Category: Domain 4

Therapeutic interventions / Organ support in single or multiple organ failure

Nutrition in the Intensive Care Unit

Nutrition in the Intensive Care Unit

Steve Mathieu1 Comment

A middle aged man is admitted with abdominal pain and vomiting. He has a history of alcohol excess. A CT scan shows evidence of pancreatic necrosis. Supportive care is initiated and an NGT placed for supplementary enteral nutrition. After 3 days, he is referred to ICU as his oxygen requirements have increased and he is requiring non-invasive ventilation. It is noted that he has had very large gastric aspirates. Parenteral nutrition is commenced at this point.

What is the evidence for enteral versus parenteral feed as a source of nutrition in critically ill patients?Read More »

Tracheostomy in the Intensive Care Unit

Tracheostomy in the Intensive Care Unit

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A 47-year-old male was admitted to the intensive care unit (ICU) following a high-speed motorcycle accident. He had a number of injuries including bilateral pneumothoraces, multiple spinal fractures, an open-book pelvis fracture, and a brachial plexus injury. Bilateral chest drains were inserted and external fixation of the pelvis was performed. The patient was extubated eventually at day 15 but required reintubation within 12 hours because of a poor cough and sputum retention 

What are the indications for a tracheostomy and when shout it be considered?

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Heparin Induced Thrombocytopenia

Heparin Induced Thrombocytopenia

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A 62 year old lady with a metallic aortic valve was admitted to the cardiac unit for urgent surgical repair of a severely regurgitant mitral valve. He was normally on warfarin for his metal valve. This was stopped and unfractionated heparin commenced on day 4 once his INR level had dropped below the therapeutic range. The patient’s platelet count was 147*10^9/L on admission. By day 4 it had dropped to 85*10^9/L. After heparin was started it dropped further to a nadir of 55*10^9/L on day 8.

Could this be due to heparin induced thrombocytopenia? What investigations are required and how should we treat it?
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ECMO for Respiratory Failure

ECMO for Respiratory Failure

Steve Mathieu1 Comment

A 40 year old lady was admitted under the medical team with pneumonia. She was normally well with no history of respiratory illnesses. On day two of her hospital admission she became more hypoxic necessitating continuous-positive-airway-pressure. Her condition rapidly worsened and her chest x-ray showed diffuse bilateral infiltrates. An echocardiogram demonstrated normal systolic function. She was intubated and ventilated. Despite sedation, ARDSnet ventilation, paralysis and then proning her, she remained severely hypoxaemic. A therapeutic bronchoscopy was performed prior to proning but did not improve her condition.

Should she be referred for consideration of ECMO and was is this evidence to support it’s use?

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Mannitol and Sodium Bicarbonate in Rhabdomyolysis

Mannitol and Sodium Bicarbonate in Rhabdomyolysis

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A patient with polytrauma develops compartment syndrome with an ischaemic leg 24hrs into his admission. He undergoes revascularisation and fasciotomies, but develops rhabdomyolysis and acute kidney injury with a CK that peaks at over 100,000.

Is there a role for mannitol and bicarbonate in the management of his rhabdomyolysis and AKI?Read More »

Diagnosing Ventilator Acquired Pneumonia

Diagnosing Ventilator Acquired Pneumonia

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A 65 year old woman developed a left lower lobe hospital acquired pneumonia following a elective laparoscopic procedure for which she was ventilated for 4 days. Twenty four hours post extubation, she developed hypoxic respiratory failure with bilateral patchy shadowing on chest X-ray. She was reintubated and subsequently grew Pseudomonas aeruginosa from tracheal aspirate.

How do we diagnose Ventilator Associated Pneumonia (VAP)?Read More »

Use of PEEP in ARDS

Use of PEEP in ARDS

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A young woman was admitted with respiratory failure requiring invasive ventilation. She had bilateral lobar consolidation and positive urinary pneumococcal antigen. She was ventilated with protective lung strategies but required FiO2 of between 0.8-1.0. A PEEP of 18 was set. She was ventilated for over 2 weeks, and was tracheostomised but was discharged from the ICU after 3 weeks.

How is PEEP utilised in the ventilatory strategies in the management of Adult Respiratory Distress Syndrome?Read More »

Pentoxifylline in Alcoholic Hepatitis

Pentoxifylline in Alcoholic Hepatitis

ICM Case Summaries1 Comment

A 28 year old male presented to the Emergency Department with an upper gastrointestinal bleed. This was managed  with resuscitation and endoscopic diathermy and adrenaline injection This was his first presentation to secondary care with complications from his significant alcohol intake. He reported drinking at least 50 units of alcohol per week. Ultrasound examination demonstrated an enlarged liver with changes consistent with steatosis. On day 3 of his admission, he became tachycardic, tachypnoeic and increasingly lethargic. Examination revealed jaundice, bi-basal lung crepitations and mild confusion. Investigation confirmed an acute hepatitis by blood chemistry and repeat ultrasound. In the absence of any other cause, a diagnosis of acute alcoholic hepatitis was considered.

In patients with acute alcoholic hepatitis, does pentoxifylline reduce mortality?Read More »

Statins for Subarachnoid Haemorrhage

Statins for Subarachnoid Haemorrhage

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A 63 yr old woman collapsed at home and was brought into ED with a GCS of 3/15. She was a known hypertensive and hypercholesterolaemic. CT scan revealed a Fisher grade 3 subarachnoid haemorrhage. A ruptured middle cerebral artery was secured 24 hours later. She extubated on day 3 with a GCS of 13, but dropped her GCS to 10 on day 5 and was treated for vasospasm, which included continuing the nimodipine and simvastatin from her admission.

What is the evidence for ‘statins’ for the prevention of Vasospasm in Aneurysmal Subarachnoid Haemorrhage?Read More »

Massive Pulmonary Embolism

Massive Pulmonary Embolism

ICM Case Summaries1 Comment

A 48 year old lady was admitted to critical care whilst suffering from sepsis secondary to severe cellulitis of her leg. She was obese with a BMI of 38 and was managed with insulin and oral anti-hyperglycaemics for type 2 diabetes mellitus. A doppler scan was unable to exclude a DVT. She had a further deterioration 30 hours later. Her sinus tachycardia accelerated to 130 bpm, along with a drop in blood pressure to 100/40. Arterial blood gas demonstrated an increasing A-a gradient as his FiO2 increased. Although such changes can occur in sepsis, the acute onset led to concerns regarding venous thromboembolism and pulmonary emboli.

What are the options for prevention of venous thromboembolism and pulmonary embolism?
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