Gastroenterology & General Surgery Flashcards
Acute abdomen
- Presentation
- Organ rupture - causes
- Peritonitis - causes
- Local peritonitis - causes
- Colic - description
- Acute tenderness, guarding, rigidity, absence of bowel sounds, septic (sweating, pale, weak pulse, shallow breath)
- Spleen, aorta, ectopic pregnancy
- Perforation (ulcer, diverticulum, appendix, bowel, gallbladder)
- Diverticulitis, cholecystitis, salpingitis
- Regularly waxing/waning, muscular spasm in hollow viscus (gut, ureter, uterus, bile duct, gallbladder)
Abdominal pain
- History - associated symptoms
- Bloods
- Bedside tests
- Imaging
- Vomiting, haematemesis, eating/drinking, swallowing, stools (loose/blood), urine (frequency/urgency/blood), vaginal discharge, menstruation, FEVER, weight loss, night sweats
- FBC, U+;E, LFTs, glucose, CRP, amylase
- Urine dip - glucose, infection, pregnancy
- CXR (perforation), USS abdomen, CT
Abdominal examination - to complete
Hernial orifices External genitalia PR Urine dip Stool sample if feel appropriate
Appendicitis
- Symptoms
- McBurney’s point - significance and location
- Rovsings sign - how to elicit and significance
- Other differentials (4)
- Bedside tests
- Blood tests
- Imaging
- Definitive management
- Other management
- Periumbilical pain moving to LIF, tachycardia, fever, peritonism, vomiting, constipation
- Most common location for base of appendix (where it attaches to the caecum). 2/3 of the way from the umbilicus to the right ASIS
- Press on RIF and pain in the LIF. Can be present in appendicitis
- Ectopic pregnancy (RULE OUT), ovarian cyst (torsion/rupture), meckel’s diverticulitis, mesenteric adenitis
- Urine dip, BM, pregnancy test, BP, palpable RIF mass
- FBC, U+E, CRP - leucocytes + CRP raised
- USS abdomen, CT if diagnosis unclear
- Appendectomy
- Antibiotics - metronidazole, cefuroxime
Diarrhoea
Causes
- GI
- Systemic
- Drugs
- Infective
- Important history questions
- Significant findings requiring follow up
Differentials
- Bloody
- Mucus
- Frank pus
- Explosive
- Steatorrhoea
Investigations
- Bedside
- Blood
- Non-bedside
- Imaging
- Management
C difficile
- Diagnosis
- Complication
- Acute management
- Recurrent management
- Infection, malignancy, IBD, IBS, malabsorption
- Endocrine, anxiety, bacterial overgrowth
- Laxatives, antibiotics, SSRIs, metformin
- E.coli, shigella, salmonella, campylobacter
- Acute/chronic, travel, diet change, contact with D+V, fever, pain
- Anaemia, weight loss, nocturnal diarrhoea
- Infective, IBD, colorectal cancer, polyps
- IBS, colorectal cancer, polyps
- IBD, diverticulitis, fistula/abscess
- Cholera, giardia, rotavirus
- Pancreatic insufficiency, biliary obstruction
12. PR (overflow due to constipation) Urine dip and culture Stool sample - viral / bacterial / occult blood 13. FBC, U+E, LFTs, CRP, TFTs 14. GI Endoscopy 15. AXR, abdominal ultrasound
- Treat the cause, rehydrate, slow bowel movements (?) - opioids / stop medication
- Two stage: 1. Rapid screening/PCR for C.diff protein, 2. Specific ELISA for toxins
- Toxic megacolon
- Stop causative antibiotic, metronidazole (mild), vancomycin (severe)
- Fidaxomicin PO
Nausea + Vomiting
Causes
- GI
- Metabolic
- Neurological
- Cardiovascular
- Drugs
Timing
- Morning
- 1 hour post-food
- Relieves pain
- Preceded by loud gurgling
- Infection (pancreatitis, pyelonephritis, gastroenteritis, cholecystitis), obstruction, inflammation
- DKA, hypercalacaemia, hyponatraemia, Addison’s disease, pregnancy
- Head trauma, tumour, motion sickness, Meniere’s
- MI
- Opioids, antibiotics, chemotherapy, alcohol
- Pregnancy, raised ICP
- Gastric stasis/gastroparesis (DM)
- Peptic ulcer
- GI obstruction
Bowel cancer - guidelines for suspicion
40+ with unexplained weight loss and abdominal pain or
50+ with unexplained rectal bleeding or
60+ over with:
Iron-deficiency anaemia
Changes in their bowel habit
Tests show occult blood in their faeces
Colorectal carcinoma / bowel cancer
- Commonest type
- Predisposing factors
- Genes responsible
- Right-sided presentation
- Left-sided presentation
- Examination signs
- Blood tests
- Further tests
- Staging (Duke’s)
- Screening
- Test if FH of FAP
- Adenocarcinoma
- Polyps, IBD, genetic, diet (low fibre, red meat), alcohol, smoking, previous cancer
- FAP, HNPCC
- Diarrhoea, weight loss, anaemia, RIF mass, abdominal pain - often late presenting
- Constipation, bleeding, PR bleed/mucus, tenesmus
- Abdominal mass, hepatomegaly (metastases), rectal mass, IDA signs
- FBC (looking for IDA), LFTs, U+E, CEA (monitor progress)
- Colonoscopy, barium swallow, imaging (MR/endorectal US)
- 1 (to muscularis), 2 (to suberosa), 3 (nodes involved), 4 (distant spread)
- 55 -one-off flexible sigmoidoscopy, 60-74 - home-testing (FOB/FIT) for occult blood every 2 years
- DNA at 16
Oesophageal cancer
- Type (commonest and BO-associated)
- Virus associated with commonest type
- Symptoms
- Signs
- Common metastasis
- Tests
- Non-metastasis treatment
- Metastasised treatment
- Urgent 2ww referral criteria
- Non-urgent referral criteria
