Surg: Anal Fissure: Free MSRA Podcast

🎧 MSRA Podcast: Anal Fissure – Crack the Painful TruthThey might seem minor, but anal fissures cause agony — often described as "passing shards of glass." This episode breaks down the must-know clinical points for the MSRA: causes, symptoms, red flags, and how to manage both acute and chronic cases.🧠 Key Learning Points:✅ Definition:• Small tear in the anal canal lining, usually posterior midline• Acute < 6 weeks, Chronic > 6 weeks• Painful due to rich innervation and internal sphincter spasm✅ Causes & Risk Factors:• Hard stools, chronic constipation, diarrhoea• IBD, anal intercourse, obesity, childbirth, STIs (e.g. HIV, herpes)• Primary = idiopathic• Secondary = IBD, malignancy, infection → atypical location✅ Pathophysiology – The Pain Cycle:• Tear → intense pain → sphincter spasm → ↓ blood flow → poor healing• Cycle continues → chronicity✅ Symptoms – Think PAIN:P = Painful defecation (sharp, burning)A = Anal bleeding (bright red, on tissue or stool surface)I = Itching or irritationN = Noticeable tear (posterior midline, linear split)Other signs: Sentinel pile (chronic), sphincter spasm, post-defecation pain lasting hours🩺 Differential Diagnoses:• Haemorrhoids• Anal abscess or fistula• Proctitis, anal cancer, perianal sepsis• Must rule out other causes, especially with atypical fissure location📊 Epidemiology (UK):• ~11% lifetime incidence• Affects all ages, peak: 20s–40s• Equal in men and women• Acute > chronic (most heal without surgery)🧪 Diagnosis:• Clinical: classic history + inspection• Avoid digital rectal exam in acute phase due to pain• If atypical, refractory, or suspicious → consider anoscopy or flexi-sig💊 Management (Stepwise):1️⃣ Conservative• High-fibre diet, fluids, stool softeners• Avoid straining, sitz baths (warm water soaks)• Topical anaesthetics for pain relief2️⃣ Topical Treatments• GTN ointment 0.2–0.4% (relaxes sphincter, ↑ healing) – watch for headache• Diltiazem 2% or nifedipine (calcium channel blockers)3️⃣ Chronic/Refractory• Botulinum toxin injection to internal sphincter• Lateral internal sphincterotomy = high success (85%) ▫ Gold standard for chronic fissures ▫ Counsel re: small risk of incontinence📩 Refer if:• No healing in 6–8 weeks• Recurrent, atypical, elderly, or paediatric cases• Suspicion of secondary cause (e.g. IBD, malignancy)📈 Prognosis:• Acute: most heal with lifestyle + topical treatment• Chronic: surgery usually curative• Recurrence possible, especially with ongoing constipation• Good long-term outcomes with proper care⚠️ Complications:• Chronic fissure, anal stenosis (scarring, narrowing)• Abscess, fistula, long-term pain• Post-op incontinence (rare, mild)📚 MSRA Study Resources – Anal Fissure:• 📘 Revision Notes:https://www.passthemsra.com/topic/anal-fissure-revision-notes/• 🧠 Flashcards:https://www.passthemsra.com/topic/anal-fissure-flashcards/• 📂 Accordion Q&A Notes:https://www.passthemsra.com/topic/anal-fissure-accordion-qa-notes/• 🎯 Rapid Quiz:https://www.passthemsra.com/topic/anal-fissure-rapid-quiz/• 🧪 Full Quiz Bank:https://www.passthemsra.com/quizzes/anal-fissure/🌐 More Free Resources:https://www.passthemsra.comhttps://www.freemsra.com💭 Final Thought:Anal fissures may be small, but they pack a punch — in symptoms and in exams. Think posterior midline, sharp pain, and always exclude secondary causes in atypical presentations. Crack this topic, and you’re one step closer to acing your MSRA!#MSRA #AnalFissure #MSRARevision #SurgeryMSRA #PassTheMSRA #MedicalPodcast #FissureManagement #Proctology #MSRAFlashcards #FreeMSRA #GPExamPrep #MedicalEducation