The Daily Differential — Wednesday, June 10, 2026

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Esophageal Rupture

Esophageal rupture is a time-critical surgical emergency with high mortality if missed. It can present after vomiting, instrumentation, or foreign body...

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At the Bedside

Classic triggers:
Forceful vomiting/retching after heavy meal or alcohol use: Boerhaave syndrome
Iatrogenic injury after endoscopy, dilation, NG tube
Foreign body/food impaction with sudden chest pain
Symptoms/signs
Severe chest, neck, or upper abdominal pain
Dyspnea, dysphagia, odynophagia
Fever, tachycardia, shock if delayed
Crepitus/subcutaneous emphysema, Hamman sign may be present
ED priorities
NPO, IV access, fluid resuscitation, analgesia, antiemetics
Broad-spectrum antibiotics early
Immediate thoracic surgery or GI consultation depending on mechanism/local workflow
Workup
Labs: CBC, CMP, lactate, blood cultures if septic
CXR may show pneumomediastinum, pleural effusion, hydropneumothorax, subcutaneous emphysema
CT chest with oral contrast is often the fastest and most useful study in stable patients
Contrast esophagram may be used if CT is equivocal; water-soluble contrast is typically tried first
Management
Do not delay consultation for extensive testing if suspicion is high.
Small contained cervical perforations may sometimes be managed nonoperatively by specialists, but most thoracic perforations need operative or endoscopic intervention.
Start antibiotics covering oral flora and mediastinal contamination; add antifungal only if directed by specialists.
Drain pleural collections/empyema if present.
Disposition
Almost always ICU or OR-capable admission.
The stable patient still needs urgent specialist involvement.

A Classic Presentation

A 46-year-old man with heavy alcohol use develops sudden severe chest pain after repeated vomiting, followed by shortness of breath and neck swelling. Exam reveals tachycardia, subcutaneous crepitus over the suprasternal notch, and decreased left breath sounds. Chest x-ray shows pneumomediastinum and a small left pleural effusion. He is kept NPO, started on broad-spectrum IV antibiotics, given pain control, and taken urgently for CT chest and thoracic surgery consultation.

Patient Presentation to Attending

This is a 46-year-old man with alcohol use disorder who developed abrupt chest pain and dyspnea after forceful retching. My main concern is Boerhaave syndrome because the pain started immediately after vomiting and he now has neck crepitus and a pneumomediastinum on imaging. He’s tachycardic, but he’s not yet in frank shock, and he has no focal ischemic ECG changes to suggest ACS. I’m less concerned for uncomplicated Mallory-Weiss tear because the dominant issue is chest pain and mediastinal air rather than isolated hematemesis. He’s NPO, on broad-spectrum antibiotics, and I’ve already involved thoracic surgery while arranging CT with oral contrast to define the perforation and guide operative versus endoscopic management.

Study Directive

Memorize the Boerhaave triad concept: vomiting + chest pain + subcutaneous emphysema.
Compare Mallory-Weiss vs Boerhaave vs perforated ulcer in a one-page note.
Practice selecting the first-line imaging test for stable versus unstable suspected perforation.

Key Medications

Piperacillin-tazobactam 4.5 g IV q6h
Cefepime 2 g IV q8–12h + metronidazole 500 mg IV q8h as an alternative
Vancomycin if MRSA risk or healthcare-associated concern; dose per protocol
Fentanyl 25–100 mcg IV or hydromorphone 0.5–1 mg IV for pain
Ondansetron 4–8 mg IV
Dosing varies by severity and local practice; verify if uncertain.

High-Yield Pearls

Boerhaave is transmural rupture after vomiting; Mallory-Weiss is mucosal tear with hematemesis.
Pneumomediastinum after vomiting is rupture until proven otherwise.
Time to source control matters; delay worsens mediastinitis and mortality.

Board Question

A 52-year-old man has severe chest pain after repeated vomiting. CXR shows pneumomediastinum. What is the best next step?

