The Perioperative Approach

Pre-operative assessment

  • Standard investigations: ECG, CXR, Bloods
  • Risk stratification, based on
    • Exercise tolerance (METs – need at least 4 to tolerate GA)
    • History of recent cardiac ischaemia
    • Stability of cardiac symptoms
  • HIGH risk patients
    • Exercise stress test (EST) – must pass before surgery
      • IF FAILED –> Sestamibi scan to check for reversible ischaemia (& then revascularise pre-op)
    • IF EST failed, and MIBI negative, cardiac risks make them a poor candidate for surgery – explore conservative options
  • Pre-operative Echo (TTE) & optimisation of LV function

Pre-operative management

  • Control HTn
  • Control arrhythmias
  • Management of antiplatelet agents for drug-eluting stents
    • Elective surgery: delay 4-6 weeks after bare metal stent insertion
      • If possible, delay a full 180 days
      • DEFINITELY delay 180 days after drug-eluting stent

Intraoperative management

  • Invasive monitoring as a precaution (art line, PAC etc)
  • Maintain normotension
  • Consider epidural anaesthesia

Post-operative management

  • ICU/HDU monitoring post-op
  • consider delayed extubation
  • post-operative support with vasopressors / inotropes
  • Post-operative complication monitoring and management specific to the condition