Infections in Surgical Patients: Intensive Care Unit

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Presentation transcript:

Infections in Surgical Patients: Intensive Care Unit A/Prof Peter Kruger Deputy Director Intensive Care Unit Princess Alexandra Hospital QASM November 2018

Declaration: None Relevant to this presentation Research and Educational support from Astra Zeneca Educational support and consultancy Smiths Medical

Community Acquired infection Hospital Acquired infection

4

SIRS: 2 or more of the following > 38o or < 36o > 90 beats / min > 20 / min < 32 mmHg > 12,000 / mm3 < 4,0000 / mm3 > 10 % bands Temperature Heart Rate Respiratory Rate or PaCO2 White Cell Count

Not all infection: Chest 20(6): 864 , 1992

Low BP = needs vasopressors for mean > 65mmhg Life threatening organ dysfunction caused by a dysregulated host response to infection For clinical use =  of SOFA score of 2 points or more This is associated with > 10% hospital mortality Septic Shock Low BP = needs vasopressors for mean > 65mmhg Lactate > 2 mmol/L in the absence of hypovolaemia Hospital mortality > 40 %

Not sure what happening: Could it be Sepsis ?

Treating sepsis: Early Recognition Early appropriate antibiotics (dose matters) Source control Haemodynamic stabilisation fluids / vasopressors Organ Support – I hope it helps ? Immune modulation Science vs Magic ?

Things that don’t work Glucose Stains BLOOD control Tight Supra normal oxygen Nitric Oxide Inhaled High dose Steroids Protein C Glucose control Tight Stains Albumin BLOOD TFPI TNF M Ab L-NMMA

No need to worry – looks like we are heading to the right place We are doing OK ? No need to worry – looks like we are heading to the right place

What is making the difference ?

Why would that matter ? Keep doing things that help Stop doing things that don’t Start doing things that might ADD VALUE Look at what’s COST effective Insight into which things help some but not all patients

Apart from the definition ? Why is it worse in some people ? What Antibiotics ? Drug / Dose / Regimen / Duration What Fluids ? Type / Volume / Timing What Vasopressor Agent / Target BP

Sepsis: What’s new in the ICU ? High Flow Nasal Oxygen Steroid use Fluids and Vasopressors Frailty Perhaps get out of ICU Less sure you get out of hospital MAbs – new indications and complications

High Flow Nasal Oxygen: Might saves NIV or intubation but that doesn’t mean your not sick ! May actually provide significant support Look at Flow rate not just Fi02 Complex Physiology Multiple Effects

STEROIDS: You might see Hydrocortisone used more often Particularly in Septic shock Often at a dose of 50 mg QID Faster shock resolution Perhaps less time on Mechanical ventilation Perhaps improved survival

Sepsis Resuscitation Early Antibiotics Fluids Vasopressors Review Response Vasopressors Blood Pressure Goals

Time to Antibiotics is Key

Adequacy of initial antibiotic therapy

“Bundles” of Care

Several Trials now suggest care about fluid balance could improve patient outcome Surgical post op literature Cardiac surgical literature ARDS Acute Kidney Injury U

Drugs to Increase Blood Pressure:

How do we account for this ? Frailty How do we account for this ?

Education and Research are Vital

Are large pragmatic trials the answer? Would Penicillin survive the rigours of a multicentre RCT as a treatment for sepsis Not everyone has an infection In those that do – they are not all Gram positive organisms Some people might be harmed eg. allergy What about the Dose ?

A risk with pragmatic RCT’s Diluting real effect with large trials of a not widely applied therapy ! RCT does demonstrate causal inference

New Research Tools ? “Digital Exhaust”

Wenger Et al , Annals of Int Med 2017

Could we make this do work for GOOD rather than EVIL ?

Learning not just Monitoring: Dataset Large Well structured = Major Value Accurate Confidence the data is True and Complete Data Quality a huge issue Use data to generate knowledge Less Data but more accurate maybe better The continually learning healthcare system

Don’t forget to wash your hands !

Thank You www.intensivecarefoundation.org.au