⚕️ FREE MSRA PODCAST – Ascending Cholangitis

🎧 A clear, high-yield breakdown of this acute biliary-tract infection from obstructed ducts – perfect for exam prep and real-life clinicalscenarios.

🧠 Key Learning Points

📌 Definition

•Acute bacterial infection & inflammation of the common bile duct(s) causedby biliary obstruction that allows gut flora to ascend.

📌 Causes & Risk Factors

•Gallstones (commonest)

•Malignancy – cholangiocarcinoma, pancreatic or ampullary tumours

•Benign strictures, primary sclerosing cholangitis

•Post-operative or indwelling biliary stent / previous ERCP

•Choledochal cyst, AIDS cholangiopathy

•Parasitic worms (e.g. liver fluke, roundworm – endemic areas)

Mnemonic – STONE

S Stones TTumour/stricture O Obstruction (cyst,parasite) N ‘No-flow’ afteriNstrumentation (ERCP/stent) E Existingsurgery/scar

📌 Pathophysiology

•Obstruction → stagnant bile → ↑ intraductal pressure

•Enteric Gram-negative/anaerobic bacteria ascend from duodenum

•Inflammatory cascade & endotoxaemia → sepsis ± multiorgan failure

📌 Symptoms

•Charcot’s triad: Fever – RUQ pain – Jaundice(FRJ)

•Rigors/chills, nausea ± vomiting

•Reynolds’ pentad (severe): FRJ + Hypotension +Altered mental status

Mnemonic – FRJ ± Low BP, Confusion

📌 Differential Diagnosis

•Acute cholecystitis or biliary colic

•Acute pancreatitis

•Viral / drug-induced hepatitis

•Peptic-ulcer perforation, appendicitis, diverticulitis

•Pyelonephritis, sepsis of other source

📌 Diagnosis

•Bloods: ↑ WCC/CRP, cholestatic LFTs(↑ALP, GGT, conjugated bilirubin)

•Imaging:

–USS first-line (duct dilatation, stones)

–MRCP for detailed anatomy

–CT if USS inconclusive / suspect tumour

–ERCP: diagnostic and therapeutic

•Tokyo Guidelines: Charcot’s triad or (≥2 clinical features + raised inflammatorymarkers + imaging evidence) = definite AC.

Quick memory tip: “Charcot’s FRJ? ➜ ERCP STAT”.

📌 Management

•ABCDE & Sepsis 6 – IV fluids, oxygen,lactate, cultures

•Broad-spectrum IV antibiotics (cover Gram-ve + anaerobes, e.g.piperacillin-tazobactam ± metronidazole)

•Urgent biliary drainage

–ERCP within ≤ 24 h if severe (Reynolds /organ dysfunction)

–PTBD / EUS-guided or surgery if ERCP unavailable/fails

•ICU/HDU for grade III sepsis or shock

•Definitive laparoscopic cholecystectomyonce recovered if gallstones were the cause

•UK/NICE focus: early senior review, NEWS2 monitoring, timely source control

📌 Complications

•Septic shock & multiorgan failure

•Liver abscess

•Acute pancreatitis

•Recurrent cholangitis → secondary biliary cirrhosis

•Procedure-related: post-ERCP pancreatitis, bleeding, perforation

📌 Prognosis

Mortality< 10 % with prompt antibiotics + drainage; rises steeply with delayedtreatment, advanced age, malignancy or organ failure at presentation.

📎 More MSRA Resources for AscendingCholangitis

📝 Revision Notes: https://www.passthemsra.com/topic/ascending-cholangitis-revision-notes/

🧠 Flashcards: https://www.passthemsra.com/topic/ascending-cholangitis-flashcards/

💬 Accordion Q&A Notes: https://www.passthemsra.com/topic/ascending-cholangitis-accordion-qa-notes/

🚀 Rapid Quiz: https://www.passthemsra.com/topic/ascending-cholangitis-rapid-quiz/

🎓 Full Course: https://www.passthemsra.com/courses/gastroenterology-for-the-msra/

Hashtags

#MSRA#MSRARevision #MSRATextbook #MSRAQuiz #MSRAQuestionBank #MSRAFlashcards#MSRAQ&ANotes #MSRAAccordions #MultiSpecialityRecruitmentAssessment#MSRAOnlineRevision #MSRARevisionWebsite #AscendingCholangitis

🎧 FREE MSRA PODCAST – Achalasia:Swallowing Troubles Unlocked

Inthis MSRA podcast episode, we take a deep dive into Achalasia, a rare but important oesophageal motility disorder.We'll help you recognise red flag symptoms,understand how it’s diagnosed, andremember key treatment options like Heller’s myotomy and POEM — all based on UK NICEguidance. If you're preparing for the Gastro MSRA section, this one'sessential.

