Gestational Age Classification
| Category | Gestational Age | Birth Weight Term | Key Risks |
|---|
| Extremely Preterm | < 28 weeks | Usually <1000g (ELBW) | Highest risk all complications; periviability <24w |
| Very Preterm | 28 – 31+6 weeks | Usually <1500g (VLBW) | RDS, IVH, NEC, ROP, BPD significant |
| Moderate Preterm | 32 – 33+6 weeks | 1500–2000g approx. | RDS less severe, temperature instability |
| Late Preterm | 34 – 36+6 weeks | 2000–2500g approx. | Feeding difficulties, jaundice, apnoea, sepsis |
Ballard Score — Gestational Age Estimation
Used when GA uncertain. New Ballard Score (NBS) includes neuromuscular and physical maturity criteria.
Neuromuscular (6 criteria)
- Posture (0–4): flexion increases with maturity
- Square window (wrist): angle decreases (90°→0°)
- Arm recoil: prompt full recoil = mature
- Popliteal angle: decreases with maturity
- Scarf sign: elbow less likely to cross midline
- Heel to ear: resistance increases with maturity
Physical (6 criteria)
- Skin: sticky/transparent → thick/cracking
- Lanugo: none → abundant → thinning → absent
- Plantar surface: no creases → full creases
- Breast: barely perceptible → full areola >10mm
- Eye/ear: lids fused → cartilage/stiff
- Genitals: immature → fully formed
Score range: -10 to 50 | Total score maps to GA 20–44 weeks (add 2 = weeks GA approx.)
Periviability — 22–23 Weeks
Threshold of viability: individualised decision-making required. Involve parents, senior neonatology, and ethics team.
- 22 weeks: survival 5–15%; intensive care controversial; many units — comfort care default unless parental request after counselling
- 23 weeks: survival 25–40%; active resuscitation considered in many GCC centres
- 24 weeks: survival 55–70%; active resuscitation standard
- 25 weeks: survival >75%; aggressive care standard
Antenatal interventions before delivery
- Corticosteroids: betamethasone/dexamethasone 23–34+6 wks — accelerates lung maturity (reduces RDS, IVH, NEC mortality)
- Magnesium sulphate: <30 weeks — neuroprotection (reduces cerebral palsy risk)
- Delayed cord clamping: 30–60 seconds minimum — increases blood volume, reduces IVH and NEC
- GBS prophylaxis: IV benzylpenicillin intrapartum if indicated
Complications by Gestational Age
| Complication | <28w Risk | 28–32w Risk | 32–37w Risk | Key Nursing Action |
|---|
| Respiratory Distress Syndrome (RDS) | Very High | Moderate-High | Low | Surfactant, CPAP, SpO2 monitoring |
| Intraventricular Haemorrhage (IVH) | High (30–40%) | Moderate | Low | Head USS day 3/7/28; minimal handling |
| Periventricular Leukomalacia (PVL) | High | Moderate | Low | Avoid hypotension; head USS follow-up |
| Necrotising Enterocolitis (NEC) | High | Moderate | Low-Moderate | Breast milk feeds; abdominal monitoring |
| Retinopathy of Prematurity (ROP) | High | Moderate | Rare | Screen <31w or <1501g; O2 targets |
| Bronchopulmonary Dysplasia (BPD) | High | Moderate | Low | Volume-targeted ventilation; caffeine |
| Patent Ductus Arteriosus (PDA) | Very High | Moderate | Low | Echocardiogram; fluid restriction; indomethacin/ibuprofen/ligation |
| Sepsis (early/late onset) | High | High | Moderate | Strict hand hygiene; blood cultures; empiric antibiotics |
| Hypothermia | Very High | Moderate | Low-Moderate | Plastic wrap at birth; servo-control incubator |
| Hypoglycaemia | High | Moderate | Moderate | Early PN; monitor BGL 1-2 hrly; target >2.6 mmol/L |
SpO2 target for preterm infants: 90–95%. Avoid hyperoxia (ROP risk) and hypoxia (IVH/NEC risk). Alarm limits: low 89%, high 95%.
