Advertise on podcast: Colorectal Surgery Review

The newly published 2025 ASCRS guidelines for appendiceal neoplasms represent a total departure from traditional surgical dogma, revealing a 16% risk of concealed malignancy in patients presenting with periappendiceal abscesses. This mandates strict oncologic follow-up after initial antibiotic therapy and percutaneous drainage. Beyond the appendix, this episode explores the etiology, staging, and treatment algorithms for anal squamous cell carcinoma. Driven by HPV (specifically serotypes 16 and 18) within the anal transitional zone (ATZ), anal cancer requires a distinct management approach far different from colorectal adenocarcinoma.

Welcome to Colorectal Surgery Review. In this episode, we deliver a high-yield clinical breakdown of the American Society of Colon and Rectal Surgeons (ASCRS) Clinical Practice Guidelines for the Management of Colon Cancer. Designed for practicing colon and rectal surgeons, surgical oncologists, general surgeons, and senior trainees preparing for board certification or recertification exams, this deep dive translates complex trial data, molecular insights, and guideline recommendations into actionable clinical decision-making.

Join us for an in-depth clinical review of the 2022 American Society of Colon and Rectal Surgeons (ASCRS) Clinical Practice Guidelines for the Management of Anorectal Abscess, Fistula-in-Ano, and Rectovaginal Fistula. In this episode, we break down the latest evidence-based algorithms, anatomical pearls, surgical techniques, and clinical pitfalls needed for surgical practice and board exam preparation.

Join us for a comprehensive clinical review of the American Society of Colon and Rectal Surgeons (ASCRS) Clinical Practice Guidelines for the Management of Anal Fissures. In this episode, we move beyond basic definitions to examine the vascular mechanics, randomized trial data, and surgical algorithms needed to break the cycle of internal sphincter hypertonia and ischemia. Whether you are updating your clinical practice or prepping for board exams, this evidence-based review delivers high-yield insights.

A clinical deep dive into the 2022 and 2023 ASCRS and SAGES guidelines for Enhanced Recovery After Surgery (ERAS). We cover carbohydrate loading, bowel prep, SSI bundles, fluid management, the NSAID leak debate, and early discharge. Join us for an evidence-based clinical review of the 2022 and 2023 American Society of Colon and Rectal Surgeons (ASCRS) and Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) Clinical Practice Guidelines for Enhanced Recovery After Surgery (ERAS). In this episode, we move past basic ERAS concepts to explore the precise physiological mechanisms, statistical realities, and trial data driving modern perioperative care. Whether you are updating hospital protocols or prepping for your board exams, this review delivers the high-yield details you need.

Join us for a detailed clinical dissection of the updated American Society of Colon and Rectal Surgeons (ASCRS) and Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) Clinical Practice Guidelines for Enhanced Recovery After Surgery (ERAS). In this episode, we move past basic ERAS concepts to explore the precise physiological mechanisms, statistical realities, and trial data behind modern perioperative pathways. Whether you are updating hospital protocols, optimizing patient pathways, or prepping for recertification and board exams, this review delivers the evidence-based details you need. Preoperative Optimization & Stoma Education: Implementing structured ileostomies pathways to prevent dehydration and AKI—reducing readmission rates from 15.5% down to 0%. Fasting & Carbohydrate Loading: Ditching the "NPO after midnight" rule for clear liquids up to 2 hours pre-induction. Why complex carbohydrates (maltodextrin) prevent post-op insulin resistance and why simple sugars are avoided. Pre-op Nutrition vs. Immunonutrition: Weight-based protein supplementation (1.2–1.5 g/kg/day) for malnourished patients and why commercial immunonutrition shakes remain controversial in non-industry-funded trials. Bowel Prep & C. diff Reduction: The strong Grade 1B mandate for combining Mechanical Bowel Preparation (MBP) with oral antibiotics (Neomycin + Metronidazole/Erythromycin) to decimate mucosal biofilms and cut SSIs in half. Intraoperative SSI Bundles: Swiss-cheese risk management, including dedicated wound-closure trays, mandatory glove/gown changes before facial closure, normothermia, and tight glycemic control. Analgesia & The NSAID Leak Debate: Why Diclofenac dramatically increases anastomotic leak rates due to enterohepatic circulation, while Ketorolac and COX-2 inhibitors remain safe. Plus, why routine thoracic epidurals and gabapentinoids are falling out of favor in minimally invasive cases. Fluid Management & Hemodynamics: Moving away from "bone-dry" fluid restriction to preserve the endothelial glycocalyx. The chemistry of why Normal Saline causes hyperchloremic metabolic acidosis and renal vasoconstriction, and how Goal-Directed Hemodynamic Therapy (GDHT) prevents fluid overload. Hardware & Post-Op Care: Evidence against routine NG tubes and pelvic drains, accepting post-op oliguria down to 0.2 mL/kg/hr without fluid boluses, and accelerating bowel return with sham feeding (gum) and coffee. Early Discharge Pathways: Criteria from the RECOVER MI trial allowing selected low-risk patients to safely go home on Post-Op Day 1 before the return of bowel function.

