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CHAPTER 13 The Neonate and the Environment Impact on Development
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359
handling.
170
Less touching by the nurse within
the 2 hours before parental holding results in less mean decrease in heart rate during parental holding.
170
Parents provide more
positive touch (kissing and stroking); preterm infants are more likely to smile and sleep for their parents compared with responses after a
nurse’s touch. In animal studies, increased parental touching in infancy results in changes in brain structure, decreased levels of stress hormones, and better ability to survive a stressful environment.
437
Parental touch of preterm humans enables them to withstand the stress of illness and the NICU environment. Recent research on
somatosensory processing found that the degree of prematurity at birth determines the extent to which the immature brain responds to light touch, so that supportive experiences (such as
breastfeeding and skin-to-skin contact) are associated with stronger brain responses, and painful stimuli are associated with a reduced brain response to the same touch stimuli.
259
Nonpainful touch such as stroking (of the head, trunk, or hands) during care may calm, soothe, and prevent touch aversion. Stroking of physiologically
stable preterm infants has been associated with increased activity and alertness, a faster regain­ing of birth weight, more rapid weight gain, less crying and apnea, enhanced developmental status, and better social scores.
169,171
In another
study, systematic stroking of ventilated preterms resulted in no adverse effects on oxygenation and respiratory or heart rates.
104
However, in
preterm infants (26–30 weeks’ gestation) who are not physiologically stable, stroking results in decreased oxygen saturation, signs of behavioral stress (e.g., grasping, grunting, gaze aversion), and more avoidance cues (e.g., grimacing, yawning, fussing or crying, tongue protrusion).
Other behavioral and physiologic effects include heart rate and blood pressure changes, changes in respiratory rate and rhythm, increase in avoidance signals (e.g., increased startle reflex, agitation, crying), increase in activity and movement, and decreased visual responsivity.
99,170,241,307
If the preterm infant becomes agitated with strok­ing, a hand firmly placed on the head and lower back, buttocks, or abdomen often quiets.
91,169
Hand place-
ment without stroking does not decrease oxygen saturation or alter heart rate and has a soothing effect (i.e., decreases active sleep, increases
quiet sleep, decreases respiratory and heart rates, decreases motor activity and behavioral distress) on small preterm infants.
171,172,188,285
Handle gen-
tly to avoid stressful reactions (e.g., flailing, arch­ing, oxygen desaturation) and enable the infant to become calm and rest between caregiving.
Parents should be taught and encouraged to provide their preterm with “gentle human touch”
169,285
in the form of supportive containment with their hands, use of gradual and rhythmic action, observation of infant responses (see Table 13.4), and modification, alteration, or cessation of touch when necessary.
169,171
Therapeutic touch (TT), a complementary
therapy of balancing and increasing energy to promote healing, does not require physical
contact, as hands are suspended over the body. A randomized double blind study of the use of TT on 10 physiologically fragile, very preterm infants showed no adverse effects (i.e., oxygen desaturations or apnea). is indicated.
Massage. The touching and stroking of massage
388
451
Clearly more research
stimulate nerve pathways and aid myeliniza­tion by increasing hypothalamic activity and production of the growth hormone somatotro- pin. In animal studies, touch deprivation decreases
growth hormone secretion, which results in undergrowth of all organ systems; a return to normal secretion occurs with tactile stimula-
374
tion.
Massage affects the maturation of the brain’s electrical activity and simulates intrauter­ine development as observed in term infants.
166
A growth gene that responds to tactile stimulation has been discovered; this suggests a genetic origin for the touch-growth relationship.
134
Because touch stimulation of the inside of a neonate’s mouth increases the release of gastrointestinal food absorption hormones (i.e., gastrin, insulin), it is postulated that the tactile stimulation of massage leads to a similar hormone release. Assays of glucose and insulin levels in heelstick samples of preterm infants suggest that massaged infants show increased levels of insulin.