Surfactant Therapy — RDS Management
Natural Surfactant Preparations
- Poractant alfa (Curosurf) — most used in GCC
- Beractant (Survanta)
- Calfactant (Infasurf)
INSURE Technique
Intubate → Surfactant → Extubate to CPAP — reduces duration of mechanical ventilation and BPD risk
- Pre-medicate: atropine ± sucrose ± short-acting sedation
- Confirm ETT position: equal chest rise, CO2 colorimetry
- Administer surfactant via ETT — bolus instillation
- Extubate to nCPAP within 30–60 min if stable
LISA / MIST Techniques
- LISA (Less Invasive Surfactant Administration): thin catheter via laryngoscopy — infant on CPAP throughout
- MIST (Minimally Invasive Surfactant Treatment): vascular catheter technique
- Avoids intubation; preferred in >26 weeks GA
Repeat Dosing Criteria
- FiO2 >0.30 on CPAP or >0.30 ventilated after 6–12h
- Max 2–3 doses (preparation-dependent)
- Re-evaluate for pneumothorax before repeat
Nasal CPAP
First-line respiratory support for RDS in spontaneously breathing preterm infants.
Settings
- PEEP: 5–8 cmH2O (start 6–7 cmH2O)
- FiO2: titrate to SpO2 90–95%
- Gas flow: 5–8 L/min (device-dependent)
Interface Options
- Nasal prongs: Hudson/Fisher & Paykel — most common
- Nasal mask: good seal, less nasal trauma
- Rotate interface every 4–6 hours to prevent nasal septum trauma
- Check for pressure areas on columella and philtrum
- Hat/bonnet sizing critical — prevents dislodgement
CPAP Failure Criteria
- FiO2 >0.40–0.50 to maintain SpO2
- Increasing work of breathing / apnoea
- Respiratory acidosis: pH <7.20, pCO2 >65
- Escalate to HFNC or mechanical ventilation
High-Flow Nasal Cannula (HFNC)
- Optiflow (Fisher & Paykel) / Airvo 2 — heated humidified
- Post-extubation support: flow 4–8 L/min
- FiO2 titrated to SpO2 targets
- Non-inferior to nCPAP post-extubation >28 weeks
- Cannula prong size: <50% nasal nares diameter
- Less nasal trauma than nCPAP; easier oral access for feeds
- HFNC does NOT replace nCPAP for initial RDS in ELBW
Mechanical Ventilation
Pressure-Controlled Settings (starting)
- PIP: 16–22 cmH2O (aim chest rise, TV 4–6 ml/kg)
- PEEP: 4–6 cmH2O
- Rate: 40–60 breaths/min
- Ti: 0.25–0.35 sec
- FiO2: titrate to SpO2 90–95%
Volume-Targeted Ventilation (VTV) — PREFERRED
VTV reduces BPD, IVH, and air leak. Target tidal volume 4–6 ml/kg ideal body weight.
- VGPSVT / A/C + VG modes on Dräger / SLE ventilators
- Set maximum PIP ceiling; ventilator auto-adjusts
- Monitor for overventilation (low pCO2 = PVL risk)
Weaning
- Wean FiO2 first, then PIP/rate
- CPAP trials: extubate when rate <20–25, FiO2 <0.30
- Caffeine citrate: load 20 mg/kg PO/IV → maintenance 5–10 mg/kg/day
Bronchopulmonary Dysplasia (BPD) — Chronic Lung Disease
Definition
- O2 dependency at 36 weeks corrected gestational age (CGA)
- Mild: FiO2 21% (room air) at 36w CGA
- Moderate: FiO2 <30% at 36w CGA
- Severe: FiO2 ≥30% or positive pressure at 36w CGA
Prevention & Management
- Volume-targeted ventilation from outset
- Caffeine therapy — reduces BPD by 36%
- Vitamin A supplementation (<1000g)
- Postnatal corticosteroids (dexamethasone) — severe BPD; risk/benefit discussion
- Diuretics (furosemide): for fluid-overloaded BPD
- Bronchodilators: salbutamol for bronchospasm
Necrotising Enterocolitis (NEC)
Most devastating GI emergency in NICU. Mortality 20–30% overall; up to 50% in surgical NEC. Highest risk: VLBW infants on formula.
