Extra uterine Growth NICU and Beyond - Blue...
Transcript of Extra uterine Growth NICU and Beyond - Blue...
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Extra uterine GrowthNICU and Beyond
Dr. Salima Al Aisari
MD,DCH,OMSB,MRCPCH,
Neonatal Fellowship
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Extra uterine growth retardation.
Historical Background.
Key competencies in Nutritional issues
Growth in NICU and beyond.
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What is EUGR
EUGR is defined as measured growth
parameter( weight, length or head
circumference) that is less than or equal to
10th percentile of intrauterine growth
expectation based on estimated postmenstrual
age in premature (23-34) weeks estimated
gestational age neonates at the time of
hospital discharge.
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Improving Child Nutrition
The achievable imperative for global progress
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Millennium Developmental Goal
MDG 1 – Poverty & hunger
Higher risk of early growth retardation - stunting
Developmental delay (Feeding the developing
brain)
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Developmental Origins of Health & Disease
“Fetal Programming”
Epigenetics is emerging as the hidden link between early life
exposure and late life events.
Under-nutrition during pregnancy & LBW are strongly associated with
HTN, obesity, insulin resistance and dyslipidemia later in life.
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Goals of Nutrition
Weight gain
Neurodevelopment
Organ maturity and functioning
Prevention of infection
Development of immune function.
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Warmth Infection control
Gavage Feeding
Early Feeding of Breast
Milk
Historical PERSPECTIVES Tarnier et Budin 1828-1907 at L’Hôpital Maternite at
in Paris Worked to develop the care of the “weakling
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Snap from the past
Hess and Lundeen, 1941
Advocated delay of feedings.
“… too early feeding may be the cause of aspiration pneumonia…
small premature babies (<1200 g) are not fed for 24-48 hours…[but]
receive physiologic salt solution, subcutaneously in the thighs, one
to three times daily.”
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An unfortunate legacy…….
Delayed feedings persisted for 25 years
Belief that such a practice prevented…
Aspiration pneumonia
Retention of excessive extracellular fluid, and
Subsequent stress on kidneys
Babies believed to be tough and able to tolerate
Hemoconcentration
Hyperosmolality
Hyperbilirubinemia
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1960• Delayed feedings associated with long-term neurological
developmental delays
1960s
• (Kagan and Babson): Some weight gain with the use of cow’s milk formulas
1970s• (Raiha): Importance of protein “quality” not quantity
1980s
• Development of special formulas (increased protein, minerals, vitwith MCT for (VLBW) infants
1990s• Development of commercial human milk fortifiers
2000
• TPN becomes standard of care for VLBW
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This century growth concern…..
Growth lags behind the “ in-utero”
counterpart.
Nutrient intakes are lower than in-
utero counterpart
Deficits may persist through
hospitalization and beyond
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Do we practice What we Know
The incidence of EUGR in very-low-birth-weight infants ranges
between 43% and 97%
NUTRIQUAL Group in France studies 279 preterms in 29 different NICUs
and the authors documented:
There was divergence between the intended and the actual practice
for both Protein and Lipid intake.
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Aggressive nutritional support of the very low birth weight preterm infant in the first week of
life is associated with improved initial and late growth
Rapid early growth is also linked to increased adiposity, which may cause later obesity,
increased blood pressure, and increased risk for cardiovascular disease
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The Underlying Question…
“Do you want a smart, tall, fat adult who will die prematurely of
cardiovascular disease or a dumb, short, thin adult who will
outlive the other?”
Richard Schandler, MD Neonatalogist
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Lapillonne et al. published “ Feeding Preterm Infants Today for
Later Metabolic and Cardiovascular Outcomes” in 2013,
reviewed the effects of fetal and postnatal growth, and early
nutrition on long-term cardiovascular and metabolic outcomes in
preterm infants.
Embleton et al. also studied Catch up growth and metabolic
outcomes in adolescents born preterm in 2016
Both documented early infancy nutrition in preterms doesn’t
affect metabolic status in adolescence.
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No time to waste
Present evidence suggests that even brief periods of
relative under nutrition during a sensitive period of
development have significant adverse effects on later
development
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Birth of LBW/preterm is a shock
Physiological stressors:
Temperature regulation
Breathing
Elimination
Separation
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Stressor of prematurity & FEAR FACTOR
Ventilation
Apnea/seizures
UAC/UVC
Critical illness
Sepsis
More
“Hold feeds”
“Hold feeds”
“Hold feeds”
“Hold feeds”
“Hold feeds”
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Factors independently associated with EUGR
Male Gender
Need for assisted
ventilation on day 1 of life.
History of NEC
Exposure to antenatal
steroids during the hospital
course.
EUGR
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Prevention of Growth Restriction
Adapted from Adamkin DH. Feeding the Preterm Infant. In: Bhatia J, ed. Perinatal Nutrition:
Optimizing Infant Health and Development. New York, NY: Marcel Dekker; 2005:165–190
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Unit Culture
Implementation of Evidence based Best-
practices
Doing right thing at right time in a right way
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Principles of Early Nutrition Early total parenteral nutrition
Amino acids 3-3.5 g/kg/d
Lipids 1-2 g/kg/d
Carbohydrate (glucose)
Early and aggressive enteral feed
Colostrum swabbing
Early enteral feeding starting with 15-20ml/kg/day
Feeding protocols
Mother’s own milk
Donor human milk
Appropriate fortification
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Typical Feeding ProgressionGestational Age (Weeks)
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
Pacifier Sucking (non-nutritive suck)
Gag Reflex
Rooting Reflex Early Intermediate Mature
Coordinate Suck,
Nutritive Suck Swallow, Breathe
TPN for 1-2 weeks as enteral Gradually start breast/ Infant nippling
feeds advance via tube bottle per infant cues all feeds
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Enteral nutrition: when, what, and how much?
