sphincter-sparing repairs of cryptoglandular anal fistulas are modest, but have improved over time with the use of better surgical techniques. In this study, ligation of the intersphincteric fistula tract and flaps were superior to fistula plugs and fibrin glue; the former procedures are therefore favored. See Video Abstract at http://links.lww.com/DCR/A391.

What happens after a failed LIFT for anal fistula?

BACKGROUND

Ligation of the intersphincteric fistula tract (LIFT) was developed to treat transsphincteric anal fistulas. The aftermath of a failed LIFT has not been well documented.

METHODS

Retrospective chart review of LIFT procedure for transsphincteric anal fistula between March 2012 and September 2016.

RESULTS

53 patients with LIFT procedure were identified, 20 (37.7%) had persistent fistula with median followup of 4 months. Following LIFT, recurrence of fistula was transsphincteric (75%) or intersphincteric (25%) (p = NS). Persistent transsphincteric fistulas after LIFT were treated with seton (71.4%) followed by advancement flap (20%) or fistulotomy (50%). Of the recurrent intersphincteric fistulas, 50% underwent seton placement followed by fistulotomy, or advancement flap. Of the patients who underwent surgery after failed LIFT, 50% have had resolution of the fistula; 31.7% are still undergoing treatment.

CONCLUSION

Patients who underwent surgery after failed LIFT had 50% healing with placement of seton followed by fistulotomy or rectal advancement flap.

Increasing experience of ligation of the intersphincteric fistula tract for patients with Crohn's disease: what have we learned?

AIM

Ligation of the intersphincteric fistula tract (LIFT) has been proposed as a treatment of trans-sphincteric fistula in perianal Crohn's disease (CD). The aim of this study was to look at our experience of the LIFT procedure in CD patients on long-term follow-up. Specifically, we aimed to determine the fistula healing rate after the LIFT procedure after more than 12 months follow-up and to identify any prognostic factors.

METHOD

Retrospective study of patients with trans-sphincteric Crohn's fistula tracts treated with the LIFT procedure between January 2011 and October 2015. Complete fistula healing as well as clinical outcomes were analysed.

RESULTS

Data were available for 23 patients. After a median follow-up of 23 months, LIFT site healing was 48%. Patients with healed LIFT had a median follow-up time of 10.5 months, while patients with failed LIFT had a median follow-up time of 31 months (P = 0.04). Median time to failure was 9 months for patients with follow-up > 1 year. Most patients failed within 1 year (9/12; 75%) of the procedure. In multi-site CD, the LIFT procedure was more likely to be successful in those with small bowel disease (P = 0.04) compared with colonic disease (P = 0.02). Other factors such as preoperative use of biological therapies, presence of a seton, previous repair attempts, fistula position, type or number of fistulas, multiple fistula tracts, smoking status and other associated perianal disease did not appear to influence LIFT healing rates.

CONCLUSION

The LIFT procedure offers reasonable long-term success in the treatment of perianal trans-sphincteric fistulas associated with CD. LIFT is more likely to fail in patients with concurrent colonic CD than in patients with small bowel CD.

Total fistulectomy, sphincteroplasty and closure of the residual cavity for trans-sphincteric perianal fistula in the elderly patient

BACKGROUND

Perianal fistula is a complex and frequent disease. At present, no treatment nor technique has shown an absolute superiority in terms of efficacy and recurrence rate. The technique has to be chosen considering the balance between faecal continence preservation and disease eradication. Rarely concomitant perianal abscess and fistula are treated at the same time, and often time to complete recovery is long.

AIMS

The aim of this study was to evaluate the possibility of treating the abscess and the fistula tract in one procedure with total fistulectomy, sphincteroplasty and an almost complete closure of the residual cavity, thus reducing the healing time in older patients.

METHODS

A non-randomized single-centre series of 86 patients from 2007 to 2012 with low-medium trans-sphincteric perianal fistula (< 30% of external sphincter involvement) with or without synchronous perianal abscess were treated with total fistulectomy, sphincteroplasty and closure of the residual cavity technique.

RESULTS

Success rate was 97.7% with a healing time of 4 weeks; overall morbidity was 16.2%; recurrence rate was 2.3%; no major alterations of continence were observed.

DISCUSSION

Fistulectomy, sphincteroplasty and closure of the residual cavity are associated with a low rate of recurrence and good faecal continence preservation in older patients. This technique can be safely used even with a concomitant perianal abscess, with reduction in healing time and in the number of surgical procedures needed.

CONCLUSIONS

Total fistulectomy with sphincteroplasty and partial closure of the residual cavity, as described, is a safe procedure but has to be performed by dedicated colorectal surgeons.

Prospective evaluation of a new device for the treatment of anal fistulas

AIM

To evaluate the safety of the implantation of a new device for the treatment of anal fistulas. The short-term clinical efficacy was also assessed.