Bell's Staging Classification
| Stage | Name | Clinical Signs | Radiology |
|---|
| Stage I | Suspected NEC | Feeding intolerance, mild abdominal distension, bloody stools, temperature instability | Normal or intestinal dilation |
| Stage IIA | Definite NEC (mild) | Above + absent bowel sounds, ± abdominal tenderness, mild metabolic acidosis | Intestinal dilation, pneumatosis intestinalis |
| Stage IIB | Definite NEC (moderate) | Above + thrombocytopaenia, metabolic acidosis, abdominal wall oedema, palpable loop | Portal vein gas, ascites |
| Stage IIIA | Advanced NEC (no perf) | Haemodynamic instability, DIC, peritonitis, deteriorating clinical status | Worsening ascites, fixed dilated loop |
| Stage IIIB | Advanced NEC (perf) | Perforation — sudden deterioration, abdominal rigidity, shock | Free air (pneumoperitoneum) |
Management by Stage
- Stage I–IIA: NBM 7–10 days; OG/NG to free drainage; IV fluids; blood cultures + empiric antibiotics (ampicillin + gentamicin + metronidazole)
- Stage IIB: as above; TPN; serial AXR q6–12h; surgical consult
- Stage IIIA: intensive resuscitation; vasopressors; FFP; platelet transfusion; urgent surgical review
- Stage IIIB — Surgical: peritoneal drain (bedside for ELBW unstable) vs. laparotomy (bowel resection ± ileostomy)
Nursing Priorities
- Strict NBM; accurate fluid balance
- Abdominal girth measurements every 4–6h
- Observe stool for blood; test Hemoccult
- AXR: supine + left lateral decubitus
- Monitor for DIC: PT/APTT/fibrinogen/platelets
Intraventricular Haemorrhage (IVH)
Peak occurrence first 72 hours of life. Major cause of neurodevelopmental impairment in preterm infants. Incidence 30–40% in <28w.
Papile Grading System
| Grade | Description | Outcome |
|---|
| Grade I | Subependymal (germinal matrix) haemorrhage only | Generally favourable |
| Grade II | IVH without ventricular dilation | Mostly favourable |
| Grade III | IVH with ventricular dilation (>50% filled) | High risk of hydrocephalus and disability |
| Grade IV | Periventricular haemorrhagic infarction (PHI) | Severe neurodisability likely; porencephaly |
Head Ultrasound Surveillance Schedule
- Day 3 of life (captures first 72h bleeds)
- Day 7 of life (progression assessment)
- Day 28 of life / 36 weeks CGA
- Grade III–IV: weekly until stable; follow-up at term equivalent
Hydrocephalus Management (Grade III–IV)
- Serial head circumference measurements daily
- Serial lumbar punctures or ventricular taps for post-haemorrhagic hydrocephalus
- Reservoir insertion (Ommaya/Rickham)
- VP shunt when weight >2 kg and infant stable
Prevention Strategies
- Antenatal corticosteroids + MgSO4
- Delayed cord clamping
- Avoid hypotension, rapid fluid boluses
- Head midline positioning; gentle handling
- Avoid rapid shifts in CO2 (pCO2 targets 45–55)
- Indomethacin prophylaxis (controversial — some centres)
Retinopathy of Prematurity (ROP)
Abnormal retinal vascularisation due to prematurity and hyperoxia. Leading cause of preventable blindness in preterm infants.
International Classification
- Zones (I–III): Zone I = posterior pole (most severe); Zone II = mid-periphery; Zone III = anterior periphery
- Stages (1–5):
- Stage 1: Demarcation line
- Stage 2: Ridge
- Stage 3: Ridge with extraretinal fibrovascular proliferation
- Stage 4: Partial retinal detachment (4A: fovea spared / 4B: fovea involved)
- Stage 5: Total retinal detachment
- Plus disease: vascular dilation + tortuosity at posterior pole — marker of aggressive disease
- AP-ROP: Aggressive posterior ROP — rapidly progressive, Zone I/posterior Zone II
Screening Criteria (GCC/International)
- GA <31 weeks at birth, OR
- Birth weight <1501g, OR
- GA 31–35 weeks with unstable clinical course (high O2, sepsis)
Screening Timeline
- First exam: at 31 weeks PMA (postmenstrual age)
- Follow-up frequency determined by initial findings (weekly–2 weekly)
Treatment
- Anti-VEGF (bevacizumab/ranibizumab): intravitreal injection — first-line for Zone I / AP-ROP; faster, avoids GA risk of laser
- Laser photocoagulation: ablates avascular retina; effective for Zone II/III
- Stage 4–5: vitreoretinal surgery (poor prognosis)
- Nursing: maintain strict SpO2 90–95%; document FiO2 exposure
Developmental Care — NIDCAP
NIDCAP: Newborn Individualized Developmental Care and Assessment Programme. Reduces adverse neurodevelopmental outcomes. Core philosophy: infant as communicator; care based on behavioural cues.
