Epidural Anaesthetic

What is an epidural anaesthetic?

An epidural anaesthetic (or epidural) involves injecting local anaesthetics and other painkillers into the epidural space (an area near your spinal cord). This numbs your nerves to give pain relief in certain areas of your body. An epidural can be used either on its own while you are awake, or together with sedation or a general anaesthetic. An epidural can also be used after an operation or procedure to give effective pain relief.

How does an epidural work?

A fine catheter (tube) is inserted in the epidural space, near your spinal cord. Local anaesthetics and other painkillers are injected down the catheter into the epidural space to numb your nerves.

The epidural can be maintained by giving extra doses or by giving a continuous low dose (an infusion).

How is an epidural given?

To insert the epidural catheter, your anaesthetist will ask you to either sit up or lie on your side.

Your anaesthetist will insert the epidural catheter using a needle.

Your anaesthetist will inject a small amount of anaesthetic through the catheter to check the position. Once they have completed this check, they will give more of the anaesthetic until the epidural is working properly.

The effect of the epidural can be varied by changing the type and amount of medication given. The more anaesthetic you are given, the more numb you will be.

How soon will I recover?

An epidural can affect your reactions. Do not drive, operate machinery or do any potentially dangerous activities (this includes cooking) until you have fully recovered feeling, movement and co-ordination.

What complications can happen?

There is a risk of significant permanent harm from an epidural.

Failure of the epidural

Low blood pressure

Headache

Respiratory depression, where your breathing slows down too much

Itching

Difficulty passing urine

Temporary leg weakness

Backache

Seizures

Unexpected high block, if the local anaesthetic spreads beyond the intended area

Infection around your spine

Cardiovascular collapse (where your heart stops)

Nerve damage

Blood clot around your spine

Damage to nerves supplying your bladder and bowel

Paralysis or death

Late complications

A complication may happen after the epidural has been removed.

Pus, redness, tenderness or pain

A high temperature

Feeling unwell

Discomfort when in a bright room or sunlight

Neck stiffness

Difficulty moving or feeling your legs

Difficulty passing urine

Bowel incontinence

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