neonatL resuscitation

NEONATAL RESUSCITATION
moderated by Dr. B M CHANDRAKUMAR
presented by Dr. Vijay khodifad

What is neonatal resuscitation ?
Assessment of the fetus at birth
Identification of the babies requiring resuscitation
Initial steps of resuscitation
Pulmonary resuscitation
Vascular Resuscitation
Termination of resuscitation

Neonatal Resuscitation?
• Series of actions, used to assist newborn babies
who have difficulty with making. the
physiological ‘transition’ from the intrauterine to
extrauterine life

• Most newborns are vigorous at birth.
• Approximately 10% will require some
assistance at birth to begin breathing.
• Less than 1% will require extensive
resuscitation.

RESUSCITATION EQUIPMENTS
• General: Resuscitation bed, over head warmer
(servo-controlled infrared heater), towel,
stethoscope, pulse oximeter
• Airway Mangement: Suction device with
Suction catheter ; Bulb syringe, laryngoscope
with blades (size 00 and 0); ETT (size 2.5, 3.0,
3.5); EtCO2 detector; LMA (size 1)

• Breathing support: Facemask; PPV device, O2
gas, feeding tube,
• Circulation support: UVC kit, iv kit, io
needle,
• Drug and fluids:
Adrenaline(1;10000/0.1mg/ml), NS, Blood

Assessment of the newborn at birth
Cord clamping
• In the compromised newborn, the optimal
timing of cord clamping remains unknown
• The more severely compromised the
newborn the more likely it is that
resuscitation measures need to take
priority over delayed cord clamping

Initial Assessment: APGAR score
• Assesses neonatal well-being &
resuscitation.
1-min score 🡆Acidosis and Survival
5-minute score🡆Neurologic outcome.
• Each variable must be evaluated at 1 and
5 minutes.

APGAR SCORE
Sign 0 1 2
Color Blue Body pink , Completely
(Appearance) Pale Extremities
blue
pink
Heart Rate
(Pulse)
Absent < 100/min > 100/min
Reflex Irritability
(Grimace)
Absent Grimace Cough ,
sneeze
Muscle Tone
(Activity)
None Some flexion
of extremities
Active
movement
(Respiratory Effort) Absent Slow , Good , crying

APGAR Score 5-7
• Suffered mild asphyxia
just before birth.
-Respond to
vigorous stimulation
-Oxygen blown
over the face.

Apgar Score 3-4
• These Neonates are moderately
depressed at birth.
• They are usually cyanotic and have poor
respiratory efforts.
• But they usually respond to BMV,
breath, and become pink.

Apgar Score 0-2
• These
neonates
severely
asphyxiated
and require
immediate
resuscitation

Which babies need resuscitation?
Newborn rapidly assessed for
● Term gestation? ●Crying or Breathing?
● Good muscle tone?
If “yes,” for all 3 questions
Baby does not need resuscitation and
should not be separated from mother.

• If “no,” for of any of the assessment
questions

• Infant should receive one or more of the
following action in sequence:
1. Initial steps in stabilization
2. Ventilation
3. Chest compressions
4. Administration of epinephrine
and/or volume expansion

(“the Golden Minute”)
• ≈60 sec for initial steps, reevaluating, and
beginning ventilation if required.
• The decision to progress beyond initial
steps is determined by simultaneous
assessment of:
▫ Respirations (apnea, gasping, or
labored or unlabored breathing)
▫ HR (whether < 100/min or > 100/min)

• HR is assessed by intermittently
auscultating the precordial pulse.
• When pulse detectable, umbilical pulse
palpation provide rapid estimate and is
more accurate than other sites.

• Pulse oximeter takes 1-2 min to apply,
• May not function during states of very
poor CO or perfusion
• Provide continuous assessment without
interruption of other resuscitation measures

• Once PPV or supplementary O2 administration
begun, assessment consist of simultaneous
evaluation of:
▫ HR, Respirations, and State of
oxygenation.
• The most sensitive indicator of a successful
response to each step 🢡 ↑ in HR.