134
Research on massage therapy with preterm
infants has been conducted on medically stable, growing infants (i.e., preterm growers). A recent
systematic review found clear benefits of massage in hospitalized preterm infants.14 Despite positive outcomes of massage research in Table 13.7 and its cost effectiveness in decreasing length of stay, only
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TABLE
13.7
BENEFITS OF MASSAGE WITH PRETERM INFANTS: RESEARCH BASIS
STUDY RESULTS
Three times/day massage of preterms with physiologic and biochemical measurements
373
21% increase in daily weight gain Discharged 5 days earlier Superior performance on habituation Fewer stress behaviors (mouthing, grimacing, clenched fists) Increase in catecholamine secretion in neonatal period (analogous to the normal
developmental increase after birth)
Increase in vagal activity
10 healthy preterm “growers”: three times/day massage for 15 min in a randomized sequence of 5 days of massage and 5 days without massage
217
Massaged for 15 min three times/day for 5 days: 68
preterms (mean GA = 30 wk) with either light- or moderate-pressure massage
135
80 preterms randomized to moderate-pressure massage or
standard care
72 preterms randomized to massage or control therapy
106
107
Energy expenditure significantly lower after 5 days of massage than after 5 days without
massage in metabolically and thermally stable preterms
Decreased energy expenditure may contribute to enhanced growth caused by massage Fewer stress behaviors and less activity from first to last day of the study
Moderate-pressure group: significantly more daily weight gain; more relaxed, less
aroused than light-pressure group
Increase in vagal activity and gastric motility, which may contribute to greater weight
gain in massaged preterms
Greater increase in body temperature in massage versus control preterms (even though
incubator portholes were open for the massage but not for the control group)
Massaged or exercise for 10 min three times/day for 5 days
30 preterms randomized to moderate-pressure massage or
passive flexion and extension of limbs
21 preterm infants (8 males and 13 females)
108
:
Greater weight gain in both massage and exercise groups due to different mechanisms:
• Massage increased vagal tone
• Exercise increased calorie consumption
389
Massaged male infants had improved autonomic nervous system function during
caregiving and sleep compared with nonmassaged male preterms. There was no difference in heart rate variability between massaged and nonmassaged female preterm infants.
40 stable preterm infants randomized to 20 minutes of
massage twice daily for 4 days or no massage
33
Lower level of transcutaneous bilirubin and more defecation in massaged versus
non-massage group.
389
33
Mother Massage
104 VLBW infants (≥750 to ≤1500 g; ≤32 wk GA) randomized to control or standard care with maternal massage four times/day of face and limbs with passive limb
281
exercises 66 stable preterm infants (32 massaged by their mother; 34
control group)
1
Medically stable preterms (33–37 wk GA; BW 1500– 1999g) randomly assigned to massage group or massage with sunflower oil by their mothers three times/day for 14 consecutive days
129
Eight minutes of mother massage of preterms within 24 hours of discharge and repeated on day of discharge
Olive oil massage for 10 days, three times/day for 15 minutes versus massage without olive oil
BW, Birth weight; CA, corrected age; GA, gestational age; LOS, length of stay; NICU, neonatal intensive care unit; VLBW, very low birth weight.
Significantly lower incidence of late-onset sepsis Discharged from the hospital 7 days earlier Improved neurodevelopmental outcomes at 2 years CA with massage
343
Lower pain scores after massage with heelstick and at discharge; higher cognitive scores
at 12 months’ CA compared with control group. No difference in weight gain, LOS, breastfeeding duration, and motor skills between two groups.
Oil massage group: mean weight at 1 month and 2 months of age significantly greater
than body massage alone group
Less maternal anxiety on the day of discharge when mothers massaged their preterm
3
infants
3
Daily average weight gain with olive oil massage (21 g) compared to weight gain of
191
7 g without olive oil
191
CHAPTER 13 The Neonate and the Environment Impact on Development
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361
38% of NICUs practice massage on their stable preterm infants.
136,439
Massage therapy provides social touch rather than painful touch, prevents or treats touch aversion, and should be taught to and provided by parents in the hospital and at home.
276
Confidence in parenting skills and tactile commu­nication between parents and infant is encouraged when parents massage their infant. Because mas-
sage has not been studied in acutely ill preterm infants, its use should be confined to preterm growers.
134,429
Chronically ill infants (e.g., babies with BPD or congenital heart disease) may exhibit physiologic and behavioral disorganization with massage, so the risk-benefit ratio must be assessed carefully. The M technique, used for fragile infants who do not tolerate conventional massage, is a gentle, structured stroking technique that reduces stress and anxiety. Outcomes of those exposed to the M technique included (1) lower heart rate, (2) increased oxygen saturations, (3) increase in quiet sleep, and (4) fewer behavioral distress cues.
388
Varying sensations and touch patterns keep infants interested in stroking and massaging. As a preterm infant matures and is able to tolerate variety, he or she should be introduced to different textures (e.g., lambskins, stuffed toys, cotton, satin). Baby clothes provide various textures, decrease heat loss (especially hats), and make the infant more attractive. (“He looks like a real baby!”; “She looks like a girl because her shaved head is covered!”)
Holding. When the infant is preterm or a sick
term baby, holding him or her—an essential step of parent attachment—is disrupted. Some
NICUs promote parental holding as soon as pos­sible, whereas others have specific protocols about weight criteria and extubation before parents are able to hold their infant.
