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Verkade C, Brouwers L, Stijns J, van Dal V, Wasowicz DK, de Kiefte M, van Tilborg F, Zimmerman DDE. Validation of a 3D-printed model of cryptoglandular perianal fistulas. Tech Coloproctol 2024; 28:59. [PMID: 38801550 DOI: 10.1007/s10151-024-02925-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 03/31/2024] [Indexed: 05/29/2024]
Abstract
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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Affiliation(s)
- C Verkade
- Colorectal Research Group, Department of Surgery, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands
- Department of Surgery, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands
| | - L Brouwers
- Colorectal Research Group, Department of Surgery, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands
- Department of Surgery, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands
| | - J Stijns
- Colorectal Research Group, Department of Surgery, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands
- Department of Surgery, University Hospital Brussels, Brussels, Belgium
| | - V van Dal
- Department of Radiology, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands
| | - D K Wasowicz
- Colorectal Research Group, Department of Surgery, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands
- Department of Surgery, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands
| | - M de Kiefte
- Colorectal Research Group, Department of Surgery, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands
- 3D Laboratory, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands
| | - F van Tilborg
- Colorectal Research Group, Department of Surgery, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands
- 3D Laboratory, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands
| | - D D E Zimmerman
- Colorectal Research Group, Department of Surgery, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands.
- Department of Surgery, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands.
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Garg P, Ladukar L, Yagnik VD, Bhattacharya K, Kaur G. Rectovaginal Fistulas Not Involving the Rectovaginal Septum Should Be Treated Like Anal Fistulas: A New Concept and Proposal for a Reclassification of Rectovaginal Fistulas. Clin Exp Gastroenterol 2024; 17:97-108. [PMID: 38646156 PMCID: PMC11032160 DOI: 10.2147/ceg.s456855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 04/12/2024] [Indexed: 04/23/2024] Open
Abstract
Background Many rectovaginal fistulas(RVF), especially low RVF, do not involve/penetrate the RV-septum, but due to lack of proper nomenclature, such fistulas are also managed like RVF (undertaking repair of RV-septum) and inadvertently lead to the formation of a high RVF (involving RV-septum) in many cases. Therefore, REctovaginal Fistulas, Not Involving the Rectovaginal Septum, should be Treated like Anal fistulas(RENISTA) to prevent any risk of injury to the RV septum. This concept(RENISTA) was tested in this study. Methods RVFs not involving RV-septum were managed like anal fistulas, and the RV-septum was not cut/incised. MRI, objective incontinence scoring, and anal manometry were done preoperatively and postoperatively. High RVF (involving RV-septum) were excluded. Results Twenty-seven patients with low RVF (not involving RV-septum) were operated like anal fistula[age:35.2±9.2 years, median follow-up-15 months (3-36 months)]. 19/27 were low fistula[<1/3 external anal sphincter(EAS) involved] and fistulotomy was performed, whereas 8/27 were high fistula (>1/3 EAS involved) and underwent a sphincter-sparing procedure. Three patients were excluded. The fistula healed well in 22/24 (91.7%) patients and did not heal in 2/24 (8.3%). The healing was confirmed on MRI, and there was no significant change in mean incontinence scores and anal pressures on tonometry. RV-septum injury did not occur in any patient. Conclusions RVF not involving RV-septum were managed like anal fistulas with a high cure rate and no significant change in continence. RV-septum injury or formation of RVF with septum involvement did not occur in any patient. The RENISTA concept was validated in the present study. A new classification was developed to prevent any inadvertent injury to the RV-septum.
