Pre-Procedural Fasting in Cardiac Intervention

Traditionally, patients are kept nil-per-os (NPO) or nil-by-mouth (NBM) prior to invasive cardiac procedures. There exists neither clear evidence nor guidance about the benefits of this. The investigators aim to assess if there is a reduced incidence of vasovagal complications (primary outcome) and the combined incidence of aspiration pneumonia, change in eGFR, participant satisfaction if participants are not kept fasting. This (pilot) randomised control trial will have an intervention arm allowing participants to drink clear liquids freely up to 1 hour before the procedure versus keeping them traditionally NPO. 240 patients will be randomised with 120 participants in each arm.