🧠 Key Learning Points

📌 Definition

•Achalasia is a primary oesophageal motilitydisorder characterised by:

 –Failure of the lower oesophageal sphincter (LOS)to relax, and

 –Loss of peristalsis in the distaloesophagus.

•Result: Functional obstruction, notstructural.

📌 Pathophysiology

•Due to degeneration of the myenteric(Auerbach’s) plexus.

•Loss of inhibitory neurotransmitters (e.g. nitricoxide, VIP) leads to sustained LOScontraction.

•Balance shifts towards excitatoryneurotransmitters (e.g. acetylcholine).

•Rare causes: Chagas disease, secondaryachalasia from malignancy.

📌 Mnemonics

•D-R-C-A-R-E-W = Symptoms of achalasia:

 –Dysphagia (solids + liquids)

 –Regurgitation of undigested food

 –Chest pain

 –Aspiration (nocturnal cough, pneumonia)

 –Reflux symptoms

 –Early satiety / emptying difficulty

 –Weight loss

📌 Epidemiology

•Rare: ~1 in 100,000 prevalence

•Equal in males and females

•Peak onset: 25–60 years

📌 Diagnosis

1. Gold standard:
    – Oesophageal manometry
     • Raised LOS pressure
     • Incomplete relaxation
     • Absent peristalsis
2. Barium swallow:
    – Classic “bird’s beak” sign at gastro-oesophageal junction
    – Dilated, tortuous oesophagus with smooth tapering
3. Endoscopy:
    – Rules out malignancy (pseudoachalasia)
    – May show retained food/fluid

📌 Management Options

•M-B-S-B mnemonic:

 –Medical: Nitrates or CCBs (limited,short-term use)

 –Balloon dilation: Pneumatic dilatation ofLOS (risk: perforation)

 –Surgery:

  •Laparoscopic Heller’s myotomy (often withfundoplication)

  •POEM: Peroral endoscopic myotomy(minimally invasive)

 –Botox injections: For frail patients,short-lived benefit (6–12 months)

📌 Complications

•Aspiration pneumonia

•Weight loss/malnutrition

•Oesophageal cancer – especially squamous cell carcinoma

 –Risk up to 15x higher

•Psychological impact (e.g. depression)

•Recurrence or reflux post-treatment

📌 Key Differentials

•Oesophageal cancer (pseudoachalasia)

•Chagas disease

•Benign strictures

•Severe GORD

•Scleroderma (involves LOS hypotonia)

•Oesophageal spasm

📌 Summary Recap

•Achalasia = functional obstruction due toLOS dysfunction + loss of peristalsis

•Think dysphagia to solids and liquids,regurgitation, chest pain

•Investigate with barium swallow, endoscopy, and confirm with manometry

•Manage with dilation, surgery, Botoxdepending on the patient

•Monitor long-term for cancer risk and recurrence

📎 More MSRA Resources for Achalasia

📝 Revision Notes:

https://www.passthemsra.com/topic/achalasia-revision-notes/

🧠 Flashcards:

https://www.passthemsra.com/topic/achalasia-flashcards/

💬 Accordion Q&A Notes:

https://www.passthemsra.com/topic/achalasia-accordion-qa-notes/

🚀 Rapid Quiz:

https://www.passthemsra.com/topic/achalasia-rapid-quiz/

🎓 Full Course:

https://www.passthemsra.com/courses/gastroenterology-for-the-msra/

Hashtags

#MSRA#MSRARevision #AchalasiaMSRA #GastroMSRA #Manometry #HellerMyotomy #BirdsBeak#MSRAFlashcards #MSRAQuiz #MedicalEducation

⚕️FREE MSRA PODCAST –Ischaemic Colitis

🎧 A clear, high-yield breakdown of this vascular emergency affecting thecolon – perfect for exam prep andreal-life clinical scenarios.

🧠Key Learning Points

📌Definition

• Ischaemic Colitisis inflammation and injury of the colondue to reduced blood flow, most commonlyaffecting the splenic flexure and rectosigmoid junction — the classic watershed areas.

