-
Annals of Laparoscopic and Endoscopic... Jan 2024Flaps and grafts are used for filling dead space, ureteral substitution, and as mesh alternatives. The surgical robot is invaluable in urologic reconstructive surgery...
BACKGROUND AND OBJECTIVE
Flaps and grafts are used for filling dead space, ureteral substitution, and as mesh alternatives. The surgical robot is invaluable in urologic reconstructive surgery due to the ability of the robot to reach the deep pelvis, its minimally invasive access, the ability to use indocyanine green to identify structures and assess tissue perfusion and viability, and ergonomics for the surgeon. Robotic reconstruction can involve tissue transfer in the form of flaps and grafts to provide form and function to organs that have been damaged by iatrogenic injuries, trauma, infections, cancer, radiation injury, or congenital abnormalities. Common flaps and grafts can be readily adapted to the robotic approach. In this literature review, we examine the robotic use of flaps and grafts in reconstructive urology.
METHODS
A thorough literature review was conducted via a PubMed search for predefined terms.
KEY CONTENT AND FINDINGS
Flaps and grafts in reconstructive urology are used for interposition, ureteral substitution, and as mesh alternatives. Omental flaps are used for tissue interposition, or to provide structure and nutrients, and are easily employed with the robot. Various robotic applications of peritoneal flaps have been described. Vascular rectus abdominis musculocutaneous flaps are well-vascularized flaps that occupy dead space and provide structural support, which can be harvested readily with the robot. Sigmoid epiploica are an excellent flap for pelvic reconstruction. Gracilis flaps and fascia lata grafts are well-tolerated and provide space occupying tissue. Boari flaps aid in robotic ureteral reconstruction, especially in the setting of long defects. Oral mucosa is excellent for ureteral or bladder neck reconstruction. Rectal mucosa is well-tolerated and easy to harvest robotically for a variety of urinary tract reconstructive applications. The appendix or ileum can be interposed for repair of damaged ureters.
CONCLUSIONS
Various flaps and grafts have been adapted for robotic reconstructive urology. As the field develops, refinement of techniques and innovation in flaps and employment of the robot will propel this field forward. More studies, especially comparative studies, are needed to elucidate the flaps and grafts that are most likely to be successful with the least morbidity for each use case.
PubMed: 38938988
DOI: 10.21037/ales-23-36 -
International Urology and Nephrology Jun 2024Acquired prostatic fistula (PF) was defined as a connection between the prostatic urethra and the rectum, symphysis, peritoneum, or ending freely in the periprostatic...
PURPOSE
Acquired prostatic fistula (PF) was defined as a connection between the prostatic urethra and the rectum, symphysis, peritoneum, or ending freely in the periprostatic area. This study aims to report our experience with PF presentation, diagnosis, and treatment.
METHODS
From January 2014 to February 2024, we retrospectively analyzed a prospectively maintained database from two urologic university hospitals to identify men with acquired PF. Diagnosis was based on post-intervention symptoms, including pneumaturia, fecaluria, rectal urine leakage, periprostatic inflammation or abscess, completed by radiological assessment using retrograde urethrogram, CT, or MRI. Standard cystoscopy and/or rectosigmoidoscopy assessed bladder and rectal integrity. Patients with post-prostatectomy fistulas were excluded.
RESULTS
Thirteen patients with a mean age of 66.54 ± 7.40 years were identified. The most commonly presenting symptoms were fecaluria/pneumaturia 54%, rectal urine leakage 31%, and recurrent urinary tract infection 31%. The mean time from the initial treatment to fistula development was 22.28 ± 20.53 months (0.1-59 months), and from diagnosis to repair was 3.5 ± 3 months (1-12 months). Cumulative closure rates (success rate) post-first and second attempts were 77% (10 patients) and 92% (12 patients), respectively; one patient declined definitive surgery, maintaining a persistent fistula after bladder drainage.
CONCLUSION
Clinical suspicion and detailed diagnosis are essential for formulating a tailored treatment plan for prostatic fistulas, which are successfully manageable in many patients. Complex cases benefit from a multidisciplinary approach, with individualized therapy based on etiology, severity, and recurrence of PF, facilitating effective closure.
PubMed: 38937414
DOI: 10.1007/s11255-024-04092-8 -
Animals : An Open Access Journal From... Jun 2024Atresia Ani (AA) is a rare congenital anomaly in companion animals affecting rectal and anal development. Its incidence in cats remains unreported. This retrospective...
