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Procedural Sedation and Analgesia (Children)

Procedural Sedation and Analgesia (Children) - What it is

Our hospital has adopted procedural sedation as a standard protocol for young patients who are undergoing procedures that require the child to keep still. This practice is found to be a very safe process.

What is Procedural Sedation Analgesia (PSA)?

In procedural sedation, medicines are used to sedate children who need to undergo short and/or painful hospital procedures. These include:

  • Bone marrow aspiration
  • Cardiac scan
  • Central line insertion
  • Chest tube insertion
  • Chest tube removal
  • Diagnostic imaging scans such as CT scan, MRI and Nuclear Medicine
  • Electroencephalogram (EEG)
  • Extensive dressing
  • Hearing test
  • K wire removal
  • Long line insertion
  • Simple manipulation and reduction of limbs
  • Spinal fluid aspiration

The sedation may be given orally or via injection. Many outpatients procedures can be done under PSA, hence your child may not need not be admitted. In painful procedures, analgesic (painkillers) and/or local anaesthetic medications are used to relieve pain. After the procedure, the pain is relieved by oral medication (eg. Paracetamol). He/she will be monitored closely for breathing and other functions throughout the procedure.

Commonly used drugs are:

  • Chloral Hydrate
  • Ketamine
  • Midazolam

Are there any side effects?

Side effects of the medicines used for PSA include:

  • Nausea and vomiting
  • Rashes
  • Diarrhoea
  • Agitation or euphoria
  • Respiratory depression
  • Hypotension

Most side effects are self-limiting and usually resolve after one to two hours, or after treatment.

It is rare for the child to develop a bad allergic reaction to the medicines used in PSA such as sudden tightness of voice-box affecting breathing. Appropriate treatment will be given to minimise side effects.

Is fasting required?

Yes. A minimum of three hours of fasting is necessary before the appointment time, or as instructed by the doctor or nurse.

Fasting instructions:
Please ensure that the last meal is light: plain milk (maximum one cup) with plain biscuits or plain bread (maximum two pieces). Heavy oily meals can cause child to vomit and the food can go into the lungs causing life-threatening complications. This is because heavy oily meals tend to stay longer in the stomach and increase the risk of vomiting.

Who is not suitable for PSA?
  • Patients with known allergy to the medicine used for PSA
  • Patients who have taken a meal less than three hours before PSA
  • Patients with an ongoing respiratory tract infection
  • Patients with unstable medical disease

If my child is sick with fever, flu, running nose, can he/she undergo sedation?

No. It is advisable to reschedule another appointment in the event of acute illness after seven days of the appointment.

Home advice after PSA

You may want to take note of the following:

  • Your child may fall asleep during transit. This is normal. However, your child will be able to come around when you wake him/her up.
  • Your child may resume his normal diet after he/she is fully recovered from sedation.
  • Observe your child's activities. The effects of the sedation may last up to a few hours.

Parents should:
  • Supervise your child at all times for the next four hours after procedure.

On the next day:
  • Avoid the following activities such as riding a bicycle, scooter or skateboard.
  • Avoid giving your child medications which cause drowsiness.
  • Do supervise your child when he/she is placed in the car seat. The motion of his/her head flopping forward during the car journey may cause the tongue to obstruct his/her breathing.

You should bring your child to the Children's Emergency at Children's Tower, Basement 1 in the following situations:

  • If your child remains drowsy or feels unwell.
  • In severe pain despite taking painkillers

Useful information

For outpatient appointments, please arrive 45 minutes before the procedure time for:

  • Registration
  • Administration of sedation

As consent may be required, a parent/legal guardian should accompany the child for the procedure. Bring along a favourite toy/pillow and adequate milk powder and diapers.

Procedural Sedation and Analgesia (Children) - Symptoms

Procedural Sedation and Analgesia (Children) - How to prevent?

Procedural Sedation and Analgesia (Children) - Causes and Risk Factors

Procedural Sedation and Analgesia (Children) - Diagnosis

Procedural Sedation and Analgesia (Children) - Treatments

Procedural Sedation and Analgesia (Children) - Preparing for surgery

Procedural Sedation and Analgesia (Children) - Post-surgery care

Procedural Sedation and Analgesia (Children) - Other Information

The information provided is not intended as medical advice. Terms of use. Information provided by SingHealth

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