Obstructive jaundice

10 min read Last updated April 8, 2026

Surgical approach (typical procedures causing/relieving obstruction)

  • Endoscopic biliary decompression
    • Sphincterotomy ± stone extraction; biliary stent insertion
    • May be combined with EUS-guided biopsy/drainage in malignancy
  • Laparoscopic/open biliary surgery
    • Intra-operative cholangiography; transcystic exploration or choledochotomy
    • T-tube occasionally used (less common now)
  • Biliary bypass / drainage for unresectable malignancy
    • Palliative bypass when ERCP/stenting not possible or failed
  • Resection for periampullary/pancreatic head malignancy
    • Resection of pancreatic head/duodenum ± distal stomach; reconstruction with pancreaticojejunostomy, hepaticojejunostomy, gastrojejunostomy
    • Major blood loss/physiological insult; long case

Anaesthetic management (procedure-dependent overview)

  • Type of anaesthesia
    • ERCP: deep sedation or GA depending on aspiration risk, complexity, prone/semi-prone positioning, comorbidity
    • Major surgery (Whipple/bypass): GA + regional/neuraxial adjunct where appropriate
  • Airway
    • ERCP: ETT if high aspiration risk (full stomach, gastric outlet obstruction, sepsis), prolonged/complex, or need for controlled ventilation in prone
    • SGA may be acceptable for short, low-risk ERCP in experienced units; consider access/positioning limitations
  • Duration
    • ERCP: ~30–90 min (can be longer if difficult cannulation/stone work)
    • Cholecystectomy/CBD exploration: ~1–3 h
    • Whipple: ~4–8+ h
  • Pain
    • ERCP: usually mild post-procedure discomfort; watch for pancreatitis
    • Upper abdominal laparotomy (bypass/Whipple): severe; consider epidural or alternative regional techniques + multimodal analgesia
  • Key anaesthetic themes in obstructive jaundice
    • Treat cholangitis aggressively; anticipate vasopressor requirement and postoperative critical care
    • Check coagulation before neuraxial/regional blocks; correct vitamin K deficiency and manage anticoagulants

Definition and causes

  • Obstructive jaundice = conjugated hyperbilirubinaemia due to impaired bile flow (intrahepatic cholestasis or extrahepatic obstruction).
  • Common causes
    • Choledocholithiasis ± cholangitis
    • Pancreatic head cancer, cholangiocarcinoma, ampullary carcinoma
    • Benign strictures (post-surgical), primary sclerosing cholangitis
  • Clinical features
    • Cholangitis: fever, RUQ pain, jaundice (Charcot triad) ± hypotension/confusion (Reynolds pentad)

Pathophysiology relevant to anaesthesia

  • Cardiovascular
    • Endotoxaemia and inflammatory mediators → vasoplegia; may be exaggerated at induction
    • Cirrhosis may coexist (portal HTN, hyperdynamic circulation)
  • Renal
    • Bile salts/endotoxin + hypovolaemia/sepsis → renal vasoconstriction/tubular injury
    • Higher susceptibility to nephrotoxins (NSAIDs, aminoglycosides, contrast) and peri-operative hypotension
  • Coagulation
    • Reduced bile salts in gut → fat malabsorption → reduced vitamin K absorption → ↓ factors II, VII, IX, X (↑ PT/INR)
    • Thrombocytopenia may occur with sepsis, hypersplenism, marrow suppression or malignancy
  • Hepatic drug handling
    • Reduced hepatic uptake/excretion of drugs; hypoalbuminaemia → ↑ free fraction of highly protein-bound drugs
    • Cholestasis can prolong action of some agents; titrate to effect and use depth/neuromuscular monitoring
  • Infection and inflammation
    • Biliary obstruction predisposes to ascending infection; instrumentation (ERCP) can precipitate bacteraemia
    • Sepsis → vasoplegia, myocardial depression, coagulopathy, AKI, encephalopathy
  • Respiratory/GI
    • Delayed gastric emptying (pain, opioids, sepsis) and gastric outlet obstruction in pancreatic malignancy
    • Pruritus and sleep disturbance → fatigue; consider peri-operative delirium risk