- Squamous cell carcinoma, adenocarcinoma
- EBV
- Fatigue, increasing dysphagia, odynophagia, hoarseness, vomiting, haematemesis, cough
- Weight loss, anaemia, hepatomegaly, lymphadenopathy, ascites
- Liver
- FBC, LFTs, upper GI endoscopy, barium swallow, further imaging for staging
- Oesophageal resection
- Palliative
- Dysphagia or 55+ and weight loss + one of upper abdominal pain, reflux or dyspepsia
- Haematemesis, or 55+ and other upper GI symptoms
Gastro-oesophageal reflux disease (GORD)
- Causes
- Symptoms
- Tests
- Conservative management
- Medical management
- Surgical management (when severe and refractory)
- Surgical complications
Barrett’s Oesophagus
- Cause
- Location
- Histological changes
- Significance
- Management - no dysplasia
- Management - low grade dysplasia
- Management - moderate/high grade dysplasia
- LOS hypotension, hiatus hernia, oeseophageal dysmotility (e.g. systemic sclerosis), obesity, gastric acid hypersecretion, smoking, alcohol, pregnancy
- Heartburn, belching, acid brash, water brash, odynophagia, nocturnal asthma, chronic cough, laryngitis
- Endoscopy if dysphagia / >55 + ALARMS symptoms / treatment refractory dyspepsia
- Weight loss, stop smoking, small/regular meals, reduce hot drinks/alcohol/citrus/fizzy drinks/spicy. Avoid eating 3 hours before bed and raise bed head
- Antacids or alginates (Gaviscon) for symptom relief, and PPI. Add H2 blocker/double PPI dose if refractory
- Fundoplication
- Dysphagia, ‘gas bloat’ syndrome, new diarrhoea
- Chronic GORD
- Lower oesophagus
- Stratified squamous to simple columnar with interspersed goblet cells (dysplasia)
- Oesophageal adenocarcinoma more likely
- High dose PPI
- Endoscopic radiofrequency ablation
- Oesophagectomy or endoscopic ablation/mucosal resection
Gastric Carcinoma
- Commonest type
- Risk factors
- Symptoms
- Signs
- Blood tests
- Gold-standard investigations
- Management if localised
- Management if metastatic
Gastrectomy
- Physical complications (+ causes)
- If raised amylase and abdominal pain
- Metabolic complications
- Adenocarcinoma
- H. pylori, smoking, poor diet, blood group A, chronic gastritis, pernicious anaemia, adenomatous polyps
- B symptoms, N+V, abdominal pain, dyspepsia, dysphagia (oesophageal obstruction), upper GI bleed
- Palpable epigastric mass, Virchow’s node (left supraclavicular)
- FBC, LFTs (metastases)
- Upper GI endoscopy, barium swallow
- Resection / gastrectomy
- Palliative, stents if obstructions
- Abdominal fullness (eat little/often), afferent loop syndrome (upper abdominal pain, bilious vomit), diarrhoea (codeine), gastric tumour, increased amylase
- Consider afferent loop obstruction
- Dumping syndrome (post-prandial sweating/fainting - eat less sugar/more pectin/take acarbose), weight loss, bacterial overgrowth/malabsorption (blind loop syndrome), anaemia, osteomalacia
Pancreatic cancer
- Commonest type
- Risk factors
- Symptoms
- Signs
- Rarer features
- Blood tests
- Further investigations
- Management options
Carcinoid tumours
- Origin
- Common sites
- Carcinoid syndrome
- Cardiac involvement - which side
- Management
Carcinoid crisis
- Cause
- Symptoms
- Management
- Ductal adenocarcinoma
- Smoking, DM, pancreatitis, KRAS2 gene mutation
- Usually painless, abdominal mass, weight loss, non-specific back pain
- Painless progressive obstructive jaundice (HoP tumour) and non-tender palpable gallbladder (Courvoisier’s law), if tail then pancreatitis pain symptoms
- Thrombophlebitis migrans, high Ca2+, marantic endocarditis, portal HTN (splenic vein thrombosis), nephrosis (renal vein metastases)
- FBC, LFTs
- USS, CT, ERCP
- Surgical (Whipple’s procedure), palliative (stenting, pain relief)
- Enterochromaffin cell from neural crest; produce 5HT
- Appendix, ileum, rectum
- Implies hepatic involvement; bronchoconstriction, flushing, RUQ pain, endocrine abnormality, diarrhoea
- Octreotide (somatostatin analogue), loperamide
- Right - tricuspid insufficiency + pulmonary stenosis
- Tumour outgrows vessel supply or handled too much perioperatively, tumour mediators flow out
- Life threatening vasodilation, hypotension, tachycardia, bronchoconstriction, hyperglycaemia
- Octreotide, supportive, fluid balance (central line)
Constipation
- Medical causes
- Surgical causes
- Drug causes
- Important questions
- Examination
- Blood tests
- Imaging
- Conservative management
- Medical management
- Laxative - types and examples (4, ‘BOSS’)
- When not to use stimulants
- What to use if pain e.g. fissure
- Other useful use for osmotic laxative
- Diverticulitis, IBD, IBS, Coeliac, immobility, dehydration, raised calcium/phosphate, Parkinson’s disease, pregnancy, hypothyroidism
- Appendicitis, malignancy, obstruction, ischaemic bowel
- Anti-cholinergics, opiates, iron, calcium channel blockers (e.g. amlodipine, nifedipine, verapamil, diltiazem)
- Normal bowel habit - how many stools per day (? <3 per week) and for how long, overflow diarrhoea, melaena, pain, diet, new medications, red flags (fever, weight loss, night sweats), foreign travel, flatus/mucus
