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Fistula-in-ano and anorectal abscesses are commonly encountered in surgical departments, but their extension into the retroperitoneum and pelvis to form an extensive collection is rare. Here, we present the case of a 66-year-old diabetic male who presented with lower abdominal pain and fever for a day, with signs of sepsis. He had a simple fistula in the perianal region for the past 15 years. Radiological studies showed that the fistulous tract was complex which extended superiorly into the supralevator space and the retroperitoneum and formed a localized collection in the pelvis. The dependent part of the collection was drained using minimally invasive techniques, and the remnant collection was surgically drained through a perianal approach. The patient's condition improved with further treatment and local wound care, and he was subsequently discharged.
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BACKGROUND: Ileal pouch anal anastomosis (IPAA) circumferential pouch advancement (CPA) involves full-thickness transanal 180-360° dissection of the distal pouch, allowing the advancement of healthy bowel to cover the internal opening of a vaginal fistula. We aimed to describe the long-term outcomes of this rare procedure. METHODS: Patients with IPAA who underwent transanal pouch advancement for any indication between 2009 and 2021 were included. Demographics, operative details, and outcomes were reviewed. An early fistula was defined as occurring within 1 year of IPAA construction. Clinical success was defined as resolution of symptoms necessitating CPA, pouch retention, and no stoma at the time of follow-up. Figures represent the median (interquartile range) or frequency (%). RESULTS: Over a 12-year period, nine patients were identified; the median age at CPA was 41 (36-44) years. Four patients developed early fistula after index IPAA, and five developed late fistulae. The median number of fistula repair procedures prior to CPA was 2 (1-2). All patients were diagnosed with ulcerative colitis at the time of IPAA and all late patients were re-diagnosed with Crohn's disease. Four (44.4%) patients had ileostomies present at the time of surgery, three (33.3%) had one constructed during surgery, and two (22.2%) never had a stoma. The median follow-up time was 11 (6-24) months. Clinical success was achieved in four of the nine (44.4%) patients at the time of the last follow-up. CONCLUSIONS: Transanal circumferential pouch advancement was an effective treatment for refractory pouch vaginal fistulas and may be offered to patients who have had previous attempts at repair.
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Colitis Ulcerosa , Reservorios Cólicos , Complicaciones Posoperatorias , Proctocolectomía Restauradora , Fístula Vaginal , Humanos , Femenino , Adulto , Reservorios Cólicos/efectos adversos , Fístula Vaginal/cirugía , Fístula Vaginal/etiología , Proctocolectomía Restauradora/efectos adversos , Proctocolectomía Restauradora/métodos , Resultado del Tratamiento , Colitis Ulcerosa/cirugía , Estudios Retrospectivos , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/cirugía , Enfermedad de Crohn/cirugía , Enfermedad de Crohn/complicaciones , Estudios de SeguimientoRESUMEN
The malignant transformation of chronic fistula in ano is rare, accounting for 3% to 11% of all anal canal malignancies. It results from long-standing inflammation and chronic irritation. No guidelines are available for the management of these cases. We herein present a case report of a 55-year-old man who presented with a history of constipation, perianal pain, and discharging fistula in ano of 4-year duration and underwent fistula surgery with recurrence. Biopsy of the fistulous tract revealed adenocarcinoma. He received neoadjuvant chemoradiotherapy, followed by abdominoperineal excision including excision of the fistulous tract. After 18 months of follow-up, he is free of recurrence. We present this case with a review of the literature, highlighting the management strategies.
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Hidradenitis suppurativa (HS), also known as acne inversa, is a chronic inflammatory disorder affecting the terminal follicular epithelium within the apocrine skin glands. When these lesions develop in the genital and perianal regions, there is a potential risk of progression to squamous cell carcinoma or mucinous adenocarcinoma. The tumor may appear in the perianal area, perineum, or buttocks. Here, we present a rare case of long-standing perianal HS with associated fistula-related mucinous adenocarcinoma and the challenges we faced in managing this condition.