ADischarge with proton pump inhibitor and outpatient follow-up
BStart broad-spectrum IV antibiotics and obtain urgent CT chest with oral contrast while consulting surgery
CGive oral barium swallow only and wait for results before consulting anyone
DBegin thrombolysis for presumed pulmonary embolism

Reveal answer

Correct: B

Esophageal rupture is a surgical emergency; early antibiotics, NPO status, and urgent imaging with specialist consultation are essential. CT chest with oral contrast is typically the most useful rapid study in a stable patient.

Recent Literature

Review or guideline Esophageal hiatal hernia: risk, diagnosis and management
Expert Rev Gastroenterol Hepatol, 2018 · cited 141×
Recent clinical The prevalence of life-threatening diagnoses in emergency department patients with chest pain in a national group
Am J Emerg Med, 2026

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Decompensated Cirrhosis

Decompensated cirrhosis is a high-mortality syndrome where small physiologic changes can rapidly lead to variceal bleeding, encephalopathy, renal failure,...

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At the Bedside

Recognize decompensation: ascites, variceal hemorrhage, hepatic encephalopathy, spontaneous bacterial peritonitis (SBP), hepatorenal syndrome, jaundice/coagulopathy.
Initial assessment
ABCs, hemodynamics, glucose, mental status
Look for stigmata: ascites, jaundice, spider angiomas, asterixis, edema, bruising
Key ED workup
CBC, CMP, bilirubin, INR, lactate, type and screen
Ammonia is not required for diagnosis and does not correlate well with severity
If ascites + abdominal pain/fever/encephalopathy: diagnostic paracentesis
Send cell count with differential, culture in blood culture bottles, albumin, total protein
SBP = ascitic PMN ≥ 250 cells/µL
If GI bleed suspected: activate UGIB pathway, large-bore IVs, transfusion strategy, early GI involvement
Consider infection source search: CXR, UA, blood cultures, paracentesis
Common complications
Encephalopathy: altered mentation, asterixis, precipitated by infection, GI bleed, constipation, sedatives, electrolyte derangements
SBP: fever, abdominal pain, worsening ascites, encephalopathy; can be subtle
Variceal bleeding: hematemesis/melena, shock
Hepatorenal syndrome: rising creatinine in cirrhosis after excluding hypovolemia, nephrotoxins, obstruction, and shock
ED treatments
Lactulose for encephalopathy: titrate to 2–3 soft stools/day
Rifaximin often added for recurrent or refractory encephalopathy
SBP: third-generation cephalosporin plus albumin in appropriate patients
Variceal bleed: octreotide, ceftriaxone, blood products as indicated, urgent endoscopy
Avoid NSAIDs, excessive sedatives, nephrotoxins
Disposition
Many decompensated patients need admission; ICU if bleeding, severe encephalopathy, sepsis, or renal failure.
Early transplant-center discussion may be needed in advanced cases.

A Classic Presentation

A 58-year-old man with known alcoholic cirrhosis comes in with confusion and abdominal distention. He is sleepy but arousable, has asterixis, tense ascites, and a low-grade fever. Labs show mild leukocytosis and creatinine rise. Diagnostic paracentesis reveals 1,200 PMNs/µL. He is diagnosed with SBP and hepatic encephalopathy triggered by infection, started on ceftriaxone, lactulose, and albumin, and admitted.

Patient Presentation to Attending

This is a 58-year-old man with alcoholic cirrhosis presenting with confusion and worsening abdominal distention over several days. My main concern is decompensated cirrhosis with SBP precipitating hepatic encephalopathy, since he has tense ascites, asterixis, fever, and renal function worsening. On exam he’s sleepy but arousable, jaundiced, and has diffuse abdominal tenderness without peritonitis. I’m less concerned for primary intracranial pathology because there’s a clear metabolic/infectious trigger and no focal neurologic deficits. Diagnostic paracentesis came back with an ascitic PMN count well above 250, so I’ve started ceftriaxone, lactulose, and albumin and I’m admitting him, with low threshold for ICU if his mental status or hemodynamics worsen.