Anticipation of Resuscitation Need
• Anticipation, adequate preparation, accurate
evaluation, and prompt initiation of support
are critical for successful neonatal
resuscitation.

• At every delivery 🢡 at least 1 person
required whose primary responsibility is the
newly born.
• This person must be capable of initiating
resuscitation, including administration of PPV
and chest compressions.

• Someone else promptly available have the skills
to perform a complete resuscitation, including
endotracheal intubation and administration of
medications.
• Majority of newborn who will need
resuscitation can be identified before birth.
• If a preterm delivery(<37weeks) is expected,
special preparations will be required.

NEWBORN RESUSCITATION ALGORITHM

• The baby dried, placed skin-to-skin with the
mother, and covered with dry linen to maintain
temperature.
• Observation of breathing, activity, and color
should be ongoing.

Temperature Control
• VLBW (<1500 g)
preterm babies are likely
to become hypothermic
despite the use of
traditional techniques for
decreasing heat loss.

Additional warming techniques :
• Prewarming the delivery room to 26°C,
• Covering the baby in plastic wrapping
(food or medical grade, heat-resistant
plastic)
• Placing the baby on an exothermic
mattress ,
• Placing the baby under radiant heat .

Clearing the Airway
When Amniotic Fluid Is Clear
• Deep Suctioning is avoided
▫ nasopharynx 🢡 bradycardia during
resuscitation.
▫ trachea in intubated babies receiving MV at NICU
🢡deterioration of pulmonary compliance,
oxygenation and ↓ CBF.

• However, suctioning in the presence of
secretions can decrease respiratory
resistance.
• Suctioning immediately following birth
should be reserved for babies who have
obvious obstruction to spontaneous
breathing or who require PPV.

When Meconium is Present
• Meconium-stained depressed infants
are at increased risk to develop Meconium
Aspiration Syndrome(MAS)
• Tracheal suctioning has not been
associated with reduction in the incidence
of MAS or mortality in these
infants.

• “Pea soup" or particulate meconium
should be removed from the lung before
breathing is established to improve the
survival of neonates with meconium
aspiration.
• Thin, watery meconium does not
require suctioning.

• Chest physical therapy and postural
drainage done every 30 min for 2 hrs and
hourly thereafter for the next 6 hrs may
help remove residual meconium from the
lung.
• All neonates born after meconium aspiration
should be observed for 24 hrs because they
can develop Persistent Fetal Circulation
syndrome.

• In the absence of randomized, controlled
trials, there is insufficient evidence to
recommend a change in the current practice
of performing endotracheal suctioning of
nonvigorous babies with meconium- stained
amniotic fluid.

Assessment of oxygen need
• PaO2 uncompromised babies generally do not
reach extrauterine values until ≈10 min
following birth.
• SpO2 may normally 70% -80% for several
minutes following birth 🢡 Cyanosis.
• Optimal management of oxygen is
important because either insufficient or
excessive oxygenation can be harmful

Supplementary Oxygen
• Meta-analyses comparing room air versus
100% oxygen showed increased survival when
resuscitation was initiated with air.
• Escrig R et al found that in preterm, initiation
of resuscitation with a blend of oxygen and air
resulted in less hypoxemia or hyperoxemia
than with either air or 100% oxygen followed
by titration.

•If the baby is bradycardic
(HR<60/min) after 90 seconds of
resuscitation with a lower
concentration of oxygen, oxygen
concentration should be
increased to 100% until recovery
of a normal HR.

PPV
• If newborn apneic or gasping, or if the HR
< 100/min after the initial steps 🢡 Start
PPV.
Initial Breaths and Assisted Ventilation
• Initial inflations following birth, either
spontaneous or assisted, create FRC.

• The primary measure of adequate
initial ventilation is prompt
improvement in HR.
• Chest wall movement should be
assessed if HR does not improve.

• An initial peak inflation pressure of 20 cm
H2O is effective, but 30-40 cm H2O may be
required in some term babies.
• If pressure is not being monitored, the
minimal inflation required to achieve ↑ in
HR should be used.
• Assisted ventilation @40-60 breaths/min to
promptly achieve or maintain >HR 100/min.