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INTRODUCTION: Visualising the course of a complex perianal fistula on imaging can be difficult. It has been postulated that three-dimensional (3D) models of perianal fistulas improve understanding of the perianal pathology, contribute to surgical decision-making and might even improve future outcomes of surgical treatment. The aim of the current study is to investigate the accuracy of 3D-printed models of perianal fistulas compared with magnetic resonance imaging (MRI). METHODS: MRI scans of 15 patients with transsphincteric and intersphincteric fistulas were selected and then assessed by an experienced abdominal and colorectal radiologist. A standardised method of creating a 3D-printed anatomical model of cryptoglandular perianal fistula was developed by a technical medical physicist and a surgeon in training with special interest in 3D printing. Manual segmentation of the fistula and external sphincter was performed by a trained technical medical physicist. The anatomical models were 3D printed in a 1:1 ratio and assessed by two colorectal surgeons. The 3D-printed models were then scanned with a 3D scanner. Volume of the 3D-printed model was compared with manual segmentation. Inter-rater reliability statistics were calculated for consistency between the radiologist who assessed the MRI scans and the surgeons who assessed the 3D-printed models. The assessment of the MRI was considered the 'gold standard'. Agreement between the two surgeons who assessed the 3D printed models was also determined. RESULTS: Consistency between the radiologist and the surgeons was almost perfect for classification (κ = 0.87, κ = 0.87), substantial for complexity (κ = 0.73, κ = 0.74) and location of the internal orifice (κ = 0.73, κ = 0.73) and moderate for the percentage of involved external anal sphincter in transsphincteric fistulas (ICC 0.63, ICC 0.52). Agreement between the two surgeons was substantial for classification (κ = 0.73), complexity (κ = 0.74), location of the internal orifice (κ = 0.75) and percentage of involved external anal sphincter in transsphincteric fistulas (ICC 0.77). CONCLUSIONS: Our 3D-printed anatomical models of perianal fistulas are an accurate reflection of the MRI. Further research is needed to determine the added value of 3D-printed anatomical models in preoperative planning and education.
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Canal Anal , Imagen por Resonancia Magnética , Modelos Anatómicos , Impresión Tridimensional , Fístula Rectal , Humanos , Fístula Rectal/diagnóstico por imagen , Fístula Rectal/cirugía , Imagen por Resonancia Magnética/métodos , Reproducibilidad de los Resultados , Canal Anal/diagnóstico por imagen , Canal Anal/cirugía , Canal Anal/patología , Femenino , Masculino , Adulto , Imagenología Tridimensional/métodos , Persona de Mediana EdadRESUMEN
BACKGROUND: Limited data are available regarding the risk factors for fistula-in-ano (FIA) in infants and toddlers, potentially affecting their daily lives. OBJECTIVES: The purpose of this study was to identify potential risk factors for FIA in infants and toddlers, in order to implement early preventive interventions, avoid disease progression, and develop therapeutic strategies. DESIGN AND SETTINGS: A retrospective case-control study was conducted, comparing 41 infants and toddlers diagnosed with FIA with 41 healthy controls, between August 2020 and December 2021. INDEPENDENT VARIABLES: (a) maternal characteristics during pregnancy and delivery, (b) perinatal characteristics, dietary behaviors, and defecation-related behaviors in infants and toddlers, (c) family dietary behaviors. RESULTS: Mothers of infants and toddlers with FIA had given birth more times in the past, while the infants and toddlers themselves had less mealtime, a higher rate of exclusive breastfeeding, frequent loose stools, and a larger proportion of used wipes, experiencing perianal skin anomalies. The logistic regression analysis revealed that there are four significant risk factors associated with the development of FIA in infants and toddlers, including the number of previous deliveries by the mother (OR 6.327), defecation frequency score (OR 5.351), stool consistency score (OR 5.017), and cleaning with wipes after defecation (OR 8.089). CONCLUSION: Based on our data, it appeared that FIA in infants and toddlers could be attributed to several factors. These included an increased number of previous deliveries by mothers, frequent loose stools, and repeated wipe use. To prevent the occurrence and worsening of the disease, it is important to improve the frequency and consistency of stooling and provide proper care. Further research is required to verify these findings in other clinical settings.
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Fístula Rectal , Humanos , Lactante , Factores de Riesgo , Estudios de Casos y Controles , Femenino , Estudios Retrospectivos , Masculino , Preescolar , Fístula Rectal/etiología , Defecación , Lactancia Materna , Embarazo , Recién NacidoRESUMEN
Perianal complications are common and morbid in children with Crohn's disease. In this review, we describe the epidemiology, the presentation and diagnosis, evaluation and management. We focus on updates such as the increasing frequency of biologic medications and MRI for evaluation. We also highlight controversies on the timing and approaches to surgical techniques. Finally, perianal disease requires the coordination of multidisciplinary care with nursing, radiology, gastroenterology, and surgery to optimize outcomes - both medical and patient-centered.
