Summary
Maintaining stable blood pressure during surgery is a key responsibility of anaesthetists. Peri-operative omission and reintroduction of antihypertensive drugs, general anaesthesia, neuraxial and regional techniques can all cause significant fluctuations in blood pressure, particularly in patients with hypertension. Since the first edition of this guideline there has been more literature regarding peri-operative management, but some areas still lack standardisation.
We make recommendations on the management of blood pressure in the peri-operative period (from time of decision to operate until 30 days after surgery) for adults having planned surgery (excluding cardiothoracic, obstetric and endocrine surgeries). These include when and how to measure blood pressure; blood pressure thresholds for postponement of planned surgery; and the peri-operative management of blood pressure. Key recommendations include: secondary care peri-operative teams should accept patient referrals that document a clinic blood pressure measurement < 160/100 mmHg, or an ambulatory or home blood pressure measurement < 155/95 mmHg in the past 12 months; and patients who attend the pre-operative assessment clinic without documentation of normotension in primary care may proceed to elective surgery if their clinic blood pressure measurement is < 180/120 mmHg or ambulatory or home blood pressure measurement < 175/115 mmHg.