Redo gracilis interposition for complex perineal fistulas

Gracilis muscle interposition for pouch-vaginal fistulas: a single-centre cohort study and literature review

BACKGROUND

First described by Parks and Nicholls in 1978, the ileal pouch-anal anastomosis (IPAA) has revolutionized the treatment of mucosal ulcerative colitis (MUC) and familial adenomatous polyposis (FAP). IPAA is fraught with complications, one of which is pouch-vaginal fistulas (PVF), a rare but challenging complication noted in 3.9-15% of female patients. Surgical treatment success approximates 50%. Gracilis muscle interposition (GMI) is a promising technique that has shown good results with other types of perineal fistulas. We present the results from our institution and a comprehensive literature review.

METHODS

A retrospective observational study including all patients with a PVF treated with GMI at our institution from December 2018-January 2000. Primary outcome was complete healing after ileostomy closure.

RESULTS

Nine patients were included. Eight of nine IPAAs (88.9%) were performed for MUC, and one for FAP. A subsequent diagnosis of Crohn's disease was made in five patients. Initial success occurred in two patients (22.2%), one patient was lost to follow-up and seven patients, after further procedures, ultimately achieved healing (77.8%). Four of five patients with Crohn's achieved complete healing (80%).

CONCLUSION

Surgical healing rates quoted in the literature for PVFs are approximately 50%. The initial healing rate was 22.2% and increased to 77.8% after subsequent surgeries, while it was 80% in patients with Crohn's disease. Given this, gracilis muscle interposition may have a role in the treatment of pouch-vaginal fistulas.

Outcomes of gracilis muscle interposition for rectourethral fistulas caused by treatment of prostate cancer

BACKGROUND

Gracilis muscle interposition (GMI) has been associated with favorable outcomes in treating complex perianal fistulas. Outcomes of GMI may vary according to the fistula etiology, particularly between rectovaginal fistulas in women and rectourethral fistulas (RUF) in men. The aim of this study was to assess the outcome of GMI to treat RUF acquired after prostate cancer treatment.

METHODS

This retrospective cohort study included male patients treated with GMI for RUF acquired after prostate cancer treatment between January 2000 and December 2018 in the Department of Colorectal Surgery, Cleveland Clinic Florida. The primary outcome was the success of GMI, defined as complete healing of RUF without recurrence. Secondary outcomes were length of hospital stay and postoperative complications.

RESULTS

This study included 53 male patients with a median age of 68 (range, 46-85) years. Patients developed RUF after treatment of prostate cancer with radiation (52.8%), surgery (34%), or transurethral resection of the prostate (TURP) (13.2%). Median hospital stay was 5 (IQR, 4-7) days. Twenty (37.7%) patients experienced 25 complications, the most common being wound infection and dehiscence. Primary healing after GMI was achieved in 28 (52.8%) patients. Fifteen additional patients experienced successful healing of RUF after additional procedures, for a total success rate of 81.1%. Median time to complete healing was 8 (range, 4-56) weeks. The only significant factor associated with outcome of GMI was wound dehiscence (p = 0.008).

CONCLUSIONS

Although the initial success rate of GMI was approximately 53%, it increased to 81% after additional procedures. Complications after GMI were mostly minor, with wound complications being the most common. Perianal wound dehiscence was significantly associated with failure of healing of RUF after GMI.

Gracilis Flap Repair for Reoperative Rectovaginal Fistula

BACKGROUND

Surgical treatment of recurrent rectovaginal fistulas is notoriously difficult. Placement of the gracilis muscle between the vagina and anus is an advanced technique used to close persistent fistulas. We have utilized this procedure for recalcitrant fistulas and hypothesized that a gracilis interposition would offer a good treatment option for patients with refractory rectovaginal fistulas, regardless of underlying etiology.

OBJECTIVE

The purpose of this study was to investigate healing rates of gracilis interposition in patients with refractory rectovaginal fistulas.

DESIGN

Following institutional review board approval, a retrospective review of all adult female patients with a diagnosis of rectovaginal fistula between January 2009 and August 2020 was performed; those who underwent gracilis interposition for definitive fistula closure were included for analysis.

SETTINGS

The study was conducted at a colorectal surgery department at a tertiary center in the United States.

PATIENTS

All patients were adult females with a diagnosis of a rectovaginal fistula who underwent gracilis interposition for definitive closure.

MAIN OUTCOME MEASURES

Patient demographics, etiology of rectovaginal fistula, previous surgical intervention, presence of intestinal diversion, operative details, 30-day morbidity, recurrence of fistula, and time to recurrence. Fistula closure was defined as lack of clinical symptoms following stoma closure, negative fistula detection on gastrograffin enema' and absence of an internal opening at examination under anesthesia.