📌Causes & RiskFactors

• Systemic hypotension (e.g. shock, dehydration)

• Atherosclerosis and arterial thromboembolism

• Vasculitis (e.g. lupus, PAN)

• Low cardiac output and arrhythmias

• Vasoconstrictive drugs (e.g. digitalis,cocaine)

• Recent abdominal surgery

• Hypercoagulable states (e.g. protein C/Sdeficiency, APC resistance)

• Age >60, smoking,and cardiovascular disease

Mnemonic: SHOVeL

Shock, Hypotension, Occlusion, Vasculitis, Elderly,Lifestyle factors

📌Pathophysiology

• Reduced blood flow→ colonic ischaemia, especially inwatershed zones

• Leads to hypoxia, triggering inflammation and mucosal damage

• May extend tofull-thickness necrosis if severe

📌Symptoms

• Sudden crampy abdominal pain (typically leftiliac fossa)

• Bloody diarrhoea or rectal bleeding

• Nausea, vomiting,and tender abdomen

• In severe cases → signs of peritonitis, shock, or fever

Mnemonic: Pain,Poo, and Blood

📌DifferentialDiagnosis

• Diverticulitis

• Infective colitis (e.g. dysentery)

• Inflammatory bowel disease (Crohn’s, UC)

• Appendicitis (especially atypicalpresentations)

• Bowel perforation, pancreatitis, peritonitis

📌Diagnosis

• Bloods: FBC, CRP/ESR, U&Es, lactate (mayshow acidosis)

• Colonoscopy: Segmental changes, bluish swollenmucosa, sparing of rectum

• CT Abdomen with contrast: Bowel wallthickening, pericolonic fat stranding

• CT Angiography: Assesses for vascular occlusion

• Barium enema (less common): Thumbprinting due to submucosal oedema

📌Management

1. Supportive Care

• Bowel rest (NPO),IV fluids, electrolyte correction

• Good analgesia

1. Medical Management

• Broad-spectrum antibiotics (e.g. co-amoxiclav)to prevent bacterial translocation

1. Surgical Intervention (if)

• No improvementafter 24–48 hours

• Worsening signs —peritonitis, increasing pain, fever

• Suspected infarction or perforation

• Emergency laparotomy if bowel necrosis issuspected

📌Complications

• Bowel infarction and necrosis

• Perforation leading to peritonitis

• Stricture formation and chronic colitis

• Sepsis and systemic complications

📌Prognosis

• Good in mild cases— complete recovery with supportive care

• Poorer prognosisin elderly, extensive disease, or if emergencysurgery required

• Overall mortality rate ~22% in severe cases

📎More MSRA Resourcesfor Ischaemic Colitis

📝 Revision Notes:

https://www.passthemsra.com/topic/ischaemic-colitis-revision-notes/

🧠 Flashcards:

https://www.passthemsra.com/topic/ischaemic-colitis-flashcards/

💬 Accordion Q&A Notes:

https://www.passthemsra.com/topic/ischaemic-colitis-accordion-qa-notes/

🚀 Rapid Quiz:

https://www.passthemsra.com/topic/ischaemic-colitis-rapid-quiz/

🎓 Full Course:

https://www.passthemsra.com/courses/gastroenterology-for-the-msra/

#MSRA #MSRARevision#MSRATextbook #MSRAQuiz #MSRAQuestionBank #MSRAFlashcards #MSRAQandANotes#MSRAAccordions #MultiSpecialityRecruitmentAssessment #MSRAOnlineRevision#MSRARevisionWebsite #IschaemicColitis

⚕️ FREE MSRA PODCAST – Bile Acid Malabsorption

🎧 A clear, high-yield breakdown of this chronic diarrhoea-causing malabsorption disorder – perfect for exam prep and real-life clinicalscenarios.

🧠 Key Learning Points

📌 Definition

•Bile Acid Malabsorption (BAM) occurs when the small intestine fails to reabsorbbile acids efficiently, causing excess bile acids to reach the colon, leadingto chronic watery diarrhoea.

📌 Causes & Risk Factors

•Type 1 (Secondary): Ileal disease (e.g.Crohn’s) or surgical resection

•Type 2 (Primary): Idiopathic – unknowncause

•Type 3 (Secondary): Associated withcoeliac disease, SIBO, cholecystectomy, pancreatic insufficiency

•Type 4: Excess bile acid synthesis (e.g.triggered by metformin)

•Other Risks: GI surgery, IBD, radiationtherapy, bile acid sequestrants paradoxically unmasking BAM

🧠 Mnemonic: “I SEE BAM” – Ileal resection, SIBO, Enzyme deficiency(pancreas), Excess bile, Bilesequestrants, Autoimmune (e.g. coeliac), Metformin

📌 Pathophysiology

•Failed ileal reabsorption → excess bile acids in colon

•Bile acids cause osmotic diarrhoea, stimulate motility, and promote fluidsecretion – triple whammy effect

📌 Symptoms

•Chronic watery diarrhoea

•Urgency and bloating

•Steatorrhoea in severe cases

•Fat-soluble vitamin deficiencies (A, D, E, K)

🧠 Clue: High stool volume + diarrhoea mimicking IBS =think BAM

📌 Differential Diagnosis

•IBS-D

•Coeliac disease

•Inflammatory bowel disease

•SIBO

•Chronic pancreatitis

•Microscopic colitis

•Food intolerances (e.g. lactose)