CPAP
• Recommended in preterm newborn
who are breathing spontaneously, but
with difficulty.
• Starting infants on CPAP, ↓ the rates of
intubation and MV, surfactant use, and
duration of ventilation, but ↑ rate of
pneumothorax.

PEEP versus no PEEP
• Although PEEP is beneficial and used routinely
during MV of neonates in NICU, there have
been no studies specifically examining PEEP
versus no PEEP when PPV is used during
establishment of an FRC following birth.
• PEEP is likely to be beneficial and should be
used if suitable equipment is available .

PPV delivery devices
• T-piece device is preferred. PIP for term @30 cm
H2O; Preterm @20-25 cm H2O; PEEP: 5-8 cm H2O;
Max pressure relief valve: 50cm H2O
• Self inflating bag: Pressure release valve@
≈40 cm H2O; cannot effectively deliver CPAP,PEEP
or sustained inflation breaths
• Flow inflating (or anaesthetic) bag

Laryngeal Mask Airways
• LMA are effective for ventilating newborns
weighing > 2000 g or delivered ≥ 34 weeks
gestation.
• limited data on the use of these devices in
small preterm infants(<2000g; <34 wk).
• LMA should be considered if facemask
ventilation is unsuccessful and tracheal
intubation is unsuccessful or not feasible.

Endotracheal Tube Placement
INDICATIONS:
• Initial endotracheal suctioning of non
vigorous meconium stained newborns.
• If BMV is ineffective or prolonged.
• Newborns born without a detectable HR
• Expected need for continued or prolonged
ventilation
• For special resuscitation circumstances, such as
CDH and ELBW.

• An appropriate size ETT should be
inserted and the tip of the tube placed 1
to 2 cm below the vocal cords.
• Distance from the tip of the tube to the
gums is 7, 8, 9, or 10 cm in 1-, 2-, 3-, and
4-kg infants, respectively.

• A small gas leak should be present between
the ETT and trachea when ventilation
pressure is 15-25 cm H2O.
Appropriate size of the tube
• 2.5 mm tube for neonates weighing < 1.5 kg,
• 3.0 mm tube for 1.5-2.5 kg,
• 3.5 mm tube for > 2.5 kg.

• Prompt ↑ HR is the best indicator that the
tube is in the tracheobronchial tree and
providing effective ventilation.
• Exhaled CO2 detection is the recommended
method of confirmation of ETT placement.
• Poor or absent pulmonary blood flow may
give false-negative results (ie, no CO2
detected despite ETT in the trachea).

• Other clinical indicators of correct
endotracheal tube placement are
▫ Condensation or mist in the ETT,
▫ Chest movement,
▫ Presence of equal breath sounds
bilaterally,
▫ Improvement in skin color and SpO2.

• Because the chest is small, breath sounds
are well transmitted within the thorax.
• A difference in breath sounds between the
two sides of chest should raise suspicion of
pneumothorax, atelectasis, or a congenital
anomaly of the lung.

• Presence of loud breath sounds over the
stomach suggest Tracheoesophageal
Fistula.
• Failure to adequately ventilate the lungs
at birth may make hypoxemia worse and
lead to CNS damage or even death.

• If the PaO2 > 70-80 mm Hg or SaO2 >94%, FiO2
(if higher FiO2 is used) should be reduced
untill SaO2 and PaO2 are normal for age.
(normal SaO2 ≈87-95%, which is associated
with a PaO2 of 55-70 mm Hg)
• Retinopathy of prematurity can occur in
premature neonates(<34 wks gestation) with
a PaO2 of ≈150 mm Hg for 2-4 hrs.

Administration of Surfactant
• Its use resulted in significant improvement in the
outcome of preterms.
• The incidences of pulmonary gas leaks, HMD
deaths, BPD, and pulmonary interstitial
emphysema are lower after surfactant use.
• Administered as liquid (Survanta@4mL/kg;
curosurf@2.5ml/kg into trachea at birth).