- Abdominal and PR
- FBC (haematinics e.g. B12/folate), U+E, LFTs, TFTs
- USS, AXR, CT (extreme)
- Exercise, fibre
- Laxatives, enema
- Bulking (methylcellulose), Osmotic (lactulose), Softer (docusate), Stimulants (senna)
- Intestinal obstruction, acute colitis
- Softening
- Hepatic encephalopathy
Acute pancreatitis - causes
I - idiopathic
G - gallstones
E - ethanol
T - trauma
S - steroids M - mumps A - autoimmune S - scorpion venom H - High: lipid, calcium, parathyroid E - ERCP D - drugs: furosemide, azathioprine, thiazides, tetracycline, statins, oestrogen
Acute pancreatitis
- Definition
- Causes
- Symptoms
- Signs
- Criteria for clinical outcome, score for ITU
- Specific blood tests (and results)
- Other bloods (and results)
- Imaging
- Management
- Early complications
- Late (>1 weeks) complications
- Acute inflammation of the pancreas by autodigestion
- I GET SMASHED
- N+V, abdominal pain radiating to back and relieved by sitting forward
- Grey turner’s sign (flank bruising), cullen’s sign (umbilical bruising), tachycardia, fever, shock, ileus, rigid abdomen
- Glasgow score, >3
- Amylase (>1000/may be normal), lipase (more specific, especially in alcohol, rise earlier/falls later)
- FBC (raised WBC), U+E, LFTs (if raised ALT, gallstones), raised glucose, urea, CRP, decreased albumin and calcium
- CT (1st line for severity), AXR (no psoas shadow from retroperitoneal fluid, sentinel loop of proximal jejunum from ileus), CXR (perforation), USS (if gallstones/raised AST), ERCP (if LFTs worsen)
- Supportive - O2, fluids, analgesics, anti-emetics, insulin, antibiotics 5-7 days, PPI, regular monitoring
- Shock, ARDS, renal failure, DIC, low Ca2+, high BM
- Pancreatic necrosis/pseudocyst (fever, mass, persistent high amylase/LFT), abscess, bleeding, thrombosis, fistulae
Chronic pancreatitis
- Definition
- Causes
- Clinical features
- Bloods
- Imaging
- Management
- Diet advice if exocrine insufficiency
- Complications
- Irreversible inflammation +/ fibrosis
- Alcohol, high calcium/PTH/lipids, biliary disease, cystic fibrosis
- Jaundice, abdominal pain (radiates to back, improves on sitting forward/hot water bottles), bloating, steatorrhoea (loose, greasy, foul-smelling), weight loss
- LFTs (abnormal if coexisting liver disease / compression of the intra-pancreatic bile duct), NOT serum amylase
- CXR, USS/CT (pancreatic calcifications)
- Lifestyle (stop drinking/smoking), analgesia, screening for diabetes/osteoporosis, pancreatin (lipase, amylase, protease) with all food if exocrine insufficiency
- Food distributed between 3 meals + 2-3 snacks / day. Avoid legumes (peas, beans, lentils) and high-fibre as difficult to digest. Reduced fat diets not recommended
- Pseudocysts, DM, biliary obstruction, local arterial aneurysm, splenic vein thrombosis, gastric varices, pancreatic carcinoma
Dyspepsia
- Definition
- Local causes
- Systemic causes
- Drug causes
- Important symptoms ‘ALARMS’
- Other symptoms
- Investigations (under or over 55)
- Peptic ulcers - cause
- Duodenal - relation to eating/antacids
- Gastric - commonest patient cohort
- Relation to eating
- Conservative management
- Antacids - types and examples
- Indigestion
- GORD, H. pylori, gastritis, gastric/duodenal ulcer, hiatus hernia
- Infection, alcohol, smoking
- NSAIDs, steroids, bisphosphonates
- Anaemia (ID), Loss of weight, Anorexia, Recent/progressive onset, Malaena/haematemesis, Swallowing difficulty
- Epigastric, related to hunger/food, fullness after meals, heartburn, tender epigastrium
- Under 55 needs urea breath test, add OGD if 55+
- Layer breakdown (steroids, NSAIDs, H. pylori), increased acid (ZES gastrinoma, stress, alcohol, caffeine, smoking, spicy food)
- Better after eating, relieved by antacids
- Elderly, on lesser curve
- Worse when eating, relieved by antacids
- Weight loss, stop smoking, less drinking/hot drinks
- PPI (lanzoprazole, omeprazole), H2 blocker (ranitidine)
Dysphagia
- Intraluminal causes
- Extraluminal causes
- Systemic causes
- Important questions
- 1st line investigation
- Further imaging
Achalasia
- Causes
- Symptoms/signs
- Most important diagnostic test + finding
- Other imaging + finding
- Management
- Inflammation (oesophagitis), malignancy
- Stricture, malignancy, achalasia (solids and liquids), goitre, vascular obstruction
- Parkinson’s, myasthaenia gravis, scleroderma, bulbar palsy, motor neurone disease
- Solids/liquids (both from start motility disorder, solids 1st worsening stricture), difficult to start swallowing (bulbar palsy), odynophagia (ulceration/spasm), intemittent (spasm) / continuous (stricture), bulge/gurgle when drinking (pharyngeal pouch), B symptoms
- Endoscopy
- Barium swallow, CT
- LOS fails to relax (myenteric plexus degeneration) -
- Liquids as well as solids, heartburn, regurgitation
- Manometry - high LOS tone, doesn’t relax if swallow 10. Barium swallow - dilated tapering oesophagus ‘bird’s beak’
- Endoscopic balloon dilatation/Heller’s cardiomyotomy then PPI
Biliary medicine - definitions
