Chapter Notes: High-risk and Sick Newborn

Table of Contents
1. Hyperbilirubinaemia of the Newborn
2. Neonatal Hypoglycaemia
3. Neonatal Hypothermia
4. Neonatal Convulsions
5. Rh Incompatibility
6. Low-Birth-Weight (LBW) Babies
7. Small for Dates (Intrauterine Growth Restriction, IUGR)
8. Birth Asphyxia
9. Respiratory Distress Syndrome (RDS)
10. Neonatal Sepsis
11. Birth Injuries and Trauma
12. Haemorrhagic Diseases of the Newborn (Vitamin K Deficiency Bleeding)
13. Congenital Anomalies
14. Newborn of HIV-Positive Mother
15. Newborn of a Diabetic Mother
16. Levels of Neonatal Care
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Hyperbilirubinaemia of the Newborn

Hyperbilirubinaemia of the newborn refers to an elevated serum bilirubin concentration in the neonatal period. In term infants an arbitrary threshold commonly used is a total serum bilirubin > 12 mg/dL for defining clinically significant hyperbilirubinaemia. Jaundice is first visible on the face and chest and may progress from there.

Types

Unconjugated (indirect) hyperbilirubinaemia

Causes include:

• Haemolytic disease due to Rh or ABO incompatibility
• Increased red cell fragility (for example prematurity)
• Glucose-6-phosphate dehydrogenase (G6PD) deficiency
• Sepsis
• Iatrogenic drug effects
• Breast milk jaundice
• Cephalohaematoma or other significant bruising
• Haemoglobinopathies
• Infant of a diabetic mother
• Hypothyroidism
• Idiopathic neonatal jaundice

Conjugated (direct) hyperbilirubinaemia

Causes include:

• Neonatal hepatitis
• Bacterial infection
• Congenital infections (TORCH: toxoplasmosis, other, rubella, cytomegalovirus, herpes simplex)
• Chromosomal anomalies (for example trisomy 21)
• Inherited metabolic disorders such as galactosaemia
• Cystic fibrosis
• Biliary atresia and other obstructive lesions

Diagnosis

Clinical

Jaundice is assessed by blanching the skin; clinical jaundice in a neonate typically appears when the serum bilirubin is > 5 mg/dL. Observe progression, onset (within 24 hours is important), and associated signs such as poor feeding, lethargy or neurological signs.

Laboratory investigations

• Blood group and Rh for mother and infant; maternal antibody screen
• Direct (direct antiglobulin) Coombs test on the newborn to detect alloimmune haemolysis
• Total bilirubin with fractionation into conjugated and unconjugated fractions
• Complete blood count including reticulocyte count
• Serum albumin (to assess bilirubin binding capacity and need for albumin infusion)
• Urine reducing substances (screen for galactosaemia) and urine culture if infection suspected
• Haemoglobin electrophoresis if haemoglobinopathy suspected
• Osmotic fragility tests if indicated
• Thyroid and liver function tests
• G6PD screening
• Hepatic enzymes and coagulation profile (AST, ALT, prothrombin time) when cholestasis or liver disease suspected

Radiology

Ultrasonography and other imaging may be used to detect obstructive causes such as biliary atresia, or to investigate intracranial haemorrhage if neurological signs are present.

Complications

The most feared complication of severe unconjugated hyperbilirubinaemia is kernicterus (bilirubin encephalopathy), a form of irreversible brain damage due to bilirubin deposition in basal ganglia and brainstem nuclei. Risk is higher with very high serum bilirubin, prematurity, haemolysis, hypoalbuminaemia and certain drugs. Kernicterus can occur in near-term infants at total serum bilirubin levels > 20 mg/dL and in preterm infants at lower levels. Presentation may include poor feeding, lethargy, high-pitched cry, hypotonia followed by hypertonia, abnormal eye movements and seizures.

Management

Treatment aims to reduce serum unconjugated bilirubin and to prevent kernicterus. Main modalities:

• Phototherapy: Blue light converts unconjugated bilirubin in the skin to water-soluble isomers that can be excreted without conjugation. Monitor temperature and hydration during phototherapy. Side effects can include transient skin erythema, increased stools and rarely skin photosensitivity reactions.
• Pharmacologic therapy: Drugs such as phenobarbital may induce hepatic conjugation enzymes in selected cases but are less commonly used for acute management.
• Exchange transfusion: Indicated when bilirubin reaches critical levels or when rapid reduction is required (for example severe haemolysis or signs of kernicterus). Exchange transfusion removes bilirubin and circulating antibodies and restores haemoglobin and albumin.
• Address underlying cause (treat sepsis, manage haemolysis, correct hypothyroidism, discontinue offending drugs).

