Jaundice neonatal
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Transcript of Jaundice neonatal
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Neonatal jaundice
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Neonatal Jaundice• Learning Objectives:Learning Objectives:• Define hyperbilirubinemia.Define hyperbilirubinemia.• Differentiate between physiological and Differentiate between physiological and
pathological jaundice.pathological jaundice.• State causes of hyperbilirubinemia.State causes of hyperbilirubinemia.• Discuss the pathophysiology of Discuss the pathophysiology of
hyperbilirubinemia.hyperbilirubinemia.• Describe the most dangerous complication Describe the most dangerous complication
of hyperbilirubinemia.of hyperbilirubinemia.• List the three elements of therapeutic List the three elements of therapeutic
management.management.• Design plan of care for baby has Design plan of care for baby has
hyperbilirubinemia.hyperbilirubinemia.
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Neonatal Jaundice(Hyperbilirubinemia)
• Definition: Definition: Hyperbilirubinemia Hyperbilirubinemia refers to an refers to an excessive level of accumulated bilirubin in excessive level of accumulated bilirubin in the blood and is characterized by jaundice, a the blood and is characterized by jaundice, a yellowish discoloration of the skin, sclerae, yellowish discoloration of the skin, sclerae, mucous membranes and nails. mucous membranes and nails.
• UnUnconjugated bilirubin = conjugated bilirubin = InIndirect bilirubin.direct bilirubin.• Conjugated bilirubin = Direct bilirubin.Conjugated bilirubin = Direct bilirubin.
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Neonatal Jaundice• Visible form of bilirubinemia Visible form of bilirubinemia
–Newborn skin >5 mg / dlNewborn skin >5 mg / dlOccurs in 60% of term and 80% of Occurs in 60% of term and 80% of
preterm neonatespreterm neonatesHowever, significant jaundice occurs in However, significant jaundice occurs in
6 % of term babies 6 % of term babies
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Bilirubin Production & Metabolism
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Clinical assessment of jaundice
Area of body Area of body Bilirubin levels Bilirubin levels mg/dl mg/dl (*17=umol)(*17=umol)
Face Face 4-8 4-8Upper trunkUpper trunk 5-12 5-12Lower trunk & thighsLower trunk & thighs 8-16 8-16Arms and lower legsArms and lower legs 11-18 11-18Palms & solesPalms & soles > 15 > 15
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Physiological jaundice
CharacteristicsCharacteristics• Appears after 24 hoursAppears after 24 hours• Maximum intensity by 4th-5th day in term Maximum intensity by 4th-5th day in term
& 7th day in preterm& 7th day in preterm• Serum level less than 15 mg / dlSerum level less than 15 mg / dl• Clinically not detectable after 14 daysClinically not detectable after 14 days• Disappears without any treatmentDisappears without any treatment
Note: Baby should, however, be watched for Note: Baby should, however, be watched for worsening jaundice.worsening jaundice.
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Why does physiological jaundice develop?
• Increased bilirubin load.Increased bilirubin load.• Defective uptake from plasma.Defective uptake from plasma.• Defective conjugation.Defective conjugation.• Decreased excretion.Decreased excretion.• Increased entero-hepatic Increased entero-hepatic
circulation.circulation.
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Age in Days
TermPreterm
1 2 3 4 5 6 10 11 12 13 14
15
10
5Bil
iru
bin
leve
lm
g/d
l
Course of physiological jaundice
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Pathological jaundice
• Appears within 24 hours of ageAppears within 24 hours of age• Increase of bilirubin > 5 mg / dl / dayIncrease of bilirubin > 5 mg / dl / day• Serum bilirubin > 15 mg / dlSerum bilirubin > 15 mg / dl• Jaundice persisting after 14 daysJaundice persisting after 14 days• Stool clay / white colored and urine Stool clay / white colored and urine
staining clothes yellowstaining clothes yellow• Direct bilirubin> 2 mg / dlDirect bilirubin> 2 mg / dl
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Causes of jaundice
Appearing within 24 hours of age• Hemolytic disease of NB : Rh, ABOHemolytic disease of NB : Rh, ABO• Infections: TORCH, malaria, Infections: TORCH, malaria,
bacterialbacterial• G6PD deficiencyG6PD deficiency
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Causes of jaundice
Appearing between 24-72 hours of
life• PhysiologicalPhysiological• SepsisSepsis• PolycythemiaPolycythemia• Intraventricular hemorrhageIntraventricular hemorrhage• Increased entero-hepatic circulationIncreased entero-hepatic circulation
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Causes of jaundice
After 72 hours of ageAfter 72 hours of age• SepsisSepsis• CephalhaematomaCephalhaematoma• Neonatal hepatitisNeonatal hepatitis• Extra-hepatic biliary atresiaExtra-hepatic biliary atresia• Breast milk jaundiceBreast milk jaundice• Metabolic disorders (G6PD).Metabolic disorders (G6PD).
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Risk factors for jaundice
JAUNDICEJAUNDICE• JJ - jaundice within first 24 hrs of life - jaundice within first 24 hrs of life• A A - a sibling who was jaundiced as neonate - a sibling who was jaundiced as neonate
• U U - unrecognized hemolysis- unrecognized hemolysis• N N – non-optimal sucking/nursing– non-optimal sucking/nursing• DD - deficiency of G6PD - deficiency of G6PD• I I - infection- infection• CC – cephalhematoma /bruising – cephalhematoma /bruising• E E - East Asian/North Indian- East Asian/North Indian
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Diagnostic evaluation:
• Normal values of unconjugated B. are Normal values of unconjugated B. are 0.2 to 1.4 mg/dL.0.2 to 1.4 mg/dL.