- Cholelithiasis
- Choledocholithiasis
- Cholecystitis
- Biliary colic
- Cholestasis
- Cholangitis
- Gallstones in gallbladder
- Gallstones passed into biliary tree
- Inflammation of the gallbladder
- Intermittent RUQ pain from gallstones irritating bile ducts
- Blockage to bile flow
- Infection + obstruction of the biliary system
Gallstones
- Types
- Percentage that are radio-opaque
- Factors increasing incidence
- Main precipitant for mixed stones
- 5 Fs of gallstone disease
- Courvoisier’s law
- Gallbladder size vs obstructed biliary tree
- Commonest presentation
- Cause of obstructive jaundice due to gallstones
- Imaging
- Asymptomatic management
- Medical management
- Surgical management
- Management if inoperable but symptomatic
- Cholesterol (large, solitary), pigment (small/irregular, from haemolysis)
- 10% seen on x-ray
- Overweight, pregnancy, diuretics, smoking
- Infection
- Fat, female, fertile, forty, fair
- Not gallstones if presenting with enlarged palpable gallbladder and painless obstructive jaundice - pancreatic cancer until proven otherwise
- Smaller (larger in biliary tree obstruction)
- 80% asymptomatic
- Choledocholithiasis
- USS first line, MRCP if no stones on USS but there is bile duct dilatation / raised bilirubin
- Conservative
- Medical: pain relief, anti-emetics, antibiotics if infection
- If symptomatic/complications: cholecystectomy
- ERCP / lithotripsy (US shock waves)
Cholecystitis
Acute
- Main cause
- Presentation
- Signs
- Blood tests
- USS findings
- Medical management
- Surgical management
Chronic
- Definition
- Presentation
- Gallstones impaction in neck of gallbladder
- Feverish, unwell, RUQ pain radiating to shoulder, taking shallow breaths, N+V, dyspepsia (no jaundice) - inflammatory component differs from simple biliary colic
- Fever, tachycardia, tachypnoea, Murphy’s sign (patient stops inspiring deeply on palpation of RUQ as gallbladder moves down to costal margin)
- FBC, U+E, LFTs, CRP, amylase, maybe culture
- Thickened gallbladder wall, stones / sludge within, fluid around, dilated bile ducts
- NBM, fluids, antibiotics (cover gram positive and negative) anti-emetic, analgesia
- Cholecystectomy - if severe / complications within 72 hours, up to 1 week if not
- Chronic inflammation/colic
- ‘Flatulent dyspepsia’, fat intolerance, vague pain, distension
Cholangitis
- Definition
- Causes
- Charcot’s triad
- Common presentation
- Management
- Inflammation of bile duct
- Infection, iatrogenic (past stent), obstruction
- Jaundice, fever/rigors, RUQ pain (only present in 25%)
- Sepsis
- ABCDE, + ERCP to retrieve stone
Gallbladder cancer
- Commonest type
- Risk factors
- Presentation
- Blood markers
- Management
- Adenocarcinoma, then squamous cell
- Chronic gallstones, congenital malformation, older, FH, obese
- Late - weight loss, jaundice, RUQ mass
- CEA, CA 19-9
- Cholecystectomy, sometimes chemotherapy / radiotherapy
Gastroenteritis - general
- Vomiting causing organisms
- Watery diarrhoea causing organisms
- Dysentery (inflammation) causing organisms
- Risk factors
- Symptoms within 4 hours - which infection
- Symptoms within 12-48 hours - which infection
- Treatment
- Staph aureus, bacillus cereus (rice)
- Cholera, E. coli (enterotoxigenic)
- E. coli (enterohaemorrhagic), shigella, salmonella, campylobacter (traveller)
- Young/old, immunosuppressed, travellers
- Food poisoning
- Toxin-producing / cell invaders
- Most resolve on own - fluids, anti-emetics, rehydration, antibiotics if systemically unwell/immunocompromised)
Upper GI bleed
- Classification
- Oesophageal causes
- Gastric causes
- Drug causes
- Important questions to ask
- Presentation
- Mouth to 2nd part of duodenum
- Oesophagitis, mallory-weiss tear, malignancy, varices
- Gastritis, ulcer, malignancy
- NSAIDs, aspirin, steroids, thrombolytics, anticoagulants
- Past GI bleed, dyspepsia/known ulcers, liver disease, varices, dysphagia, vomiting, weight loss
- Haematemesis, coffee-ground vomit, malaena, haemodynamic instability, symptoms suggesting ulcer (epigastric pain, dyspepsia) or varices (jaundice, ascites)
Lower GI bleed
- Classification
- Small + large bowel causes
- Rectal/anal causes
- Rectal bleeding - initial investigations
- 2nd part of duodenum to anus
- Malignancy, IBD, diverticulitis, ulcer, polyps
- Malignancy, fissure, haemorrhoid, fistula, IBD
- PR, procto-sigmoidoscopy (+ colonoscopy if change in bowel habit/IBD symptoms)
GI bleed - general
- Associated symptoms
- PMH questions
- Causative medications
- Bedside tests
- Blood tests
- Imaging
- Score to determine risk of bleed at initial presentation
- Score used pre-endoscopy to determine risk of rebleeding/overall mortality
- Management - general (ABATED + other)
- Management - variceal
- Lifestyle advice post-bleed
- Treatment if high risk of re-bleeding
- Weight loss, vomiting, signs of chronic liver disease/anaemia
- Binge drinking, liver decompensation
- Anticoagulants, antiplatelets, steroids, NSAIDs, alcohol
- BP (lying and standing), PR, monitor urine output