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Enfermedad de Crohn , Humanos , Enfermedad de Crohn/terapia , Enfermedad de Crohn/diagnóstico , Enfermedad de Crohn/epidemiología , Niño , Enfermedades del Ano/terapia , Enfermedades del Ano/diagnóstico , Enfermedades del Ano/epidemiología , Enfermedades del Ano/etiologíaRESUMEN
Anal suppurative processes are commonly encountered in surgical practice. While the initial therapeutic intervention is philosophically straightforward (incision and drainage), drainage of the appropriate space and treatment of the subsequent fistula in ano require a thorough understanding of perianal anatomy and nuanced decision making. Balancing the risk of fecal incontinence with simple fistulotomy versus the higher risk of fistula recurrence with all sphincter-sparing fistula treatments can be a challenge for surgeons and patients alike.
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Canal Anal , Fístula Rectal , Humanos , Fístula Rectal/cirugía , Fístula Rectal/terapia , Canal Anal/cirugía , Drenaje/métodos , Medicina Basada en la EvidenciaRESUMEN
Background: It is well known that recurrent perianal abscesses (PAs) and fistula-in-ano (FIA) are the main causes of therapy failure following incision and drainage (I&D) for PAs. But few studies have focused on the risk factors for therapy failure after I&D for PAs in children. In this study, we retrospectively examine the risk factors for therapy failure after I&D for PAs in children in a pediatric tertiary care institution. Methods: A retrospective review of all outpatient children with PA treated by I&D at Beijing Children's Hospital between January 2021 and December 2022 was performed. A follow-up was conducted in October 2023. Patients with other predisposing factors for perianal infection, such as inflammatory bowel disease, hematologic tumor, and anorectal surgery, were excluded from this study. Logistic regression yielding odds ratios (ORs) was used to assess the significance of variables for therapy failure. Results: Of 160 children initially identified, follow-up was available for 146, with a total of 172 treatments. A total of 91% of children were male. The median (interquartile range) age at I&D was 2 (1, 15) months. The median follow-up duration was 20 (14, 25) months. Therapy failure occurred in 25 (15%) treatments performed for the prevention of recurrence of PA and in 35 (20%) treatments for the prevention of development of FIA. In the univariate analysis, a history of PA (P = 0.001), history of I&D (P = 0.014), and multilocal occurrence (P = 0.003) were associated with therapy failure. A sitz bath after I&D (P = 0.016) and regular cleaning of the wound after I&D (P = 0.024) were associated with therapy success. In the multivariate analysis, a history of PA (P = 0.015, OR = 3.374) and multilocal occurrence (P = 0.012, OR = 4.649) were independently associated with therapy failure. Regular cleaning of the wound (P = 0.017, OR = 0.341) and sitz bath (P = 0.001, OR = 0.128) after I&D were independently associated with therapy success. Conclusions: A history of PA and multilocal occurrence were predictor factors for therapy failure before I&D. Regular cleaning of the wound and sitz bath after I&D were protective factors for therapy success. Therefore, regular cleaning of the wound and sitz bath after I&D should be emphasized in all children with PAs, especially in those with a history of PA and multilocal occurrence.
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Background: Accurate preoperative evaluation of fistula-in-ano can guide the choice of surgical procedure and may improve healing rates. This prospective study aimed to evaluate the accuracy of conventional 3D transperineal ultrasound (3D-TPUS) compared with SonoVue (SVE)-enhanced 3D-TPUS for the detection and classification of anal fistula. Methods: In this prospective study, 3D-TPUS reconstructions were performed before and after SVE enhancement in 60 patients with fistula-in-ano who intended to undergo surgery at the Department of Anorectal Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University (P. R. China) between January 2021 and October 2021. Accuracies of anal fistula classification, complexity classification, detection of anal fistula branches, and detection of internal opening between 3D-TPUS and SVE 3D-TPUS were compared based on a reference standard-intraoperative findings. Results: This study enrolled 60 patients (mean age, 37.1 ± 11.4 years; mean follow-up, 9 ± 3 months). Intraoperative findings showed that the fistula type was intersphincteric in 23 patients (38.3%), trans-sphincteric in 35 (58.3%; 12 high and 23 low), and suprasphincteric in 2 (3.3%). Moreover, 68 internal openings were found. Compared with the accuracy of 3D-TPUS, that of SVE 3D-TPUS was similar in fistula classification [95.0% (57/60) vs 96.7% (58/60), P = 0.392], but significantly higher in internal opening evaluation [80.9% (55/68) vs 97.1% (66/68), P = 0.001], complexity classification [85.0% (51/60) vs 98.3% (59/60), P = 0.018], and detection of fistula branches [70.4% (19/27) vs 92.6% (25/27), P = 0.031]. Conclusions: SVE 3D-TPUS may be a useful examination for patients with perianal fistulae because of its high accuracy and consistency with intraoperative findings, especially in complex fistula-in-ano and difficult cases.