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Affiliation(s)
- Pankaj Garg
- Department of Colorectal Surgery, Garg Fistula Research Institute (GFRI), Panchkula, Haryana, India
| | - Laxmikant Ladukar
- Department of Surgery, Ladukar Surgical Hospital, Bramhapuri, Maharashtra, India
| | - Vipul D Yagnik
- Department of Surgery, Banas Medical College and Research Institute, Palanpur, Gujarat, India
| | - Kaushik Bhattacharya
- Department of Surgery, MGM Medical College and LSK Hospital, Kishanganj, Bihar, India
| | - Gurleen Kaur
- Department of Pharmacology, Adesh Medical College and Hospital, Shahbad, Haryana, India
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Besendörfer M, Langer L, Carbon R, Weiss C, Müller H, Diez S. Treatment of pediatric fistula-in-ano-Sphincter-sparing non-cutting seton placement as the future treatment of choice? Front Surg 2023; 10:1144425. [PMID: 37114148 PMCID: PMC10126327 DOI: 10.3389/fsurg.2023.1144425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 03/23/2023] [Indexed: 04/29/2023] Open
Abstract
Background Therapeutic principles of fistula-in-ano (FIA) are lacking evidence-based consensus on treatment options. Non-cutting, sphincter-sparing options have not been published for infancy and childhood FIA. Patients and methods We are presenting retrospective data on FIA treatment with non-cutting seton placement between 2011 and 2020. Data were collected based on medical records and complemented by patients' contact for follow-up analyses between November 2021 and October 2022. Data were analyzed regarding the outcome variables of recurrent FIA and recurrent perianal abscess. Furthermore, outcomes in different age groups were compared (<1/1.5-12 years of age). Results Treatment duration with non-cutting seton was at a median of 4.6 months and was not associated with recurrent FIA (p = 0.8893). Overall recurrence rate of FIA within an observation time of 9 months postsurgically was at 7% (n = 3/42) and was only seen in infancy, whereas recurrent perianal abscess was mainly observable in children (n = 2, p = 0.2132). Comparison of age groups revealed no significant differences. Of the 42 included patients, 37 responded in the follow-up analysis, resulting in a response rate of 88% with a median follow-up time of 4.9 years. Fecal incontinence was postsurgically only seen in two patients, who were diagnosed prior to surgery and symptoms remained unchanged. Conclusions Non-cutting seton placement might be a promising option in the treatment of FIA in infancy and childhood. Perioperative settings like duration of placed seton and antibiotic treatment have to be discussed in further prospective, enlarged population-based studies.
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Affiliation(s)
- Manuel Besendörfer
- Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Department of Surgery, Section of Pediatric Surgery, University Hospital Erlangen, Erlangen, Germany
| | - Laurin Langer
- Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Department of Surgery, Section of Pediatric Surgery, University Hospital Erlangen, Erlangen, Germany
| | - Roman Carbon
- Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Department of Surgery, Section of Pediatric Surgery, University Hospital Erlangen, Erlangen, Germany
| | - Christel Weiss
- Department of Medical Statistics, Biomathematics, and Information Processing, Medical Faculty Mannheim of Heidelberg University, Mannheim, Germany
| | - Hanna Müller
- Division of Neonatology and Pediatric Intensive Care, Department of Pediatrics, University Hospital Marburg, University of Marburg, Marburg, Germany
| | - Sonja Diez
- Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Department of Surgery, Section of Pediatric Surgery, University Hospital Erlangen, Erlangen, Germany
- Correspondence: Sonja Diez
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Stijns J, Zimmerman DDE. Anal fistula, there is more than meets the eye! Tech Coloproctol 2022; 26:331-332. [DOI: 10.1007/s10151-022-02615-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 03/14/2022] [Indexed: 12/21/2022]
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Is the Goligher classification a valid tool in clinical practice and research for hemorrhoidal disease? Tech Coloproctol 2022; 26:387-392. [PMID: 35141793 PMCID: PMC9018630 DOI: 10.1007/s10151-022-02591-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 01/31/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND The most widely used classification for hemorrhoidal disease (HD) is the Goligher classification, which ranks presence and severity of prolapse in four grades. Since physicians base this gradation on medical history and physical examination, it might be prone to interobserver variability. Furthermore, the gradation impacts the treatment of choice which makes reproducibility of utmost importance. The aim of this study was to determine the interobserver variability of Goligher classification among surgeons in the Netherlands. METHODS A single-choice survey was used. The first part consisted of questions concerning baseline characteristics and the use of the Goligher classification in routine clinical practice. In the second part, to assess interobserver variability, we asked gastrointestinal surgeons and residents who routinely treat HD to review 25 photographs (with given timing as during rest or push) of patients with HD and classify the gradation using the Goligher classification. The survey was sent by email on April 19, 2021 and was available online until July 5, 2021. Interobserver variability was assessed using Fleiss' Kappa test. RESULTS A total of 329 gastrointestinal surgeons, fellows and residents were sent an invitation email, of whom 95 (29%) completed the survey. Among the respondents, 87% indicated that they use the Goligher classification in clinical practice. Eighty-one percent found the classification helpful and 63% classified HD according to Goligher and followed the guidelines for treatment of HD accordingly. The interobserver variability showed an overall fair strength of agreement, with a Fleiss' Kappa (κ) of 0.376 (95% CI 0.373-0.380). There was a moderate agreement for grade I and IV HD with a κ statistic of 0.466 and 0.522, respectively. For grades II and III, there was a lower (fair) strength of agreement with 0.206 and 0.378, respectively. CONCLUSIONS The fair interobserver variability is disappointing and demonstrates the need for a more reliable, and internationally accepted, classification for HD. A new classification should enable more uniformity in treating HD and in comparing outcomes of future trials and prospective registries. The protocol for a Delphi study for a new classification system is currently being prepared and led by an international research group.