Assessment and investigations

  • History/exam
    • Symptoms of cholangitis, pancreatitis, weight loss, pruritus; bleeding/bruising; confusion (encephalopathy/sepsis)
    • Volume status; signs of chronic liver disease; cardiorespiratory reserve (major upper abdominal surgery)
  • Blood tests
    • Cholestatic pattern: ↑ ALP/γGT, ↑ conjugated bilirubin; transaminases variable
    • FBC (anaemia, WCC), U&E/creatinine, glucose, CRP; group & save/crossmatch for major surgery
    • PT/INR, fibrinogen; consider TEG/ROTEM if available for major surgery or bleeding
  • Imaging and staging
    • Ultrasound: duct dilatation, gallstones; CT/MRCP for level/cause; EUS/ERCP for intervention/biopsy

Pre-operative optimisation

  • Treat sepsis early
    • Broad-spectrum antibiotics per local policy; source control via urgent biliary drainage (ERCP/PTC/surgery)
    • Resuscitate: fluids, lactate monitoring, early vasopressors if needed; consider ICU
  • Correct coagulopathy
    • Vitamin K (e.g., 10 mg IV) if INR elevated due to cholestasis; allow time to work if elective
    • If urgent/bleeding: PCC/FFP guided by INR/viscoelastic testing; platelets if indicated
  • Renal protection
    • Optimise volume status; avoid NSAIDs if AKI risk; careful with contrast; dose-adjust renally cleared drugs
  • Nutrition and metabolic issues
    • Consider dietetic input; correct electrolytes; manage diabetes (pancreatic disease)
  • Pre-operative biliary drainage (PBD) in malignancy
    • May be used for cholangitis, severe pruritus, renal dysfunction, very high bilirubin, neoadjuvant therapy, or delay to surgery
    • Can increase infectious complications; decision is MDT- and patient-specific

Intra-operative management (general principles)

  • Monitoring and access
    • Major surgery/sepsis: arterial line before induction if unstable; large-bore IV access; consider CVC for vasoactive infusions and access
    • Temperature, urine output, serial ABG/lactate for major cases
  • Induction and haemodynamics
    • Titrate induction agents; consider reduced doses if septic/vasodilated
    • Have vasopressors ready (metaraminol/phenylephrine; noradrenaline infusion for ongoing vasoplegia)
  • Airway/aspiration precautions
    • Full stomach, obstruction, sepsis, opioids, or ERCP in prone: consider RSI with cuffed ETT
  • Ventilation
    • Upper abdominal surgery: moderate PEEP, avoid high driving pressures; recruitment as needed; consider epidural effects on ventilation
  • Fluids and blood
    • Balance avoiding hypoperfusion (AKI) vs overload; use dynamic indices/CO monitoring if available
    • Crossmatch for major surgery; cell salvage may be considered (institutional policy, malignancy considerations)
  • Analgesia
    • Epidural can provide excellent analgesia for laparotomy but requires acceptable coagulation and haemodynamic tolerance
    • Alternatives: intrathecal opioid, TAP/subcostal TAP, rectus sheath blocks, wound catheters, IV lidocaine (local policy), ketamine
  • Antibiotics
    • Ensure appropriate biliary coverage and redose for long cases/major blood loss

Post-operative care

  • Disposition
    • Sepsis, major resection, significant comorbidity, vasopressor requirement, major blood loss → critical care
  • Complications to anticipate
    • ERCP: pancreatitis, perforation, bleeding, cholangitis; monitor pain, amylase/lipase if symptomatic
    • Whipple: pancreatic fistula, delayed gastric emptying, haemorrhage, intra-abdominal sepsis
  • Analgesia and PONV
    • Upper abdominal surgery: aggressive multimodal analgesia; avoid excessive opioids where possible
    • PONV prophylaxis; consider NG tube per surgical plan (especially gastric outlet issues)
You are asked to anaesthetise a patient with obstructive jaundice for ERCP. What are your main concerns and how will you plan the anaesthetic?

Structure: patient factors (sepsis/aspiration/coagulation/renal), procedure factors (positioning, access), and a pragmatic plan (sedation vs GA).

  • Concerns
    • Cholangitis → vasoplegia at induction, need for vasopressors, potential ICU
    • Aspiration risk: delayed gastric emptying, opioids, gastric outlet obstruction; prone/semi-prone limits airway access
    • Coagulopathy from vitamin K deficiency; thrombocytopenia in sepsis/malignancy
    • Renal vulnerability; avoid hypotension and nephrotoxins
  • Plan
    • If septic/aspiration risk/complex ERCP: RSI, cuffed ETT, controlled ventilation; arterial line if unstable
    • If low risk/short ERCP: deep sedation may be acceptable with capnography, suction, readiness to convert to GA
    • Antibiotics as indicated; fluids and vasopressors prepared; post-procedure monitoring for pancreatitis/sepsis
Explain why obstructive jaundice is associated with a prolonged PT/INR and how you would manage this peri-operatively.

