Neonatal Examination
The newborn and infant physical examination (NIPE) is a screening programme performed within 72 hours of birth. It focuses on eyes, heart, hips, and testes, alongside a comprehensive systems examination.
Key Facts
NIPE (Newborn and Infant Physical Examination): Screening at <72 hours and 6-8 weeks; focuses on eyes, heart, hips, and testes Red reflex: Absent or white reflex — urgent ophthalmology referral (retinoblastoma, congenital cataract) Heart murmurs: Present in ~1% of neonates; most are innocent (soft systolic); refer if loud, pan-systolic, diastolic, or associated with cyanosis/signs of HF Barlow and Ortolani tests: Screen for developmental dysplasia of the hip (DDH); positive = USS hip at 2 weeks Undescended testes: Affects ~3-5% of term boys; most descend by 3-6 months; if not palpable by 6 months — referral for orchidopexy by 12 months Vitamin K: Offered to all newborns — IM (single dose) or oral (3 doses) — prevents haemorrhagic disease of the newborn (VKDB) Newborn bloodspot screening: At day 5 — screens for PKU, congenital hypothyroidism, sickle cell disease, CF, MCADD, and other IEMs Apgar score: Assessed at 1 and 5 minutes; 0-3 = severe depression, 4-6 = moderate, 7-10 = normal
Overview
Key Facts
The neonatal examination is a key screening opportunity to identify congenital abnormalities and conditions that benefit from early treatment. The NIPE programme is a national NHS screening programme.
Epidemiology
Approximately 650,000 babies are born in England each year. Congenital heart disease affects ~8 per 1,000 live births. DDH affects ~1-3 per 1,000. Undescended testes affect ~3-5% of term boys. Congenital cataracts affect ~3 per 10,000.
Aetiology
The NIPE programme screens for conditions where early detection improves outcome:
- Eyes: Congenital cataracts, retinoblastoma
- Heart: Congenital heart disease (structural)
- Hips: Developmental dysplasia of the hip
- Testes: Undescended testes (cryptorchidism)
Pathophysiology
DDH: Spectrum from acetabular dysplasia to complete dislocation. Risk factors include breech presentation, family history, female sex, first-born, oligohydramnios. Early detection allows Pavlik harness treatment (splintage) which is successful in >90% if started before 6 weeks.
Congenital heart disease: Structural defects in cardiac development. Critical CHD (duct-dependent) may present with cyanosis or collapse as the ductus arteriosus closes in the first days of life.
Clinical Presentation
Systematic Neonatal Examination
- General: Colour, tone, activity, cry, dysmorphic features
- Head: Fontanelles (anterior — closes 12-18 months; posterior — closes 6-8 weeks), moulding, cephalhaematoma, sutures
- Eyes: Red reflex (bilateral), pupil size, discharge
- Mouth: Palate (feel for cleft), tongue-tie, natal teeth
- Cardiovascular: Heart rate, rhythm, murmurs (position, grade), femoral pulses (absent/weak → coarctation), pre- and post-ductal SpO2
- Respiratory: Rate, symmetry, grunting, recession, breath sounds
- Abdomen: Organomegaly, masses, umbilicus
- Genitalia: Testes (palpable, position), hypospadias, ambiguous genitalia
- Hips: Barlow (dislocatable?) and Ortolani (reducible?) tests
- Spine: Midline defects (dimple, tuft of hair, swelling → spinal dysraphism)
- Skin: Birthmarks, rashes (erythema toxicum, milia, Mongolian blue spots)
- Neurology: Tone, posture, primitive reflexes (Moro, grasp, rooting)
Red Flags
- Absent red reflex — retinoblastoma or cataract; urgent ophthalmology
- Central cyanosis — congenital heart disease until proven otherwise
- Absent femoral pulses — coarctation of the aorta
- Ambiguous genitalia — endocrine emergency; do NOT assign sex
- Midline spinal defect — USS spine before 6 weeks (or MRI after)
- Bilious (green) vomiting — malrotation until proven otherwise
