PAEDIATRIC ALTERED CONSCIOUS LEVEL GUIDELINE

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DELPHI PROCESS

 

 

Round two

 

11. Raised intracranial pressure

 

11c) Children with a clinical diagnosis of raised intracranial pressure should have the following treatments to prevent coning:

 

(iii) Sedate, intubate and ventilate the patient to maintain the PaCO2 between 4.0 and 4.5 kPa

 

 

Position

Comment

Neuro

Hyperventialtion may give rise to ischaemia – I think it is more important to prevent it rising above 4.5 kPa

PICU

ALTHOUGH THAT IS MILD HYPOCARBIA-CURRENT RECOMMENDATIONS ARE NORMOCARBIA (4.5-5.2)

Metab

Only uncertainty is the PaCO2 aim. Too low is harmful. What is the evidence base for kPa 4-4.5 in non traumatic raised ICP?

Paed ED

PCO2 to normality

 

Agreed

Neither agree nor disagree

Disagreed

100%

 

 

 

 

(vi) Administer a dose of 1g / kg of intravenous mannitol

 

 

 

Position

Comment

Paed

Would use 0.5 g/kg

Metab

Answer reflects more on my practice, than evidence base for its effectiveness

Paed ED

after D/W neurosurgeon

Paed

I am a little uneasy about this dose and would if possible discuss with neurosurgeons

PICU

0.25 g/kg is enough.

Paed

Only after DW neurosurgeons

Metab

– in addition to iii) might be crucial also to infuse this – see vii) also

 

Agreed

Neither agree nor disagree

Disagreed

56%

19%

25%

 

(vii) Administer a dose of 1g / kg of intravenous mannitol with furosemide 1mg / kg

 

 

Position

Comment

Paed

Don’t know of any evidence that furosemide adds anything when used with such a powerful diuretic

PICU

0.25 g/kg is enough.

Neuro S

This combination of frusemide with mannitol risks dehydration unless give fluid bolus with it

ED

Have never used furosemide in raised ICP

PICU

Both not required initially

Metab

in more critical situations, use this as an alternative to vi); vi) & vii) may be used where features of coning have begun, or are progressing inspite of management shown at iii)

 

Agreed

Neither agree nor disagree

Disagreed

21%

29%

50%

 

 

(vi) Administer a dose of 0.5 g / kg of intravenous mannitol

 

 

Position

Comment

Neuro

0.25 g/kg may also work

Paed ED

After D/W neurosurgeon

PICU

0.25 g/kg is enough.

Neuro S

Not enough

Paed

I’d look the dose up

PICU

1g/kg first

Metab

APLS favours 0.5-1.0 g/ kg. There may be concern re too large a dose (ie 1.0g/ kg), but our main concern should be for the brain not the kidneys.

 

Agreed

Neither agree nor disagree

Disagreed

59%

35%

6%

 

 

(vii) Administer a dose of 0.5 g / kg of intravenous mannitol with furosemide 1 mg / kg

 

 

Position

Comment

Paed

Again, ? evidence for furosemide adding anything

PICU

0.25 g/kg is enough.

Neuro S

Not enough

ED

Have never used furosemide in raised ICP

PICU

Just stick to 1g/kg

Metab

APLS favours 0.5-1.0 g/ kg. There may be concern re too large a dose (ie 1.0g/ kg), but our main concern should be for the brain not the kidneys.

 

Agreed

Neither agree nor disagree

Disagreed

23%

46%

31%

 

 

(ix) Maintenance fluid should be titrated to the clinical condition of the patient aiming to administer at 100% of normal

 

 

Position

Comment

Neuro

It is important to ensure adequate blood pressure and cerebral perfusion pressure. I would only reduce fluids if there are signs of herniation,

PICU

SHOULD BE NORMAL SALINE

Neuro

Available evidence suggests better to resuscitate and then treat oedema

Paed

I’m in the 70% camp on this one as it feels like a safer starting point for the inexperienced and reminds them to think about cerebral oedema  carefully

PICU

What is normal when the ADH is high – there is quite a literature on this topic from the Toronto group.

Endo

Depends also on cause doesn’t it? In sepsis increased leaky vessels and oedema, but need to support circulation therefore not sure you can do a simple statement

Metab

in spite a large exp with RS years ago, I am unsure of the correct/ better view here; as you say the comparison has not been tested. The US specialists favour 100%, whereas we in UK 70-75 %. If a child is shocked or dehydrated these must be corrected & this is obvious. Thereafter it is essential to avoid over-infusion, and each and every source of fluid being given to the patient must be thought of and quantitated. Perhaps a compromise is valid today with a more aggressive approach to management, with earlier and better imaging, etc. This is an aspect that requires expert input and ought not to be/ is not delegated to juniors!

 

Agreed

Neither agree nor disagree

Disagreed

40%

40%

20%

 

 

(x) Maintenance fluid should be titrated to the clinical condition of the patient aiming to restrict to 70% of normal

 

 

Position

Comment

Paed

I prefer the wording in (xi) below

Neuro S

This is ARCHAIC! and risks compromising cerebral perfusion

PICU

Start at 70%, wait for 1-2 hours, get chemistry, monitor urine output, send osmols, paired monitor CVP then decide

 

Agreed

Neither agree nor disagree

Disagreed

40%

35%

25%

 

 

(xi) Maintenance fluid should be titrated to the clinical condition of the patient but generally is administered at X % of normal

 

50

55

60

65

70

75

80

85

90

95

100

 

 

 

 

 

2

8

2

1

1

 

 

7

 

AVERAGE = 81 %

 

Position

Comment

Paed

This wording is better, ? could be strengthened further by changing to ‘generally is ‘commenced’ at 70% normal. This reinforces the idea that later titration might be necessary. Consider adding further detail explaining the conflict between 70% and 100% in the narrative of the final guideline