143
A national survey on holding policies found (1) written protocols for conventional holding (26%) and for KC (40%), (2) for extubated infants: 73% offered KC, 99% conventional holding, and (3) for holders of extubated babies: mothers 73% KC, fathers 68% KC, and 99% conventional holding for both parents.
143
Potential benefits of enhanced par­ent-infant interaction and attachment, closeness of parents to their infant, increased lactation, and improved parental self-esteem are factors that influence staff to facilitate holding.
143
A prospective cohort study of parental pres­ence and holding in the NICU found significant neurobehavioral benefits for preterm infants less
than or equal to 30 weeks’ gestation.
354
parenting (i.e., holding) in the NICU resulted in lower arousal and excitability, better quality of movement, less stress, and less hypertonic muscle tone, thus a developmental advan-
354
tage.
Another study conducted in an urban NICU with low levels of parental presence and holding compared the neurodevelopmental outcomes of preterm infants (<30 weeks’ ges­tation) cared for in single-family rooms versus open ward NICU rooms.
337
The study outcome showed that at age 2 years, children cared for in the private rooms had lower language acquisition, more externalizing behaviors, and a trend toward lower motor scores than those in open wards. The researchers were surprised by their findings and remarked on the relative sensory depriva-
tion of the preterms in private rooms whose parents were not often present and handling their infants. Long periods of sensory depriva­tion—lack of parental presence, holding, and auditory stimuli—may be as detrimental as the sensory overload of a noisy, open NICU.
A qualitative study of factors affecting parental presence found that active involvement in the care of their extremely preterm infants, including skin-to-skin holding, increased their motivation to be present and their feelings of control. Factors discouraging parental presence included excessive noise38 and light levels in the NICU and dismissive staff attitudes.
176
A more recent study of predictors of parental involvement in the care of their premature infants (n=81; <32 weeks’ gestational age) found that being Caucasian, older, married, employed, having fewer children, having familial support, and providing breastmilk were all associated with more parental presence.
339
holding of the infant was associated with fewer medical interventions, an employed father, being Caucasian, fewer children, and having family sup­port. Outcomes of parental holding resulted
in better reflex development at term age, and skin-to-skin holding resulted in better reflexes and less asymmetry at term and better gross motor development at 4 to 5 years of age. Communicating to parents the importance of their presence and their care for their baby, as well as providing a welcoming, nurturing, and comfortable place for parents is the responsi­bility of all the NICU staff, especially nurses.
KC (Fig. 13.1), skin-to-skin contact between
parents and infant by placing the infant in a
Early
337
176
More
339
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vertical position between the maternal or paternal breasts, benefits both parents and neonates (Box
13.6). Another position, “supported diagonal flexion,”
for skin-to-skin care has been studied to facilitate more face-to-face exchanges between mother and infant in the NICU.62 Supported diagonal flexion
resulted in more eye contact between mothers and their infants, more maternal vocalizations, caressing, and decreased postpartum depression scores without altering physiologic stability in the premature infants. KC for the healthy preterm has
been used in the delivery room, in the transitional period (see Chapter 5), for adoptive parents, and for transport. National surveys of holding/KC have been conducted and have found that KC is practiced more commonly in subspecialty (level III) than in specialty (level II) care NICUs.
120,143
KC is well tolerated in the first week of life by preterm infants with current or resolving neonatal illness. KC of preterm infants for even 1 hour has been shown to provide benefits: sig­nificant decrease in heart and respiratory rates and increased temperature and oxygen satura­tions, especially in SGA and female preterms.47
An RCT of healthy preterms (33–35 weeks’ GA) found that KC for 3 hours improved breathing patterns and resulted in no apnea or bradycardia
or periodic breathing or temperature instability.
248
KC improves gas exchange in preterm infants of less than 1800 g. The smallest infants (<1000 g) remained more clinically stable (i.e., smallest increase in heart rate, highest decrease in respiratory rate and increase in oxygen saturation, no hypother­mia) compared with infants larger than 1000 g.
141
A randomized study of three holding methods (i.e., KC, cuddled, and a no restrictions method) in preterms between 32 to 35 weeks’ gestation
concluded that both KC and cuddled holding by parents may provide equal developmental
FIGURE 13.1 Kangaroo care.
