Fasting or Non-fasting Before Cardiac Catheterization

The investigators hypothesise that there is no increased risk of peri-procedural complications, accompanied by improved patient satisfaction among patients allowed to eat up to the point of coronary angiography/angioplasty compared to patients, kept nil by mouth. Therefore, the investigators aim to change the practice of fasting for all patients before elective catheterization procedures. Consented patients will be randomised in a 1:1 ratio to either fasting (standard hospital fasting policy) or non-fasting (allowed to eat and drink freely up to the point of transfer to the Catheter Laboratory). Primary End Point will composite peri-procedural nausea, vomiting, pre-procedural hypotension, pre-procedural hypoglycemia, intra-procedural emergency endotracheal intubation and aspiration pneumonia. This will be calculated as the number of patients experiencing at least one event. Secondary end-points will include patient satisfaction questionnaire and the individual outcomes assessed in the primary end point.