Differential Diagnosis
| Finding | Possible Cause | Action |
|---|---|---|
| Absent red reflex | Congenital cataract, retinoblastoma | Urgent ophthalmology |
| Heart murmur | Innocent (50%), VSD, PDA, ASD, ToF | Echo if concerned |
| Absent femoral pulses | Coarctation of aorta | Urgent echo |
| Hip click/clunk | DDH | USS hips at 2 weeks |
| Undescended testis | Cryptorchidism | Review at 6-8 weeks; referral if not descended |
| Jaundice <24h | Haemolytic disease (Rh/ABO) | Urgent SBR + Coombs |
Diagnosis / Investigation
Bedside
- Pulse oximetry screening: Pre-ductal (right hand) and post-ductal (either foot) SpO2; difference >3% or SpO2 <95% → echocardiography
- Weight: Birth weight, daily weights if concerns
- Blood glucose: If risk factors (SGA, LGA, maternal diabetes)
Bloods
- Newborn bloodspot screening (day 5): PKU, congenital hypothyroidism, sickle cell, CF, MCADD, and 5 other IEMs
- SBR (serum bilirubin): If jaundice <24h or clinically significant
- Blood group and DAT (Coombs): If early jaundice
Imaging
- USS hips: Indicated if positive Barlow/Ortolani, risk factors (breech, family history, foot deformity)
- Echocardiography: If murmur with features of concern, absent femoral pulses, or abnormal pulse oximetry
- USS spine: Before 6 weeks if midline defect (sacral dimple with concerning features)
Special Tests
- Newborn hearing screening (NHSP): Automated auditory brainstem response (AABR) or otoacoustic emissions (OAE) — within first few weeks
Management
Non-pharmacological
- NIPE examination: Within 72 hours and repeated at 6-8 weeks
- Breast/bottle feeding support: Establish feeding; weight check at day 5
- Skin-to-skin contact: Promotes bonding, thermoregulation, breastfeeding
- Safe sleeping advice: Back to sleep, feet to foot of cot, no co-sleeping with risk factors (SIDS prevention)
Pharmacological
- Vitamin K: IM 1mg (single dose) or oral 2mg at birth, 1 week, 4 weeks — prevents VKDB
- Hepatitis B vaccine: Within 24 hours if mother HBsAg positive + HBIG
- BCG vaccine: For babies at increased risk of TB
Referral Criteria
- Absent red reflex — urgent ophthalmology (within 2 weeks)
- Suspected CHD (murmur + cyanosis/absent femorals/abnormal SpO2) — urgent echo
- Positive Barlow/Ortolani — USS hips at 2 weeks
- Undescended testis — review at 6-8 weeks; surgery referral by 6 months
- Ambiguous genitalia — endocrine/DSD team urgently
- Suspected genetic syndrome — clinical genetics
Prognosis
- DDH: >90% success with Pavlik harness if detected early (<6 weeks); late detection requires surgery and has worse outcomes
- CHD: Depends on lesion; duct-dependent lesions need prostaglandin to maintain ductal patency; surgical outcomes greatly improved
- Undescended testis: Spontaneous descent in ~70% by 3 months; orchidopexy before 12 months reduces infertility and malignancy risk
- Congenital cataracts: Good visual outcome if operated within first 6-8 weeks of life
- Newborn screening: Early treatment of PKU, hypothyroidism, and sickle cell disease dramatically improves long-term outcomes
Other Relevant Information
NIPE Screening — Four Key Areas
| Area | Condition | Test | Action if Abnormal |
|---|---|---|---|
| Eyes | Cataract, retinoblastoma | Red reflex | Urgent ophthalmology |
| Heart | CHD | Auscultation + pulse oximetry | Echocardiography |
| Hips | DDH | Barlow + Ortolani | USS hips at 2 weeks |
| Testes | Cryptorchidism | Palpation | Review at 6-8 weeks |
Newborn Bloodspot Screening (9 Conditions)
| Condition | Outcome if Untreated |
|---|---|
| PKU | Severe learning disability |
| Congenital hypothyroidism | Learning disability, growth failure |
| Sickle cell disease | Painful crises, stroke, infection |
| Cystic fibrosis | Progressive lung disease |
| MCADD | Hypoglycaemia, sudden death |
| + 4 other IEMs | Various metabolic crises |