- FBC (Hb down), U+E (urea up), haematinics, LFT, clotting, group + save, ABG
- CXR (look for perforation), maybe barium swallow / endoscopy
- Glasgow-Blatchford
- Rockall (pre and post-endoscopy)
- ABCDE
Bloods (Hb, urea, coagulation, LFTs, crossmatch 2 units)
Access (2x large bore cannulae)
Transfuse
Endoscopy (when stable, within 24 hours)
Drugs - stop anticoagulants/NSAIDS
Other - interventional radiology to identify bleeding point, medical (antibiotics, PPI, H. pylori), surgery (if failure to stop), correct clotting (vit K, FFP, platelets) - Terlipressin (maximum 5 days), banding or TIPS if oesophageal, endoscopic N-butyl-2-cyanoacrylate injection or TIPS if gastric, Sengstaken-Blakemore tube
- Avoid NSAIDs, reduce alcohol
- PPI infusion, B blockade (1/2 prevention if variceal)
Hernia - general
- Risk factors
- Irreducible - definition
- Obstructed - definition
- Incarcerated - definition
- Strangulated - definition
- Surgical management
- Periumbilical hernia - presentation, risk factors
- Umbilical hernia - presentation
- Epigastric hernia - pass through what
- Spigelian hernia - pass through what
- Richter’s hernia - involve what
Hiatus hernia
- Sliding - cause
- Rolling/paraoesophageal - cause
- Management
- Paediatric - umbilical hernia cause
- Paediatric - indirect inguinal hernia cause
- Obesity, previous surgery, coughing, straining (chronic constipation)
- Contents cannot be pushed back into place
- Bowel contents cannot pass
- Hernial contents fixed due to adhesions, surgical emergency
- Ischaemia of the bowel contents of the hernia, surgical emergency
- Mesh or suture to secure
- Umbilicus is a semicircle, obesity/ascites
- Mass bulges directly from umbilicus
- Linea alba above umbilicus
- Linea semilunaris at lateral edge of rectus sheath, below/lateral to umbilicus
- Bowel wall only, not whole lumen
- GOJ slides into chest, LOS looser, reflux common
- GOJ remains in abdomen (intact so less reflux), but stomach slides into chest; common in obese women
- Weight loss, treat GORD, surgery if refractory/severe
- Transversalis fascia defect
- Patient processus vaginalis
Femoral and Inguinal Hernias
- Femoral hernia location to pubic tubercle
- Inguinal hernia location to pubic tubercle
- Strangulation commoner in which ^ and why
- Femoral hernia presentation
- Femoral hernia management
- Indirect inguinal hernia passes through
- Direct inguinal hernia passes through
- Strangulation commoner in which ^
- Inguinal ligament runs from
- Determine whether direct or indirect
- Inguinal canal - contents (male)
- Inguinal canal - alternative contents (female)
- Inferolaterally
- Superomedially
- Femoral, because of sharp lacunar ligament
- Tender swelling in upper medial thigh, often irreducible
- Urgent surgery, likely to strangulate
- Deep and superficial inguinal ring
- Just superficial inguinal ring
- Indirect
- ASIS to pubic tubercle, deep ring at mid point, superficial just superomedial to pubic tubercle
- Direct reduced when lying down, indirect restrained when pressure over deep ring when lying down
- Fascia, spermatic cord (vas deferens, arteries to vas/cremaster/testes), ilioinguinal nerve
- Uterus round ligament
AXR
- Small bowel appearance
- Large bowel appearance
- Valvulae conniventes span the whole lumen, also more central
- Haustra don’t cross whole lumen, also more peripheral
Small bowel obstruction
- Causes in lumen
- Causes in wall
- Causes outside the bowel
- Typical presentation
- Examinations
- Blood tests
- Imaging
- Management
- Polyp, intussusception, gallstone, faeces
- Tumour, Crohn’s, infarction, stricture
- Intussusception, adhesions, volvulus
- ‘Early vomiting, late constipation’. Cramping/colicky central abdominal pain, bilious vomiting, some distention, increased ‘tinkling’ bowel sounds
- Abdominal exam, hernial orifices, PR
- FBC, U+E, CRP, amylase
- Erect CXR, AXR
- Mostly conservative ‘drip and suck’; surgery if ischaemic bowel / incarcerated hernia
Large bowel obstruction
- Causes in lumen
- Causes in wall
- Causes outside the bowel
- Typical presentation
- Imaging
- Medical management
- Surgical management
- Polyp, mass
- Diverticulitis, Crohn’s, mass, impacted faeces
- Volvulus, adhesions
- ‘Early constipation, late vomiting’, colicky pain, distended abdomen (more than in SBO)
- Erect CXR, AXR
- Drip and suck, water-soluble enema
- Emergency if ischaemic, stenting
Other obstruction causes
Volvulus
- Definition
- Commonest location (2)
- Presentation
- AXR finding
- Imaging to confirm
- Management - sigmoid, no peritonitis
- Management - surgical
- Paralytic ileus - definition
- Contributing factors
- Specific examination finding
- Acute pseudo-obstruction - aka
- Predisposing factors
- Management
- Twisting of bowel around mesenteric attachment
- Sigmoid colon (anticlockwise), then caecal (clockwise)
- Colicky abdominal pain, distention, constipation
- Coffee bean sign (dilated, twisted sigmoid colon)
- CT to confirm / rule out other pathology
- Endoscopic decompression
- Hartmann’s (sigmoid), right hemicolectomy (caecal)