BOX
13.6
BENEFITS OF SKIN-TO-SKIN CONTACT/KANGAROO CARE
Parental
• Activates maternal/paternal processes of search for meaning and mas­tery of the experience of premature birth
• Increases maternal/paternal self-confidence, competence, and self-es­teem; lower levels of stress related to “incompetence”
• Enhances parent-infant attachment
• Increases parental oxytocin levels ing in decreased anxiety levels
• More stress in mothers of late-preterm infants related to more facilitated progression of the mother-infant relationship
• Initiates and maintains maternal/paternal behavior
• Positively affects mother’s mood/behavior; less maternal depression; calming (decrease in salivary cortisol levels)
• Favorable impact on maternal parasympathetic nervous system as mea­sured by heart rate variability
• Lowers parental heart rate and blood pressure
• Positive and personally beneficial experience
139
83
432
and decreased cortisol levels result-
83,90
369
41,83,303
64
197
• Positively affects parental identity and knowledge of infant affects the process of becoming a parent
• Increases confidence in meeting infant’s needs
• More frequent visiting
• Parental eagerness for infant’s discharge
• A restoring experience and an energy-draining experience
• Long term:
• More consistent/contingent maternal/paternal responses at 15
months of age
• More sensitive, less intrusive, more reciprocal interactions from 6
months to 2 years from both mothers and fathers
• More affectionate touch, more adaptive to infant signals, and infants
more alert during interactions at 3 to 6 months
• Less maternal/paternal separation anxiety at 6 months
• Improved family cohesiveness
• Fewer reports of difficulties with breastfeeding
• 20-year follow-up of original cohort: parents more protective and nurturing
18
363
; positively
18
79
Continued
BOX
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13.6
CHAPTER 13 The Neonate and the Environment Impact on Development
BENEFITS OF SKIN-TO-SKIN CONTACT/KANGAROO CARE—CONT’D
363
Neonatal
• Thermal synchrony: mother’s body temperature rises and falls to main­tain infant in neutral state (see Chapter 6)
• Higher body temperature resulting from advanced maturation of
thermoregulation
• Distal skin vasodilation promoting rapid sleep onset
• Cardiopulmonary:
• Adequate or improved oxygenation; reduction in oxygen require-
197
ment
; minimal decrease in cerebral oxygenation while gavage
263
feeding
• Fewer/no episodes of periodic breathing, apnea, and bradycardia
• Lower diaphragm electrical activity while being ventilated by NARS
• Lower heart rate/stable respiratory rate
• Higher vagal tone: indicative of quicker maturation of the autonomic
nervous system (even in infants with complex congenital heart dis-
173
ease)
; favorable impact on premature infant parasympathetic
nervous system as measured by heart rate variability
• Stable vital signs, oxygen saturation, and temperature before, during,
and after cardiac surgery
174
• Breastfeeding:
• Increased milk supply
• Increased incidence and length (even in very-low-birth-weight
138,381
preterms)
• Increased exclusive breastfeeding
51
• Positive effect on growth in VLBW infants
• Distinct oral microbiologic pattern and an accelerated pace of micro-
bial repertoire maturity
178
• Attainment of full breastfeeding in the NICU at a median age of 35
weeks’ PMA
313
• Behavioral:
• Increased alert activity
• The longer the period of KC the more the preterm neonate made
physical contact attempts with mother during breastfeeding
• Increased deep, quiet sleep
34
• Improved self-regulation: sleep-wake cycles, arousal, sustained
exploration
• Better emotional regulation and arousal modulation for interaction
and rest
• Decreased stress response: decrease in beta-endorphin and cortisol
432
levels
; less stress response to diaper change
• Decreased or no crying
125,126
28
390
83
64
381
308
253
• Increased en face positioning
• Better orientation and habituation
• Less pain response to painful procedure in both preterm and term infants (see Chapter 12)
• Accelerated brain maturation
• Earlier discharge/ lower cost:
• Increased weight gain
127,381
• No increased infection/fewer infections51; decreased severity of infection and mortality; decolonization from resistant bacteria on the infant’s skin
220
• Out of incubator earlier
• Decrease in mortality of infants with birth weight <2000 g
51
• Regulatory interaction:
• Behavioral
• Sucking
• Neurochemical (decline in plasma oxytocin levels)
209,442
• Metabolic
• Sleep-wake cycles/improved sleep organization
• Cardiovascular
• Endocrine
• Immune
• Circadian
• Long-term:
• Increased length and head circumference at 9 months and 1 year of age
• Less crying at 6 months of age
• Higher psychomotor scales at 6 months and higher mental scales at 6 months to 2 years
• Enhanced mental and psychomotor development at 1 year
• Better self-regulation, less frustration, and better able to calm them­selves at 1 year of age
• Improved cerebral motor pathways and synaptic efficacy at adolescence
• Enhanced cognitive development and executive functioning from 6 months to 10 years; by 10 years of age: attenuated stress response, improved autonomic functioning, organized sleep, and better cogni­tive and behavioral control
• 20-year follow-up of original cohort: fewer school absences, less hyperactivity, aggressiveness, externalization, and socio-deviant behavior in young adults. Larger volume of left caudate nucleus on
79
brain MRI
MRI, Magnetic resonance imaging; NARS, noninvasive neutrally adjusted respiratory system; NICU, neonatal intensive care unit; PMA, post menstrual age. Data compiled from references 51, 65, 89, 131, 141, 155, 242, 243, 245, 248, 250, 306, 309, 310, 362, 363, 376, 377.
