SU1.3 | Basic Concepts of Perioperative Care — Summary & Reflection

KEY TAKEAWAYS

Perioperative care is the structured management of the whole surgical episode and matters more to outcome than the operation alone, because most preventable surgical harm happens around — not during — the procedure. It runs in three connected phases. The preoperative phase centres on assessment and risk reduction: ASA physical-status grading (which describes systemic disease, NOT operative difficulty, and is distinct from the Mallampati airway score), optimisation of comorbidity, informed consent, the 2-4-6-8 fasting rule (clear fluids 2 h, breast milk 4 h, formula/light meal 6 h, fatty food/meat 8 h) and planned antibiotic and VTE prophylaxis. The intraoperative phase is governed by the WHO Surgical Safety Checklist (Sign-In, Time-Out, Sign-Out) plus asepsis, normothermia and monitoring. The postoperative phase delivers multimodal analgesia, careful fluids, VTE prophylaxis, early mobilisation, nutrition and complication surveillance. ERAS bundles integrate all three to speed recovery. Throughout, perioperative care works largely by anticipating risk and by blunting the harmful excess of the metabolic response to injury.

REFLECT

Think back to a surgical patient you have clerked or seen taken to theatre. Could you place every part of their care into the correct phase — preoperative, intraoperative or postoperative — and name the purpose of each step? Were the fasting instructions the safe 2-4-6-8 rule or an outdated blanket 'nil by mouth from midnight'? Did you witness a genuine Time-Out before incision, with the whole team engaged? And in the days afterwards, how were their pain, fluids, clot risk and mobilisation managed, and what was actively watched for? Identify one perioperative step you would check or improve on your next surgical attachment, and explain how it would reduce that patient's risk.