Study Directive

Practice the diagnostic paracentesis bundle from memory: cell count/diff, culture in blood culture bottles, albumin, total protein.
Write an ED algorithm for cirrhosis + confusion: glucose, infection search, bleeding, lactulose, paracentesis.
Memorize the variceal bleed starter set: octreotide + ceftriaxone + blood + GI.

Key Medications

Lactulose 20–30 g PO/NG every 1–2 hours until bowel movement, then titrate to 2–3 soft stools/day
- or 300 mL in 700 mL water rectally as retention enema if needed
Rifaximin 550 mg PO BID
Ceftriaxone 2 g IV daily for SBP prophylaxis/treatment in variceal bleeding or as treatment per local protocols
Octreotide 50 mcg IV bolus, then 50 mcg/hour infusion for variceal bleeding
Albumin for SBP and selected cirrhotics with renal dysfunction; dosing often 1.5 g/kg day 1, 1 g/kg day 3 for SBP, but verify local protocol
Furosemide/spironolactone dosing varies; commonly spironolactone 100 mg + furosemide 40 mg daily for ascites outpatient management, but acute ED use depends on context
Doses can vary significantly by scenario and severity; check a reference if uncertain.

High-Yield Pearls

In cirrhosis, any new encephalopathy, fever, abdominal pain, or renal injury should trigger a search for SBP.
Ammonia is a poor decision-making test; treat the patient, not the number.
Variceal bleed, SBP, and hepatorenal syndrome are all “can’t miss” decompensation pathways.

Board Question

A cirrhotic patient with new abdominal pain and encephalopathy undergoes paracentesis. Which ascitic fluid finding defines spontaneous bacterial peritonitis?

AAscitic glucose < 40 mg/dL
BAscitic PMN count ≥ 250 cells/µL
CPositive amylase
DSAAG < 1.1 g/dL

Reveal answer

Correct: B

SBP is diagnosed by an ascitic fluid neutrophil count of at least 250 cells/µL. Culture may be negative; treatment should not wait for culture results.

Recent Literature

Review or guideline Liver cirrhosis
Lancet, 2021
Recent clinical Extracellular Vesicles Reflect Thrombo-Inflammatory, Endothelial and Tissue-Remodelling Changes in Cirrhosis
Liver Int, 2026

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Acute Liver Failure

Acute liver failure is a lethal syndrome with rapid progression to cerebral edema, coagulopathy, hypoglycemia, and multiorgan failure. It requires immediate...

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At the Bedside

Definition
Acute liver failure = new hepatic dysfunction with encephalopathy and INR ≥ 1.5 in a patient without known cirrhosis, typically within weeks to months of symptom onset.
Common causes
Acetaminophen toxicity is the most important and treatable cause.
Viral hepatitis, ischemic hepatitis (“shock liver”), drug-induced liver injury, autoimmune hepatitis, mushroom toxicity, Wilson disease, pregnancy-related liver disease, vascular causes.
ED clues
Nausea, vomiting, RUQ pain, jaundice, confusion, easy bruising, hypoglycemia.
May present late with somnolence, asterixis, cerebral edema, shock.
Workup
CBC, CMP, AST/ALT, bilirubin, INR/PTT, glucose, VBG/ABG, lactate, ammonia, acetaminophen level, salicylate level, ethanol level, pregnancy test when relevant, hepatitis panel, CK if ischemic/toxic picture.
If acetaminophen history is unclear, treat empirically when suspicion is present.
Head CT if focal deficit, trauma, or concerning alternate diagnosis; do not delay transfer for routine neuroimaging.
Management
Early N-acetylcysteine (NAC) for suspected acetaminophen injury and often for non-acetaminophen acute liver failure as well, per specialist guidance.
Correct hypoglycemia immediately with dextrose.
Manage airway if encephalopathy compromises protection.
Avoid hypotension, hypoxia, and unnecessary sedatives.
Check and treat infection/sepsis.
Contact transplant/hepatology early; disposition is usually ICU or transplant center.
Complications to monitor
Hypoglycemia, cerebral edema, bleeding, renal failure, shock, hyperammonemia.
Rising INR and worsening mental status are ominous.