Core Principles
- Clustered care: group interventions to allow 2–4 hour uninterrupted sleep cycles
- Minimal handling: necessary interventions only; read stress cues (finger splaying, hiccups, gaze aversion, colour change)
- Cycled lighting: day/night cycles after 28–30 weeks CGA; eye shields for procedures
- Noise reduction: target <45 dB at incubator level; close incubator porthole gently; avoid tapping
- Positioning: flexion boundaries/nesting; midline head position; contain during care; prone position (on monitor continuously) — improves oxygenation and sleep
- Oral stimulation: non-nutritive sucking (NNS) on pacifier during tube feeds — accelerates transition to oral feeds
- Containment holds: during blood tests/procedures — reduces pain response
Pain Assessment & Management
PIPP Score (Premature Infant Pain Profile)
| Indicator | Score 0 | Score 3 |
|---|
| Gestational age | ≥36w | <28w (higher score = more vulnerable) |
| Behavioural state | Active/awake | Active/quiet sleep |
| Heart rate increase | 0–4 bpm | ≥15 bpm |
| SpO2 decrease | 0–2.4% | ≥7.5% |
| Brow bulge | None (<10%) | Maximum (≥70%) |
| Eye squeeze | None (<10%) | Maximum (≥70%) |
| Nasolabial furrow | None (<10%) | Maximum (≥70%) |
Pain Management Ladder
- Non-pharmacological: sucrose 24% 0.1–0.5ml orally 2min before; NNS; containment/swaddling; KMC reduces pain response
- Topical: EMLA cream (lidocaine/prilocaine) for venepuncture — apply 60min prior; caution in ELBW (methaemoglobinaemia)
- Systemic: morphine/fentanyl/midazolam for ventilated infants; careful titration — avoid hypotension/respiratory depression
Family-Centred Care (FICare) & Transition Home
Family Integrated Care (FICare)
- Parents as primary caregivers from admission
- Open/unrestricted visiting 24h/day
- Parents participate in rounds; documentation
- Parents perform: nappy changes, temperature checks, tube feeds, oral care, bathing
- Reduces parental anxiety; improves breastfeeding rates; shorter hospital stay
- Peer support: parent-to-parent buddies
Kangaroo Mother Care (KMC)
- Begin from haemodynamic stability (not necessarily off ventilator)
- Monitor HR, SpO2, temperature continuously
- Minimum 1 hour per session; daily if possible
- Benefits: thermal regulation, weight gain, breastfeeding, neurodevelopment, shorter NICU stay
- Culturally accepted in GCC; promoted by MOH
- Fathers also encouraged to provide KMC
Discharge Readiness Criteria
- Maintaining temperature in open cot (>34–35 weeks CGA)
- Feeding competence: full oral feeds (breast/bottle)
- Apnoea-free: 5–7 days off caffeine
- Car seat test: 90–120 min in car seat — no desaturations/bradycardias
- Apnoea monitor if ongoing risk
- Parents competent: CPR training completed
- Immunisations (calendar age, not corrected): Hep B, BCG, DTP-Hib-IPV as per GCC national schedule
- Outpatient follow-up: ophthalmology (ROP), neurodevelopment, audiology (hearing screen)
GCC-Specific Context
Risk Factors for Preterm Birth — GCC Profile
- High IVF/fertility treatment rates: leads to multiple pregnancies (twins/triplets) — major cause of preterm birth in GCC
- Advanced maternal age: increasing trend; higher preterm and anomaly risk
- Grand multiparity: common in GCC; associated with placenta praevia, abruption, preterm birth
- Consanguinity: increases genetic/congenital abnormalities — higher NICU admissions for structural anomalies
- Haemoglobinopathies: sickle cell disease and thalassaemia prevalent in Gulf — associated with preterm birth and IUGR
- Gestational diabetes: high rates in GCC population — late preterm iatrogenic deliveries
NICU Infrastructure — GCC Tertiary Centres
- King Abdulaziz Medical City, Riyadh (KAMC)
- Hamad Medical Corporation NICU, Doha
- Cleveland Clinic Abu Dhabi, UAE
- King Faisal Specialist Hospital, Riyadh
- Sheikh Khalifa Medical City, Abu Dhabi
- Surfactant (Curosurf/Survanta) available in all tertiary GCC NICUs
- High-frequency oscillation ventilation (HFOV) available
- Inhaled nitric oxide (iNO) available for PPHN
- Therapeutic hypothermia for HIE available in major centres
Donor Milk & Cultural Considerations
Islamic jurisprudence (fiqh) affects donor milk policies in GCC. Nurses must understand and respect this context.