- Adynamic bowel due to absence of normal peristaltic contractions
- Abdominal surgery, localised peritonitis, spinal injury, low Na+/K+, urea, drugs (TCAs)
- ‘Sluggish’ bowel sounds
- Ogilvie’s syndrome
- Puerperium, pelvic surgery, trauma, cardiorespiratory / neurological disorders
- Neostigmine, colonoscopic decompression
Crohn’s disease
- Lesions present
- Extent of inflammation at cellular level
- Bleeding
- Associated disease
- Smoking
- Classic presentation
- Mild-moderate into remission treatment
- Severe into remission treatment
- Maintaining remission - management
- Indications for surgery
- Skip - entire length of GI tract (terminal ileum worst)
- Transmural
- Less common
- Ankylosing spondylitis
- Makes it worse
- Non-bloody diarrhoea, RIF/suprapubic pain, weight loss, fever, malaise, mouth ulcers
- Prednisolone 1st line, 5-ASA 2nd line
- IV hydrocortisone, fluid rehydration
- Azathioprine 1st line, methotrexate 2nd line
- Failure of medical therapy, intestinal obstruction, perforation
Ulcerative Colitis
- Lesions location
- Histopathology
- Bleeding
- ‘Cure’
- Precipitate
- Linked gene
- Type of mediated response
- Linked liver condition
- Smoking
- Severe colitis presentation
- Severe AXR findings
- Inducing remission in mild/moderate flare
- Inducing remission in severe flare
- Maintaining remission
- Surgical management
- Complications
- Continuous - rectum upwards
- Mucosal lesions; hyperaemic/haemorrhagic colonic mucosa, punctate ulcers to lamina propia (not transmural)
- More common
- Colectomy of affected region
- Infection, stress
- HLA-B27
- T helper - type 2
- Primary sclerosing cholangitis
- Protective
- Fever, weight loss, haemodynamic compromise, abdominal distention
- Loss of colonic markings - ‘lead pipe’ picture
- Aminosalicylate (PR, PO if extensive)
- IV hydrocortisone with hydration
- 5-Aminosalicylate (e.g. mesalazine), immunosuppressants (2+/year then immunomodulation)
- Colectomy / ileostomy (done in 20%)
- Perforation, bleeding, toxic megacolon, malignancy
Inflammatory bowel disease
- Extra-intestinal manifestations
- Imaging
- Colonic surveillance
- Prognosis
- Blood tests
- Bedside tests
- Uveitis, joint arthritis, erythema nodosum on shins, pyoderma gangrenosum on legs, clubbing, primary sclerosing cholangitis leading to sclerosis
- Endoscopy (gold-standard), barium swallow, CT/MR
- 10 years after 1st diagnosis, repeat depending on risk
- Lifelong remitting and relapsing
- FBC, U+E, CRP (active inflammation)/ESR, LFTs
- Stool sample, faecal calprotectin (high)
Irritable bowel syndrome
- Classification
- Trigger
- Symptoms
- Bloods to exclude other causes
- Other tests to exclude other causes
- Diagnostic criteria
- Diarrhoea IBS - medical treatment
- Constipation IBS - medical treatment
- Diarrhoea and constipation
- Stress, post-infectious
- Bloating, pain, feeling of not emptying bowel, nausea, anxiety/depression
- FBC, U+E, CRP, haematinics, TFTs, coeliac serology, Ca-125
- Stool culture, faecal calprotectin (low), urinalysis, USS
- Recurrent abdominal pain/discomfort with 2+ of (relief by defecation, altered stool form/ bowel frequency)
- Immodium
- Gentle laxatives, antispasmodics
Malabsorption
- Causes
- Features
- Bloods if suspected
- Other tests if suspected
- Imaging
- Digestive enzyme failure, inflammation, structural abnormality (resections, diverticulae), pancreatic disease, cystic fibrosis, coeliac disease, malignancy, pancreas disease
- Diarrhoea, weight loss, failure to thrive, lethargy, flatus, ascites, oedema, abdominal pain, distention, vitamin deficiencies
- FBC, iron studies, LFTs, clotting, coeliac serology
- Faecal calprotectin, faecal appearance and fat collection over 3 days, faecal elastase (pancreatic exocrine insufficiency)
- Endoscopy
Splenomegaly
- Massive - causes
- Normal - causes
Associated symptoms - differentials
- Fever
- Lymphadenopathy
- Purpura
- Arthritis
- Ascites
- Murmur
- Anaemia
- Weight loss + CNS signs
- Chronic myeloid leukaemia, malaria, myelofibrosis
- Sickle-cell thalassaemia, rheumatoid arthritis, haemolytic anaemia, chronic lymphocytic leukaemia, infectious mononucleosis
- Infection (malaria/TB/EMV/CMV/HIV), sarcoid, malignancy
- Glandular fever, leukaemia, lymphoma, Sjogren’s
- Septicaemia, DIC, amyloid, meningococcaemia
- Sjogren’s, RA, SLE, lyme disease, vasculitis/Behcets
- Carcinoma, portal HTN
- IE, rheumatic fever, amyloid
- Sickle cell, thalassaemia, leukaemia, pernicious anaemia
- Lymphoma, TB, paraproteinaemia
Mouth disease - causes
- Leucoplakia
- Aphthous ulcers (+ management)
- Candidiasis (+ management)
- Cheilitis (angular stomatitis)
- Gingivitis
- Microstomia
- Oral pigmentation
- Blue gum line
- Furred/dry tongue
- Glossitis
- Macgroglossia
- Tongue cancer
- Pre-malignant, e.g. oral hairy in EBV HIV
- Crohn’s, coeliac, behcet’s, infections. Give tetracycline/antimicrobial mouth wash e.g. chlorhexidine, with topical steroid gel (triamcinolone); tablet if severe
- Buccal mucosa, can be removed. Give nystatin/fluconazole.