Neonatal Hypoglycaemia

Definition

Neonatal hypoglycaemia is commonly defined as blood glucose < 40 mg/dL in the neonatal period, irrespective of gestational age. It may be symptomatic or asymptomatic.

Causes

• Low birth weight and prematurity
• Infant of diabetic mother (hyperinsulinaemia)
• Perinatal stresses: birth asphyxia, hypothermia, sepsis
• Polycythaemia
• Respiratory distress, neurological disturbance
• Intrauterine growth restriction (IUGR), small twins
• Maternal conditions: pregnancy-induced hypertension, tocolytics
• Intractable hypoglycaemia due to metabolic disorders: glycogen storage disease, galactosaemia, fructosaemia, organic acidemias, adrenal insufficiency, congenital hyperinsulinism

Clinical manifestations

Symptoms may be nonspecific and include:

• Poor feeding, refusal of feeds
• Tremors, jitteriness, twitching
• Limpness, hypotonia, lethargy, irritability, high-pitched cry
• Pallor, hypothermia
• Apnoea, tachycardia, tachypnoea
• Seizures and coma in severe cases

In preterm infants apnoea and irregular breathing may predominante.

Management

Asymptomatic at-risk infants

• Early initiation of breastfeeding within the first hour of life
• Maintain thermoneutral environment and monitor for hypoxia and hypothermia
• Screen blood glucose in at-risk infants and observe closely

Symptomatic infant

• For convulsions: give 25% dextrose IV at 2 mL/kg as a bolus.
• If no convulsion: give 10% dextrose IV bolus 2 mL/kg followed by continuous infusion of 10% glucose at a rate that supplies roughly 6-8 mg/kg/minute (adjust to local protocols).
• Check blood glucose every 30 minutes until stable; reduce infusion rate only when two consecutive glucose measurements > 60 mg/dL and oral feeds are established.
• If hypoglycaemia persists, repeat bolus and investigate for hyperinsulinaemia or cortisol deficiency; check serum insulin and cortisol.
• In refractory cases consider hydrocortisone (for example 5 mg/kg IV every 12 hours) or, in hyperinsulinaemic infants, agents such as glucagon, diazoxide or octreotide under specialist care.

Neonatal Hypothermia

Definition: Neonatal hypothermia occurs when the infant's body temperature falls below 36.5 °C (97.7 °F). Normal neonatal temperature range is roughly 36.5-37.5 °C.

Stages

• Mild (cold stress): 36.0-36.4 °C
• Moderate: 32.0-35.9 °C
• Severe (neonatal cold injury): < 32.0 °C

Risk factors

• Inadequate drying and wrapping after birth
• Separation from the mother
• Cold delivery room or transport environment
• Evaporative, conductive, convective or radiative heat loss (wet infant, cold surface, draughts)
• High-risk neonates: low birth weight, asphyxia, congenital anomalies, maternal anaesthesia

Clinical features

Early signs

• Axillary or skin temperature < 36.5 °C
• Cold extremities (hands, feet), weak suck, weak cry, lethargy
• Peripheral vasoconstriction leading to blue extremities

Late signs

• Slow, shallow, irregular respiration; bradycardia
• Pale body with red extremities, central cyanosis
• Edema, sclerema, weight loss, poor response

Prevention at birth and in the delivery room

• Maintain a warm delivery room free from draughts
• Immediate drying and wrapping in prewarmed towels; cover the head
• Use radiant warmer or prewarmed incubator where indicated
• Encourage skin-to-skin (kangaroo) contact to preserve warmth and encourage breastfeeding
• Postpone routine bathing until infant is thermally stable; clean blood/meconium with lukewarm water
• Early initiation of breastfeeding

Transport and neonatal unit measures

• Ensure thermal stability before transfer; wrap in prewarmed cloths and cover head and extremities
• Avoid open trolleys; use insulated transport with prewarmed linen if available
• In neonatal unit: receive infant in prewarmed cloth, maintain ambient temperature appropriate for weight and gestation, humidity ~50%
• Monitor axillary temperature every 3 hours initially and after interventions

Home care

• Maintain warmth by warm room, adequate clothing, skin-to-skin contact and exclusive breastfeeding
• Teach mothers to assess thermal comfort by touch: warm pink feet suggest comfort; cold feet with warm abdomen indicates cold stress; both cold indicates hypothermia

Management of hypothermia

Moderate hypothermia

• Rewarm by skin-to-skin contact with the mother in a warm room
• Use a radiant warmer or incubator if available
• Monitor temperature every 15-30 minutes until normal

Severe hypothermia

• Rewarm in an air-heated incubator or radiant warmer set around 37-38 °C
• Monitor heart rate, blood pressure, temperature and blood glucose closely
• Provide IV fluids with glucose (10% dextrose), oxygen therapy and give vitamin K (1 mg IM for term, 0.5 mg for preterm) as required
• Prevent further heat loss and treat underlying causes

Neonatal Convulsions

Neonatal convulsions are a common and serious manifestation of underlying cerebral or metabolic disturbance in the newborn. Febrile seizures do not occur in neonates.