Aim: link cholestasis to vitamin K malabsorption and reduced synthesis of vitamin K-dependent clotting factors; then give a practical correction strategy.

  • Mechanism
    • Bile salts are required for micelle formation and absorption of fat-soluble vitamins (A, D, E, K)
    • Vitamin K deficiency → reduced γ-carboxylation → ↓ activity of factors II, VII, IX, X (and proteins C/S) → prolonged PT/INR
  • Management
    • Give IV vitamin K (time-dependent effect; best if elective)
    • If urgent surgery or active bleeding: PCC or FFP guided by INR/TEG/ROTEM; correct fibrinogen/platelets as needed
    • Neuraxial techniques only if coagulation acceptable and stable; document trend and timing of correction
A jaundiced patient becomes profoundly hypotensive after induction. What are the likely causes and your immediate management?

Think vasoplegia (sepsis/endotoxin), hypovolaemia, myocardial depression, bleeding, anaphylaxis, and drug effects; treat simultaneously.

  • Likely causes
    • Septic vasodilation/endotoxaemia; exaggerated response to induction agents
    • Relative hypovolaemia from poor intake, third spacing, diuretics
    • Myocardial depression (sepsis/ischaemia) or arrhythmia; less commonly anaphylaxis
  • Immediate management
    • 100% O2, check airway/ventilation, deepen/adjust anaesthesia, confirm rhythm, treat arrhythmias
    • Give vasopressor boluses (e.g., metaraminol/phenylephrine) and start noradrenaline infusion early if persistent
    • Fluid bolus guided by response; consider arterial line, ABG/lactate; search for bleeding/anaphylaxis
Discuss how obstructive jaundice affects the kidneys and how you would reduce peri-operative AKI risk.

FRCA focus: mechanisms + practical anaesthetic measures.

  • Why AKI risk is increased
    • Systemic inflammation/endotoxaemia → renal vasoconstriction and microcirculatory dysfunction
    • Hypovolaemia and vasodilation → reduced renal perfusion pressure
    • Higher susceptibility to nephrotoxins and contrast; sepsis-associated tubular injury
  • Risk reduction
    • Maintain MAP (individualised; often ≥65 mmHg, higher if chronic HTN) with fluids + vasopressors
    • Avoid NSAIDs in high-risk patients; dose-adjust renally cleared drugs; careful with contrast
    • Monitor urine output, creatinine trend, lactate/acid-base; consider goal-directed fluid therapy in major surgery
What are the anaesthetic implications of pruritus and cholestasis-related malnutrition in obstructive jaundice?

Often overlooked: functional status, skin integrity, drug binding, and peri-operative delirium risk.

  • Pruritus
    • Fatigue and reduced physiological reserve; consider delirium risk in older/septic patients
    • Skin damage may affect monitoring/IV access; infection risk if excoriated
  • Malnutrition/hypoalbuminaemia
    • Reduced protein binding → increased free fraction of some drugs; titrate opioids/sedatives carefully
    • Impaired immunity and wound healing; higher postoperative complication risk
Outline your anaesthetic plan for a pancreaticoduodenectomy (Whipple) in a patient with obstructive jaundice.

Major upper abdominal surgery: long duration, large fluid shifts, bleeding risk, and high postoperative morbidity.

  • Pre-op
    • Assess for cholangitis; correct INR with vitamin K; crossmatch; evaluate cardiopulmonary reserve and frailty
    • Discuss postoperative critical care, analgesia strategy, and transfusion plan
  • Intra-op
    • A-line, large-bore IVs; consider CVC; active warming; serial ABGs; urine output monitoring
    • Goal-directed fluids; early noradrenaline for vasoplegia; blood products guided by labs/viscoelastic testing
    • Analgesia: epidural if coagulation acceptable and haemodynamics allow; otherwise intrathecal opioid/regional blocks + multimodal
  • Post-op
    • Monitor for bleeding, sepsis, AKI, respiratory complications; manage glycaemia and nutrition early
What complications can occur after ERCP and how would they present and be managed peri-operatively?

Common FRCA theme: recognise and escalate early.