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Anal fistulas, especially complex and high fistulas, are difficult to manage. The transanal opening of the intersphincteric space (TROPIS) procedure was first described in 2017, and a high success rate of over 90% was reported in high complex fistulas. Since then, more studies and even a meta-analysis have corroborated the high efficacy of this procedure in high fistulas. Conventionally, the main focus was to close the internal (primary) opening for the fistula to heal. However, most complex fistulas have a component of the fistula tract in the intersphincteric plane. This component is like an abscess (sepsis) in a closed space (2 muscle layers). It is a well-known fact that in the presence of sepsis, healing by secondary intention leads to better results than attempting to heal by primary intention. Therefore, TROPIS is the first procedure in which, instead of closing the internal opening, the opening is widened by laying open the fistula tract in the intersphincteric plane so that healing can occur by secondary intention. Although the drainage of high intersphincteric abscesses through the transanal route was described 5 decades ago, the routine utilization of TROPIS for the definitive management of high complex fistulas was first described in 2017. The external anal sphincter (EAS) is completely spared in TROPIS, as the fistula tract on either side of the EAS is managed separately-inner (medial) to the EAS by laying open the intersphincteric space and outer (lateral) to the EAS by curettage or excision.
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BACKGROUND: Anorectal fistula, which is a relatively common pathology, is the chronic manifestation of the acute perirectal process that forms an anal abscess. The development of a fistula after incision and drainage of an anal abscess is seen in approximately 26-37%. Its treatment is a relevant topic, and the role of the use of antibiotic therapy in its prevention remains controversial, after the publication of several studies with contradictory results and several methodological limitations. Our hypothesis is that the combination of amoxicillin and clavulanic acid will reduce the incidence of anal fistula. METHOD: The aim of this study is to evaluate the efficacy of antibiotherapy after surgical drainage of perianal abscess in the development of perianal fistula. The PERIQxA study is a multicenter, randomized, double-blind controlled trial. The study has been designed to include 286 adult patients who will be randomly (1:1) assigned to either the experimental (amoxicillin/clavulanic acid 875/125 mg TDS for 7 days) or the control arm (placebo). The primary outcome measure is the percentage of patients that develop perianal fistula after surgery and during follow-up (6 months). DISCUSSION: This clinical trial is designed to evaluate the efficacy and safety of amoxicillin/clavulanic in the prevention of perianal fistula. The results of this study are expected to contribute to stablish the potential role of antibiotherapy in the therapeutics for anal abscess. TRIAL REGISTRATION: EudraCT Number: 2021-003376-14. Registered on November 26, 2021.
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Enfermedades del Ano , Fístula Rectal , Enfermedades de la Piel , Adulto , Humanos , Absceso/diagnóstico , Absceso/etiología , Absceso/prevención & control , Combinación Amoxicilina-Clavulanato de Potasio/efectos adversos , Enfermedades del Ano/complicaciones , Enfermedades del Ano/prevención & control , Enfermedades del Ano/cirugía , Fístula Rectal/diagnóstico , Fístula Rectal/etiología , Fístula Rectal/prevención & control , Drenaje/efectos adversos , Drenaje/métodos , Resultado del Tratamiento , Ensayos Clínicos Controlados Aleatorios como Asunto , Estudios Multicéntricos como AsuntoRESUMEN
Abstract Treatment of fistula in ano by seton has become less in vogue due to the complications and disadvantages associated with its use. In its place, more technically demanding and expensive procedures, with less morbidity but more recurrence, such as endorectal advancement flaps and laser, are being employed more commonly. To overcome some of the limitations of conventional seton, we have designed a composite seton. In the present study, we evaluated our experience with a composite seton made from two silastic vessel loops sutured together with 5-0 polypropylene. The composite seton was found to not present many of the disadvantages of the conventional seton. The use of the composite seton resulted in low incontinence and recurrence rates, less pain, and high quality of life. This technically simple and cheaper material may have a wider applicability.