📌 Diagnosis

•SeHCAT scan – preferred test (<10–15%retention = abnormal)

•Faecal bile acid measurement

•Serum C4 levels (increased = bile acidoverproduction)

🧠 Memory Tip: “See the CAT to confirm BAM”(SeHCAT)

📌 Management

•Dietary: Low-fat diet to reduce bile acidrelease

•Medication:

• Bile acid binders: Cholestyramine, Colestipol, Colesevelam
• Treat underlying causes (e.g. Crohn’s, SIBO)
  • Space doses apart from other medications to avoid reduced drug absorption
  • Monitor for fat-soluble vitamin deficiency with long-term use

📌 Complications

•Malabsorption of fats and vitamins

•Dehydration and weight loss

•Electrolyte imbalance

•Significant reduction in quality of life

📌 Prognosis

•BAM is chronic but usually manageable

•Many respond well to treatment, especially with bile acid sequestrants

•Long-term resolution is possible in some

📎 More MSRA Resources for Bile AcidMalabsorption

📝 Revision Notes: https://www.passthemsra.com/topic/bile-acid-malabsorption-revision-notes/

🧠 Flashcards: https://www.passthemsra.com/topic/bile-acid-malabsorption-flashcards/

💬 Accordion Q&A Notes: https://www.passthemsra.com/topic/bile-acid-malabsorption-accordion-qa-notes/

🚀 Rapid Quiz: https://www.passthemsra.com/topic/bile-acid-malabsorption-rapid-quiz/

🎓 Full Course: https://www.passthemsra.com/courses/gastroenterology-for-the-msra/

Hashtags

#MSRA#MSRARevision #MSRATextbook #MSRAQuiz #MSRAQuestionBank #MSRAFlashcards#MSRAQ&ANotes #MSRAAccordions #MultiSpecialityRecruitmentAssessment#MSRAOnlineRevision #MSRARevisionWebsite #BileAcidMalabsorption

⚕️ FREE MSRA PODCAST – Barrett's Oesophagus

🎧 A clear, high-yield breakdown of this reflux-associated precancerous oesophageal condition – perfect for exam prep and real-life clinicalscenarios.

🧠 Key Learning Points

📌 Definition

•Barrett’s Oesophagus is a condition in which the normal squamous lining of thedistal oesophagus is replaced with columnar epithelium containing goblet cells– known as intestinal metaplasia. This change increases the risk of oesophageal adenocarcinoma.

📌 Causes & Risk Factors

•Chronic GORD (gastro-oesophageal reflux disease) – primary driver

•Obesity (especially central)

•Male gender

•Caucasian ethnicity

•Age >50

•Smoking

•Hiatus hernia, oesophagitis, oesophageal strictures

🧠 Mnemonic: Go RACE – GORD, Obesity, Race/gender/age/family history, Age >50, Cigarettes, Esophagealpathology

📌 Pathophysiology

•Chronic acid and bile reflux → persistent mucosal injury → replacement ofsquamous cells with acid-resistant columnar epithelium (intestinal metaplasia)

•Goblet cells hallmark histological feature

•Protective adaptation that unfortunately carries a risk of dysplasia and cancer

📌 Symptoms

•Often asymptomatic

•If present: typical GORD symptoms –heartburn, regurgitation, chest discomfort, dysphagia

•No specific symptoms attributable solely to Barrett’s itself

📌 Differential Diagnosis

•GORD

•Erosive oesophagitis

•Peptic strictures

•Eosinophilic oesophagitis

•Oesophageal carcinoma

📌 Diagnosis

•Gold standard: Upper GI endoscopy withbiopsy

•Histology confirms intestinal metaplasia withgoblet cells

•Surveillance protocols based on length of affected segment and presence/gradeof dysplasia

🧠 Memory Tip: “Barrett’s = Biopsy for Goblets”

📌 Management

•Lifestyle: Smoking cessation, weightloss, avoid triggers, elevate bed head

•Medical: Long-term PPI therapy

•Surveillance:

• Short segment Barrett’s (confirmed): Endoscopy every 3–5 years
• Long segment without dysplasia: Every 2–3 years
• Low-grade dysplasia: Consider radiofrequency ablation (RFA)
• High-grade dysplasia: Endoscopic mucosal resection (EMR) ± RFA
  • Surgery (e.g. fundoplication) rarely considered – more for severe reflux than cancer prevention

📌 Complications

•Progression to oesophageal adenocarcinoma

•Dysplasia (low- and high-grade)

•Strictures

•Bleeding or ulceration

📌 Prognosis

•Most patients with Barrett’s do not developcancer

•Lifetime cancer risk ~3% (women) to ~5% (men)