Common causes

• Hypoxic ischemic encephalopathy (HIE) / birth asphyxia
• Hypoglycaemia
• Hypocalcaemia
• Sepsis/meningitis
• Inborn errors of metabolism
• Intracranial haemorrhage (especially in preterm infants)
• Drugs (maternal narcotic addiction, maternal theophylline or phenothiazines)

Types of neonatal seizures

Major categories:

1. Subtle (most common; includes ocular phenomena, chewing, pedalling or bicycling movements, apnoeic spells)
2. Generalized tonic
3. Multifocal clonic
4. Focal clonic
5. Myoclonic

About half of neonatal seizures are subtle and may present as eye deviations, blinking, sucking, pedalling movements, apnoea or bradycardia.

Investigations

• Serum glucose, electrolytes (calcium, phosphorus, magnesium)
• Full blood count and blood culture if infection suspected
• Lumbar puncture with CSF examination when meningitis suspected (after stabilising infant)
• Neuroimaging: cranial ultrasound (especially in preterm), CT or MRI as indicated
• Electroencephalography (EEG) to document electrical seizure activity
• History: time of onset, family history, maternal drug use, prenatal infections

Management

• Supportive care: airway, breathing (oxygen/ventilatory support), circulation, thermal protection
• Correct metabolic disorders: hypoglycaemia, hypocalcaemia, electrolyte imbalances
• Anticonvulsant therapy: first-line often phenobarbitone; phenytoin, levetiracetam or sodium valproate are used depending on cause and local protocols
• Treat underlying cause (antibiotics for sepsis, manage HIE supportively)
• Follow recognised neonatal seizure management protocols (for example established paediatric/neonatal guidelines)

Rh Incompatibility

Definition: Rh incompatibility occurs when an Rh-negative mother carries an Rh-positive fetus and maternal sensitisation to fetal red blood cell antigens (commonly the D antigen) leads to production of IgG antibodies that cross the placenta and cause fetal haemolysis.

Genetics

If the father is heterozygous for the Rh D gene, there is a 50% chance an offspring will be Rh positive; if he is homozygous Rh positive, all offspring will be Rh positive and potentially at risk when the mother is Rh negative and sensitised.

Clinical manifestations of affected fetus/newborn

• Hydrops fetalis: Severe fetal anaemia, cardiac failure, hypoproteinaemia and generalised oedema (hydrops). It can lead to stillbirth or early neonatal death.
• Icterus gravis neonatorum: Early and severe neonatal jaundice within 24 hours after birth due to haemolysis; risk of kernicterus if bilirubin becomes very high.
• Congenital anaemia: ongoing haemolysis for weeks with hepatosplenomegaly and anaemia.

Investigation and antenatal surveillance

• Determine maternal blood group and Rh at first antenatal visit; test the father when mother is Rh negative
• Indirect Coombs test to detect maternal anti-D IgG antibodies; serial antibody titration during pregnancy
• Doppler ultrasound of the foetal middle cerebral artery (MCA) peak systolic velocity (PSV): a value > 1.5 multiples of the median (MoM) for gestation predicts moderate-to-severe fetal anaemia
• Amniocentesis with optical density measurement at 450 nm (Liley method) was historically used to assess severity; interpretation by zones may guide management
• Cordocentesis (fetal blood sampling) for direct measurement of fetal haematocrit when indicated

Prevention

• Administer anti-D immunoglobulin (300 μg IM) to Rh-negative mothers antenatally and within 72 hours after any potentially sensitising event (delivery of an Rh-positive baby, abortion, invasive procedures) to prevent maternal sensitisation
• Minimise fetomaternal haemorrhage during procedures and childbirth through careful obstetric technique
• Avoid external cephalic version and unnecessary invasive procedures unless indicated and with precautions

Management of affected pregnancies

• Serial maternal antibody titration and fetal surveillance with MCA Doppler from about 20 weeks when indicated
• If significant fetal anaemia is suspected (MCA PSV > 1.5 MoM or falling fetal haematocrit), consider cordocentesis and intrauterine transfusion to raise fetal haematocrit to a safe level (for example 40-50%)
• Delivery planning: if fetal condition deteriorates or gestation > 34 weeks and lungs are mature, delivery may be considered; referral to tertiary care for high-risk management

Low-Birth-Weight (LBW) Babies

Definition: Neonates with birth weight < 2,500 g, regardless of gestational age. LBW includes preterm (< 37="" completed="" weeks)="" and="" small-for-date="" (iugr)="">

Preterm infant

Definition: Birth before 37 completed weeks of gestation.

