Hospital-acquired sepsis or septic shock in neonates and children younger than 2 months who may have meningitis

For term and preterm neonates with late onset sepsis or septic shock (occurring after 72 hours of birth) who have been in hospital since birth and may have meningitis (ie not excluded by lumbar puncture), or children younger than 2 months who have hospital-acquired sepsis or septic shock and may have meningitis, as a 2-drug regimen, use:

1cefotaxime 50 mg/kg intravenously; for dosing frequency, see Cefotaxime intravenous dosing for neonates and children younger than 2 months with sepsis or septic shock cefotaxime

OR

1ceftriaxone (child 1 month or older) 50 mg/kg intravenously, 12-hourly1 ceftriaxone

PLUS with either of the above regimens

vancomycin intravenously; for initial dosing, see Intermittent vancomycin dosing in young infants. vancomycin

Table 1. Cefotaxime intravenous dosing for neonates and children younger than 2 months with sepsis or septic shock

cefotaxime intravenous dose = 50 mg/kg

postmenstrual age [NB1]

postnatal agedosing frequency

younger than 30 weeks

28 days or younger

12-hourly

29 days or older

8-hourly

30 to younger than 37 weeks

14 days or younger

12-hourly

15 days or older

8-hourly

37 weeks and older

7 days or younger

8-hourly

8 days or older

6-hourly

child 1 month to younger than 2 months

-

6-hourly

Note:

NB1: postmenstrual age = gestational age + postnatal age

In neonates and children younger than 2 months suspected to have HSV infection, or neonates whose birthing parent had active genital HSV infection at birth, add aciclovir to the above regimens. Use:

aciclovir 20 mg/kg intravenously, 8-hourly2. aciclovir

If HSV infection is confirmed, see Neonatal herpes simplex infection for subsequent management.

For more information on the management of neonates suspected to have HSV infection, or whose birthing parent had active genital HSV infection at birth, see the Australasian Society for Infectious Diseases (ASID) Management of Perinatal Infections guidelines.

If intravenous (or intraosseous) access cannot be rapidly established (eg within 15 minutes), the initial dose of antimicrobial therapy can be administered intramuscularly. Ceftriaxone is preferred over cefotaxime when administered intramuscularly due to its long half-life. Cefotaxime should be given rather than ceftriaxone for neonates and children younger than 2 months receiving intravenous calcium solutions (including parenteral nutrition, compound sodium lactate [Hartmann solution], lactated Ringer solution), or those with jaundice, hypoalbuminaemia, acidosis, unconjugated hyperbilirubinaemia or impaired bilirubin binding. For more information, see Practical information on using beta lactams: cephalosporins.

If intravenous (or intraosseous) access cannot be rapidly established in term and preterm neonates, and children younger than 2 months, use:

1ceftriaxone 50 mg/kg intramuscularly, as a single dose while establishing intravenous (or intraosseous) access ceftriaxone

OR

2cefotaxime 50 mg/kg intramuscularly, as a single dose while establishing intravenous (or intraosseous) access. cefotaxime

Vancomycin and aciclovir cannot be administered intramuscularly. If the neonate or child younger than 2 months is at increased risk of MRSA infection (eg exposed to a caregiver colonised with MRSA) or if HSV infection is suspected, seek expert advice.

Establish intravenous (or intraosseous) access before the next scheduled antimicrobial dose. There are few data on absorption and distribution of intramuscular antimicrobials in sepsis or septic shock. If switching from intramuscular ceftriaxone to intravenous cefotaxime, administer the first cefotaxime dose 12 hours after the intramuscular ceftriaxone dose.

1 Ceftriaxone may be a suitable alternative to cefotaxime, in term neonates who are not receiving intravenous calcium solutions (eg parenteral nutrition, compound sodium lactate [Hartmann solution], lactated Ringer solution) and do not have jaundice, hypoalbuminaemia, acidosis, unconjugated hyperbilirubinaemia, or impaired bilirubin binding – seek expert advice and see Practical information on using beta lactams: cephalosporins.Return
2 In neonates younger than 30 weeks corrected gestational age (corrected gestational age = postnatal age [time since birth] – weeks of prematurity), consider 12-hourly dosing if HSV infection has not been confirmed.Return