•Risk increases with long segment, dysplasia, or uncontrolled reflux

•Early detection and endoscopic treatment of dysplasia = excellent outcomes

📎 More MSRA Resources for Barrett'sOesophagus

📝 Revision Notes: https://www.passthemsra.com/topic/barretts-oesophagus-revision-notes/

🧠 Flashcards: https://www.passthemsra.com/topic/barretts-oesophagus-flashcards/

💬 Accordion Q&A Notes: https://www.passthemsra.com/topic/barretts-oesophagus-accordion-qa-notes/

🚀 Rapid Quiz: https://www.passthemsra.com/topic/barretts-oesophagus-rapid-quiz/

🎓 Full Course: https://www.passthemsra.com/courses/gastroenterology-for-the-msra/

Hashtags

#MSRA#MSRARevision #MSRATextbook #MSRAQuiz #MSRAQuestionBank #MSRAFlashcards#MSRAQ&ANotes #MSRAAccordions #MultiSpecialityRecruitmentAssessment#MSRAOnlineRevision #MSRARevisionWebsite #BarrettsOesophagus

⚕️ FREE MSRA PODCAST – AutoimmuneHepatitis

🎧 A clear, high-yield breakdown of this chronic immune-mediated liver condition – perfect for exam prep and real-life clinicalscenarios.

🧠 Key Learning Points

📌 Definition

•Autoimmune Hepatitis (AIH) is a chronicinflammatory liver disease caused by the body’s immune system mistakenly attacking hepatocytes, leading toliver damage.

📌 Causes & Risk Factors

•Likely multifactorial: genetic predisposition +immune dysregulation + environmental triggers

•HLA types: HLA-B8, HLA-DR3

•Viral infections or drug exposures may trigger onset

•More common in females and those with other autoimmune diseases (e.g. SLE,thyroiditis, coeliac)

Mnemonic: “GENIE”– Genetics, Environment, Non-specific triggers, Immune dysregulation, Estrogen(female bias)

📌 Pathophysiology

•Immune system produces autoantibodiestargeting liver cells

•Ongoing inflammation → hepatocyte destruction → fibrosisand cirrhosis

•Autoantibodies include ANA, ASMA, anti-LKM1,anti-SLA

📌 Symptoms

•Often non-specific or asymptomatic

•Classic signs: Fatigue, jaundice, RUQ pain,hepatomegaly

•Systemic features: Arthralgia, rash,amenorrhoea, fever

Mnemonic: “JAUNDICE”– Jaundice, AST/ALT raised, Unwell, No clear trigger, Deficient periods, Itchyskin, Cirrhosis risk, Extra symptoms

📌 Differential Diagnosis

•Viral hepatitis (B, C)

•Drug-induced liver injury

•Primary biliary cholangitis (PBC)

•Primary sclerosing cholangitis (PSC)

•Alcoholic hepatitis

•Wilson’s disease / haemochromatosis

📌 Diagnosis

•Liver function tests: raised ALT/AST,often disproportionately high

•High IgG (polyclonalhypergammaglobulinaemia)

•Autoantibodies: ANA, ASMA, anti-LKM1, anti-SLA

•Liver biopsy: shows interface hepatitis, piecemeal/bridging necrosis

•Imaging to rule out structural liver causes

Quick Tip: ANA + ASMA = think Type 1 AIH; Anti-LKM1 = Type 2 AIH (kids); Anti-SLA = Type3 AIH

📌 Management

•Induction: Prednisolone (oralcorticosteroid)

•Maintenance: Azathioprine (ormycophenolate if intolerant)

•Monitor: LFTs, autoantibodies, IgG, FBC,bone density, glucose

•Vaccinate before immunosuppression (HepA/B)

•DEXA and eye checks due to steroid risk

•Liver transplant in severe ornon-responsive cases

•Ongoing monitoring for relapse and treatment side effects

📌 Complications

•Cirrhosis and liver failure

•Hepatocellular carcinoma (HCC) – esp. incirrhosis

•Portal hypertension and varices

•Immunosuppression-related issues (e.g. infections, bone loss, diabetes)

📌 Prognosis

•Favourable with early diagnosis andconsistent immunosuppressive treatment

•Without treatment, high risk of progression to cirrhosis or death

•Lifelong condition requiring long-termmonitoring and therapy

📎 More MSRA Resources forAutoimmune Hepatitis

📝 Revision Notes: https://www.passthemsra.com/topic/autoimmune-hepatitis-revision-notes/

🧠 Flashcards: https://www.passthemsra.com/topic/autoimmune-hepatitis-flashcards/

💬 Accordion Q&A Notes: https://www.passthemsra.com/topic/autoimmune-hepatitis-accordion-qa-notes/

🚀 Rapid Quiz: https://www.passthemsra.com/topic/autoimmune-hepatitis-rapid-quiz/

🎓 Full Course: https://www.passthemsra.com/courses/gastroenterology-for-the-msra/

Hashtags

#MSRA#MSRARevision #MSRATextbook #MSRAQuiz #MSRAQuestionBank #MSRAFlashcards#MSRAQandANotes #MSRAAccordions #MultiSpecialtyRecruitmentAssessment#MSRAOnlineRevision #MSRARevisionWebsite #AutoimmuneHepatitis

⚕️ FREE MSRA PODCAST – Angiodysplasia

🎧 A clear, high-yield breakdown of this vascular cause of GI bleeding in the elderly – perfect for exam prep and real-life clinicalscenarios.