RESULTS

Twenty-two patients were included who had a median age of 43 years (range, 19-64 years) and median body mass index of 31 kg/m 2 (range, 22-51). Median time between prior attempted surgical repair and gracilis surgery was 7 months (range, 3-17). The number of previously attempted repairs were 1-2 (n = 8), 3-4 (n = 9), and > 4 (n = 5). The most recent attempted surgical repair was rectal advancement flap (n = 7), transperineal +/- Martius flap (n = 4), episioproctotomy (n = 3), transvaginal repair (n = 2), and other (n = 6). All patients had fecal diversion at the time of gracilis surgery. Thirty-day postoperative surgical site infection at the graft/donor site was 32% (n = 7). At a median follow-up of 22 months (range 2-62), fistula closure was 59% (n = 13). Gracilis interposition was successful in all inflammatory bowel disease patients.

LIMITATIONS

The study was limited by its retrospective nature.

CONCLUSIONS

Gracilis interposition is an effective operative technique for reoperative rectovaginal fistula closure. Patients should be counseled regarding the possibility of graft/donor site infection. See Video Abstract at http://links.lww.com/DCR/B763 .

REPARACIN CON COLGAJO DE GRACILIS PARA LA FSTULA RECTOVAGINAL REOPERATORIA

ANTECEDENTES:El tratamiento quirúrgico de las fístulas rectovaginales recurrentes es muy difícil. La colocación del músculo gracilis entre la vagina y el ano es una técnica avanzada que se utiliza para cerrar las fístulas persistentes. Hemos utilizado este procedimiento para las fístulas recalcitrantes y planteamos la hipótesis de que una interposición del gracilis ofrecería una buena opción de tratamiento para pacientes con fístulas rectovaginales refractarias, independientemente de la etiología subyacente.OBJETIVO:Investigar las tasas de curación de la interposición del gracilis en pacientes con fístulas rectovaginales refractarias.DISEÑO:Tras la aprobación de la junta de revisión institucional, se realizó una revisión retrospectiva de todas las pacientes adultas con un diagnóstico de fístula rectovaginal entre enero de 2009 y agosto de 2020; los que se sometieron a interposición de gracilis para el cierre definitivo de la fístula se incluyeron para el análisis.AJUSTE:Departamento de cirugía colorrectal de un centro terciario en Estados Unidos.PACIENTES:Todas las pacientes adultas con diagnóstico de fístula rectovaginal que se sometieron a interposición de gracilis para cierre definitivo.PRINCIPALES MEDIDAS DE RESULTADO:datos demográficos del paciente, etiología de la fístula rectovaginal, intervención quirúrgica previa, presencia de derivación intestinal, detalles quirúrgicos, morbilidad a los 30 días, recurrencia de la fístula y tiempo hasta la recurrencia. El cierre de la fístula se definió como la ausencia de síntomas clínicos después del cierre del estoma, la detección negativa de la fístula en el enema de gastrograffin y la ausencia de una abertura interna en el examen bajo anestesia.RESULTADOS:Se incluyeron 22 pacientes que tenían una mediana de edad de 43 años (rango 19-64 años) y una mediana de índice de masa corporal de 31 kg / m2 (rango 22-51). La mediana de tiempo entre el intento previo de reparación quirúrgica y la cirugía del gracilis fue de 7 meses (rango 3-17). El número de reparaciones previamente intentadas fue: 1-2 (n = 8), 3-4 (n = 9), y >4 (n = 5). El intento de reparación quirúrgica más reciente fue el colgajo de avance rectal (n = 7), el colgajo transperineal +/- Martius (n = 4), la episioproctotomía (n = 3), la reparación transvaginal (n = 2) y otros (n = 6). Todos los pacientes tenían derivación fecal en el momento de la cirugía gracilis. La infección del sitio quirúrgico posoperatorio a los 30 días en el sitio del injerto / donante fue del 32% (n = 7). Con una mediana de seguimiento de 22 meses (rango 2-62), el cierre de la fístula fue del 59% (n = 13). La interposición de Gracilis fue exitosa en todos los pacientes con enfermedad inflamatoria intestinal.LIMITACIONES:Carácter retrospectivo de los datos.CONCLUSIONES:La interposición de Gracilis es una técnica quirúrgica eficaz para el cierre reoperatorio de la fístula rectovaginal. Se debe asesorar a los pacientes sobre la posibilidad de infección del sitio del injerto / donante. Consulte Video Resumen en http://links.lww.com/DCR/B763 . (Traducción-Dr. Ingrid Melo ).