CARDIAC MASSAGE
• indicated when HR < 60/min despite
adequate PPV with O2 for 30 seconds.
• Rescuers should ensure that assisted ventilation
is being delivered optimally before starting chest
compressions because
▫ ventilation is the most effective action and
▫ chest compressions are likely to compete with
effective ventilation,

• Compressions should be delivered on the
lower third of the sternum to a depth of
≈1/3rd of the AP diameter of the chest.
• Two techniques:
▫ compression with 2 thumbs with fingers
encircling the chest & supporting the back
▫ compression with 2 fingers with a second hand
supporting the back.

• The 2 thumb–encircling hands
technique may generate higher
peak systolic and coronary
perfusion pressure than the 2-
finger technique, So
recommended in newborns

• Compressions and ventilations should be
coordinated to avoid simultaneous delivery.
• The chest should be permitted to reexpand fully
during relaxation, but the rescuer’s thumbs
should not leave the chest.
• compressions to ventilations ratio 3:1 (i.e.
≈120 events/min to maximize ventilation at 90
compressions and 30 breaths

• Thus each event will be allotted ≈1/2sec, with
exhalation occurring during the first
compression after each ventilation.
• A 3:1 compression to ventilation ratio is used
where ventilation compromise is the primary
cause, but rescuers should consider using higher
ratios (eg, 15:2) if the arrest is believed to be of
cardiac origin.

• Respirations, HR and oxygenation should be
reassessed periodically, and coordinated chest
compressions and ventilations should continue
until the spontaneous HR ≥60/min.
• Avoid frequent interruptions of compressions, as
they will compromise artificial maintenance of
systemic perfusion and maintenance of coronary
blood flow.

• If the neonate's condition does not
improve rapidly with ventilation and
tactile stimulation, an umbilical artery
catheter should be inserted.
• Most preterm neonates weighing < 1250
gram at birth and 1-3% of term neonates
require an umbilical artery catheter during
resuscitation.

Umbilical venous catheter (UVC)
• Most rapidly accessible intravascular route
▫ to administer drugs (Adrenaline);
▫ for fluid administration to expand blood
volume,
▫ to measure blood gase, pH and arterial
BP,
• Provide continued vascular access until an
alternative route is established

RESUSCITATION DRUGS
• Bradycardia is usually the result of
inadequate lung inflation or profound
hypoxemia, and establishing adequate
ventilation is the most important step.
• if the HR remains < 60/min despite one
minute of adequate ventilation and chest
compressions with100% O2,adrenaline or
volume expansion or both are indicated

• IV is the preferred route: UVC is
preferable to intraosseous
• Recommended IV dose is 0.01-0.03
mg/kg/dose; rapid bolus followed by
1ml of 0.9% NS flush

• Intratracheal dose is higher(0.05 to 0.1
mg/kg); 1:10,000 (0.1 mg/mL); may be
considered while IV access is being
obtained; Follow with PPV – Flush not
recommended
• Can be repeated every 5 minutes, if HR
remains < 60/min.

Volume Expansion
Detection of Hypovolemia
• measuring the arterial BP and
• by physical examination (i.e. pale skin color, have
poor capillary refill time, poor skin perfusion,
extremities are cold, and pulses (radial and
posterior tibial) are weak or absent, and
temperature).

• CVP measurements are helpful in detecting
hypovolemia and in determining the adequacy
of fluid replacement.
• Normal CVP in neonates is 2-8 cm H2O.
• If CVP < 2 cm H2O, hypovolemia suspected.

Treatment of Hypovolemia
• The key is intravascular volume expansion.
• Best be done with blood and crystalloids
• If hypovolemia is suspected at birth, Rh-
negative type O PRBCs should be available in
delivery room before neonate is born.

• Crystalloid and blood should be titrated in 10
mL/kg and given slowly over 10 minutes.
• At times, >50% of the blood volume (85 mL/kg
in term; and 100 mL/kg in preterm) must be
replaced, especially when the placenta is
transected or abrupted.
• In most cases, <10-20 mL/kg of volume
restores mean arterial pressure to normal.

