DEFINITION
- Defect of the backbone and spinal cord
- MMC is the most serious type of spina bifida; spinal cord and meninges push out and create a sac in baby’s back
- Associated with significant damage to spinal cord
- Can leave nervous system vulnerable to life-threatening infection
MANAGEMENT
Antenatal diagnosis
- Refer to neurosurgery team
- Offer mother appointment with neurosurgeon before the birth
Post-delivery
Neonatal management in local unit:
- Systemic management: as per local unit guideline
- First line antibiotics: see Infection in first 72 hours of life guideline
- Give vitamin K
- Nurse prone/lateral, irrespective of gestation and ventilator status
- Baseline cranial ultrasound
- Occipital frontal circumference (OFC) daily before transfer
Specific MMC management
- Open MMC
- surgical closure recommended in first 24–48 hr
- transfer to appropriate surgical unit ≤24 hr (providing condition stable)
- if flap closure required neurosurgeon to refer to plastic surgeon
- Closed MMC
- treat as elective surgery
- Protect exposed meninges until surgical closure performed. Immediately after delivery cover lesion with non-adherent silicone dressing e.g. Mepitel®, followed by sodium chloride soaked gauze. Cover with cling film
- do not place gauze in direct contact with exposed meninges – can cause tearing and leaking of CSF as gauze dries out and sticks to meninges
- if gauze becomes dry, moisten with sodium chloride, keeping Mepitel® in place
- if baby nursed in incubator, adequately soak gauze and check 4-hrly
- if gauze becomes soiled with faeces or urine, change immediately
- nurse baby prone/lateral
- do not dress baby – may cause injury to lesion
- If evidence of hydrocephalus, cerebral spinal fluid (CSF) diversion will be considered at time of closure
- Avoid contact with products containing latex; high risk (25–65%) of developing latex sensitisation and allergy
- complete red allergy band with ‘latex precautions’ and place sign above bed
- inform theatres of latex precautions at time of booking
- Risk of hydrocephalus, daily monitoring of:
- OFC
- depth and softness of anterior fontanelle
- Document daily on centile chart:
- head circumference
- weight
- Document pre-operative administration of vitamin K and completed screening tests on neonatal checklist
PRE-OPERATIVE INVESTIGATIONS AND MANAGEMENT
- Protect lesion from soiling and contamination
- Nurse baby prone/lateral
- Apply minimal tape to skin due to sensitivity to tapes, and to prevent epidermal stripping
- Bloods for:
- FBC
- U&E
- clotting
- group and save
- Ultrasound of renal system
- MRI of head and spine at earliest opportunity as baseline (if possible pre-operatively, but do not delay surgery for imaging)
- Consider clinical photography before and after repair
- obtain consent at time of consenting for surgery
DISCHARGE
- Provide parents with wound care advice
- Advise first bath 7–10 days post-operatively (unless advised otherwise)
- if no concerns regarding wound, baby bath solution to be used
- Neurosurgical clinical nurse specialist to provide information regarding shunt malfunction
- if no shunt present, ensure parents made aware of signs and symptoms of hydrocephalus
- Liaise with health visiting team to:
- arrange regular OFC measurement
- share contact information
- ensure safe infant sleeping/SIDS guidelines taught
- Arrange follow-up appointments
- neurosurgery ward clinic: 1 week post-discharge
- named consultant clinic: ≤6–8 weeks post-discharge
- urology/urodynamics: book before discharge (including ultrasound appointment)
- Refer to community paediatrician
- Provide parents with contact details of neurosurgical clinical nurse specialist
- clinical nurse specialist to provide copy of SHINE charity booklet, with additional team names completed
- Detailed discharge summary made and given to parents
- Refer to physiotherapy service
Date updated: 2024-01-18