Preterm infants are common contributors to neonatal morbidity and mortality. They have reduced physiological reserves and require special attention to thermoregulation, respiration, nutrition and infection prevention.

Causes of prematurity

Maternal

• Cervical incompetence and uterine anomalies
• Acute maternal illness or surgery during pregnancy
• Pregnancy complications: pre-eclampsia, antepartum haemorrhage, premature rupture of membranes, polyhydramnios
• Chronic maternal diseases: hypertension, renal disease, diabetes, cardiac disease, severe anaemia
• Genital tract infections
• Previous preterm births or abortions
• Low socioeconomic and nutritional status

Fetal

• Multiple pregnancy
• Congenital malformations
• Intrauterine death of a co-twin

Placental

• Placenta previa, abruptio placentae, infarction, thrombosis

Clinical signs of prematurity

• Weight < 2,500 g (by definition)
• Length < 44 cm in many preterm infants
• Large head relative to body, soft skull bones, wide sutures and large fontanelles
• Soft, flat pinnae; eyes often kept closed
• Thin, red, shiny skin with abundant lanugo and vernix caseosa
• Poor muscle tone and weak reflexes
• Undescended testes in males, exposed labia minora in females

Complications of prematurity

• Asphyxia and respiratory difficulties (RDS)
• Hypothermia due to decreased subcutaneous and brown fat
• Pulmonary problems: pulmonary oedema, intra-alveolar haemorrhage, bronchopulmonary dysplasia
• Cerebral haemorrhage (intraventricular haemorrhage)
• Hypoglycaemia, hypocalcaemia
• Cardiac problems including patent ductus arteriosus and heart failure
• Renal immaturity causing oliguria, anuria
• Higher risk of infection due to reduced maternal antibody transfer
• Jaundice from hepatic immaturity
• Retinopathy of prematurity

Immediate management at birth

• Clamp the cord and provide thermoregulation (wrap in warm towel, hat)
• Clear airway and provide adequate oxygen
• Place infant under radiant warmer or incubator
• Administer vitamin K (1 mg IM for term infants)
• Strict asepsis to prevent infection

Intensive care principles

• Thermal protection: delay bathing, kangaroo mother care, incubator or radiant warmer as required
• Respiratory support: clear airway, oxygen therapy via oxyhood, CPAP or mechanical ventilation when needed; consider antenatal corticosteroids to improve lung maturity when preterm delivery anticipated
• Infection prevention: aseptic techniques, empirical antibiotics when indicated (e.g. ampicillin 100 mg/kg/day plus an aminoglycoside such as amikacin 10 mg/kg/day divided doses)
• Nutrition: IV fluids for very small or sick infants, expressed breast milk via gavage, spoon or tube feeding; fortify feeds as needed for growth
• Monitoring: weight, temperature, cardiorespiratory monitoring, biochemical monitoring (glucose, electrolytes, blood gases)
• High standard nursing care with appropriate nurse-to-infant ratios; encourage maternal involvement and breastfeeding support

Favourable signs and discharge criteria

• Persistent pink skin colour and stable thermoregulation
• Smooth, regular breathing without significant support
• Vigour: spontaneous movements, good cry
• Progressive weight gain and ability to suck-feed successfully
• Discharge planning includes feeding education, supplementation as indicated, and close follow-up

Small for Dates (Intrauterine Growth Restriction, IUGR)

Definition: IUGR is present when birth weight is below the 10th percentile for gestational age.

Types

• Symmetrical IUGR: Uniform smallness of head and body; often due to early fetal or genetic causes (chromosomal abnormalities, congenital infections).
• Asymmetrical IUGR: Head size preserved relative to abdomen (head-sparing); commonly due to placental insufficiency in later pregnancy.

Ponderal index (PI) is used to characterise thinness: PI = 100 × Weight (g) / Height (cm)³. Typical PI values are between 2.0 and 2.5; PI is normal in symmetrical IUGR and low in asymmetrical IUGR.