Join us for a detailed clinical breakdown of the 2018 American Society of Colon and Rectal Surgeons (ASCRS) Clinical Practice Guidelines for Anal Squamous Cell Cancer. In this episode, we dive into the virology, staging nuances, landmark trial data, and treatment paradigms every practicing surgeon, oncologist, and board candidate needs to master. Key Topics Covered in This Episode: Etiology & Risk Factors: The oncogenic role of HPV (serotypes 16 & 18), the field defect within the anal transitional zone (ATZ), and independent risk factors such as cigarette smoking and immunosuppression. Anatomic Classification: Distinguishing anal canal vs. perianal lesions using gluteal distraction and the strict 5 cm distance rule. Pathology & Biomarkers: Implementing the LAST two-tiered terminology (LSIL vs. HSIL), why the term "Bowen's disease" is obsolete, and using p16 and Ki-67 biomarkers to guide diagnosis. Screening & High-Resolution Anoscopy (HRA): Addressing the low specificity of anal cytology swabs, the mechanism of aceto-white staining during HRA, and when expectant management is acceptable. HPV Vaccination Rule: Why secondary HPV vaccination is not recommended for treating existing dysplasia (Grade 2A). Staging Pitfalls: Why anal SCC staging relies on maximum diameter rather than depth of wall invasion, and why sphincter muscle invasion does not upgrade a tumor to T4. Definitive Chemoradiation (The Nigro Protocol): The shift away from primary APRs, radiation dosing limits, and trial evidence (RTOG 9811 & ACT II) proving why 5-FU + Mitomycin C remains superior to Cisplatin. Surgical Exceptions & Survivorship: Narrow criteria for wide local excision alongside essential pre-treatment counseling for fertility preservation and post-radiation vaginal stenosis.

Join us for a comprehensive clinical review of the 2015 American Society of Colon and Rectal Surgeons (ASCRS) Clinical Practice Guidelines for Ambulatory Anorectal Surgery. In this episode, we break down the most relevant surgical directives and statistical realities to help you optimize patient care from the moment of selection to the final post-discharge follow-up. If you are looking to update your clinical practice, reduce unnecessary testing, or prep for your board exams, this evidence-based dissection will help you streamline your ambulatory cases. Key Topics Covered in This Episode: Patient Selection & Pre-op Testing: Why routine preoperative testing (like CBCs and ECGs) is discouraged for healthy patients, and how to properly stratify risk using ASA physical status classifications. Anesthesia & Positioning: The clinical benefits of local anesthesia with IV sedation, and the specific physiological contraindications (such as obesity, late pregnancy, and severe COPD) for the prone jackknife position. VTE Prophylaxis: Unpacking the extremely low baseline risk (0.15%) of venous thromboembolism in anorectal procedures and identifying when mechanical prophylaxis is genuinely warranted. Pain Management: A look into multimodal pain control strategies, the prolonged efficacy of Liposomal Bupivacaine, the debate over topical GTN ointments for sphincter spasms, and why routine systemic antibiotics are actively discouraged. Postoperative Urinary Retention (POUR): The neurological mechanics behind urinary retention following pelvic surgery and the crucial importance of perioperative IV fluid restriction (under 1 liter). Discharge Protocols: Navigating standardized discharge criteria (like the Modified Aldrete or PADSS scores) to avoid premature discharges and dangerous post-op complications.

