ArticleWorld journal of surgery2019
Comparison of Preoperative and Postoperative MRI After Fistula-in-Ano Surgery: Lessons Learnt from An Audit of 1323 MRI At a Single Centre.
Article in World journal of surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.
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Who cites it
13 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.
- Heterogeneity in outcome selection, definition and measurement in studies assessing the treatment of cryptoglandular anal fistula: findings from a systematic review.Techniques in coloproctology · 2021Pooled it
- Is Primary Opening of Fistula-in-Ano Always at Dentate Line: Correlation Between MRI and Operative Findings in 379 Patients.Clinical and experimental gastroenterology · 2025Article
- Recent advances in the diagnosis and treatment of complex anal fistula.Annals of coloproctology · 2024Review
- Dynamic contrast-enhanced MR imaging in identifying active anal fistula after surgery.BMC medical imaging · 2024Article
- A magnetic resonance imaging-based decision-making tool for predicting complex anal fistulas healing in the early postoperative period.BMC gastroenterology · 2023Article
- Predictors of outcome in cryptoglandular anal fistula according to magnetic resonance imaging: A systematic review.Health science reports · 2023Article
- Comparison of contrast-enhanced fat-suppressed T1-3D-VIBE and T1-TSE MRI in evaluating anal fistula.Abdominal radiology (New York) · 2022Article
- A New Anatomical Pathway of Spread of Pus/Sepsis in Anal Fistulas Discovered on MRI and Its Clinical Implications.Clinical and experimental gastroenterology · 2021Article
- Long-Term Clinical Results of Use of an Anal Fistula Plug for Treatment of Low Trans-Sphincteric Anal Fistulas.Medical science monitor : international medical journal of experimental and clinical research · 2020Article
- Formation rate of secondary anal fistula after incision and drainage of perianal Sepsis and analysis of risk factors.BMC surgery · 2020Article
- Management of Complex Cryptoglandular Anal Fistula: Challenges and Solutions.Clinical and experimental gastroenterology · 2020Review
- Anal fistula and pilonidal sinus disease coexisting simultaneously: An audit in a cohort of 1284 patients.International wound journal · 2019Article
- Extreme horseshoe and circumanal anal fistulas-challenges in diagnosis and management.Tzu chi medical journalArticle
Corrections and comments
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Authors and funding
1 author at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aimSeveral studies have evaluated the efficacy of preoperative MRI in fistula-in-ano. However, the evaluation of MRI after fistula-in-ano surgery has never been done. The aim was to evaluate the utility of MRI in postoperative period after fistula-in-ano surgery.
methodsPreoperative MRI was done in all the patients presenting with fistula-in-ano. Postoperative MRI was done to check radiological healing in clinically healed fistulas or when postoperative complication/healing problem was seen. The postoperative MRI was compared with preoperative MRI and correlated with the clinical picture.
resultsA total of 1323 MRI were done in 1003 fistula-in-ano patients, out of which 702 patients underwent surgery. In 702 patients, there were 361 recurrent fistulas, 153 had associated abscess, 388 had multiple tracts, 146 had horseshoe tract, and 76 had supralevator fistula. In total, 320 postoperative MRI scans were done in 180/702 patients. The requirement of postoperative MRI was significantly higher in complex (grades III-V) than simple fistulas (grades I-II) [43.5% (136/313) vs. 11.3% (44/389), respectively, P < 0.0001]. In early postoperative period (8 weeks), healing (granulation) tissue was difficult to differentiate from active fistula tract/pus. The complete radiological healing took at least 10-12 weeks. So getting MRI scan for the assessment of healing was more accurate after 12 weeks. MRI was very accurate to identify postoperative complications like abscess, missed tract or non-healing of a tract. MRI detected such complications even in apparently clinically healed tracts. Closure/healing of internal opening and intersphincteric tract was assessed accurately by MRI and correlated well with the fistula healing.
conclusionsMRI is highly useful to assess healing and detect complications after fistula surgery.
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