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benefits in the form of early behavioral orga­nization to preterm infants.
303
All infants being
held either conventionally or by KC should be monitored continuously for vital signs and oxy­gen saturation.
248
Parental holding is often (17%–33%) limited
or not supported by nurses and physicians.
43,143
Parents identify both the hospital staff and the environment of the NICU as barriers and sup­portive of KC.
43,228
A recent phenomenologic study found that NICU nurses attempt to balance the developmental needs of infants with parental readiness to participate in skin-to-skin care.
215
A second phenomenologic study found that infor­mation, communication, consistency, and support from staff to parents along with knowledgeable staff assisted in parents performing and having positive experiences with KC.
228
Barriers to holding infants include (1) infant safety concerns (e.g., accidental extubation, loss of arterial/venous lines, vital sign or oxygenation instability) and (2) reluctance of professionals and families to initiate or participate in KC (e.g., adding to RN workload and belief of losing control because of limited access to the infant, difficulty providing care, lack of experience, used for babies who are not developmentally ready, belief that technology is better than KC, belief by professionals that mother would feel trapped and stressed).
120,143,296
From the caregiver’s perspective there are four themes in the process of facilitating skin-to-skin care: (1) varying thresholds of getting started, (2) defining adequate resources, (3) dealing with the demands and complexities of the neonate, and (4) balancing parental readiness for skin-to-skin care with the neonate’s needs.
431
More than 60% of NICUs responding to one survey stated that low birth weight and gestational age were not contrain­dications for KC; many NICUs did not permit KC for babies on high-frequency oscillator ventilation (HFOV) or vasopressors.
120
“Risky populations” for KC include infants
who are intubated (Fig. 13.2), have arterial/ venous lines and chest tubes, are on pressors to maintain blood pressure, and are on HFOV.
A prospective, nonrandomized study in a level III NICU found a low risk of mechanical compli-
cations and no increased risk of infectious com­plications with skin-to-skin contact in neonates with an indwelling umbilical venous catheter.75
One of the national surveys found that 64% of NICUs offered conventional holding to parents of
FIGURE 13.2 Kangaroo care of awake, alert, intubated, and ventilated
premature infant.
intubated infants and 45% offered KC of intubated infants. The second survey found that 60% of NICU nurse managers thought that intubated infants should not receive KC.
120,143
In one study, 43 intubated, hemodynamically stable preterms less than 1500 g were assessed for 90 minutes (15 minutes of transfer; 60 minutes of KC; 15 minutes of transfer) and found to have stable heart rates, oxygen saturations, axillary temperatures, and mean arterial blood pressures.23 The researchers concluded that KC was safe for these ventilated preterms under their study conditions. A more recent study of 40 preterm infants (27.6 to 28.9 weeks’ gestation) receiving invasive (endotracheal tube ventilation) and noninvasive (continuous positive airway pressure [CPAP] and high-flow nasal cannulae) respiratory support found no difference in physiologic parameters (i.e., regional cerebral oxygenation, heart rate, pulse oximetry values, temperature, or FiO2) while being held skin to skin for 90 minutes when compared to incubator care.
242
On the basis of a 3-year study in five NICUs
of mechanically ventilated infants receiving KC, selection criteria (Box 13.7) and a safe protocol (Box 13.8) for KC in this population have been developed.
250,251
During this study, no adverse physiologic or behavioral events or accidental extu­bations occurred. None of these babies was agitated, and all slept and tolerated KC well. Previously
CHAPTER 13 The Neonate and the Environment Impact on Development
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BOX
13.7
• Birth weight >600 g; ≥30 weeks’ GA
• Ventilator for at least 24 hr before first kangaroo care
• SIMV: <35 breaths/min; Fio2 <0.50 (50%)
• Stable vital signs (TPR, B/P) and oxygen saturation
• Stable blood gases, bilirubin level
• No signs/symptoms of sepsis
• Not receiving vasopressors; no chest tube
• Lines (Broviac, umbilical, arterial, IVs) well secured
B/P, Blood pressure; Fio2, fraction of inspired oxygen; GA, gestational age; IV, intrave- nous; SIMV, synchronous intermittent mandatory ventilation; TPR, temperature, pulse, respiration. Modified from Ludington-Hoe S, Morgan K, Abouelfrettoh A. A clinical guideline for imple­mentation of kangaroo care with premature infants of 30 or more weeks’ postmenstrual age. Adv Neonatal Care. 2008;8:S3.