Atresia Ani (AA) is a rare congenital anomaly in companion animals affecting rectal and anal development. Its incidence in cats remains unreported. This retrospective study aimed to characterize age, body condition, fistula size, and perioperative outcomes in Type IV Atresia Ani (with recto-vaginal fistula) in female cats. Surgical intervention is the primary treatment. Conducted over 2 years, the study included nine female cats diagnosed with Type IV Atresia Ani and recto-vaginal fistula undergoing surgery. Statistical analysis used the R program (version 4.2.1) with Rstudio extension. Significant results were observed at a 95% confidence interval and < 0.05. The condition had an incidence of 4.7% among the 192 cats evaluated over a 2-year period. The findings suggest that a body condition score of 3, an age of 3 to 4 weeks, and a fistula length of 1 to 2 mm correlated with better surgical outcomes, reducing the likelihood of fecal incontinence and anal stenosis development, and enhancing defecation awareness during the perioperative period. This study is the first to report the disease incidence in cats undergoing surgery, according to the authors' knowledge.
PubMed: 38929357
DOI: 10.3390/ani14121738 -
Current Status and Role of Artificial Intelligence in Anorectal Diseases and Pelvic Floor Disorders.JSLS : Journal of the Society of... 2024Anorectal diseases and pelvic floor disorders are prevalent among the general population. Patients may present with overlapping symptoms, delaying diagnosis, and... (Review)
Review
BACKGROUND
Anorectal diseases and pelvic floor disorders are prevalent among the general population. Patients may present with overlapping symptoms, delaying diagnosis, and lowering quality of life. Treating physicians encounter numerous challenges attributed to the complex nature of pelvic anatomy, limitations of diagnostic techniques, and lack of available resources. This article is an overview of the current state of artificial intelligence (AI) in tackling the difficulties of managing benign anorectal disorders and pelvic floor disorders.
METHODS
A systematic literature review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. We searched the PubMed database to identify all potentially relevant studies published from January 2000 to August 2023. Search queries were built using the following terms: AI, machine learning, deep learning, benign anorectal disease, pelvic floor disorder, fecal incontinence, obstructive defecation, anal fistula, rectal prolapse, and anorectal manometry. Malignant anorectal articles and abstracts were excluded. Data from selected articles were analyzed.
RESULTS
139 articles were found, 15 of which met our inclusion and exclusion criteria. The most common AI module was convolutional neural network. researchers were able to develop AI modules to optimize imaging studies for pelvis, fistula, and abscess anatomy, facilitated anorectal manometry interpretation, and improved high-definition anoscope use. None of the modules were validated in an external cohort.
CONCLUSION
There is potential for AI to enhance the management of pelvic floor and benign anorectal diseases. Ongoing research necessitates the use of multidisciplinary approaches and collaboration between physicians and AI programmers to tackle pressing challenges.
Topics: Humans; Pelvic Floor Disorders; Artificial Intelligence; Rectal Diseases; Anus Diseases; Manometry; Fecal Incontinence
PubMed: 38910957
DOI: 10.4293/JSLS.2024.00007 -
International Journal of Surgery Case... Jul 2024Rectovaginal fistula is a complication that may occur due to rectal injury during vaginal reconstructive surgery. To prevent these complications, the recognition of the...
INTRODUCTION AND IMPORTANCE
Rectovaginal fistula is a complication that may occur due to rectal injury during vaginal reconstructive surgery. To prevent these complications, the recognition of the injury is an important factor so that primary repair can be done. The primary repair can reduce the risk of complications such as fistula formation, and also reduce the physical and psychological impact on the patient.
CASE PRESENTATION
A 33-year-old woman, came with a chief complaint of fecal leakage from the vagina and abdominal pain three months before admission with a history of vaginal reconstructive surgery due to vaginal agenesis. Eleven years after the reconstruction, the patient was diagnosed with recurrent obstruction caused by vaginal synechia. During the surgery of synechia release, rectum injury occurred. Even though primary closure repair was done at that time, several months later there was a complication of rectovaginal fistule formation in the form of fecal leakage from the vagina. The corrective surgery is performed in collaboration with a surgical gastroenterologist.
CLINICAL DISCUSSION
Iatrogenic rectal injury may occur during gynecological surgery. A fistula that occurs after the reconstruction of vaginal agenesis is a high-type rectovaginal fistula, making the repairs more complex. Collaboration surgery between surgical gastroenterologist and gynecologist may be an option in such cases.
CONCLUSION
Rectovaginal fistula is a rare but serious complication of vaginal reconstructive surgery. Early recognition, immediate management, and postoperative follow-up are essential in cases of rectal injury during vaginal reconstructive surgery.
PubMed: 38901383
DOI: 10.1016/j.ijscr.2024.109856 -
World Journal of Clinical Cases Jun 2024Computed tomography (CT) small bowel three-dimensional (3D) reconstruction is a powerful tool for the diagnosis of small bowel disease and can clearly show the...