Donor Milk Banks in GCC — Religious Context
- Foster milk relationship (ridaa'): in Islamic law, a child who receives breast milk from a woman other than the mother becomes her "milk child" — creates mahram (prohibited degree) relationships
- This means the donor and recipient families cannot intermarry within certain degrees
- Many GCC families initially decline donor milk due to this concern
- Scholarly opinions vary: some scholars permit anonymous donor milk in NICU emergencies (necessity/darura); others prohibit
- KSA Ministry of Health: generally does not operate formal donor milk banks; relies on mother's own milk
- UAE/Qatar: some hospitals operate pasteurised donor milk banks with informed consent and religious counselling
- Nursing role: sensitive counselling; provide information; support maternal lactation as primary strategy
DHA / DOH Neonatal Standards (UAE)
- Dubai Health Authority (DHA) and Department of Health (DOH) Abu Dhabi publish neonatal clinical practice guidelines
- Align with British Association of Perinatal Medicine (BAPM) and AAP guidelines
- Mandatory ROP screening programmes in DHA/DOH licenced facilities
- KMC and FICare promoted in DHA/DOH frameworks
DHA / DOH / SCFHS Exam Prep — High-Yield Summary
RDS — Key Exam Points
- Cause: surfactant deficiency (type II pneumocytes)
- CXR: ground glass / reticulogranular, air bronchograms, small lung volumes
- ABG: respiratory acidosis + hypoxaemia
- Treatment: surfactant + CPAP (INSURE/LISA)
- SpO2 target: 90–95%
- Antenatal prevention: betamethasone 23–34+6 weeks
- Caffeine: reduces apnoea, BPD, death
- VTV preferred over pressure-control for BPD prevention
NEC — Key Exam Points
- Bell's staging I–III (IIA, IIB, IIIA, IIIB)
- Pneumatosis intestinalis = pathognomonic finding on AXR
- Portal venous gas = ominous sign
- Free air (pneumoperitoneum) = perforation = surgical
- Management: NBM + IV ABx + AXR q6–12h
- Surgical: Bell's III — drain vs. laparotomy
- Prevention: breast milk, probiotics, careful feeding advancement
- Most common organism: E. coli, Klebsiella, Staph epidermidis
IVH & ROP — Key Exam Points
- IVH: Papile Grade I–IV; first 72h; head USS day 3/7/28
- Grade III–IV: hydrocephalus risk; serial HCs; VP shunt if progressive
- IVH prevention: delayed cord clamp, antenatal steroids, MgSO4, avoid rapid fluid bolus
- ROP: Zone I–III (I = worst); Stage 1–5; plus disease
- ROP screening: <31w GA or <1501g; first exam at 31w PMA
- Treatment: anti-VEGF (bevacizumab) or laser photocoagulation
- Strict SpO2 targets prevent ROP progression
Quick Reference — Threshold Values
| Parameter | Target/Threshold |
|---|
| SpO2 (preterm) | 90–95% |
| Temperature (core) | 36.5–37.5°C |
| Glucose (BGL) | >2.6 mmol/L |
| BPD definition | O2 at 36 weeks CGA |
| CPAP PEEP | 5–8 cmH2O |
| Tidal volume VTV | 4–6 ml/kg |
| Caffeine load dose | 20 mg/kg citrate |
| ROP screen starts | 31 weeks PMA |
| Noise limit NICU | <45 dB |
| Corticosteroids up to | 34+6 weeks |
| MgSO4 neuroprotection | <30 weeks |
Mnemonics & Memory Aids
- INSURE: Intubate, Surfactant, Extubate to CPAP
- LISA/MIST: surfactant without intubation
- Bell's NEC: I = Suspect; II = Definite; III = Advanced/Surgical
- Papile IVH: I = germinal matrix; II = IVH no dilation; III = IVH + dilation; IV = parenchymal infarct
- ROP Zones: "I love eyes" — I is innermost (worst), III is outermost (best)
- BPD: "Born Premature Defect" — needs O2 at 36w CGA
- KMC: Keep Mother Close
- PIPP: 7 parameters; >12 = severe pain
GCC NICU Nursing Reference | For educational and exam preparation purposes only | Always follow institutional clinical guidelines