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Schneider R, Ommer A. Spaltung von Analfisteln – noch zeitgemäß? COLOPROCTOLOGY 2022. [DOI: 10.1007/s00053-021-00583-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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van Reijn-Baggen DA, Dekker L, Elzevier HW, Pelger RCM, Han-Geurts IJM. Management of chronic anal fissure: results of a national survey among gastrointestinal surgeons in the Netherlands. Int J Colorectal Dis 2022; 37:973-978. [PMID: 35194670 PMCID: PMC8976773 DOI: 10.1007/s00384-022-04115-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/16/2022] [Indexed: 02/06/2023]
Abstract
BACKGROUND Chronic anal fissure (CAF) is a common, bothersome condition frequently accompanied by pelvic floor complaints. Despite current guidelines, optimal management is challenging. The aim of this study is to evaluate current management of CAF among gastrointestinal surgeons in the Netherlands. METHODS Dutch gastrointestinal surgeons and residents were sent a survey invitation by email, which was available online between June 2021 and September 2021. The questionnaire consisted of 21 questions concerning work experience, physical examination, diagnostic and surgical techniques, and follow-up. RESULTS Overall, 106 (33%) respondents completed the survey. Most respondents (59%) had at least 10 years of experience in treating CAF. Only 23% always addressed pelvic floor complaints. Fifty-one percent performed digital rectal examination and 22% always, or almost always, examined the pelvic floor muscles. Most respondents started treatment with fibers and/or laxatives and ointment (96%). Diltiazem was in 90% the preferred ointment. Twenty-two percent referred patients for pelvic floor physical therapy. Botulinum toxin was in 54% performed under general or spinal anesthesia or sedation. The surgical procedure of choice was fissurectomy (71%) followed by lateral internal sphincterotomy (27%). Fissurectomy was in 51% always combined with botulinum toxin. Fifty-seven percent of the respondents preferred a physical follow-up appointment. CONCLUSION Guideline recommendations are largely followed in the Netherlands, starting with conservative measures followed by surgical procedures. Surgeons do not consistently assess pelvic floor complaints, nor do they routinely examine the pelvic floor muscles. Awareness of pelvic floor dysfunctions is important to refer patients for pelvic floor physical therapy.
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Affiliation(s)
- Danielle A. van Reijn-Baggen
- Department of Surgery, Proctos Clinic, Bilthoven, The Netherlands ,Department of Urology, Leiden University Medical Center, Leiden, The Netherlands
| | - Lisette Dekker
- Department of Surgery, Proctos Clinic, Bilthoven, The Netherlands ,Department of Surgery, Amsterdam University Medical Center, Location AMC, Amsterdam, The Netherlands
| | - Henk W. Elzevier
- Department of Urology, Leiden University Medical Center, Leiden, The Netherlands ,Department of Medical Decision Making, Leiden University Medical Center, Leiden, The Netherlands
| | - Rob C. M. Pelger
- Department of Urology, Leiden University Medical Center, Leiden, The Netherlands
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Garg P, Kaur B, Yagnik VD, Dawka S, Menon GR. Guidelines on postoperative magnetic resonance imaging in patients operated for cryptoglandular anal fistula: Experience from 2404 scans. World J Gastroenterol 2021; 27:5460-5473. [PMID: 34588745 PMCID: PMC8433608 DOI: 10.3748/wjg.v27.i33.5460] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 06/12/2021] [Accepted: 08/05/2021] [Indexed: 02/06/2023] Open
Abstract
Magnetic resonance imaging (MRI) is considered the gold standard for the evaluation of anal fistulas. There is sufficient literature available outlining the interpretation of fistula MRI before performing surgery. However, the interpretation of MRI becomes quite challenging in the postoperative period after the surgery of fistula has been undertaken. Incidentally, there are scarce data and no set guidelines regarding analysis of fistula MRI in the postoperative period. In this article, we discuss the challenges faced while interpreting the postoperative MRI, the timing of the postoperative MRI, the utility of MRI in the postoperative period for the management of anal fistulas, the importance of the active involvement and experience of the treating clinician in interpreting MRI scans, and the latest advancements in the field.
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Affiliation(s)
- Pankaj Garg
- Department of Colorectal Surgery, Garg Fistula Research Institute, Panchkula 134113, Haryana, India
- Department of Colorectal Surgery, Indus International Hospital, Mohali 140201, Punjab, India
| | - Baljit Kaur
- Department of Radiology, SSRD Magnetic Resonance Imaging Institute, Chandigarh 160011, Chandigarh, India
| | - Vipul D Yagnik
- Department of Surgical Gastroenterology, Nishtha Surgical Hospital and Research Center, Patan 384265, Gujarat, India
| | - Sushil Dawka
- Department of Surgery, SSR Medical College, Belle Rive, Mauritius
| | - Geetha R Menon
- Department of Statistics, Indian Council of Medical Research, New Delhi 110029, New Delhi, India
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