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BACKGROUND: The use of cutting seton (CS) for the management of cryptoglandular fistula-in-ano has remained controversial because of reports of fecal incontinence, postoperative pain, and extended healing time. The aim of this review was to provide the first synthesis of studies investigating the use of CS for the treatment of cryptoglandular fistula-in-ano. METHODS: MEDLINE, Embase, and CENTRAL were searched up to October 2022. Randomized controlled trials and observational studies comparing CS with alternative interventions were included, along with single-arm studies evaluating CS alone. The primary outcome was fistula-in-ano recurrence, and secondary outcomes included incontinence, healing time, proportion with complete healing, and postoperative pain. Inverse variance random-effects meta-analyses were used to pool effect estimates. RESULTS: After screening 661 citations, 29 studies were included. Overall, 1513 patients undergoing CS (18.8% female, mean age: 43.1 years) were included. Patients with CS had a 6% (95% CI: 3-12%) risk of recurrence and a 16% (95% CI: 5-38%) risk of incontinence at 6 months. CS patients had an average healing time of 14.6 weeks (95% CI: 10-19 weeks) with 73% (95% CI: 48-89%) of patients achieving complete healing at 6 months postoperatively. There was no difference in recurrence between CS and fistulotomy, advancement flap, two-stage seton fistulotomy, or draining seton. CONCLUSIONS: Overall, this analysis shows that CS has comparable recurrence and incontinence rates to other modalities. However, this may be at the expense of more postoperative pain and extended healing time. Further comparative studies between CS and other modalities are warranted.
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Incontinencia Fecal , Fístula Rectal , Humanos , Femenino , Adulto , Masculino , Estudios de Seguimiento , Fístula Rectal/etiología , Drenaje , Incontinencia Fecal/cirugía , Incontinencia Fecal/complicaciones , Dolor Postoperatorio/etiología , Resultado del Tratamiento , RecurrenciaRESUMEN
BACKGROUND: It is often stated that loose seton drainage results in distal migration of a fistula tract in perianal fistula. The aim of the present study was to assess this distalization of trans- and suprasphincteric perianal fistulas after a silicone seton has been inserted. METHODS: Consecutive patients who underwent loose seton placement for the management of a transsphincteric or suprasphincteric fistula between January 2016 and December 2021 with a pre- and postoperative magnetic resonance imaging (MRI) were included in the present retrospective study. The height of the external anal sphincter (EAS) and the level of penetration of perianal fistula through the EAS or puborectal muscle (PRM) were determined on MRI. Primary outcome was migration of the fistula tract through the EAS and PRM. RESULTS: Thirty-eight patients with perianal fistulas were included. Median height of the EAS was 28 (IQR 25-34) mm before seton placement and 27 (IQR 24-33) mm afterward. Median level of perforation was 32 (IQR 17-40) mm before seton placement and 28 (IQR 17-40) mm afterward (p = 0.37). One fistula (3%) was downgraded from mid to low transsphincteric and was laid open after 14.9 months of loose seton drainage. CONCLUSIONS: No statistically significant distalization of complex fistula tracts after loose silicone seton drainage was found. Some complex fistulas may downgrade to a less complex fistula after long-term seton drainage. However, loose silicone seton drainage should not be offered to patients as a treatment option to downgrade a complex fistula to a simple one or even have the hope to heal it.