  • Post-ERCP pancreatitis
    • Epigastric pain, vomiting, raised amylase/lipase; can progress to SIRS/organ failure
    • Management: fluids, analgesia, antiemetics, oxygen, critical care if severe
  • Bleeding
    • Haematemesis/melaena, hypotension, drop in Hb; higher risk with coagulopathy/anticoagulants
    • Management: resuscitation, correct coagulopathy, endoscopic haemostasis ± IR/surgery
  • Perforation
    • Severe pain, tachycardia, surgical emphysema, sepsis; imaging confirms
    • Management: antibiotics, NBM, surgical/IR input; may require laparotomy
  • Cholangitis/bacteraemia
    • Fever, rigors, hypotension; treat as sepsis with antibiotics and ensure adequate drainage
In a jaundiced patient, how might you adjust your choice/dose of anaesthetic drugs?

Answer should mention: titration, protein binding, hepatic clearance, and context (sepsis vs stable).

  • General approach
    • Use lower initial doses if vasodilated/septic; incremental dosing with close haemodynamic monitoring
    • Be cautious with highly protein-bound drugs if hypoalbuminaemic (greater free fraction)
  • Opioids and sedatives
    • Prefer short-acting, titratable agents; avoid excessive long-acting sedatives; consider delirium risk
  • Neuromuscular blockers
    • Use quantitative monitoring; choose agents with predictable clearance where possible; ensure full reversal
When would you avoid an epidural in obstructive jaundice and what alternatives could you offer for upper abdominal surgery?

Key issues: coagulopathy and haemodynamic instability; provide realistic alternatives.

  • Avoid/consider contraindications
    • Raised INR/low platelets or uncertain correction; ongoing sepsis; anticipated profound vasodilation/vasopressor dependence
    • Patient refusal, spinal pathology, or inability to safely manage epidural post-op
  • Alternatives
    • Intrathecal morphine (if coagulation acceptable) + multimodal analgesia
    • Subcostal TAP/rectus sheath blocks, wound catheters, systemic adjuncts (ketamine, lidocaine per policy)
Describe the physiological effects of obstructive jaundice relevant to anaesthesia and critical care.

A high-yield answer is system-based: CVS, renal, coagulation, infection, CNS, pharmacology.

  • Cardiovascular
    • Endotoxaemia/inflammation → vasodilation; increased sensitivity to anaesthetic-induced hypotension
  • Renal
    • Hypoperfusion + inflammatory injury; increased risk with sepsis and nephrotoxins
  • Haematology/coagulation
    • Vitamin K deficiency → prolonged PT/INR; thrombocytopenia possible
  • Infection
    • Ascending infection; ERCP/surgery can precipitate sepsis
  • Pharmacology
    • Altered hepatic excretion/uptake; increased free drug fraction; prolonged effects—titrate and monitor
  • CNS/metabolic
    • Delirium risk; fat-soluble vitamin deficiency; impaired wound healing
A patient with obstructive jaundice is listed for laparotomy. How would you assess and optimise them pre-operatively?

Use a structured pre-op approach: identify cause/urgency, detect sepsis and organ dysfunction, correct reversible problems, plan level of care.

  • Assess severity and urgency
    • Look for fever, hypotension, confusion; review imaging for level of obstruction and need for drainage
  • Investigations
    • Crossmatch; consider ABG/lactate if septic; ECG ± echo/CPET if major surgery and time allows
  • Optimisation
    • Treat sepsis; IV fluids; early vasopressors if required; consider ICU
    • Correct INR with vitamin K; manage anticoagulants; plan blood products if urgent
    • Address renal risk: avoid nephrotoxins, maintain perfusion; correct electrolytes; nutrition support
  • Planning
    • Discuss epidural vs alternatives based on coagulation and haemodynamics; plan invasive monitoring and HDU/ICU bed
Discuss the anaesthetic management of a septic patient with obstructive jaundice requiring emergency biliary drainage.

This is essentially anaesthesia for sepsis + source control, with added coagulopathy/AKI/aspiration considerations.

  • Before theatre
    • Oxygen, cultures, antibiotics, fluids, lactate; start noradrenaline early if shock persists
    • Correct coagulopathy where possible; ensure blood availability
  • Induction
    • A-line before induction if unstable; cautious dosing; vasopressor boluses and infusion ready
  • Intra-op
    • Maintain MAP with noradrenaline ± inotrope if myocardial depression; careful fluid strategy
    • Monitor urine output, ABG/lactate; temperature control; glycaemic control
  • Post-op
    • Ventilation/vasopressors may be required; ongoing antibiotics and organ support; monitor for DIC/AKI

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