🧠 Key Learning Points

📌 Definition

•Vascular malformation in the GI tract, involving fragile, dilated, and tortuousvessels – often in the colon – that can cause intermittent bleeding.

📌 Causes & Risk Factors

•Advanced age

•Chronic kidney disease

•Von Willebrand disease

•Aortic stenosis (possible association)

🧠 Mnemonic: “VWF” – VulnerableVessels Fallible

📌 Pathophysiology

•Dilated and tortuous vessels in the mucosa and submucosa

•Lesions become fragile and prone to bleeding

•Commonly due to degenerative vascular changes with age

🧠 Think: “Twisted hoses leaking”

📌 Symptoms

•Intermittent painless GI bleeding

•Iron-deficiency anaemia

•Haematochezia (bright red blood perrectum)

•Melaena (if upper GI involvement)

🧠 Mnemonic: “BAD vessels” –Bleeding from Abnormal, Dilated vessels

📌 Differential Diagnosis

•Diverticulosis

•Inflammatory bowel disease (Crohn’s/UC)

•Colorectal cancer

•Arteriovenous malformations (AVMs)

🧠 Mnemonic: “DECA” –Diverticulosis, IBD, Cancer, AVMs

📌 Diagnosis

•Colonoscopy (first-line for lower GIbleeding)

•OGD (if upper GI bleed suspected)

•Mesenteric angiography for severe orunclear bleeding

🧠 Mnemonic: “See the Source – AngryAngiography”

📌 Management

•Endoscopic therapy – argon plasmacoagulation, thermal coagulation

•Medications – tranexamic acid(antifibrinolytic), oestrogens (less common)

•Surgery – bowel resection in refractoryor severe cases

🧠 Mnemonic: “Seal, Cut, Stop,Hormones”

📌 Complications

•Recurrent bleeding

•Chronic anaemia

•Rarely, massive GI haemorrhage

📌 Prognosis

•Generally good with treatment

•Risk of recurrence – long-term management may be required

📎 More MSRA Resources forAngiodysplasia

📝 Revision Notes: https://www.passthemsra.com/topic/angiodysplasia-revision-notes/

🧠 Flashcards: https://www.passthemsra.com/topic/angiodysplasia-flashcards/

💬 Accordion Q&A Notes: https://www.passthemsra.com/topic/angiodysplasia-accordion-qa-notes/

🚀 Rapid Quiz: https://www.passthemsra.com/topic/angiodysplasia-rapid-quiz/

🎓 Full Course: https://www.passthemsra.com/courses/gastroenterology-for-the-msra/

Hashtags

#MSRA#MSRARevision #MSRATextbook #MSRAQuiz #MSRAQuestionBank #MSRAFlashcards#MSRAQ&ANotes #MSRAAccordions #MultiSpecialityRecruitmentAssessment#MSRAOnlineRevision #MSRARevisionWebsite #Angiodysplasia

⚕️ FREE MSRA PODCAST – Anal Fissures

🎧 A clear, high-yield breakdown of this painful anorectal condition causing bleeding withdefecation – perfect for exam prep andreal-life clinical scenarios.

🧠 Key Learning Points

📌 Definition

•A small linear tear in the anal canal mucosa, often located at the posteriormidline, causing pain and bleeding during or after defecation.

📌 Causes & Risk Factors

•Trauma from hard or large stools

•Chronic constipation

•Chronic diarrhoea

•Inflammatory bowel disease (e.g. Crohn’s)

•Childbirth (due to perineal trauma)

•Straining during defecation

Mnemonic: “CRISP”– Constipation, Repeated irritation, IBD, Straining, Postpartum

📌 Pathophysiology

•Trauma to anal mucosa → local inflammation

•Increased internal anal sphincter tone → reduced blood flow (ischaemia)

•Poor healing due to reduced perfusion → chronic fissure formation

•Vicious cycle of pain → spasm → ischaemia → non-healing

📌 Symptoms

•Sharp, stinging pain during defecation

•Bright red bleeding on toilet paper

•Post-defecation pain lasting hours

•Possible perianal itching or discomfort

Mnemonic: “PainfulBLEED” – Bright red, Linear tear, Excruciating, External tag (sentinel pile),Defecation-related

