3-14. Sepsis

SJH Theatres and Anaesthetics
NHS Lothian

Objectives

Severe sepsis (hypotension persisting after initial fluid challenge of 30ml.kg-1 or blood lactate concentration ≥ 4mmol.l-1 if infection most likely underlying cause) or septic shock (sepsis with end organ dysfunction).

START

❶ Call for help and inform theatre team of problem.

❷ Increase FiO2, consider reducing anaesthetic agent and intubate patient.

❸ Give crystalloid i.v.:

  • Adult: at least 30 ml.kg-1 (Box A, Box B).
  • Child: at least 20 ml.kg-1 (Box C).

❹ Take bloods including blood gas, lactate, FBC, U&Es, coagulation and cultures.

❺ Give empiric intravenous antimicrobials within 1 h (seek microbiology advice).

❻ Consider whether indwelling devices could have caused a septic shower.

❼ If patient is not improving proceed to the next steps.

❽ Insert central and arterial access lines. Check serial lactates.

❾ Start noradrenaline to achieve mean arterial pressure ≥ 65 mmHg (Box D).

❿ Insert urinary catheter and record hourly urine output.

⓫ Consider monitoring cardiac output to further aid fluid and vasopressor therapy.

⓬ Identify source of sepsis, consider source control and send source cultures if possible (eg. surgical site, urine, broncho-alveolar lavage).

⓭ Discuss whether appropriate to abandon or limit surgery.

⓮ Discuss ongoing management plan with intensive care team.

 

Box A: FLUID THERAPY

  • Crystalloids initial fluid of choice in severe sepsis and septic shock. 
  • Greater than 30 ml.kg-1 of crystalloid may be required in some patients. 
  • Continue fluid challenge if haemodynamic improvement. 
  • Hydroxyethyl starches should not be used. 

Box B: SET PHYSIOLOGICAL GOALS

  • Central venous pressure. 
  • Mean arterial pressure. 
  • Urine output. 
  • Central venous (superior vena cava) or mixed venous saturation. 

Box C: PAEDIATRIC CONSIDERATIONS

  • Goals: capillary refill time (CRT) ≤ 2 secs, normal BP for age, normal peripheral pulses, warm extremities, urine >1 ml.kg-1.hr-1, SCVO2 >70%. 
  • Give 20 ml.kg-1 initially up to or over 60 ml.kg-1 fluid until goals or unless rales or hepatomegaly develops. 
  • Begin peripheral inotropic support pending central/intraosseous access. 
  • If warm shock (↑HR, ↓BP) start noradrenaline. 
  • If cold shock (↑HR, ↓CRT) start dopamine and, if resistant, adrenaline. 

Box D: DRUG THERAPY

  • Noradrenaline (NA) as first choice vasopressor. 
  • Adrenaline added to noradrenaline when additional agent needed. 
  • Vasopressin 0.03 units.min-1 added to ↑MAP or ↓noradrenaline need. 
  • Dobutamine up to 20 µg.kg-1.min-1 if evidence of myocardial dysfunction or ongoing signs of hypoperfusion despite adequate MAP and adequate intravascular volume. 
  • Hydrocortisone if unable to restore haemodynamic stability. 

 

Editorial Information

Last reviewed: 31/01/2018

Author(s): The Association Of Anaesthetists of Great Britain & Ireland 2018. www.aagbi.org/qrh Subject to Creative Commons license CC BY-NC-SA 4.0. You may distribute original version or adapt for yourself and distribute with acknowledgement of source. You may not use for commercial purposes. Visit website for details. The guidelines in this handbook are not intended to be standards of medical care. The ultimate judgement with regard to a particular clinical procedure or treatment plan must be made by the clinician in the light of the clinical data presented and the diagnostic and treatment options available..

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