Malabsorption DDx


Malabsorption can result from pancreatic enzyme deficiency, bile salt deficiency, defects of the absorptive epithelium and defects in removing absorbed fat from the epithelium.


Lipolytic phase defects (pancreatic enzyme deficiency)

  • chronic pancreatitis
  • cystic fibrosis

Micellar phase defects (bile salt deficiency):

  • extrahepatic biliary obstruction
  • chronic liver disease
  • bacterial overgrowth
  • terminal ileal disease, such as Crohn’s disease or resection

Mucosal defects (diseased epithelial lining):

  • coeliac disease
  • tropical sprue
  • lymphoma
  • Whipple’s disease
  • bowel ischaemia or resection
  • amyloidosis
  • hypogammaglobulinaemia
  • HIV infection

Delivery phase defects (inability to transport fat out of cells to lymphatics):

  • intestinal lymphangiectasia
  • abetalipoproteinaemia
  • carcinomatous infiltration of lymphatics

CCC 700 6

Critical Care


Chris is an Intensivist and ECMO specialist at the Alfred ICU in Melbourne. He is also a Clinical Adjunct Associate Professor at Monash University. He is a co-founder of the Australia and New Zealand Clinician Educator Network (ANZCEN) and is the Lead for the ANZCEN Clinician Educator Incubator programme. He is on the Board of Directors for the Intensive Care Foundation and is a First Part Examiner for the College of Intensive Care Medicine. He is an internationally recognised Clinician Educator with a passion for helping clinicians learn and for improving the clinical performance of individuals and collectives.

After finishing his medical degree at the University of Auckland, he continued post-graduate training in New Zealand as well as Australia’s Northern Territory, Perth and Melbourne. He has completed fellowship training in both intensive care medicine and emergency medicine, as well as post-graduate training in biochemistry, clinical toxicology, clinical epidemiology, and health professional education.

He is actively involved in in using translational simulation to improve patient care and the design of processes and systems at Alfred Health. He coordinates the Alfred ICU’s education and simulation programmes and runs the unit’s education website, INTENSIVE.  He created the ‘Critically Ill Airway’ course and teaches on numerous courses around the world. He is one of the founders of the FOAM movement (Free Open-Access Medical education) and is co-creator of, the RAGE podcast, the Resuscitology course, and the SMACC conference.

His one great achievement is being the father of three amazing children.

On Twitter, he is @precordialthump.

| INTENSIVE | RAGE | Resuscitology | SMACC

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