BOX
13.8
SELECTION CRITERIA FOR KANGAROO CARE WITH VENTILATED INFANTS
PROTOCOL FOR KANGAROO CARE WITH VENTILATED INFANTS
In Preparation for Transfer
1. Record baseline vital signs, oxygen saturation, and ventilator settings. Secure and maintain continuous monitoring of these parameters during kangaroo care (KC) to determine infant’s tolerance of KC.
2. Place infant supine on a clean blanket (folded in fourths) with assistance of second person, and note changes in vital signs, saturations, or ventila­tor settings.
3. Auscultate chest and evaluate breath sounds, suction endotracheal tube, and change diaper.
4. Drain water from ventilator tubings to decrease resistance, maintain air­flow, and prevent retrograde water flow toward infant when moved or positioned lower than or at the level of the ventilator.
5. Assess infant’s responses: Wait 15 minutes to enable physiologic adap­tation (e.g., return of baseline vital signs/oxygenation for 3 minutes). If still unstable at 15 minutes, the infant is probably not stable enough for KC at this time.
6. Position the reclining chair near the ventilator, making sure there is ample tubing length.
7. Two or three staff members will assist the parent in transfer of the infant:
• One person gathers lines to one side of the infant.
• One person transfers and secures the ventilator tubing.
• One person assists the parent.
Transfer Procedure
1. After a staff member disconnects the endotracheal tube (ETT) from the ventilator, the parent slides his or her hands under the blanket and
reported parental perceptions of KC with ventilated babies include the following:
• Ambivalence toward KC: yearning to hold the infant yet being apprehensive about it
• The necessity of a supportive environment
• The special quality of parent-infant interaction: intense connectedness and active parenting
Perhaps these parental and staff concerns may be
overcome with careful selection of infants, educa­tion about KC, a consistent procedure for transfer, increase in confidence of the staff assisting parents in KC, and a clinical guideline for implementing
177,250,251,309,310
KC.
Parents and staff need education
about KC, and staff can offer KC to parents instead of waiting for parents to request this intervention.*
Recommendations about KC include the following:
* References 120,177,228,248
infant, lifts both, and places the infant prone against his or her chest in one movement. Reconnect the ventilator tubing and let the infant stabilize. (If the infant was not placed on a clean blanket or it was soiled before transfer, the parent can lift the baby and a clean blanket is placed over the infant when he or she is prone on the parent’s chest.)
2. Disconnect ventilator tubing from ETT and move parent backward toward recliner, having him or her sit down when he or she feels the edge of the chair against the calves of the legs. Reconnect the ETT to the ventilator tubing.
3. Assist the parent in being comfortable by raising the footrest, position the infant in a flexed position with head and neck in a neutral position to avoid ETT movement (e.g., downward into the bronchi with head flexion or possible extubation with head extension) and/or obstructive apnea with head flexion or extension if the infant is on nasal continuous positive airway pressure.
4. Secure the ventilator tubing by draping it over the parent’s shoulder. Do
not tape the tubing to the blanket, parent clothing, etc.
5. If using ISC temperature control (on the radiant warmer/incubator), turn to air control, set temperature at 33°C while the baby is receiving KC, and monitor the infant’s skin temperature from the temperature gauge on the radiant warmer/incubator. (There is then no need to uncover or cold stress the infant to take a temperature.)
6. Maintain continuous electronic monitoring throughout KC; check both the infant’s and/or parent’s condition every 10 minutes during KC.
7. If the infant’s condition remains stable, facilitate KC for a minimum of 1 hour.
BOX
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13.8
UNIT TWO Support of the Neonate366
PROTOCOL FOR KANGAROO CARE WITH VENTILATED INFANTS—CONT’D
Transfer after Kangaroo Care
1. Slowly place the recliner in an upright position and assist parent to move forward to the front edge of the chair.
2. One staff member handles the lines and another disconnects the ETT from the ventilator lines.
3. Assist the parent to stand, reconnect the ETT to the ventilator tubing, and let the infant stabilize.
ISC, Infant servocontrol. Modified from Ludington-Hoe S, Ferreira C, Swinth J. Safe criteria and procedure for kangaroo care with intubated preterm infants. J Obstet Gynecol Neonat Nurs. 2003;32:586; and Ludington­Hoe S, Morgan K, Abouelfrettoh A. A clinical guideline for implementation of kangaroo care with premature infants of 30 or more weeks’ postmenstrual age. Adv Neonatal Care. 2008;8:S3.
