Consultant Gastroenterology oral assessment prep

Knowledge: The pattern of a progressive rise in creatinine over days with a bland sediment, low urinary sodium, no shock, no nephrotoxins and no response to diuretic withdrawal is characteristic of hepatorenal syndrome-AKI by the International Club of Ascites criteria, but the diagnosis requires exclusion of hypovolaemia through albumin volume expansion at 1 g/kg per day for two days, exclusion of structural kidney disease, and exclusion of spontaneous bacterial peritonitis, which his neutrophil count of 90 does not meet since the threshold is 250 per mm3.

Management: I would stop diuretics, beta-blockers if hypotensive, and any nephrotoxins, give intravenous albumin 1 g/kg per day up to 100 g for two days as a volume challenge, send blood and ascitic cultures, repeat diagnostic paracentesis and screen for infection which is the commonest precipitant.

Ethics and communication: He has asked directly whether he is dying, and I must answer honestly, at his pace, checking first what he already understands and what he wants to know, and then giving a truthful and gentle picture that his liver disease is now advanced, that transplantation is currently not available to him, and that his remaining time is likely to be short.

Reference: EASL Clinical Practice Guidelines for the management of patients with decompensated cirrhosis, Journal of Hepatology 2018; AASLD Practice Guidance: Diagnosis, Evaluation, and Management of Ascites, Spontaneous Bacterial Peritonitis and Hepatorenal Syndrome, Hepatology 2021

Knowledge: This is Grade III, severe acute cholangitis by the Tokyo Guidelines 2018, because she has organ dysfunction with hypotension unresponsive to fluids and a raised lactate, and she also meets Charcot and arguably Reynolds criteria. Mortality in this group is high and the single determinant of outcome is the timeliness of biliary decompression, which should occur urgently and within twenty-four hours, and effectively as soon as she is resuscitated.

Management: Immediate sepsis management with blood cultures, broad-spectrum antibiotics covering Gram-negative and anaerobic biliary organisms according to local resistance patterns, fluid resuscitation and early vasopressor support with intensive care involvement rather than persisting with fluid alone. I would hold apixaban, check a full blood count, renal function and fibrinogen, and correct any coagulopathy from sepsis rather than reversing the DOAC pharmacologically.

Ethics and communication: Consent in a septic, hypotensive elderly patient requires a careful capacity assessment; if she retains capacity I must give her a genuine choice including the option of a less invasive percutaneous route, and if she does not, I would act in her best interests, consult next of kin and document who was involved and why.

Reference: Tokyo Guidelines 2018 for acute cholangitis and cholecystitis, Journal of Hepato-Biliary-Pancreatic Sciences 2018; ESGE Guideline: Endoscopy in patients on antiplatelet or anticoagulant therapy (update), Endoscopy 2021

Knowledge: The clinical picture of late sepsis with gas within a walled-off necrotic collection is highly suggestive of infected necrosis, which occurs in around a third of patients with necrotising pancreatitis and is the main driver of late mortality. Routine prophylactic antibiotics have no role in sterile necrosis, but here targeted therapy is justified, and I would not routinely perform fine-needle aspiration for culture as it adds little and risks contamination.

Management: I would resuscitate with fluids, take blood cultures, start broad-spectrum antibiotics with good pancreatic penetration such as a carbapenem or piperacillin-tazobactam guided by local antibiograms, and involve intensive care given the confusion and organ dysfunction.

Ethics and communication: Consent for EUS-guided drainage must be specific and documented: I would explain the real risks of bleeding, perforation, stent migration and the likely need for repeated procedures, and I would be explicit that the pseudoaneurysm raises bleeding risk, because a generic endoscopy consent form would not withstand scrutiny.

Reference: ESGE Guideline: Endoscopic management of acute necrotizing pancreatitis, Endoscopy 2018; American Gastroenterological Association Clinical Practice Update on Management of Pancreatic Necrosis, Gastroenterology 2020

Knowledge: This is paracetamol-induced acute liver failure with hyperacute onset, and she already fulfils the King's College criteria for paracetamol toxicity: an arterial pH below 7.30 after adequate resuscitation is sufficient alone, and she additionally has the triad of INR above 6.5, or in modified terms a markedly raised INR, creatinine above 300 micromol/L and grade III to IV encephalopathy is the alternative combination.

Management: Continue the N-acetylcysteine infusion without interruption and do not stop it because time has elapsed since ingestion, as late administration still improves outcomes in established hepatotoxicity. I would transfer her immediately to intensive care and telephone the regional liver transplant unit at once rather than waiting for grade III encephalopathy, because the window for transfer closes rapidly.

Ethics and communication: The first ethical task is a structured capacity assessment, documented in the notes, showing that encephalopathy prevents her from understanding, retaining and weighing the decision, which means her refusal is not a valid contemporaneous refusal and I must act in her best interests.

Reference: AASLD Practice Guidance on Acute Liver Failure, Hepatology 2023; EASL Clinical Practice Guidelines on the management of acute (fulminant) liver failure, Journal of Hepatology 2017