Causes

• Maternal factors: malnutrition, chronic disease, infections (TORCH), hypertension, substance use, teenage pregnancy
• Placental factors: placental insufficiency, single umbilical artery, abruption
• Fetal factors: multiple pregnancy, congenital anomalies, chromosomal disorders
• Environmental factors: high altitude, smoking, radiation

Diagnosis

• Clinical: fundal height lag, poor maternal weight gain, small abdominal girth
• Biophysical: ultrasound assessment (head circumference/abdominal circumference ratio), femur length/abdominal circumference ratio, amniotic fluid volume (< 2 cm vertical pocket suggests oligohydramnios)
• Doppler velocimetry: abnormal uterine/umbilical artery flow is associated with IUGR
• Biochemical: elevated cord erythropoietin may suggest chronic hypoxia

Clinical features of IUGR newborn

• Low birth weight often several hundred grams below expected
• Relatively larger head in asymmetrical IUGR, thin, wrinkled skin, scant vernix and meconium-stained skin
• Well-defined plantar creases, alert and active in many cases

Complications

• Asphyxia, hypoglycaemia, meconium aspiration, pulmonary haemorrhage
• Polycythaemia and hyperviscosity
• Necrotising enterocolitis (NEC)
• Intraventricular haemorrhage and impaired feeding/slow weight gain

Management

Prevention focuses on maternal health, nutrition and antenatal care. Specific management in pregnancy depends on severity and gestation:

• Fetal surveillance (daily fetal movement counts, non-stress tests, biophysical profile, Doppler) and timely delivery when indicated
• For severe IUGR at preterm gestations, consider transfer to an equipped centre and evaluate fetal lung maturity; give antenatal corticosteroids if delivery is imminent
• After birth: ensure thermal protection, early and frequent feeds, monitor glucose and haematocrit, treat polycythaemia or anaemia as required, watch for infection and NEC
• Nursing: maintain neutral thermal environment, small frequent feeds, gavage feeding if needed, monitor weight daily, provide parental education and follow-up

Birth Asphyxia

Definition: Failure to establish and maintain adequate spontaneous respiration at birth resulting in hypoventilation, hypoxia, hypercapnia and metabolic acidosis. Clinically this can result in progressive hypoxia, hypoperfusion and lactic acidosis.

Causes

• Continuation of intrauterine hypoxia due to placental insufficiency (abruption, cord problems)
• Maternal hypoxic states (severe anaemia, eclampsia, cardiorespiratory disease)
• Intrapartum medications (opioids, anaesthetic agents)
• Birth trauma, malpresentation, prolonged or obstructed labour
• Postnatal disorders of pulmonary, cardiovascular or neurological systems

Phases of asphyxia

• Primary apnea (brief period shortly after birth with gasping and possible convulsions)
• Gasping phase
• Secondary/terminal apnea if oxygenation is not restored

Clinical assessment and scoring

Use immediate clinical signs-respiration, heart rate and colour-to decide on resuscitation rather than waiting for Apgar scoring. Apgar scores indicate the degree of depression (0-3 severe, 4-6 moderate, 7-10 minimal or none).

Immediate and delayed complications

• Immediate: cardiovascular instability, acute renal failure, hepatic dysfunction, gastrointestinal injury including NEC, pulmonary hypertension, cerebral oedema
• Delayed: neurodevelopmental delay, epilepsy, minimal brain dysfunction

Prevention and definitive management

• Preventive: identify high-risk pregnancies, fetal monitoring in labour, timely obstetric intervention
• Resuscitation: follow current neonatal resuscitation guidelines for airway, breathing, circulation (CPR, positive pressure ventilation, intubation as needed)
• Medications: epinephrine 0.1-0.3 mL/kg of 1:10,000 dilution IV for persistent bradycardia (repeat every 5 minutes if needed); sodium bicarbonate for severe metabolic acidosis as per protocol; naloxone for neonatal depression due to recent maternal opioids
• Volume expanders and inotropes (for example dopamine) for hypotension and poor perfusion
• Supportive nursing care: avoid excessive stimulation, monitor neurological status, fluids and electrolytes, anticonvulsants if seizures occur

Respiratory Distress Syndrome (RDS)

Definition: RDS is primarily a disease of preterm infants caused by surfactant deficiency, leading to widespread alveolar collapse (atelectasis) and impaired gas exchange. It is more common in preterm infants, infants of diabetic mothers and those delivered by caesarean section without labour.

Pathogenesis

Surfactant production increases with gestation, with a major rise around 30-34 weeks and further with labour. Surfactant deficiency increases surface tension, resulting in alveolar collapse and development of hyaline membranes composed of proteinaceous exudate lining alveoli.

Signs and symptoms

• Onset commonly within 4-6 hours after birth
• Tachypnoea (> 60/min), nasal flaring, intercostal and subcostal retractions
• Expiratory grunting and cyanosis

Diagnosis

Chest radiograph characteristically shows a "ground-glass" appearance with low lung volumes and air bronchograms.