• Care should be taken to avoid giving volume
expanders rapidly, because rapid infusions of large
volumes have been associated with hypertension
and IVH.
• Hypertension may disrupt the intracerebral
vessels and cause intracranial hemorrhage if
cerebrovascular autoregulation is absent.

Postresuscitation Care
• Babies who require resuscitation are at risk for
deterioration after their vital signs have returned
to normal.
• Once adequate ventilation and circulation have
been established, the infant should be
maintained in, or transferred to an environment
where close monitoring and anticipatory care
can be provided.

Monitoring required may include:
• Oxygen saturation(SpO2)
• Heart rate and ECG
• Respiratory rate and pattern
• Blood glucose measurement
• Blood gas analysis
• Fluid balance and nutrition
• Blood pressure
• Temperature
• Neurological

Role of Glucose
• Newborns with lower blood glucose levels are
at ↑ risk for brain injury so maintain BGL >2.5
mmol/L.
• If the blood glucose concentration is low,
bolus of glucose (0.5 to 1.0 mL/kg of 10%
dextrose) and constant infusion of 5-7
mg/kg/min intravenously is given .

Induced Therapeutic Hypothermia
• Infants born ≥36 weeks gestation with evolving
moderate to severe hypoxic- ischemic
encephalopathy should be offered therapeutic
hypothermia (33.5-34.5⁰C).
• The treatment according to the studied
protocols include commencement within 6 hrs
following birth, continuation for 72 hrs, and
slow rewarming over at least 4 hours.

Guidelines for Withholding and
Discontinuing Resuscitation
• It is based on the physician's experience and
desires of the parents.
• In making the decision, the physician must
consider the probability of neurologic damage
and chances of a productive, useful life are poor,
consideration should be given to discontinuing
all resuscitative efforts.

Withholding Resuscitation
• It may be considered reasonable, when there have
been conditions with poor outcome (i.e.
gestation, birth weight, or congenital anomalies
are associated with almost certain early death or
unacceptably high morbidity is likely among the
rare survivors) and opportunity for parental
agreement, (eg <23 wk gestation; BW<400g;
trisomy 13)

• conditions with ↑rate of survival, acceptable
morbidity (with ≥ 25 wks gestation and with
most congenital malformations, resuscitation
is always indicated.
• Conditions with borderline survival, high
morbidity rate and uncertain prognosis,
parental desires concerning initiation of
resuscitation should be supported.

Discontinuing Resuscitative Efforts
• In a newly born baby with no detectable HR,
resuscitation are discontinued if the HR
remains undetectable for 10 min.
• resuscitation efforts beyond 10 min with no
HR should be considered if presumed
etiology of the arrest, gestation of the baby,
and the parental desire.

LETSGIVEOURNEWBORNAGOODSTART!
Thanks……..

Risk factors for neonatal resuscitation
Maternal
• PROM (> 18 hours)
• Bleeding in 2nd or 3rd
trimester
• PIH
• Substance abuse
• Drug
• Diabetes mellitus
• Chronic illness
• Maternal pyrexia
• Maternal infection
• Chorioamnionitis
• Heavy sedation
• Previous fetal or
neonatal death
Fetal
•Multiple gestation
•gestation (< 35 wks; >41
wks)
•Large for dates
•IUGR
•Alloimmune haemolytic
disease
•Polyhydramnios and
oligohydramnios
•Reduced fetal movement
before onset of labour
•Congenital abnormalities
which may effect breathing,
cardiovascular function or
other aspects of perinatal
transition
•Intrauterine infection
•Hydrops fetalis
Intrapartum
•Non reassuring FHR
patterns on CTG
•Abnormal presentation
•Prolapsed cord
•Prolonged labour
•APH(e.g. abruption,
placenta praevia, vasa
praevia)
•Meconium in the amniotic
fluid
•Narcotic administration to
mother within 4 hours of
birth
•Forceps birth
•Vacuum-assisted
(ventouse) birth
•Maternal GA

neonatL resuscitation

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