Several factors increase your risk of experiencing these complications. These include:
your age – the older you are, the higher the risk
whether the procedure was planned (for angina), or is emergency treatment for or after a heart attack – emergency treatment is always riskier because there's less time to plan it and the patient is already unwell
whether you have kidney disease – the contrast agent used during an angioplasty can occasionally cause further damage to the kidneys
whether more than 1 coronary artery has become blocked – this is known as multi-vessel disease
whether you have a history of serious heart disease, including heart failure
Your cardiology team can give you more information about your individual circumstances and level of risk.