📌 Differential Diagnosis

•Haemorrhoids (especially thrombosed)

•Perianal abscess

•Crohn’s disease

•Anal cancer

•Proctitis

•Proctalgia fugax

📌 Diagnosis

•Clinical history and visual inspection

•Avoid DRE initially due to pain

•Look for linear tear (posterior midline), sentinel pile if chronic

•Further investigations (e.g. endoanal ultrasound, manometry) only if refractoryor atypical

📌 Management

•Initial:

• High-fibre diet, increased fluids
• Sitz baths
• Topical anaesthetics (e.g. lidocaine)
  • Topical treatments:
• Glyceryl trinitrate (GTN) 0.2% ointment
• Diltiazem 2% cream
• Nifedipine (off-label)
  • Advanced options:
• Botulinum toxin injections
• Surgery: Lateral internal sphincterotomy (LIS) for chronic or refractory cases
  • Avoid digital rectal exam in acute stage unless necessary
  • Refer if symptoms persist >6–8 weeks despite treatment

📌 Complications

•Chronic fissures

•Sentinel piles

•Anal fistula or abscess

•Rarely, anal stenosis

📌 Prognosis

•Excellent for acute fissures with conservative treatment

•Up to 50% respond well to non-surgical treatment

•Surgery highly effective but small risk of incontinence

•Recurrence possible – long-term lifestyle changes important

📎 More MSRA Resources for AnalFissures

📝 Revision Notes: https://www.passthemsra.com/topic/anal-fissures-revision-notes/

🧠 Flashcards: https://www.passthemsra.com/topic/anal-fissures-flashcards/

💬 Accordion Q&A Notes: https://www.passthemsra.com/topic/anal-fissures-accordion-qa-notes/

🚀 Rapid Quiz: https://www.passthemsra.com/topic/anal-fissures-rapid-quiz/

🎓 Full Course: https://www.passthemsra.com/courses/gastroenterology-for-the-msra/

Hashtags

#MSRA#MSRARevision #MSRATextbook #MSRAQuiz #MSRAQuestionBank #MSRAFlashcards#MSRAQandANotes #MSRAAccordions #MultiSpecialityRecruitmentAssessment#MSRAOnlineRevision #MSRARevisionWebsite #AnalFissures

⚕️ FREE MSRA PODCAST – Alcoholic Liver Disease

🎧 A clear, high-yield breakdown of this progressive liver condition caused by alcohol misuse – perfect for exam prep and real-life clinicalscenarios.

🧠 Key Learning Points

📌 Definition

•Alcoholic Liver Disease (ALD) is a spectrum ofliver conditions due to chronic alcohol intake, including fatty liver (steatosis), alcoholic hepatitis, andcirrhosis.

📌 Causes & Risk Factors

•Chronic and excessive alcohol consumption

•Binge drinking

•Genetic susceptibility

•Female sex (greater sensitivity to alcohol)

•Malnutrition, obesity

•Co-existing liver disease (e.g. hepatitis C)

💡 Mnemonic: ALD = Alcohol,Lifestyle (obesity/malnutrition), Dual-hit (co-infection)

📌 Pathophysiology

•Liver metabolises alcohol → toxic by-products

•Oxidative stress damages hepatocytes

•Progression: steatosis → alcoholic hepatitis → fibrosis → cirrhosis

•Irreversible structural changes in late-stage ALD

📌 Symptoms

•Often asymptomatic in early stages

•Fatigue, weight loss

•Jaundice, hepatomegaly

•Ascites, encephalopathy in advanced stages

💡 Mnemonic: FLAJ – Fatigue, Liverpain, Ascites, Jaundice

📌 Differential Diagnosis

•Non-alcoholic fatty liver disease (NAFLD)

•Viral hepatitis (especially Hep C)

•Autoimmune hepatitis

•Drug-induced liver injury

•Haemochromatosis

📌 Diagnosis

•History of alcohol use is key

•Bloods: ↑ GGT, ↑ AST:ALT ratio (>2 or >3 = alcoholic hepatitis)

•Imaging: Abdominal USS, CT/MRI

•Liver biopsy in uncertain cases

💡 Mnemonic: G-GT = Got-Going Toxic;A-S.T. = Alcohol Stress > ALT

📌 Management

•Complete abstinence from alcohol (mostcritical step)

•Nutritional support

•Corticosteroids for severe alcoholic hepatitis (e.g. prednisolone)