Complications

• Intraventricular haemorrhage
• Bronchopulmonary dysplasia
• Pneumothorax, pulmonary haemorrhage
• Retinopathy of prematurity due to prolonged oxygen therapy

Prevention and management

• Antenatal corticosteroids (betamethasone or dexamethasone) to mothers at risk of preterm delivery < 34 weeks to accelerate lung maturation
• Surfactant replacement therapy administered into the trachea when indicated after birth
• Supportive respiratory care: supplemental oxygen, CPAP, intubation and mechanical ventilation if required; monitor blood gases
• Maintain thermal stability, correct hypovolaemia and anaemia, prevent and treat infection
• Monitor and correct acidosis with appropriate measures including bicarbonate if indicated
• Nutrition: gavage feeds or parenteral fluids as needed to avoid aspiration

Neonatal Sepsis

Definition: Systemic bacterial infection of the newborn, encompassing septicaemia, pneumonia and meningitis. Common pathogens include Klebsiella, Staphylococcus aureus, Escherichia coli and Pseudomonas, among others.

Risk factors

• Intrauterine infection and prolonged rupture of membranes (PROM)
• Meconium-stained liquor, repeated vaginal examinations
• Low birth weight, prematurity
• Birth asphyxia and resuscitation without asepsis
• Invasive procedures, contaminated equipment, poor breastfeeding

Sources of infection in hospital

• Infusion sets, IV sites, feeding bottles, catheters, ventilators, incubators, resuscitators
• Contaminated hands or environment and infected caregivers

Classification

• Early-onset sepsis: < 72 hours of life; usually perinatally acquired and often presents as pneumonia
• Late-onset sepsis: > 72 hours; often nosocomial, may present as septicaemia or meningitis

Clinical features

Presentation is often nonspecific: poor feeding, lethargy, temperature instability (hypothermia more common than fever), apnoea, tachypnoea, respiratory distress, abdominal distension, vomiting, jaundice, sclerema, shock. Meningitis may present with high-pitched cry, convulsions, irritability and bulging fontanelle.

Investigations

• Blood culture prior to antibiotic therapy
• Full blood count, CRP, ESR
• Blood glucose, serum bilirubin
• Urine microscopy and culture
• Swab for culture from umbilicus or focal lesions
• Lumbar puncture for CSF analysis when meningitis suspected
• Chest X-ray if respiratory involvement suspected

Management

Early recognition and prompt empiric antibiotic therapy with supportive care are essential:

• Supportive measures: maintain warmth, intravenous fluids, oxygen therapy, ventilatory support if needed
• Empirical antibiotics: a combination such as ampicillin plus an aminoglycoside (gentamicin or amikacin) is commonly used; add agents (for example chloramphenicol or a third-generation cephalosporin) if meningitis is suspected-follow local resistance patterns and paediatric guidelines
• Adjust antibiotic choice according to culture results and clinical response; typical durations: 7-14 days for septicaemia/pneumonia, 14 days for UTI, 21 days for bacterial meningitis
• Other measures: anticonvulsants for seizures, inotropes for shock, blood transfusion for anaemia, phototherapy or exchange transfusion for severe hyperbilirubinaemia
• Immunoglobulin preparations may be used in specific situations (e.g. group B streptococcal prophylaxis in some settings)
• Treat superficial infections appropriately and observe strict infection control

Birth Injuries and Trauma

Definition: Birth injuries encompass mechanical trauma to a newborn occurring during labour or delivery. Birth trauma may affect soft tissues, bone, nerves and internal organs.

Predisposing factors

• Primigravida, cephalopelvic disproportion, prolonged or rapid labour
• Abnormal presentations (breech), instrument-assisted delivery (forceps/vacuum)
• Very low birth weight or extreme prematurity, fetal macrosomia

Common injuries

• Soft tissue: abrasions, petechiae, ecchymoses, lacerations
• Scalp: caput succedaneum (subcutaneous extraperiosteal swelling) and cephalhaematoma (subperiosteal haematoma limited by suture lines)
• Skull fractures including linear fractures
• Facial and retinal haemorrhages
• Clavicle and long-bone fractures
• Peripheral nerve injuries: Erb's palsy (upper brachial plexus), facial nerve palsy, radial nerve palsy
• Intra-abdominal injuries: hepatic, splenic or adrenal haemorrhage

Cephalhaematoma

Subperiosteal collection of blood that does not cross suture lines. It may predispose to later hyperbilirubinaemia and rarely to infection. Management is observation; aspiration is contraindicated because of infection risk. Investigate for anaemia if large blood loss is suspected.

Caput succedaneum

Diffuse subcutaneous swelling of the scalp that crosses suture lines; usually resolves within days without treatment.

Erb's palsy (brachial plexus injury)

Injury to the upper roots (C5-C6) causing characteristic arm posture: adduction, internal rotation at shoulder with pronation of forearm and absent biceps reflex on the affected side. Management includes positioning, physiotherapy, gentle mobilisation and, if no improvement by 3 months or for severe lesions, surgical referral for possible nerve repair or grafting.