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Fístula Rectal , Humanos , Estudios Retrospectivos , Fístula Rectal/etiología , Fístula Rectal/cirugía , Canal Anal/cirugía , Drenaje/métodos , Inflamación , Resultado del TratamientoRESUMEN
Introduction: Perianal fistula is a common colorectal disease which is caused mainly by cryptoglandular disease. Although most cases are treated successfully by surgery, management of complex perianal fistulas (CPAF) remains a challenge with limited results in recurrence and sometimes associated with fecal incontinence. The CPAF treatment with autologous adipose-derived mesenchymal stem cells (ASCs) had become a research hotspot. The technique started to be used in the treatment of Crohn's disease (CD) fistulas, where the studies showed safe and goods result from the procedure. Cultured ASCs have been used but this approach requires the preceding collection of adipose tissue, time for isolation of ASCs and subsequent in vitro expansion, need for laboratory facilities, and expertise in cell culturing. These factors have been getting over by using the commercially available alternative, allogenic ASCs. Treatment with allogeneic ASCs has shown good results in patients with CD fistulas, however with the disadvantage of being expensive. Objective: To show that the injection with freshly collected adipose tissue is an alternative to treatment with autologous or allogenic ASCs with several advantages. Methods: In this case report, we show our first experience in the treatment of CPAF with the application of collected adipose tissue in a tertiary referral hospital from Belo Horizonte, Brazil. Results The patient had a good postoperative recuperation with a complete fistula healing after 8 months without adverse effects. Conclusion: Injection with freshly collected adipose tissue is a promising and apparently safe sphincter-sparing technique in the treatment of CPAF. (AU)
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Humanos , Femenino , Adulto , Fístula Rectal/cirugía , Células Madre Mesenquimatosas , Enfermedad de CrohnRESUMEN
PURPOSE: To evaluate the impact of preoperative three-dimensional endoanal ultrasound (3D-EAUS) on the clinical outcome of anal fistula surgery. METHODS: The research consisted of multi-center retrospective case-control study including 253 consecutive adult patients undergoing surgery for confirmed or suspected primary fistula in ano who had undergone preoperative 3D-EAUS evaluation between January 2011 and January 2021. Main outcome measures were the concordance (K value) between ultrasound results and surgery in the identification of fistulas internal openings, primary tracts and secondary extensions and the 6 and 12 months success rate in patients with concordant and discordant findings. RESULTS: A good agreement in the identification of the main fistulas characteristics between ultrasound results and operative findings was found. A significant difference (P < .0001; Fisher's exact test) in the success rate was found between patients with concordant and discordant ultrasound results and operative findings in identification or location of internal opening. Particularly, all the 11 (4.8%) patients with discordant results experimented a failure of the surgical procedure at 6 months follow-up. At re-operation, the shift from discordant to concordant results was associated with an 81.8% 12 months success-rate. CONCLUSION: The three-dimensional endoanal ultrasound preoperative evaluation may have a relevant impact on the outcome of a defined group of patients undergoing surgery for anal fistula, since the careful evaluation of ultrasound results could simplify the internal orifice intra-operative detection and improve the success rate.
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Endosonografía , Fístula Rectal , Adulto , Humanos , Estudios Retrospectivos , Estudios de Casos y Controles , Endosonografía/métodos , Imagenología Tridimensional/métodos , Fístula Rectal/diagnóstico por imagen , Fístula Rectal/cirugía , Resultado del Tratamiento , Canal Anal/diagnóstico por imagen , Canal Anal/cirugíaRESUMEN
Background: Fistula-in-ano treatment has remained quite challenging with high failure rates and a potential for damage to the anal sphincteric complex leading to flatal or faecal incontinence. The treatment of fistula-in-ano using the fistula laser closure (FiLaC) as a minimally invasive, sphincter-saving procedure for complex disease has recently been documented. Objectives: This review aimed to report the outcome of using it at the Lagos University Teaching Hospital. Patients and Methods: The procedures were performed with a radially emitting laser fibre from Biolitec AG-CeramOptec (Bonn, Germany). The duration of symptoms, type of fistula, duration of the procedures, and postoperative complications were evaluated. Results: Eleven male patients had laser fistula-in-ano closure. The age range was 33-51 years, with a median age of 39 years and an interquartile range (IQR) of 37-47 years. Five patients were noted to have high fistula/e, whereas six had low fistula/e, seven had a single tract each, and three had three tracts each. The duration of surgery ranged, approximately from 3 to 60 min, with a median of 19 min and IQR of 9-33 min. Postoperative pain was mild in all patients and were all discharged as day case. There was no postoperative wound infection, anal incontinence, anal stenosis, and subcutaneous abscess. However, there was a recurrence in two patients. Conclusions: FiLaC has been demonstrated to be a reliable and safe sphincter-saving procedure for treating fistula-in-ano even for complex and high fistulae that is feasible in our subregion.