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Walk the evidence base by book and chapter — the raw source passages that ground Ask, Differential, and the rest.

• A mapping review of sacrococcygeal pilonidal sinus disease1 passage
• A prospective randomized trial of transanal hemorrhoidal dearterialization with mucopexy versus ultrasonic scalpel hemorrhoidectomy for grade III hemorrhoids1 passage
• A systematic review and meta-analysis of the safety and efficacy of fistula laser closure1 passage
• A systematic review and meta-analysis of the use of methylene blue to improve the lymph node harvest in rectal cancer surgery1 passage
• A systematic review and network meta-analysis comparing energy devices used in colorectal surgery1 passage
• A systematic review of classification systems for pilonidal sinus1 passage
• A systematic review of the literature assessing the outcomes of stapled haemorrhoidopexy versus open haemorrhoidectomy1 passage
• A systematic review of the management of anal fistula in infants1 passage
• A systematic review of the quality of reporting of interventions in the surgical treatment of Crohn's anal fistula: an assessment using the TIDiER and Blencowe frameworks1 passage
• Abdominal massage to prevent ileus after colorectal surgery. A single-center, prospective, randomized clinical trial: the MATRAC Trial1 passage
• Antibiotic prophylaxis in colorectal surgery: are oral, intravenous or both best and is mechanical bowel preparation necessary?1 passage
• Benefits of flavonoid and metronidazole use after excisional hemorrhoidectomy: a randomized double-blind clinical trial1 passage
• Best clinical practice recommendations for the management of symptomatic hemorrhoids via laser hemorrhoidoplasty: the LHP recommendations25 passages
• Bilateral versus unilateral botulinum toxin injections for chronic anal fissure: a randomised trial1 passage
• Botulinum toxin injection for management of post-haemorrhoidectomy pain: an updated systematic review and meta-analysis of randomised clinical trials1 passage
• Bridging the gap: a systematic literature review and meta-analysis on the management of rectal wall defect after transanal excision1 passage
• Circular (purse-string) vs primary skin closure following stoma closure: an up-to-date systematic review and meta-analysis1 passage
• Colorectal resection via natural orifice specimen extraction versus conventional laparoscopic extraction: a meta-analysis with meta-regression1 passage
• Comparing keystone and Limberg flaps for pilonidal sinus: Does flap choice influence patient satisfaction?1 passage
• Comparing the effectiveness of prophylactic strategies for parastomal hernia prevention: a network meta-analysis1 passage
• Comparison of colonic stents, stomas and resection for obstructive left colon cancer: a meta-analysis1 passage
• Does caffeine enhance bowel recovery after elective colorectal resection? A prospective double-blinded randomized clinical trial1 passage
• Does robotics add value in Hartmann's reversal? A PRISMA-based systematic review and meta-analysis of perioperative outcomes25 passages
• Early botulinum toxin injection reduces pain after hemorrhoidectomy: a pilot study1 passage
• Early diagnosis of Crohn's disease in patients presenting with a perianal fistula: systematic review and development of a perianal red flags index1 passage
• Early vs. standard reversal ileostomy: a systematic review and meta-analysis1 passage
• Effect of Kono-S anastomosis on reducing postoperative recurrence rates in Crohn's disease: a systematic review and meta-analysis1 passage
• Effects of low anterior resection syndrome after colorectal cancer resections on health-related quality of life: a systematic review and meta-analysis1 passage
• Efferent limb stimulation prior to loop ileostomy closure: a systematic review and meta-analysis1 passage
• Efficacy of different surgical treatments for management of anal fistula: a network meta-analysis1 passage
• Efficacy of micronized purified flavonoid fraction in reducing pain after anal fistula surgery: a randomized controlled trial1 passage
• Efficacy of transversus abdominis plane (TAP) block in colorectal surgery: a systematic review and meta-analysis1 passage
• Evaluation and management of perianal abscess and anal fistula: SICCR position statement1 passage
• Evaluation of the efficacy of a Propionibacterium extract gel in wound healing and symptom relief after open excisional hemorrhoidectomy: a randomized clinical study1 passage
• Failure rates and complications of four sphincter-sparing techniques for the treatment of fistula-in-ano: a systematic review and network meta-analysis1 passage
• Fascial closure techniques at stoma reversal: a systematic review and network meta-analysis of randomized controlled trials1 passage
• Heterogeneity in outcome selection, definition and measurement in studies assessing the treatment of cryptoglandular anal fistula: findings from a systematic review1 passage
• Ileal neoappendicostomy for antegrade colonic enema (ACE) in the treatment of fecal incontinence and chronic constipation: a systematic review1 passage
• Integrating multimodal prehabilitation into enhanced recovery after surgery programs (MPhERAS) for elderly patients: a systematic review and meta-analysis of randomized controlled trials and cohort studies1 passage
• Is laparoscopy a reliable alternative to laparotomy in Hartmann's reversal? An updated meta-analysis1 passage
• Is the outpatient management of acute diverticulitis safe and effective? A systematic review and meta-analysis1 passage
