SEDATION DURING ENDOSCOPY
The most common type of anaesthetic technique used for
endoscopies is “deep sedation”.
The patient is deeply sedated but still
conscious enough to breathe spontaneously.
Sedative drugs are given
through a cannula placed in a vein in the hand or arm.
Occasionally patients may be aware of staff talking in the room but are
not uncomfortable during the procedure.
An anaesthetic spray may be used
to numb the back of the throat.
Sometimes, for instance with small children, it may be more
appropriate to employ a “general anaesthetic” technique where breathing
will be assisted and the airway protected from aspiration of gastric
contents.
A pre-operative ECG may be required for certain patients.
Close observation of the patient's vital signs occurs peri operatively.
A pulse oximeter will be used to monitor your pulse and the oxygen
saturation in your blood.
Deep sedation is generally very safe. Most serious
anaesthetic problems occur in patients who already have a pre-existing
illness or have a history of anaesthetic problems in the past.
Your anaesthetist will want to know:
-If you have fasted for your operation?
-Any adverse reactions to medications or pills?
-Any adverse reactions to previous anaesthetics?
-What medication you are taking at the moment?
-Any history of major medical problems?
-Any loose teeth, caps, crowns or dentures?
-If you are a smoker when did you last smoke?
Common side effects (1 in 50 procedures) are
bruising at the needle site, amnesia for a short time after
the procedure and nausea.
Less common side effects (1
in 100-1 in 5000) include severe vomiting, bruised or
swollen lips, damage to teeth and headaches.
Rare side effects (less than 1 in 5000)
include aspiration (contents of stomach inhaled
into lungs), severe allergic reaction and death.
Cigarette
smoking potentially increases the risks associated with
anaesthesia and it is recommended that you stop
smoking as long as possible before the procedure.
Your anaesthetist will visit you in the Endoscopy Unit
preoperative area prior to the procedure.
Bring any concerns you may have to his attention.
Precautions should be taken after sedation.