• It is an important therapeutic intervention for
healthy preterms (gestational age ≥34 weeks) and their mothers in a modern, well-equipped
248,447
NICU Health Organization.
as recommended by the World
457
• It is a simple, safe, cost-effective intervention that reduces severe infant morbidity without serious side effects, and more well-designed randomized controlled trials are needed.
89
• Parents need education, a trusting relationship, individualized support, and consistent informa­tion and communication from health care pro­viders to be comfortable with KC.
228
• Nursing staff members need education about the benefits of KC and confidence and competence in skills to transfer and evaluate families and infants during KC.
177
• Well-written NICU protocols for KC should contain criteria for initiation, positioning, trans­fer to/from KC, care practices while in KC (including use of continuous cardiorespiratory monitoring, proper positioning of head, endo­tracheal tube, stability of arterial and venous devices, and all life support equipment), provi­sion of privacy, parental role, and interventions for neonatal instability.
27,228,309,310
• Written information for parents about the bene­fits of KC, expectations of parents during KC, and preparing for KC (e.g., eat, go to the bathroom, bring a drink) assist parents and provide consis­tent, complete information to all families.
228
One should note that fathers can also partici-
pate in KC without endangering the infant. Aside from the positive effects on the baby, paternal
4. In one movement, disconnect the ventilator tubing and place the infant in the radiant warmer/incubator.
5. Reconnect the ventilator tubing to the ETT, stabilize, and secure all lines inside the radiant warmer/incubator.
6. Document KC, length of session, and how the infant and parent tolerated KC.
KC enhances the engagement and attachment of the father, helps fathers attain their paternal role, adapt to the crisis of preterm birth, includes the father in the infant’s care, and facilitates more equal parenthood.
43,228,312
A recent study of the
effects of the first skin-to-skin contact of fathers in the NICU with their preterm infants found a decrease in paternal physiologic stress responses
(i.e., lowered blood pressure and cortisol levels).
425
The HUG Your Baby program improves fathers’ under­standing of their preterm infant behaviors, lowers paternal stress, and improves paternal confidence.
Bathing. There is a lack of evidence of the safety and
efficacy of sponge bathing preterm babies in the NICU on a daily or every-other-day schedule.
198
144
Sponge bathing critically ill infants (28–34 weeks’ gestational age) results in significant increases in behavior state and activity levels (i.e., motor stress behavior, stability, reorganization), increase in stress cue frequency, increase or decrease in heart rate, decrease in oxygen saturation preterm, and need for enhanced temperature support.
234,332,401
These detrimental effects caused by handling were exhibited most frequently by neonates of younger gestational ages. Because sponge bathing of critically ill preterm infants clearly increases physiologic risk and provides no clear benefits, the procedure of routine bathing of these infants is unnecessary and not rec­ommended.
21,252,333
Frequency of sponge bathing
can be reduced to from every other day to 3 or 4 times weekly without increasing skin flora colony
counts or colonization with pathogens.
144,225,252,348
(See Chapter 19.)
CHAPTER 13 The Neonate and the Environment Impact on Development
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367
Waiting to bathe these infants until they are phys­iologically stable with introduction of the bath as a “recovery milestone” for parents to complete is a more developmentally and physiologically appropriate practice.
333
In one study, late preterm infants (LPI) who were tub bathed experienced less hypothermia and were significantly warmer at 10 minutes and 30 minutes after bathing compared with LPIs who were sponge bathed.
244
Parents may tub bathe the prema­ture grower, and this may provide a soothing, relaxing, tension-relieving experience of multiple textures (i.e., water, water temperature, soap, washcloth).
A study of the effects of tub bathing on preterm infants (done by nurses) found disruption of sleep and an increase in stress behaviors. The study recom­mended considering the effects of “routine” nursing procedures and modifying handling of the preterm to promote recovery, growth, and development and to decrease stress.
234
It is evident that more sup-
portive behaviors by the nurse (i.e., position support and containment) enhanced the preterm infant’s self-regulation during bathing.
235
Swaddled bathing (i.e., swaddled in a flexed, midline position in a blanket while bathing) pro­vides containment and helps the infant self-regu­late. Benefits of swaddled bathing are listed in Box
13.9. A protocol for swaddled bathing is available with
best results occurring with an initial water temperature of 100° to 101° F and a bath length of 8 minutes.
Self-Consoling. Consoling hand-to-mouth behaviors
349
are observed more frequently during caregiving
(by nurses, rather than parents) and before and after feeding (especially in gavage-fed infants).
Hand-to-midline behaviors are encouraged by cradling the infant for feedings (for both bottle and gavage feedings if the infant tolerates it) with both arms in the midline. If a premature
infant needs an oxygen hood, using one large enough so that the infant’s whole upper body will fit inside encourages hand-to-mouth quieting (Fig.