When to feed? Timing of feed
What to feed? Types of milk
How to feed? NGT/OGT/TP
How fast to feed? Increment of feed
Feeding in babies w/ BA/ Sepsis/ inotropes/
UAC/ Apnea/ PDA
BM plus HMF/Ca/Iron/MV
DHA/ probiotics
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Enteral nutrition: when, what, and how much?
TPN versus enteral
EBM versus Formula
Early versus late
Slow versus aggressive
Population versus individuals
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Critiques feel it is Impossible!
Significant stressors of extra uterine environment.
Associated disease states of ELBWs,
And… iatrogenic failure with current approach
Embleton NE et al. Postnatal malnutrition and growth
retardation: an inevitable consequence of current
recommendations in preterm infants?
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Physical challenges to optimal nutrition
GI immaturities in the preterm infant include:
inability to coordinate breathing, sucking and swallowing
low esophageal sphincter pressure
delayed gastric emptying
slower upper and lower intestinal motility
immature digestion and absorption of carbohydrates, protein and lipids.
Preterm infants may therefore be at risk of acquiring abnormal bacterial
flora and developing nosocomial infections
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RelationshipBetween
Patient/Client/Group & Dietetics
Professional
-
Nutrition Diagnosis
➢Identify and label problem➢Determine cause/contributing risk factors ➢Cluster signs and symptoms/ defining characteristics
Nutrition Assessment➢Obtain/collect timely and appropriate data➢Analyze/interpret with
evidence-based standards➢
➢ Identify risk factors➢ Use appropriate tools
and methods➢ Involve
interdisciplinary collaboration
Screening &
Referral System
Outcomes Management System
➢ Monitor the success of the Nutrition Care Process implementation
➢ Evaluate the impact with aggregate data➢ Identify and analyze causes of less than
optimal performance and outcomes➢ Refine the use of the Nutrition Care
Process
ADA NUTRITION CARE PROCESS AND MODEL
➢Document
Nutrition Monitoring and Evaluation➢ Monitor progress➢ Measure outcome indicators ➢ Evaluate outcomes➢ Document
Nutrition Intervention➢Plan nutrition intervention• Formulate goals and
determine a plan of action➢Implement the nutrition
intervention• Care is delivered and
actions are carried out➢Document
Document
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Nutrition Beyond NICU
Approximately 30% of preterm infants remain below the 10th percentile for weight at 18 months, and about 20% at 7 to 8 years of age.
Key questions
Whether VLBW infants have special nutritional requirements in the post discharge period ?
Is post discharge nutrition also critical for later health and development?
Infants discharged with subnormal weight for CA should be supplemented or not ?
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Post-Discharge Premature Infant Nutritional Issues
Switch from ‘super-milks’ to standard milk
Slower growth in follow-up
Limited information/research on post- discharge nutrition
Lack of proper follow up
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Should we support post discharge fortification ?
1. One small trial found (n=39); provides some evidence that
multi nutrient fortification increases growth during infancy.
Further trials …
2. Two small trials of 246 infants; did not provide evidence that
multi nutrient fortification of breast milk for 3 or 4 months
after hospital discharge affected growth during infancy. One
trial did not find any statistically significant effects on
neurodevelopmental outcomes.
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The Kaufman Assessment Battery for Children (K-ABC) Mental Processing Composite score (mean,
SD) at 5 years as a function of breastfeeding status at time of discharge and corrected age (*) at
which infants were weaned off breastfeeding, in EPIPAGE cohort. ‡p adjusted for propensity score.
Rozé JC, Darmaun D, Boquien CY, et al. The apparent breastfeeding paradox in very preterm infants: relationship between breast feeding,
early weight gain and neurodevelopment based on results from two cohorts, EPIPAGE and LIFT. BMJ Open. 2012;2(2):e000834
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Thank you
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Goals
Minimize time to regain birthweight
Suggested fluid, protein, and energy intakes
Fluid: 135-150 mL/kg/d
Protein: 3.5-4 g/kg/d (4-4.5 g/kg <1000 g)
Energy: 110-135 kcal/kg/d
Expected growth after return to birthweight
Weight: 15-20 g/kg/d
Length: 0.75-1.0 cm/week
Head circumference: 0.75-1.0 cm/week
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Maintaining Breast Feeding
First 2-3 weeks
Use hand expression & compression w/ pumping
http://newborns.stanford.edu/Breastfeeding/MaxProduction.html
http://newborns.stanford.edu/Breastfeeding/HandExpression.html
Pump w/ double electric pump
Empty breasts at every pumping
Pump q 2-3 hrs/day & 1x/night (not to exceed 4 hrs)
Pump 7-10x/24 hours while establishing supply
After first 2-3 weeks (if adequate milk supply)
Pump q 4hr/day & 1x/night (not to exceed 5 hrs)
Pump 6-8x/24 hours
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Normative Growth Data
Weight increases by 208gm/week from 28weeks gestation to 6 months.
Length increases by 1.1cm/week from 28weeks gestation to 40weeks
Head circumference increases by 0.75 cm/week during last trimester
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Growth Indicators Stunting (inadequate length/height for age) captures
early chronic exposure to under nutrition.
Wasting (inadequate weight for height) captures acute
under nutrition.
Underweight (inadequate weight for age) is a composite
indicator that includes elements of stunting and
wasting.
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Caloric Supplementation
Indications
1. Flat or decelerating growth curve pattern
2. Volume restricted (severe BPD, cardiac disease)
3. Unable to take enough
Monitor for dietary intolerance (GI symptoms, bloody
stools), hydration status
If increased caloric supplementation does not improve
growth further evaluation by endo., GI, dietitian