Facial nerve palsy

Often due to pressure injury during delivery; typically affects lower face muscles and is most noticeable with crying. Eye protection is important if eyelid closure is incomplete. Most cases recover; surgery is rarely required.

Torticollis (congenital muscular)

Head tilt due to sternocleidomastoid tightness often from intrauterine malposition or birth trauma. Early physiotherapy, positioning strategies and "tummy time" help; surgery is considered only when conservative measures fail.

Haemorrhagic Diseases of the Newborn (Vitamin K Deficiency Bleeding)

Vitamin K deficiency in the newborn causes impaired synthesis of vitamin K-dependent clotting factors (II, VII, IX and X) and proteins C and S, leading to a bleeding tendency. It is classified by timing into early, classic and late onset vitamin K deficiency bleeding (VKDB).

Common bleeding manifestations

• Gastrointestinal bleeding (haematemesis, melaena)
• Pericranial and intracranial haemorrhages
• Prolonged bleeding from skin or procedures

Diagnosis

• Clinical examination and history (feeding, maternal medication such as anticonvulsants)
• Laboratory: prolonged prothrombin time (PT), abnormal clotting profile; correction with vitamin K confirms deficiency

Management

• Administer vitamin K prophylaxis at birth (single IM dose is recommended in most settings)
• In active bleeding or if coagulation abnormal, give vitamin K and consider fresh frozen plasma and/or prothrombin complex concentrates to restore clotting factors
• Treat site-specific lesions (for example endoscopic or surgical management of severe GI bleeding) and provide transfusion support as necessary

Congenital Anomalies

Definition: Structural or functional anomalies that arise during intrauterine life and are present at birth or become apparent later. They may be genetic, chromosomal or due to environmental teratogens or maternal disease.

Incidence and common risk factors

• Global incidence: approximately 30-70 per 1,000 live births; regional variation exists
• Risk factors: parental consanguinity, advanced maternal age (chromosomal anomalies), maternal malnutrition (folate, iodine deficiencies), maternal infections (TORCH), teratogenic drugs and exposures

Etiology

• Genetic: chromosomal abnormalities (for example trisomy 21), single-gene disorders (autosomal dominant, autosomal recessive, X-linked)
• Multifactorial/polygenic with environmental contribution
• Environmental: drugs, radiation, maternal disease (diabetes), infections, nutritional deficiencies

Screening and diagnosis

Prenatal diagnosis: ultrasound, maternal serum screening (for example maternal serum alpha-fetoprotein), chorionic villus sampling, amniocentesis and genetic testing where indicated. Postnatal diagnosis: detailed physical examination, radiography, ultrasound, biochemical assays, cytogenetic studies and targeted genetic tests.

Common congenital anomalies (overview)

• Central nervous system: anencephaly, encephalocoele, meningomyelocele (spina bifida), hydrocephalus, microcephaly
• Cardiac: ventricular septal defect (VSD), atrial septal defect (ASD), patent ductus arteriosus (PDA), coarctation of aorta, Tetralogy of Fallot, transposition of great arteries
• Gastrointestinal: tracheo-oesophageal fistula, oesophageal atresia, pyloric stenosis, duodenal atresia, meconium ileus, Hirschsprung disease, exomphalos, gastroschisis, intestinal obstruction
• Respiratory: choanal atresia, pulmonary hypoplasia or agenesis
• Genitourinary: renal agenesis, hydronephrosis, polycystic kidney disease, horseshoe kidney, hypospadias, undescended testes, hydrocele
• Musculoskeletal: clubfoot (talipes), congenital dislocation of hip, polydactyly, syndactyly, limb reduction defects (amelia, phocomelia)
• Haematological and metabolic: thalassaemia, haemophilia, sickle cell disease, G6PD deficiency, phenylketonuria, cystic fibrosis, glycogen storage disorders
• Endocrine: congenital hypothyroidism, congenital adrenal hyperplasia
• Chromosomal: Down syndrome (trisomy 21), Edwards syndrome (trisomy 18), Turner syndrome (45,X), Klinefelter syndrome (47,XXY)
• Others: cleft lip and cleft palate, congenital cataract, congenital glaucoma, biliary atresia

Prevention and genetic counselling

Prevention includes preconception care, folic acid supplementation, avoidance of teratogens, immunisation against rubella and effective antenatal care. Genetic counselling is essential for families with known risk: it includes interpretation of family history, discussion of recurrence risks, options for prenatal diagnosis and informed reproductive choices.