13.3). VLBW preterm infants whose whole body
was not inside the oxygen hood have been vid­eotaped expending energy in persistent attempts (30–40 minutes) to self-console and reduce stress by trying to get their hands to their mouths. In a recent study, preterm infants who displayed
more stress behaviors also displayed more self-consoling behaviors.
146
Use arm restraints only when necessary, and immobilize the extremity in a physiologic position. Release and exercise the restrained
BOX
13.9
• Decrease in physiologic and motor stress
• Better energy conservation
• Improvement in state control
• Less crying and agitation
• Fewer stress cues
• Less temperature instability
BENEFITS OF SWADDLED BATHING
76,116,132,349
FIGURE 13.3 Preterm infant in oxygen hood that is large enough to accommodate upper body to facilitate hand-to-mouth behavior. Note
sling that helps maintain flexion without frog-leg position.
UNIT TWO Support of the Neonate368
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extremity with each caregiving encounter. Avoid
restraining both arms so that one is free for hand­to-mouth behaviors. If both must be restrained (e.g., the infant pulls out the orogastric tube), give the infant a pacifier.
Positioning. Preterm infants display motor devel-
opment that is different from that of term infants.
288,370
A continuous assessment of mus­cle tone, response to positioning and handling, oral-motor function, and response to sensory stim­uli provide data for individualizing intervention. The goal of intervention is to provide opportu­nities for normal development and organization of the sensory systems, detect early developmental problems, and educate parents about stimulation, handling, and positioning. Although some studies have shown that specific positioning for premature infants does not significantly affect development, others have shown that a developmental approach to care of VLBW infants greatly reduces the long­term negative effects of prematurity.
297
Preterm infants usually have less developed
physiologic flexion in the limbs, trunk, and pel­vis compared with term newborns (Table 13.8).
Even at 40 weeks’ postconceptual age, preterm infants have less flexion than their full-term coun­terparts have. For preterm infants, long periods of immobilization without a positioning device on a firm mattress with the influences of gravity result in a number of abnormal characteristics: (1) increased neck extension with a right-sided head preference, (2) shoulder retraction and abduction (reduces
forward rotation and ability to reach midline), (3) increased trunk extension with “arching” of the neck and back, (4) frog-leg position: hips abducted and externally rotated, and (5) ankle and feet ever­sion (Fig. 13.4).
288,413
These characteristics interfere with development of eye-hand coordination, head control in prone/sitting, crawling/walking, cogni­tive development, and equilibrium.
370
Box 13.10
lists the reasons for proper positioning in the NICU.
The infant should be provided with a vari­ety of positions to avoid overstretching of the joints, facilitate development of flexor tone, and prevent deformities. Goals of proper positioning
include (1) optimizing alignment (e.g., neutral neck/trunk and foot positions), semiflexed, midline extremity posture; (2) supporting posture and move­ment within containment boundaries (avoiding producing a barrier of immobilization), (3) modify­ing positioning and handling to support behavioral state regulation of sleep-wake states; and (4) provid­ing positions that encourage controlled, individual exposure to stimuli while monitoring for signs of behavioral stress from overstimulation and adjust stimuli accordingly. A physical therapist can be help­ful in facilitating these positions. Systematic, targeted education for nurses and residents as well as “posi­tion champions” significantly improved positioning of infants in the NICU after 18 months.
78,265
A change in body position influences venti­lation by alteration of lung function, but how often should repositioning occur? Sixty preterm
infants receiving respiratory support (mechanical
TABLE
13.8
GESTATIONAL AGE (WK) DEVELOPMENT
28 Completely hypotonic and lacks all physiologic flexion 32 Hips and knees begin to show some flexion while arms remain extended 34 Flexor tone apparent in legs 36 Loose flexion of arms and legs evident and grasp reflex present 40 Develops tone in utero and develops flexed position in intrauterine space; after birth, reflex activity and central nervous
*Muscle tone develops in caudocephalic and centripetal (distal to proximal) directions and interacts with simultaneous cephalocaudal development of movement to help affect posture. Although knowledge of normal development before term helps detect signs of abnormality, variability of ±2 weeks’ gestational age must be considered. From Anderson J, Auster-Liebhaber J. Phys Occup Ther Pediatr. 1984;4(1):89; Dubowitz LM, Dubowitz V, Goldberg C. Clinical assessment of gestational age in the newborn infant. J Pediatr. 1970;77:1; Palisano R, Short M. Phys Occup Ther Pediatr. 1984;4(4):43.
DEVELOPMENT OF TONE*
system maturity help term infant unfold and extend; term infant holds all four limbs in flexed position
112