Long term outcome of multidisciplinary management of urethro-rectal fistula after urologic surgery

Urethro-rectal fistula (URF) is a rare but serious condition whose treatment is poorly codified. This study aims to evaluate the short and long-term results of multidisciplinary management.

MATERIAL AND METHODS

We retrospectively collected the records of patients with URF operated on at the University Hospital of Tours between January 1, 2000 and January 1, 2020. Short-term and long-term results according to management are reported.

RESULTS

The study included 20 patients. As an initial gesture, 11 patients underwent bladder catheterization and colostomy, seven underwent bladder catheterization alone, one underwent graciloplasty, and one, a York Mason procedure. The success rate of initial conservative management was only 5% (1/20). As a secondary or tertiary intervention, ten patients underwent a York Mason procedure and nine underwent graciloplasty. At the end of the study period, with a median follow-up of 50 months, 19 had been effectively treated for URF, 16 were able to have colostomy closure with restoration of digestive continuity while four had a permanent stoma. One patient had anal incontinence, 14% had major stress urinary incontinence.

CONCLUSION

Multidisciplinary care remains a cornerstone of the treatment of URF because iterative surgeries may be required, with an overall success rate of up to 95% at the end of follow-up.

Objective Perfusion Assessment in Gracilis Muscle Interposition—A Novel Software-Based Approach to Indocyanine Green Derived Near-Infrared Fluorescence in Reconstructive Surgery

Background: Gracilis muscle interposition (GMI) is an established treatment option for complex perineal fistulas and reconstruction. The outcome is limited by complications such as necrosis, impaired wound healing and fistula persistence or recurrence. Quantifiable methods of assessing muscle flap perfusion intraoperatively are lacking. This study evaluates a novel and objective software-based assessment of indocyanine green near-infrared fluorescence (ICG-NIRF) in GMI. Methods: Intraoperative ICG-NIRF visualization data of five patients with inflammatory bowel disease (IBD) undergoing GMI for perineal fistula and reconstruction were analyzed retrospectively. A new software was utilized to generate perfusion curves for the specific regions of interest (ROIs) of each GMI by depicting the fluorescence intensity over time. Additionally, a pixel-to-pixel and perfusion zone analysis were performed. The findings were correlated with the clinical outcome. Results: Four patients underwent GMI without postoperative complications within 3 months. The novel perfusion indicators identified here (shape of the perfusion curve, maximum slope value, distribution and range) indicated adequate perfusion. In one patient, GMI failed. In this case, the perfusion indicators suggested impaired perfusion. Conclusions: We present a novel, software-based approach for ICG-NIRF perfusion assessment, identifying previously unknown objective indicators of muscle flap perfusion. Ready for intraoperative real-time use, this method has considerable potential to optimize GMI surgery in the future.

Video-Endoscopic Mobilization of the Gracilis Muscle for Rectourinary Fistula Repair

INTRODUCTION

Transposition of the gracilis has been used in a large number of reconstructive procedures. Its advantage is its proximity to these defects and a good blood supply. Traditionally, the gracilis mobilization is performed by open surgery with one or more incisions. We describe our initial experience with the video-endoscopic mobilization of gracilis.

METHOD

We described a retrospective review of all patients who underwent gracilis muscle mobilization for treatment of rectourethral fistula, performed by video-endoscopy, between March 2013 and September 2017, for treatment of rectourethral fistula. Also, our surgical technique is described in detail.

RESULTS

Three patients, with a mean age of 66.6 years, underwent the procedures. The mean time for mobilization of the gracilis was 107 min (range 60-145). There was no case of donor area infection, no change in the sensitivity of the medial aspect of the thigh or chronic pain. Conversion to open surgery was not necessary in any case. The hospital discharge occurred in average after 4 days. The bladder catheter was removed after 4 weeks after cystography was performed without evidence of leakage. One patient had a recurrence of the fistula.

DISCUSSION

The gracilis is an excellent choice of tissue to be interposed in reconstructive procedures of the perineal region, especially in the treatment of rectourinary fistulas. However, endoscopic harvest of the gracilis muscle has not yet found its way into everyday practice. The results in the treatment of rectourinary fistulas are excellent, with a success rate of 87.7%. Our rate of 67% is below, probably due to the small number of cases. In open surgery, complications are uncommon; however, approximately half of the patients expressed concern about the painful scar, which can be reduced by minimally invasive access.

CONCLUSION

Video-endoscopic mobilization of gracilis muscle for the treatment of rectourethral fistula is feasible and safe. Studies comparing this technique with the conventional mobilization are required.