Reviews the Broden and Snellman theory of rectal prolapse as a progressive internal intussusception. The episode clarifies the misnomer of solitary rectal ulcer syndrome—where true ulcers only appear in 23% of cases—and outlines its precise operative indications. Crucially, it highlights registry data showing that perineal approaches (Altemeier, Delorme) carry a four-times greater relative mortality risk in frail elderly patients compared to minimally invasive abdominal rectopexy, upending decades of surgical dogma.

Unpacks Obstructive Defecation Syndrome (ODS), starting with the absolute necessity of pelvic floor biofeedback over surgical intervention for dyssynergic defecation. It details the strict millimeter-based grading systems for structural defects like rectoceles and enteroceles. The operative discussion highlights the abandonment of the STARR procedure due to a 40% long-term recurrence rate, instead favoring laparoscopic ventral mesh rectopexy for internal prolapse and transvaginal native tissue repairs for rectoceles.

Explores the diagnostic and surgical algorithms for chronic refractory constipation. It clearly differentiates slow transit constipation (colonic inertia) from IBS-C utilizing the 5-day radiopaque marker study rule (retention of >20% markers). The episode breaks down the latest pharmacotherapy, including secretagogues and PAMORAs for opioid-induced constipation, and thoroughly dissects the significant morbidity, incontinence risks, and patient selection criteria for a total abdominal colectomy with ileorectal anastomosis (TAC-IRA).

A deep dive into the physiological and mechanical evaluation of pelvic floor disorders. The episode examines the hardware evolution of manometry from water-perfused catheters to high-resolution systems, and the standardization of dyssynergic defecation phenotypes via the London Protocol. It also reviews the diagnostic utility of the balloon expulsion test and compares the true physiological advantages of sitting fluoroscopic defecography against the anatomical clarity of supine MRI defecography.

Focuses on distinguishing and managing Irritable Bowel Syndrome using the rigid Rome IV criteria. It issues a stark warning against operating on functional visceral hypersensitivity, detailing how elective resections for symptomatic uncomplicated diverticular disease frequently fail to relieve pain. The episode reviews targeted pharmacotherapy based on IBS subtypes (e.g., eluxadoline for IBS-D and lubiprostone for IBS-C), and addresses pelvic floor pain syndromes like proctalgia fugax, which surprisingly responds to inhaled albuterol.

Tackles the inevitable biomechanical failure of parastomal hernias, which eventually affect nearly all permanent stoma patients. It emphasizes strict preoperative optimization goals, including a BMI under 35, an A1C under 8, and absolute smoking cessation. The discussion covers the mechanical superiority of the Sugarbaker mesh drape geometry over the keyhole technique, and explores advanced retromuscular/TAR (Transversus Abdominis Release) approaches utilizing macroporous uncoated synthetic mesh in contaminated fields.

A comprehensive guide to the physiological and mechanical management of stomas. Key topics include the massive clinical and financial benefits of preoperative WOCN education, and advanced troubleshooting for stoma complications like peristomal pyoderma gangrenosum and bleeding parastomal varices. The episode explores the exact sodium-glucose transporter (SGLT1) mechanics that make WHO oral rehydration solutions essential for high-output stomas, and reviews evolving trial data challenging the traditional 12-week wait period for stoma reversals.