- Mouth corner fissure from dentures, candidiasis, IDA/B2 deficiency
- Poor oral hygiene, drugs (phenytoin, ciclosporin, nifedipine), pregnancy, vit C deficiency, AML
- Burns, epidermolysis bullosa, systemic sclerosis
- Peutz-Jegher’s (perioral brown), Addison’s, melanoma, SS/osler-weber-rendu (telangiectasia),
- Lead poisoning
- Dehydration, drugs, radiotherapy, Crohn’s, Sjogren’s
- Iron, folate, B12 deficiencies
- Myxoedema, acromegaly, amyloid
- Raised ulcer with firm edges, RF include smoking/alcohol
Anti-emetics
Dopamine (D2) receptor antagonists
- Examples
- Side effects
- Contraindications
Serotonin (5HT3) receptor antagonist
- Example
- Side effect
- Contraindications
Antihistamines (H1 receptor)
- Example
- Side effects
- Prochlorperazine, domperidone*, metoclopramide
- Hyperprolactinaemia, extra-pyramidal syndrome
- Parkinson’s disease (can give domperidone), potential obstruction (metoclopramide has prokinetic properties)
- Ondansetron
- Prolonged QT (Torsades), serotonin syndrome
- Prolonged QT syndrome, severe liver disease
- Cyclizine
- Anticholinergic effects, drowsiness
Coeliac disease
- Cause
- Associations
- Presentation
- Bloods
- Antibodies found
- Invasive test and findings
- Management
- Complications
- Increased risk of which malignancies
- T cell response to gluten (wheat, barley, rye, oats)
- HLA DQ2 (95%) / DQ8 (5%), autoimmune disease, dermatitis herpetiformis
- Steatorrhoea, diarrhoea, abdominal pain, bloating, N+V, aphthous ulcers, angular stomatitis, weight loss, fatigue, failure to thrive, osteomalacia
- Low Hb/B12/ferritin/folate, raised RCDW
- Anti transglutaminase 1st line, which is IgA type
- Duodenal biopsy whilst eating gluten; shows subtotal villous atrophy, high intra-epithelial WBCs, crypt hyperplasia
- Lifelong gluten free diet
- Anaemia, dermatitis herpetiformis, osteopoenia/osteoporosis, neuropathies
- GI T cell lymphoma, gastric/oeseophageal/colorectal
Nutritional disorders
- Scurvy - deficiency, signs, management
- Beriberi - deficiency, signs
- Pellagra - deficiency, signs, causes
- Xerophthalmia - deficiency, signs
- Fat-soluble vitamins (so deficiency if malabsorption)
Absorption location, signs of deficiency
- B2
- B12
- Folic acid
- Vitamin C. Listlessness, anorexia, halitosis, gingivitis, bleeding, weakness. Change diet, give ascorbic acid
- Vitamin B1. Wet (HF + oedema), dry (neuropathy)
- Nicotinic acid. Diarrhoea, dementia, dermatitis, from carcinoid syndrome/isoniazid
- Vitamin A. Blindness (cloudy/bitot spots on conjunctiva)
- A, D (rickets, osteomalacia), E (haemolysis, neuro), K (bleeding)
- Proximal small intestine. Angular stomatitis + cheilitis
- Terminal ileum. Macrocytic anaemia, glossitis, neuropathy
- Jejunum. Macrocytic anaemia
Post-operative complications
- Pyrexia - commonest causes within 48 hours
- Pyrexia - bloods to send
- Oliguria - commonest cause
- Oliguria - output to aim for
- Primary haemorrhage - definition + management
- Reactive haemorrhage - causes + management
- Secondary haemorrhage - cause + timing
- Atelectesis (physio), tissue damage, or blood transfusions
- FBC, U+E, CRP, cultures, +/- CRP
- Too little replacement of lost fluid
- > 30ml/hour
- Continuous bleeding, starting during surgery; replace blood loss
- Haemostasis restarts when BP rises; replace blood + explore wound
- Infection; 1-2 weeks post-op
Specific post-op complications
- Laparotomy - early (+ sign)
- Laparotomy - late (+ management)
- Biliary - early
- Biliary - late
- Aortic
- Colonic - early
- Colonic - late
- Small bowel
- Splenectomy
- Wound breakdown, serous pink discharge)
- Incisional hernia, mesh
- Bile duct injury, cholangitis, bile leak, haemobilia, pancreatitis
- Bile duct stricture, post-cholecystectomy syndrome
- Gut ischaemia, renal failure, trauma to ureters or anterior spinal artery, aorto-enteric fistula
- Sepsis, ileus, fistula, anastomotic leak
- Adhesional obstruction
- Short gut syndrome (diarrhoea + malabsorption) - vitamin deficiency, hyperoxaluria (renal stones), bile salt depletion (gallstones)
- Acute gastric dilatation, thrombocytosis, sepsis (give pre-op HiB/meningococcal/pnemococcal vaccines + lifelong penicillin)
Abdominal masses - differentials
- History and examination
- Right iliac fossa
- Distension (6 Fs)
- Ascites without portal HTN
- Ascites with portal HTN
- Left upper quadrant
- Site, size, shape, surface, pulsatile, mobile, nodes (supraclavicular and inguinal), ballotable
- Appendix mass/abscess, caecal carcinoma, Crohn’s, intussusception, kidney malformation
- Flatus, fat, fluid, foetus, faeces, f’ing big tumour
- Malignancy, TB, low albumin, CCF, pericarditis, pancreatitis
- Cirrhosis, IVC/portal vein thrombosis, Budd-Chiari
- Spleen, stomach, kidney, colon, pancreas
Bowel ischaemia
- Consider if 2 signs
Acute mesenteric
- Bowel part and artery involved
- Causes
- Presentation (triad)
- Bloods
- Imaging
- Complications (2)
- Management
Chronic mesenteric
- Presentation (triad)
- Other symptoms
- Cause
- Imaging
- Management
Chronic colonic
- Cause
- Presentation
- Gold standard investigation
- Management
- AF and abdominal pain
- Small bowel, superior mesenteric artery (duodenum to 1st half of transverse colon)
- Thrombosis/embolism (AF), low-flow state, trauma, vasculitis, radiotherapy, strangulation (volvulus/hernia)
- Acute/severe abdominal pain (constant, central/RIF), no/minimal abdominal signs, rapid hypovolaemia/shock
- Raised Hb (plasma loss), raised WCC, metabolic acidosis (lactate), moderately raised plasma amylase
- AXR (‘gasless abdomen’)
- Septic peritonitis, SIRS/multi organ failure