BACKGROUND
Computed tomography (CT) small bowel three-dimensional (3D) reconstruction is a powerful tool for the diagnosis of small bowel disease and can clearly show the intestinal lumen and wall as well as the outside structure of the wall. The horizontal axis position can show the best adjacent intestinal tube and the lesion between the intestinal tubes, while the coronal position can show the overall view of the small bowel. The ileal end of the localization of the display of excellent, and easy to quantitative measurement of the affected intestinal segments, the sagittal position for the rectum and the pre-sacral lesions show the best, for the discovery of fistulae is also helpful. Sagittal view can show rectal and presacral lesions and is useful for fistula detection. It is suitable for the assessment of inflammatory bowel disease, such as assessment of disease severity and diagnosis and differential diagnosis of the small bowel and mesenteric space-occupying lesions as well as the judgment of small bowel obstruction points.
CASE SUMMARY
Bleeding caused by small intestinal polyps is often difficult to diagnose in clinical practice. This study reports a 29-year-old male patient who was admitted to the hospital with black stool and abdominal pain for 3 months. Using the combination of CT-3D reconstruction and capsule endoscopy, the condition was diagnosed correctly, and the polyps were removed using single-balloon enteroscopy-endoscopic retrograde cholangiopancreatography without postoperative complications.
CONCLUSION
The role of CT-3D in gastrointestinal diseases was confirmed. CT-3D can assist in the diagnosis and treatment of gastrointestinal diseases in combination with capsule endoscopy and small intestinal microscopy.
PubMed: 38899307
DOI: 10.12998/wjcc.v12.i16.2831 -
Journal of Visceral Surgery Jun 2024Treatment of ulcerative colitis (UC) has been revolutionized by the arrival of biotherapies and technical progress in interventional endoscopy and surgery. (Sub)total... (Review)
Review
Treatment of ulcerative colitis (UC) has been revolutionized by the arrival of biotherapies and technical progress in interventional endoscopy and surgery. (Sub)total emergency colectomy is required in the event of complicated severe acute colitis: colectasis, perforation, hemorrhage, organ failure. Corticosteroid therapy is the reference treatment for uncomplicated severe acute colitis, while infliximab and ciclosporin are 2nd-line treatments. At each step, before and after each line of treatment failure, surgery should be considered as an option. In cases refractory to medical treatment, the choice between surgery and change in medication must weigh the chronic symptoms associated with the disease against the risks of postoperative complications and functional sequelae inherent to surgery. Detection of dysplastic lesions necessitates chromoendoscopic imaging with multiple biopsies and anatomopathological verification. Endoscopic treatment of these lesions remains reserved for selected patients. These different indications call for multidisciplinary medical-surgical discussion. Total coloproctectomy with ileo-anal anastomosis (TCP-IAA) is the standard surgery, and it holds out hope for healing. Modalities depend on patient characteristics, previous emergency colectomy, and presence of dysplasia. It may be carried out in one, in two modified, or in three phases. The main complications are anastomotic fistula, short-term pouch-related fistula, ileo-anal pouch syndrome, pouchitis and long-term digestive and sexual disorders. For selected cases, an alternative can consist in total colectomy with ileo-rectal anastomosis or permanent terminal ileostomy. The objective of this update is to clarify the indications, modalities, and results of surgical treatment of ulcerative colitis in accordance with the most recent data in the literature.
Topics: Colitis, Ulcerative; Humans; Proctocolectomy, Restorative; Treatment Outcome; Colectomy; Postoperative Complications
PubMed: 38897710
DOI: 10.1016/j.jviscsurg.2024.05.004 -
European Journal of Obstetrics,... Mar 2024Vaginal mesh has been used for years to try to improve the results of pelvic organ prolapse surgery, but current evidence does not confirm this improvement and instead... (Review)
Review
INTRODUCTION AND HYPOTHESIS
Vaginal mesh has been used for years to try to improve the results of pelvic organ prolapse surgery, but current evidence does not confirm this improvement and instead describes serious and frequent adverse events.
CLINICAL CASE
64-year-old patient with rectal extrusion of posterior vaginal mesh placed 8 years earlier, and persistent left ischiorectal fistula refractory to surgery. She required 5 surgeries, carried out jointly between gynecology and general surgery, to solve, firstly, the bilateral perianal abscess secondary to extrusion of the posterior vaginal mesh into the rectum and then the persistent left ischiorectal fistula, despite the removal of the material prosthetic. Finally, the fistula was solved by injection of platelet-rich plasma.
CONCLUSIONS
Vaginal mesh complications often need a multidisciplinary approach, and treatment may require multiple approaches and more than one surgical procedure. In the case of a persistent fistula refractory to surgery, after removing the mesh, non-invasive regenerative therapies that promote vascular growth and tissue regeneration could be considered such as platelet-rich plasma.
