General anesthetics

An anesthetic is a drug or agent that produces a complete or partial loss of feeling.

There are three kinds of anesthetic: general, regional and local#

When a patient undergoes a general anesthetic, they lose sensation and become unconscious.

General anesthetics can be given in a number of ways. One method is by injecting drugs into your veins, and another method is by anesthetic gas given by inhalation through a mask. Sometimes, injections and the anesthetic mask can be used at the same time.

Your anesthetist will visit you before you go to theater to assess if you are fit enough for surgery, and to explain the administration of a general anesthetic. You need to discuss a range of issues with your anesthetist including: Drugs you may be taking, including cigarettes and alcohol. Other issues which your doctor or nursing staff may discuss with you include: usually you will be asked not to drink or eat for several hours before the operation.

– you may need an enema or other pre-operative procedures. A couple of hours prior to surgery, you may be given a ‘pre-med’, which may be an injection or tablets that make you sleepy and relaxed.

These drugs also help to dry up excessive saliva#

You are then wheeled into the operating theater#

A qualified anesthetist, who is a medical doctor with specialist training in anesthetics, administers the general anesthetic. The anesthetist may administer the anesthetic intravenously or by gas mask, or both.

After a few seconds, you feel sleepy then lose consciousness#

Next, the anesthetist inserts a small tube connected to a ventilator into your airway. The anesthetist controls the length of time you are asleep, and constantly monitors your pulse, breathing and blood pressure.

If necessary, your anesthetist will give you intravenous fluids before, during and after surgery.

Once the surgery is over, you may have other drugs injected that will reverse the effect of the anesthetic and any other drugs used during the operation (such as muscle relaxant).

When the anesthetist is satisfied with your breathing and blood circulation, you are wheeled into the recovery room where specialized staff members look after you.

After surgery, you can expect that hospital staff will: Record your breathing, pulse and blood pressure.

Note your level of consciousness, as well as any special observations required for your type of surgery.

Record all intravenous fluids you are given#

Depending on the type of surgery you’ve had, you may find that when you wake up you: Have a tube coming from your wound site to drain excess fluid. Had a catheter inserted into your bladder while you are in theater and your urine output is being noted. Are encouraged to do deep breathing exercises and move your legs at least hourly following surgery, if you can.

Are given pain relief medication#

Feel drowsy and nauseous, with a headache and sore throat.

These side effects pass relatively quickly#

Some of the rare but possible side effects from general anesthetic include:

• Quadriplegia. Be guided by your doctor or anesthetist
• but general suggestions include
• If you are permitted to leave hospital within hours of the surgery
• don’t try to drive home because your coordination may be affected by the medication

Ask a relative or friend to pick you up or take a taxi.

Don’t drive a car within 24 hours after the procedure. Take it easy for the next day or two.

Rest at home#

Remember it may take several days before you feel back to normal. Avoid taking herbal medicines in the days or weeks following surgery.

Ask your doctor for further information#

Complications from general anesthetic are rare#

It is estimated that around one in every 10,000 people undergoing general anesthetic die from an unforeseen complication, such as an allergic reaction or a heart attack. Depending on the type of surgery, alternatives to general anesthetic can include: – or ‘nerve block’.

For example, a woman giving birth by cesarean section may have an epidural.

This is an injection into the spine that numbs the body from the waist down. – anesthetic is injected into the immediate area to be operated on.

For example, your dentist may inject local anesthetic into your gum before removing a tooth.

An anesthetic is a drug or agent that produces a complete or partial loss of feeling.

There are three kinds of anesthetic: general, regional and local#

When a patient undergoes a general anesthetic, they lose sensation and become unconscious.

Issues to consider with general anesthetics Medical history, including any pre-existing conditions, such as diabetes or heart problems Surgical history Allergies, for example, to drugs or foods Eating and drinking – Shaving you may need hair shaved from the operation site, Other procedures Administration of general anesthetic Following surgery with general anesthetic Complications with general anesthetics Injury at the injection site Infection Breathing problems Short term damage to nerves Allergic reaction, for example, asthma attack Having sensation (and pain) during the operation Damage to the mouth, teeth, lips or tongue Damage to vocal cords or larynx Lung damage Heart attack Brain damage Stroke Kidney failure Liver failure Paraplegia Taking care of yourself at home Long term outlook after a general anesthetic Regional and local anesthetics Regional anesthetic Local anesthetic

Where to get help#