• Investigate the cause of jaundice.Investigate the cause of jaundice.
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Therapeutic Management
• PurposesPurposes: reduce level of serum bilirubin : reduce level of serum bilirubin and prevent bilirubin toxicityand prevent bilirubin toxicity
• Prevention of hyperbilirubinemia: early Prevention of hyperbilirubinemia: early feeds, adequate hydrationfeeds, adequate hydration
• Reduction of bilirubin levels: Reduction of bilirubin levels: phototherapy, phototherapy, exchange transfusion, exchange transfusion,
• Drugs Drugs Use of Phenobarbital promote Use of Phenobarbital promote liver enzymes and protein synthesis.liver enzymes and protein synthesis.
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Babies under phototherapy
Baby under conventional phototherapy
Baby under triple unit intense phototherapy
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Maisel’s chart
Sr Bilirubin (mg/dl)
Birth weight
Age in hrs
< 24 24 – 48 49 – 72 >72
<5 All
5-9 All Phototherapy if hemolysis
10-14< 2500g Phototherapy
if hemolysis
PHOTOTHERAPY
> 2500gInvestigate if bilirubin
> 12mg%
15-19
< 2500gEXCHANGE
Consider ExchangePhototherapy
> 2500g
All
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Prognosis
• Early recognition and treatment of Early recognition and treatment of hyperbilirubinemiahyperbilirubinemia prevents severe prevents severe brain damage.brain damage.
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phototherapy
• In practice light is used in the white ,blue In practice light is used in the white ,blue and green>and green>
• A dose response relationship exists . A dose response relationship exists . Amount of irradiation directly propotion to Amount of irradiation directly propotion to decrease serum bilirubin .decrease serum bilirubin .
• The energy delivered to infant skin The energy delivered to infant skin decreased with increasing distance decreased with increasing distance between infant and light source (50cm)between infant and light source (50cm)
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phototherapy• Irradiating a large surface area is more Irradiating a large surface area is more
efficient efficient • Nature and character of the light source Nature and character of the light source
e.g (quartz halide spotlight )e.g (quartz halide spotlight )• Fibrostic light is also used in phototherapy Fibrostic light is also used in phototherapy
unit >unit >
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Key point in the practical execution of phototherapy
1- The infant should be naked except for 1- The infant should be naked except for diaper , eye to be covered diaper , eye to be covered
2- distance between the skin and light 2- distance between the skin and light source .source .
3-when used spotlight , the infant is placed 3-when used spotlight , the infant is placed in centre .in centre .
4- routinely add 10-15% extra fluid .4- routinely add 10-15% extra fluid .
5- timing of follow -up S.B testing must be 5- timing of follow -up S.B testing must be indevedualized. indevedualized.
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Adverse effect of photo therapy
• Photo therapy is associated with loose Photo therapy is associated with loose stool .stool .
• Increase risk of retinopathy.Increase risk of retinopathy.• The combination of phototherapy & The combination of phototherapy &
increased S.B can produce DNA strand increased S.B can produce DNA strand breakage .breakage .
• Skin blood flow is increased, redistribution Skin blood flow is increased, redistribution of blood flow may occur – PDA is reported of blood flow may occur – PDA is reported in premature.in premature.
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Adverse effect of phototherapy
• Hypocalcemia appears to be more Hypocalcemia appears to be more common in premature.common in premature.
• Concentration of certain aminoacid may Concentration of certain aminoacid may change.change.
• burn.burn.
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Nursing considerations of Hyperbilirubinemia
• Assessment:Assessment: observing for evidence ofobserving for evidence of
jaundice at regular intervals.jaundice at regular intervals. Jaundice is common in Jaundice is common in
the first week of life and the first week of life and
may be missed in dark skinned may be missed in dark skinned
babiesbabiesBlanching the tip
of the nose
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Approach to jaundiced baby
• Ascertain birth weight, gestation and Ascertain birth weight, gestation and postnatal agepostnatal age
• Ask when jaundice was first noticed Ask when jaundice was first noticed • Assess clinical condition (well or ill)Assess clinical condition (well or ill)• Decide whether jaundice is physiological or Decide whether jaundice is physiological or
pathologicalpathological• Look for evidence of Look for evidence of kernicterus*kernicterus* in deeply in deeply
jaundiced NBjaundiced NB
**Lethargy and poor feeding, poor or absent Moro's, or Lethargy and poor feeding, poor or absent Moro's, or convulsionsconvulsions
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Nursing diagnosis• See the high risk infant plan of care. See the high risk infant plan of care.
Plus:Plus: Body T.,Body T., risk for imbalanced T. related risk for imbalanced T. related
to use of phototherapy.to use of phototherapy. Fluid volumeFluid volume, risk for deficient related , risk for deficient related
to phototherapy.to phototherapy. Interrupted family process related to Interrupted family process related to
situational crisis, re hospitalization for situational crisis, re hospitalization for the therapy. the therapy.
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The goals of planning
• Infant will receive appropriate therapy if Infant will receive appropriate therapy if needed to reduce serum bilirubin needed to reduce serum bilirubin levels.levels.
o Infant will experience no complications Infant will experience no complications from therapy.from therapy.
o Family will receive emotional support.Family will receive emotional support.o Family will be prepared for home Family will be prepared for home
phototherapy (if prescribed).phototherapy (if prescribed).
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QUESTIONS?
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Reference
1-Dr. Nahed Al-Nagger2- manual of neonatal &pediatric intensive
nursing course