PubMed: 38878521
DOI: 10.1016/j.ejogrb.2024.03.040 -
The Pan African Medical Journal 2024anorectal malformations (ARM) are among the most common congenital anomalies in pediatric surgery. Early detection and management of vestibular fistulas are crucial for...
INTRODUCTION
anorectal malformations (ARM) are among the most common congenital anomalies in pediatric surgery. Early detection and management of vestibular fistulas are crucial for optimal outcomes, capitalizing on the pliability of sphincter muscles and the preservation of somatosensory integration. This study aimed to assess the incidence, clinical presentation, and management outcomes of vestibular fistula ARM in a low-income hospital setting.
METHODS
a retrospective audit was conducted on female pediatric patients aged up to 12 years treated for vestibular fistula ARM from January 1, 2011, to June 30, 2016. Data were collected from medical records, and patients were categorized into one of three surgical management groups. Clinical assessments, preoperative procedures, and surgical interventions were meticulously documented.
RESULTS
among 656 neonates, the incidence of vestibular fistula ARM was 8.2%. Patients presented at various ages, with 69.4% being early presenters. Notably, 11.1% of cases presented after 30 weeks of age. Functional fistula, constipation, and bowel obstruction were common presenting symptoms. Associated anomalies were relatively low. The choice of surgical approach varied, with a predominant 3-stage at 68%. Complication development did not significantly differ between surgical groups (p-value 0.083). Immediate postoperative complications were minimal, but complications at definitive anoplasty varied among the surgical groups. Anal strictures and fistula recurrence were noted. At 12 months post-surgery, anal strictures persisted in 9 participants.
CONCLUSION
this study highlights the challenges and outcomes associated with vestibular fistula ARM in a resource-constrained setting. The 3-stage approach, despite its historical preference, demonstrated suboptimal outcomes. A 2-stage procedure appears to offer a balanced alternative, particularly suitable for low-income healthcare systems. Further research and collaborative efforts are essential to refine the management of vestibular fistula ARM and improve patient outcomes.
Topics: Humans; Female; Retrospective Studies; Anorectal Malformations; Child; Infant; Child, Preschool; Infant, Newborn; Postoperative Complications; Incidence; Treatment Outcome; Poverty; Developing Countries; Recurrence; Rectal Fistula
PubMed: 38854868
DOI: 10.11604/pamj.2024.47.121.42919 -
Stem Cell Research & Therapy Jun 2024Mesenchymal stem cell treatment (MST) has emerged as a new therapeutic strategy for Crohn's perianal fistulas. It has been demonstrated that a fibrotic tract on MRI with...
BACKGROUND
Mesenchymal stem cell treatment (MST) has emerged as a new therapeutic strategy for Crohn's perianal fistulas. It has been demonstrated that a fibrotic tract on MRI with a MAGNIFI-CD score ≤ 6 is the best predictor for long-term clinical closure. Therefore, the aim of the current study was to analyse the effectiveness of MST for complex Crohn's perianal fistulas based on MRI.
METHODS
Consecutive patients with complex Crohn's perianal fistulas, previously failing both anti-TNF treatment and surgical closure, who had surgical closure of the internal opening with MST were included. The primary endpoint was radiological remission of the fistula(s) defined as a MAGNIFI-CD ≤ 6 on MRI, read by an experienced radiologist.
RESULTS
Between December 2019 and March 2023, 30 patients (15 males) with 48 fistula tracts were included with a median follow-up of 16.5 months. Radiological remission was achieved in thirteen patients (43.3%) after a median follow-up of 5.0 months (IQR 3.0-6.0). The median MAGNIFI-CD at baseline was 15.0 (IQR 7.0-20.0) which significantly decreased to 8.0 (IQR 3.0-15.0) after treatment (p = 0.001). Clinical closure was achieved in 21 patients (70.0%). Three patients (14.3%) developed a recurrence during long-term FU, all with clinically closed fistula(s), but no radiological remission. The median PDAI decreased significantly from 10.5 (IQR 7.0-14.0) to 4.0 (IQR 0.0-7.3) (p = 0.001).
CONCLUSION
MST is a promising treatment strategy for therapy refractory Crohn's perianal fistulas, resulting in > 40% radiological remission, clinical closure in 70% and a significant improvement in quality of life. No recurrences were seen in patients with radiological remission.
Topics: Humans; Male; Crohn Disease; Female; Mesenchymal Stem Cell Transplantation; Rectal Fistula; Adult; Middle Aged; Magnetic Resonance Imaging; Treatment Outcome
PubMed: 38853278
DOI: 10.1186/s13287-024-03779-0