• Laparoscopic lavage versus surgical resection for acute diverticulitis with generalised peritonitis: a systematic review and meta-analysis1 passage
• Left colectomy for diverticular disease: systematic review and meta-analysis comparing robotic and laparoscopic resections1 passage
• Limitations of the Goligher classification in randomized trials for hemorrhoidal disease: a qualitative systematic review of selection criteria25 passages
• Liposomal bupivacaine versus conventional anesthetic or placebo for hemorrhoidectomy: a systematic review and meta-analysis1 passage
• Local administration of gentamicin collagen sponge in surgical excision of sacrococcygeal pilonidal sinus disease: a systematic review and meta-analysis of the literature1 passage
• Management of acute uncomplicated diverticulitis without antibiotics: a systematic review, meta-analysis, and meta-regression of predictors of treatment failure1 passage
• Management of patients with rectal prolapse: the 2017 Dutch guidelines1 passage
• Mesh-related complications and recurrence after ventral mesh rectopexy with synthetic versus biologic mesh: a systematic review and meta-analysis1 passage
• Non-excisional techniques for the treatment of intergluteal pilonidal sinus disease: a systematic review1 passage
• Operative blood loss adversely affects short and long-term outcomes after colorectal cancer surgery: results of a systematic review and meta-analysis1 passage
• Outcomes of endoscopic pilonidal sinus treatment (EPSiT): a systematic review1 passage
• Pathogenesis and persistence of cryptoglandular anal fistula: a systematic review1 passage
• Perforated sigmoid diverticulitis: Hartmann's procedure or resection with primary anastomosis-a systematic review and meta-analysis of randomised control trials1 passage
• Peri-operative, oncological and functional outcomes of robotic versus transanal total mesorectal excision in patients with rectal cancer: A systematic review and meta-analysis1 passage
• Preoperative anorectal manometry as a predictor of function after ileal pouch anal anastomosis: a systematic review and meta-analysis1 passage
• Prophylactic mesh to prevent parastomal hernia: a meta-analysis of randomized controlled studies1 passage
• Quality of life following ileostomy takedown: single-centre, retrospective clinical trial-does closure time matter?1 passage
• Sclerotherapy for hemorrhoidal disease: systematic review and meta-analysis1 passage
• Short-term efficacy and safety of three novel sphincter-sparing techniques for anal fistulae: a systematic review1 passage
• Short-term outcomes of radical excision vs. phenolisation of the sinus tract in primary sacrococcygeal pilonidal sinus disease: a randomized-controlled trial1 passage
• Simple fistula-in-ano: is it all simple? A systematic review1 passage
• Single-stapled versus non-single-stapled colorectal anastomosis in minimally invasive anterior resections: a systematic review and meta-analysis1 passage
• Starting position during colonoscopy: a systematic review and meta-analysis of randomized controlled trials1 passage
• Stepped-wedge randomized controlled trial of laparoscopic ventral mesh rectopexy in adults with chronic constipation1 passage
• Systematic literature review and meta-analysis of surgical treatment of complete rectal prolapse in male patients1 passage
• Systematic review and meta-analysis comparing primary resection and anastomosis versus Hartmann's procedure for the management of acute perforated diverticulitis with generalised peritonitis1 passage
• Systematic review and meta-analysis of the efficacy and safety of stem cell treatment of anal fistulas1 passage
• Systematic review: The management of unhealed wounds and persistent perineal sinuses following proctectomy in inflammatory bowel disease1 passage
• The effect of hair removal after surgery for sacrococcygeal pilonidal sinus disease: a systematic review of the literature1 passage
• The impact of preoperative stoma education on postoperative outcomes for patients with new stomas after colorectal surgery: a systematic review and meta-analysis1 passage
• The impact of the number of stapler firings on anastomotic leakage in minimally invasive rectal surgery: risk factor or technical marker of complexity? A systematic review, meta‑analysis, and metaregression1 passage
• The role of artificial intelligence in adenoma detection during colonoscopy: a systematic review and meta-analysis of randomized controlled trials-Artificial intelligence and adenoma detection1 passage
• The role of the Rafaelo procedure in the management of hemorrhoidal disease: a systematic review and meta-analysis1 passage
• The role of tibial nerve stimulation for enhanced postoperative recovery after colorectal surgery: a double-blind, parallel-group, randomized controlled trial1 passage
• The use of self-expanding metallic stents in the management of benign colonic obstruction: a systematic review and meta-analysis1 passage
• The value of honey dressings in pilonidal cyst healing: a prospective randomized single-center trial1 passage
• Transanal hemorrhoidal dearterialization with mucopexy versus open hemorrhoidectomy in the treatment of hemorrhoids: a meta-analysis of randomized control trials1 passage
• Updated evidence of the effectiveness and safety of transanal drainage tube for the prevention of anastomotic leakage after rectal low anterior resection: a systematic review and meta-analysis1 passage
• Video-assisted anal fistula treatment for complex anorectal fistulas in adults: a systematic review and meta-analysis1 passage