Anaesthesia
Introduction
Anaesthesia means "loss of sensation". Medications that cause anaesthesia are called anaesthetics.
Anaesthetics are used during tests and surgical operations to numb sensation in certain areas of the body or induce sleep.
This prevents pain and discomfort, and enables a wide range of medical procedures to be carried out.
Local anaesthetics and general anaesthetics are two commonly used types of anaesthetics.
A Local anaesthetic is often used during minor procedures where a small area of the body is numbed and you remain fully conscious. A general anaesthetic is often used for more serious operations where you're totally unconscious and unaware of the procedure.
Medically Reviewed by a doctor on 30 Nov 2016
Introduction
Find out about different types of anaesthetics, how they work, and the potential side effects. Also, read about the role of the anaesthetist.
How anaesthetics work
Anaesthetics work by stopping the nerve signals that keep you awake and aware from reaching your brain. During this state of induced sleep, procedures can be carried out without you feeling anything.
Types of anaesthesia
As well as local and general anaesthetic, there are a number of other types of anaesthesia. Unlike general anaesthetic, these don't make you unconscious; they stop you feeling pain in a particular ar
How anaesthetics are given
An anaestheticcan be given in a number of ways: as an ointment, spray or drops as an injection into a vein as a gas you breathe in
Anaesthetists
Anaesthetists are doctors who have received specialist training in anaesthesia. They'llgive youyour anaesthetic and be responsible for your safety and wellbeing during your procedure. Before the proc
Side effects
Anaesthetics consist of a number of medications that can cause side effects in some people. Your anaesthetist will tell you about any side effects you may experience after having a specific type of an
Risks and complications
In recent years, having anaesthesia has become very safe. Advances in equipment, medication and training mean serious problems are rare. However, as with any type of surgery or medical procedure, the
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