A Classic Presentation

A 24-year-old woman presents with nausea, vomiting, and confusion after taking large amounts of acetaminophen over the past day for a dental infection. She is jaundiced, hypoglycemic, and somnolent. Labs show AST and ALT in the thousands, INR 3.2, and elevated bilirubin. She is treated immediately with IV NAC and dextrose, her airway is reassessed frequently, and hepatology/transplant are contacted for urgent transfer.

Patient Presentation to Attending

This is a 24-year-old woman with likely acetaminophen exposure presenting with vomiting and progressive confusion over the last day. My main concern is acute liver failure because she has encephalopathy, marked transaminitis, INR elevation, and hypoglycemia, which together suggest loss of hepatic synthetic and detoxification function. On exam she’s jaundiced and somnolent but protecting her airway for now, without focal neurologic deficits to suggest a primary intracranial event. Her acetaminophen level may be low or even undetectable at this point, so I’m not waiting on that given the clinical picture. I’ve started IV N-acetylcysteine, corrected glucose, and contacted hepatology/transplant for ICU-level care and transfer consideration.

Study Directive

Memorize the definition of acute liver failure and say it out loud from memory.
Build a one-page acute liver failure order set: glucose, INR, acetaminophen level, NAC, transplant call.
Practice 3 cause-based differentials: acetaminophen, ischemic hepatitis, viral/drug-induced hepatitis.

Mechanism Pearl of the Day: Several of today’s topics are emergencies because they fail at a barrier interface: aspiration breaches the airway–lung barrier, esophageal rupture breaches the GI–mediastinal barrier, and liver failure/cirrhosis reflect loss of the liver’s metabolic, synthetic, and detoxifying barrier against systemic toxicity.

Key Medications

N-acetylcysteine (IV protocol) commonly:
- 150 mg/kg IV over 1 hour
- then 50 mg/kg over 4 hours
- then 100 mg/kg over 16 hours
- Protocols vary; check institutional reference, especially for extended infusions or oral NAC.
Dextrose for hypoglycemia, e.g. D50W 25 g IV in adults, or D10 infusion as needed
Lactulose may be used for encephalopathy, though acute liver failure management is specialist-driven
Vitamin K 10 mg IV/PO may be reasonable if deficiency is possible, though it will not fix synthetic failure
Doses and duration can vary; verify if uncertain.

High-Yield Pearls

The diagnosis is clinical plus INR: encephalopathy + INR ≥ 1.5 without known cirrhosis.
NAC is most effective for acetaminophen toxicity but is commonly started early when suspicion is meaningful.
Hypoglycemia and cerebral edema are immediate threats; do not wait for the cause to fully declare itself.

Board Question

Which finding is required for the diagnosis of acute liver failure?

AAST/ALT greater than 1,000
BEncephalopathy and INR ≥ 1.5 in a patient without known cirrhosis
CJaundice for more than 6 months
DAscites and spider angiomas

Reveal answer

Correct: B

Acute liver failure is defined by acute hepatic dysfunction with encephalopathy and coagulopathy in a patient without preexisting cirrhosis. Very high transaminases can support the diagnosis but are not required.

Recent Literature

Review or guideline Acute liver failure
Lancet, 2024 · cited 134×
Recent clinical Tandem extracorporeal blood purification therapies for sepsis and acute kidney injury in critically ill children: a state-of-the-art review
Ren Fail, 2026

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TheDaily Differential

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At the Bedside

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