Transoesophageal echocardiogram

A TOE usually takes about 20 minutes in the catheter lab. It can be a little uncomfortable so we'll offer you general anaesthetic or a sedative to make you sleepy. The back of your throat will be sprayed with anaesthetic to numb the area.

When you're ready, you'll be asked to lie on your side. Your consultant will then pass a flexible tube (the ultrasound sensor) through your mouth and into position. The sensor takes real-time images of your heart valves and chambers. These will show up on a screen for your consultant to analyse.

Your consultant will tell you how to prepare. It's important to let us know if you're taking any medication as you may need to stop taking it before your scan. You'll be asked to stop eating and drinking for a few hours beforehand. Like all procedures, there may be some risks and side effects involved. Your consultant will explain these to you and answer any questions you have.

Your consultant will discuss your results with you, and let you know if you need further treatment. You should be able to go home on the same day as your scan. Please arrange for someone to travel home with you. Due to the effects of sedation or anaesthetic, you won't be able to drive for the first 24 hours. Make sure you get plenty of rest during this time.

Your consultant will let you know when you can get back to your usual routine and activities. They'll also give you advice on medication, exercise, travel, diet and alcohol.