•Alcohol cessation support – counselling, rehab, medications

•Treat complications – ascites, varices, encephalopathy

•Liver transplant in end-stage cases

📌 Complications

•Portal hypertension

•Variceal bleeding

•Hepatic encephalopathy

•Ascites

•Hepatocellular carcinoma

•Pancreatitis, infections, CVD

📌 Prognosis

•Strongly depends on alcohol cessation

•Early intervention improves outcomes

•Advanced cirrhosis carries poor prognosis without transplant

📎 More MSRA Resources for AlcoholicLiver Disease

📝 Revision Notes: https://www.passthemsra.com/topic/alcoholic-liver-disease-revision-notes/

🧠 Flashcards: https://www.passthemsra.com/topic/alcoholic-liver-disease-flashcards/

💬 Accordion Q&A Notes: https://www.passthemsra.com/topic/alcoholic-liver-disease-accordion-qa-notes/

🚀 Rapid Quiz: https://www.passthemsra.com/topic/alcoholic-liver-disease-rapid-quiz/

🎓 Full Course: https://www.passthemsra.com/courses/gastroenterology-for-the-msra/

Hashtags

#MSRA#MSRARevision #MSRATextbook #MSRAQuiz #MSRAQuestionBank #MSRAFlashcards#MSRAQ&ANotes #MSRAAccordions #MultiSpecialityRecruitmentAssessment#MSRAOnlineRevision #MSRARevisionWebsite #AlcoholicLiverDisease

⚕️ FREE MSRA PODCAST – Alcoholic Ketoacidosis (AKA)

🎧 A clear, high-yield breakdown of this serious metabolic emergency –perfect for exam prep and real-life clinical scenarios.

🧠 Key Learning Points

📌 Definition

•Alcoholic Ketoacidosis (AKA) is ametabolic condition seen in chronic alcoholusers, involving high ketones and metabolic acidosis, but normal or low blood glucose

•A key differential diagnosis from DiabeticKetoacidosis (DKA)

📌 Causes & Risk Factors

• Chronic alcohol abuse

• Poor carbohydrate intake / starvation

• Binge drinking

• Malnutrition

• Alcohol withdrawal episodes

📌 Mnemonic: A-K-A = Alcohol – Ketones – Acidosis

📌 Pathophysiology

•Alcohol and starvation → ↑ fatty acid breakdown

•Liver shifts to ketogenesis → ↑ ketones (acetone, acetoacetate,β-hydroxybutyrate)

•Ketones are acidic → high anion gap metabolicacidosis

📌 Symptoms

•Nausea, vomiting, abdominal pain

•Dehydration

•Fruity (acetone) breath

•Kussmaul breathing (deep, rapid breaths)

•Confusion or altered mental state

📌 Mnemonic for symptoms:

Gut rot, gaspy, glucose-low, gon’ fuzzy

=GI upset, Kussmaul breathing, ↓ glucose, altered mental status

📌 Differential Diagnosis

• ✅ Diabetic Ketoacidosis (but with ↑ glucose)

•Starvation ketoacidosis

•Lactic acidosis

•Toxic alcohol ingestion (methanol, ethylene glycol)

📌 Diagnosis

•↑ Ketones, normal/lowglucose

•High anion gap metabolic acidosis (onABG/VBG)

•Check U&Es, glucose, ketones, blood gas, FBC, LFTs

•ECG to exclude other causes

•Always assess for Wernicke’s risk

📌 Management

✅ Fluids first – IVnormal saline

✅ IV thiamine –BEFORE glucose (to prevent Wernicke’s encephalopathy)

✅ Dextrose infusion– to stop ketone production

✅ Correct electrolytes,especially potassium

❌Insulin usually notneeded unless hyperglycaemic

📌 Complications

•Hypovolaemic shock

•Arrhythmias from low potassium

•Wernicke’s encephalopathy / Korsakoff’s syndrome

•Acute kidney injury

•Death (if misdiagnosed or untreated)

📌 Prognosis

•Excellent if diagnosed early and treated properly

•Requires long-term alcohol misuse interventionto prevent recurrence

📎 More MSRA Resources for AlcoholicKetoacidosis

📝 Revision Notes: https://www.passthemsra.com/topic/alcoholic-ketoacidosis-revision-notes/

🧠 Flashcards: https://www.passthemsra.com/topic/alcoholic-ketoacidosis-flashcards/

💬 Accordion Q&A Notes: https://www.passthemsra.com/topic/alcoholic-ketoacidosis-accordion-qa-notes/

🚀 Rapid Quiz: https://www.passthemsra.com/topic/alcoholic-ketoacidosis-rapid-quiz/

🎓 Full Course: https://www.passthemsra.com/courses/gastroenterology-for-the-msra/

Hashtags

#MSRA#MSRARevision #MSRAGastro #AlcoholicKetoacidosis #AKA #MSRAFlashcards#MSRAAccordions #PassTheMSRA #FreeMSRA #MSRAQuestionBank #MetabolicAcidosis#DKAvsAKA #WernickesPrevention