- Fluid resuscitation, antibiotics, LMWH
- Severe/colicky post-prandial pain (gut claudication), weight loss, upper abdominal bruit
- PR bleeding, malabsorption, N+V
- Low flow state (atheromatic disease in all three mesenteric arteries) - celiac (stomach, biliary, pancreas, liver), inferior (2ns half of transverse colon to rectum)
- CT angiography/contrast-enhanced MR angiography
- Percutaneous transluminal angioplasty + stent
- Low flow in inferior mesenteric artery
- Lower left abdominal pain, bloody diarrhoea
- Lower GI endoscopy
- Conservative - fluid replacement, antibiotics
Oesophageal rupture
- Iatrogrenic causes (85-90%)
- Other causes
- What causes Boerhaave syndrome
- Differential diagnosis
- Clinical features
- Complications (2), less likely in which
- Management
- Endoscopy, biopsy, dilatation
- Trauma, carcinoma, Boerhaave syndrome, corrosive ingestion
- Repeated violent vomiting
- Pneumothorax
- Odynophagia, tachypnoea, dyspnoea, fever, shock, surgical emphysema
- Mediastinitis, sepsis, less likely in iatrogenic causes
- NG tube, PPI, ABX, surgery if severe
Obesity
- Definition
- Type more associated with co-morbidity
- Risk factors
- Bloods
- Female calorie intake for weight loss
- Male calorie intake for weight loss
- Conservative management
- Pharmacological management
- When to consider surgical therapy
- BMI >32 kg/m2
- Central
- Hypothyroidism, hypercortisolism, age >40, peri/post-menopause
- FBC, cholesterol, TFT
- 1000 - 1200 p/d
- 1200 - 1500 p/d
- Combined diet and exercise
- Orlistat (combine with above)
- BMI >40 or >35 with obesity-related comorbidities
Diverticular disease
- Diverticulum - definition
- Diverticulosis - definition
- Commonest location
- Diverticular disease - definition/features
- Management
- Diverticulitis - definition
- Features
- Mild management
- Severe management
- Complications
- Diagnosis
- Gut wall outpouching at perforating artery entry sites
- Presence of diverticula without symptoms
- Sigmoid colon
- Altered bowel habit/left colic relieved by defecation, nausea, flatulence
- Antispasmodics e.g. meberevine
- Diverticular inflammation
- Features above plus pyrexia, raised WCC/ESR/CRP, tender colon, peritonism
- Bowel rest (fluids only) + antibiotics
- Admit - analgesia, NBM, IV fluids/ABX
- Abscess (pericolic/mesenteric/pelvic) generalised peritonitis (purulent/faecal), perforation (ileus, peritonism, shock), fistulae, post-infective sigmoid stricture
- CT abdomen (1st line for acute diverticulitis)
Gastroenteritis - other
- Viral - causes (3)
- E.coli - spread (3)
- Salmonella - spread (2)
- Campylobacter (traveller’s diarrhoea) - spread (3)
- ABX choice (2) (also for)
- Bacillus cereus - appearance
- Spread
- Also causes
- Yersinia - appearance
- Think this if
- Giardia lamblia - management
- Isolation - until
- Complications
- Rotavirus, norovirus, adenovirus (subacute diarrhoea)
- Infected faeces, unwashed salads, water
- Raw eggs, raw poultry
- Raw poultry, untreated water, unpasteurised milk
- Azithromycin, ciprofloxacin (also for shigella)
- Gram positive rod
- Leftover fried rice (sick soon after- cereulide toxin)
- Infective endocarditis in IVDUs (staph. most common)
- Gram negative bacillus
- Children with lymphadenopathy and GI symptoms
- Metronidazole (diagnose with stool microscopy)
- 48 hours after symptoms completely resolved
- Lactose intolerance, IBS, reactive arthritis, GBS
H. Pylori
- Type of bacteria
- Why it is damaging
- Test - indication
- Do not test within
- Test - outpatient
- Important question to ask
- Test - mid-endoscopy
- Eradication treatment
- If large, do what
- Gram negative aerobe
- Produced ammonia to neutralise acid; this damages epithelial cells
- If <55, or if >55 after 4 weeks of unsuccessful lifestyle dyspepsia management
- 4 weeks of ABX or 2 weeks of PPI
5 C-urea breath test/stool antigen
- Had eradication before or not
- Rapid urease test (CLO test)
- Triple therapy: PPI + 2 ABX (Amoxicillin/metronidazole + clarithromycin) for 7 days
- Continue PPI for 21 more days
Haemorrhoid
- External - origin, risk
- Internal - origin, symptom
- Internal grading - degrees (1-4)
- Symptoms/signs
- Management
- Thrombosed haemorrhoid - cause
- Presentation
- Management
- Other differentials (3)
- Below dentate line; painful, prone to thrombosis
- Above dentate line; painless
- 1st: no prolapse
2nd: prolapse when straining, returns on relaxing
3rd: prolapse when straining, push back to return
4th: prolapsed permanently - Asymptomatic, constipation, painless bright red bleeding (on toilet paper or dripping), sore/itchy anus, feeling a lump around/in anus
5. Soften stools - increase fibre/fluid intake Topical local anaesthetic/steroid/anusol Bind ligation (outpatient), surgery if severe/resistant
- Strangulation at haemorrhoid base, causing thrombosis
- PR too painful, purple, very tender swollen lumps around anus
- Consider excision if present within 72 hours; if not then stool softeners/ice/analgesia + resolves in 10 days
- Fissure, cancer, IBD
Colorectal carcinoma - curative resections
- Management - general
- Caecum / right colon
- Transverse segment
- Descending colon
- Sigmoid colon
- Rectum
- Low rectum
- Follow-up
- Radiotherapy (pre-operative rectal, palliative colon), surgery, adjuvant chemotherapy in stage 3/4
- Right hemicolectomy
- Extended right hemicolectomy
- Left hemicolectomy
- Sigmoid colectomy
- Anterior resection
- Abdomino-perineal resection, permanent colostomy
- CT TAP - 1 and 2/3 years
Colonoscopy - 1 and 5 years
CEA - 6 monthly for 3 years