Cardiac catheterisation

In cardiac catheterisation, a specialist guides thin tubes through blood vessels to the heart. The tubes can measure blood pressure inside the heart and take samples. Staff may give contrast, a substance that makes blood flow easier to see on the pictures. A catheter procedure can also treat some problems.

It may use a balloon, a closure device or a stent, a small support that holds a blood vessel open. Ask whether the plan is to gather information, give treatment or both. It is not the same as open-heart surgery.

Children often have a general anaesthetic, medicines that keep them unconscious for the procedure. The approach depends on the child and what is being done. The team should explain the intended benefit, alternatives and important risks, such as bleeding, blocked blood flow or reactions to contrast. Afterwards, staff monitor recovery and the place where the catheter entered.

Instructions about moving, looking after the wound and going home depend on what was done.

Ask the specialist to describe the plan in ordinary words, including what might make them change course during the procedure. Bring your questions about anaesthesia separately from questions about the heart treatment. Tell staff about your child’s previous difficult experiences so preparation can be adapted.

Before going home, ask for clear advice on what to watch for, who to call and when normal activities can resume. Keep the procedure report or summary for future care and confirm whether any new medicine or follow-up appointment is needed.