Nursing responsibilities

• Obtain detailed prenatal, natal and family histories; prepare pedigree charts
• Participate in diagnostic testing and follow-up
• Provide information, emotional support and education to parents
• Refer for genetic counselling and rehabilitation services as required

Newborn of HIV-Positive Mother

Vertical transmission from mother to child can occur in utero, intrapartum or via breastfeeding. Prevention of mother-to-child transmission (MTCT) and early diagnosis and treatment are priorities.

Modes of transmission

• Vertical transmission in utero, during delivery or through breastfeeding (breastfeeding contributes a variable risk)
• Blood transfusion, contaminated instruments or organ transplantation are other routes

Factors increasing MTCT risk

• High maternal viral load, low CD4 count, advanced maternal disease
• Placental inflammation, prematurity
• Lack of maternal antiretroviral therapy and breastfeeding in absence of effective maternal/infant prophylaxis

Clinical staging and diagnosis

WHO clinical staging guides management in children. Serological testing in neonates is complicated by maternal IgG; nucleic acid testing (PCR) or p24 antigen detection is used for early definitive diagnosis in infants. Maternal antibodies may persist in the infant for many months; hence antibody tests are unreliable early on.

Complications

• Recurrent and opportunistic infections, failure to thrive, developmental delay, haematological abnormalities (anaemia, neutropenia, thrombocytopenia)
• Chronic organ involvement: cardiomyopathy, nephropathy, neuropathy

Management principles

• Prevention: antenatal antiretroviral therapy to mother, intrapartum prophylaxis, avoidance of exposure during birth where possible, and appropriate infant prophylaxis (for example zidovudine) initiated promptly
• Avoid breastfeeding if safe, affordable alternatives are available and recommended; where breastfeeding is practised, antiretroviral prophylaxis reduces transmission risk
• Early diagnosis using PCR assays and prompt treatment for infections
• Supportive care: nutrition, prophylaxis against opportunistic infections (for example isoniazid for TB where appropriate), family counselling and psychosocial support
• Combination antiretroviral therapy for infected children in line with national guidelines

Nursing care for infants of HIV-positive mothers

• Use standard precautions at all times
• Bath the infant as soon as feasible; protect staff with gloves and gown during procedures
• Administer vitamin K intramuscularly with parental consent
• Do not breastfeed when alternatives are safe and recommended; teach bottle-feeding techniques if appropriate
• Obtain baseline investigations (glucose, HIV prophylaxis initiation as per protocol)
• Delay administration of live vaccines until the infant's HIV status is clarified, following local immunisation guidelines

Newborn of a Diabetic Mother

Overview

Infants of diabetic mothers (pre-gestational or gestational diabetes) are at risk of several complications related to maternal hyperglycaemia and foetal hyperinsulinaemia.

Common neonatal problems

• Macrosomia (large-for-gestational-age) with risk of birth trauma
• Hypoglycaemia after birth due to persistent hyperinsulinaemia
• Respiratory distress syndrome (delayed lung maturity)
• Hypocalcaemia, hyperbilirubinaemia (due to polycythaemia), congenital cardiac defects
• Polycythaemia, small left colon syndrome

Prevention and antenatal care

Careful glycaemic control during pregnancy, antenatal surveillance and, when preterm birth is anticipated, assessment of lung maturity and administration of antenatal corticosteroids when indicated.

Postnatal management

• Monitor blood glucose frequently (heel prick or blood sampling) in the immediate neonatal period
• Early feeding to prevent hypoglycaemia; if feeds are inadequate, give intravenous glucose (10% dextrose) and monitor levels
• Check calcium levels and manage hypocalcaemia
• Provide respiratory support including oxygen or ventilatory assistance if respiratory distress occurs
• Manage hyperbilirubinaemia with phototherapy or exchange transfusion if required

Levels of Neonatal Care

Neonatal care is commonly stratified into levels to match infant needs to available resources.

Level I (basic newborn care)

• For the majority (80-90%) of neonates requiring minimal support
• Infants > 2,000 g and ≥ 37 weeks gestation typically cared for at home or primary health facilities
• Focus on essential newborn care: warmth, breastfeeding promotion, basic resuscitation and asepsis

Level II (special or intermediate neonatal care)

• For infants 1,500-2,000 g or gestation 32-36 weeks requiring specialised monitoring and short-term support
• Services include resuscitation, thermoregulation, IV fluids, gavage feeding, phototherapy and exchange transfusion
• Available at district hospitals and centres handling larger birth volumes

Level III (neonatal intensive care)

• For very small infants < 1,500 g or < 32 weeks and critically ill neonates
• Requires neonatal intensive care units with incubators, ventilators, central oxygen/suction, infusion pumps and neonatology specialists
• Only a small proportion (3-5%) of newborns require this level of care

High-risk pregnancies should be identified antenatally and referred appropriately so that infants are born in or transferred to centres able to provide the required level of neonatal care to reduce mortality and morbidity.