METHODS

This study took place at a tertiary care university hospital. Patients with a complex anal fistula of cryptoglandular origin were enrolled in the study and were treated with insertion of the new device. All patients were evaluated by clinical and physical examination, including an endoanal ultrasound at the baseline, and then at the 2 wk and 1, 2, 3 and 6-mo follow-up visits.

RESULTS

Morbidity, continence status, and success rate were the main outcome measures. Ten patients underwent the placement of the new device. The fistulas were transphincteric in eight patients and extrasphincteric in the remaining two. The median duration of the surgical procedure was 34.5 (range, 27-42) min. Neither intra- nor postoperative complications occurred, and all patients were discharged the day after the procedure. At the 6-mo follow-up evaluation, the final success rate was 70%. Three failures were registered: a device expulsion (on the 10(th) postoperative day), the persistence of inflammatory tissue around the fistula tract (at the 2-mo follow up), and the persistence of serum discharge (at the 6-mo follow up). No patient experienced any change incontinence, as assessed by the Cleveland Clinic Fecal Incontinence score.

CONCLUSION

The technical procedure is simple and has low risk of perioperative morbidity. The pre- and post-operative continence status did not change in any of the patients. The initial results at the 6-mo follow up seem to be promising. However, a longer follow-up period and a larger sample size are needed to confirm these preliminary results.

Adoption and success rates of perineal procedures for fistula-in-ano: a systematic review

AIM

Several sphincter-preserving techniques have been described with extremely encouraging initial reports. However, more recent studies have failed to confirm the positive early results. We evaluate the adoption and success rates of advancement flap procedures (AFP), fibrin glue sealant (FGS), anal collagen plug (ACP) and ligation of intersphincteric fistula tract (LIFT) procedures based on their evolution in time for the management of anal fistula.

METHOD

A PubMed search from 1992 to 2015. An assessment of adoption, duration of study and success rate was undertaken.

RESULTS

We found 133 studies (5604 patients): AFP (40 studies, 2333 patients), FGS (31 studies, 871 patients), LIFT (19 studies, 759 patients), ACP (43 studies, 1641 patients). Success rates ranged from 0% to 100%. Study duration was significantly associated with success rates in AFP (P = 0.01) and FGS (P = 0.02) but not in LIFT or ACP. The duration of use of individual procedures since first publication was associated with success rate only in AFP (P = 0.027). There were no statistically significant differences in success rates relative to the number of the patients included in each study.

CONCLUSION

Success and adoption rates tend to decrease with time. Differences in patient selection, duration of follow-up, length of availability of the individual procedure and heterogeneity of treatment protocols contribute to the diverse results in the literature. Differences in success rates over time were evident, suggesting that both international trials and global best practice consensus are desirable. Further prospective randomized controlled trials with homogeneity and clear objective parameters would be needed to substantiate these findings.

Management of Complex Anal Fistulas

Complex anal fistulas require careful evaluation. Prior to any attempts at definitive repair, the anatomy must be well defined and the sepsis resolved. Several muscle-sparing approaches to anal fistula are appropriate, and are often catered to the patient based on their presentation and previous repairs. Emerging technologies show promise for fistula repair, but lack long-term data.

Ligation of Intersphincteric Fistula Tract: a Sphincter-Sparing Option for Complex Fistula-in-Ano

Fistulae-in-ano represent one of the more challenging anorectal diseases faced by surgeons, as appropriate management requires careful balance between the need for local sepsis control and patients' desire to maintain fecal continence. The ligation of intersphincteric fistula tract (LIFT) procedure, first described by Rojanasakul and colleagues in 2007, represents a sphincter-sparing technique for fistula management which has become our method of choice for transsphincteric fistulas. With this technique, patients frequently enjoy successful fistula healing., or, at worst, conversion to a less complex fistula tract. Here, we describe and illustrate our surgical approach and review success and recurrence rates presented in the published literature.

VAAFT: Video Assisted Anal Fistula Treatment; Bringing revolution in Fistula treatment

Objective:

To share our findings that the new treatment modality Video Assisted Anal Fistula Treatment (VAAFT) is a better alternate to the conventional treatments of Fistula in Ano in our setup with minor changes in the initial method described by Meinero.

Methods:

Karl Storz Video equipment including Meinero Fistuloscope was used. Key steps are visualization of the fistula tract, correct localization of the internal fistula opening under direct vision and endoscopic treatment of the fistula. This is followed by an operative phase of fulguration of the fistula tract using glycine solution mixed with manitol, curetting the tract with curette and fistula brush. Internal opening is closed with a Vicryl 1 suture.

Result:

Total of 40 patients were operated using VAAFT from October 2013 to March 2014. Three were re-operated. The other 37 cases were followed up at 6 weeks, 3 months and 6 months. Primary healing took place in 20 (50%) cases at 6 weeks. In the remaining 17 (42.5%) cases, minor discharge occurred with itching which resolved till the next visit at 8 weeks and 12 weeks.

Conclusion:

As the main aim in treating fistula is proper identification of the internal opening, excision of the tract and sparing the sphincter function, VAAFT achieves all aims with additional benefits of patients’ satisfaction and negligible scaring.