in a level iii nicu…. - cleveland clinic · nursery acquired deformities ... advantages of prone...
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In a Level III NICU….
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Whey are we here? We work with the ultimate micro-environments
Isolette
Open Crib
Environment can influence the baby and we can influence the environment
Autonomic Stability
Posture and movement
State regulation
Active engagement
For Better or for Worse
Nursery acquired deformities
Tools to influence the environment
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The Intrauterine environment….
The Extra-uterine Environment…
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Positioning is one way to influence the environment
Autonomic Stability
State Regulation
Posture and Movement
Engagement and Interaction
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Medical instability and support may:
limit positioning options
limit positional opportunities (frequency)
limit active movement
Limit joint mechanoreceptor stimulation
May feed into the recruitment of specific motor patterns
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Autonomic Stability Respiration
Rate Saturation Work of breathing
Cardiac Heart Rate Circulation
Digestion and Elimination
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State Regulation
Encourage self-calming and behavioral organization
External support to facilitate infant strategies
Provision of boundaries that facilitate movement of extremities toward MIDLINE IN FLEXION
Management of sleep-wake cycles
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Active Engagement Increased periods of quiet, alert state
Facilitate visual and auditory skill development
Support for a variety of controlled movement
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Posture and Movement Nervous system
Musculoskeletal system
Sensory System
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Neurodevelopment Tone develops
caudal-cephalo direction
Amiel-Tison : 30-32 weeks PCA LEs and 36 weeks Ues
Allen and Capute: 33-35 weeks LE, 35-37 weeks UEs
Distally to proximally
Influenced by cramped environment
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Musculoskeletal Development Muscle fiber differentiation by 20 weeks
Higher ratio of fast twitch fibers
Bone ossification begins at 8 weeks gestation
Mechanoreceptors in joint capsules are formed in the 5th-8th week of gestation but require stimulation for refinement
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Musculoskeletal development Form follows Function (and gravity)
Head shape
Spinal curves
Development of
Shoulders
Hips
Knee
Feet
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Postural Control
Variety (the quantity of movement repertoire)
Variability of movements (the ability to make an adaptive selection)
Pre-term infants movement patterns are often with larger excursions, repetitive and less complex than term infants
Variability and variety is more consistent with development of postural control strategies
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Effect of positioning on the incidence of abnormalities of muscle tone in low risk, preterm infants L. Vaivre-Douret et al European Journal of Paediatric Neurology 2004
60 infants: 31-36 weeks gestation with no neurological abnormalities with similar presentation on neuromaturational assessment
Divided into 2 groups
Prone positioning with horizontal roll under hips
Typical posture of NICU at that time
Treatment group- position change with each feed into prone, sidelying and supine
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Control Group
Alignment assessment
Forced caudocephal weightshift- cervical hyperextension
Froglegged position
Shoulders in external rotation, abduction and retraction
Motor
Imbalance of tone (control group)
Increased in extensor muscles of the neck and trunk
Decreased traction response
Higher incidence of induced opisthotonos
Decreased flexor/extensor balance
Head preference in 30% of control vs. 10% of treated group
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Experimental Group What was different?
Frequent position changes
Freedom of supported movement
Opportunities to achieve postural balance
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Additional Nursery Acquired Deformities Retracted shoulders->shortened scapular adductor muscles
which interferes with bringing hands to midline, reaching and poor shoulder stability in prone
Hyperextended neck- shortened extensors, interferes with midline and graded head control, downward gaze and midline awareness
Frogged legs- shortened hip abductors and IT band, external tibial torsion- out-toeing in gait, transitions, wide base of support
Everted Feet- pronation in standing and gait
Plagiocephaly and head preference
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Sensory Afferent input
Babies perception of touch, pain, movement
Behavior (Vaivre study 2004)
Control group more difficult to calm
Increased Moro reflex
More difficult to hold from increased extension
Effects on bonding
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Good support is good…
Better support is
Better!
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Individualized Bedside Positioning Programs Minimize standard protocols Team approach- observation of infant’s movement and
postures over time 1st target areas of concern- support to minimize
medical instability is primary Fluidity
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Positioning is one way to influence the environment
Autonomic Stability
State Regulation
Posture and Movement
Engagement and Interaction
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What’s in your toolbox?
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Positioning Aides Z-flo Mattress Support, snakes, pads
Snuggle-Ups
DandleRoo
Bendy Bumpers
Prone supports
Wedges
Zacky Hands
Fredrick T. Frogs
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The most important tools
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Guiding Principles Individualized support
Variety of positions
Observation of infant response
Fluidity- modify as needed
Support midline for motor development and self regulation
Support active movement with return to a flexed posture
Accept the challenge!
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Supine Promotes development of head control in midline
with proper supports
Promotes development of visual skills
Supports should allow for symmetry of arms and legs, hands to mouth, physiological flexion
AVOID the supine, “W” configuration if at all possible
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Supine: Supports flexion, hands to face, controlled movement, symmetry
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Sidelying May be used to facilitate flexion Encourage hand to face/mouth activity May benefit infants that demonstrate arching by
providing them with boundaries to support flexion Encourage neutral head position or chin tuck if gravity
used as an assist Place toys in visual field to promote the desired head
position ( once visual fixation present) Give infant rattle or toy that they can hold or grasp
(>full term)
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Sidelying: Hand to mouth, proper alignment of hips, opportunity for controlled movement
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Prone Facilitates flexion
Facilitates the development of early head control
May improve oxygenation due to the mechanical advantages of prone positioning on chest wall expansion
Facilitates development of balance between flexion and extension as infant begins to push into weight bearing surface
Promotes downward gaze, awareness of hands as infant becomes closer to 40 wks PMA
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The Open Crib Challenge New Environment
Open Isolette- begins modeling for discharge
Infants may be as young as 32-33 weeks
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"How wonderful it is that nobody need wait a single moment before starting to
improve the world." — Anne Frank
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References Peters et al Association between autonomic and
motoric systems in the preterm infant. Clinical Nursing Research. 2001. Vol:10(1): 82-90.
Dusing S. Variability in Postural Control during Infancy: Implications for development, assessment, and intervention. Physical Therapy. 2010. Vol 90(12): 1838- 1849.
Mijna Hadders-Algra. Variation and Variability: Key Words in Human Motor Development. Physical Therapy. 2010. Vol 90(12): 1823- 1837.
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.
Grenier IR et al. Comparison of motor self-regulatory and stress behaviors of preterm infants across body positions. American Journal of Occupational Therapy. 2003. May-June;57(3):289-97.
Dusing SC et al. Infants born preterm exhibit different patterns of center of pressure movement than infants born at full term. Physical Therapy. 2009. Dec;89(12):1354-62.
Vaivre-Douret, L. et al. Comparative Effects of 2 Positioning Supports on Neurobehavioral and Postural Development in Preterm Neonates. Journal of Perinatal Neonatal Nursing. 2007. 21 (4): 323-330.
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Sweeney, J et al. Musculoskeletal Implications of Preterm Infant Positioning in the NICU. Journal of Perinatal and Neonatal Nursing. 2002:16(1):59-70.
Harbourne, R. et al. A Comparison of Interventions for Children with Cerebral Palsy to Improve Sitting Postural Control: A Clinical Trial. Physical Therapy. 2010 Vol. 90(12): 1881-1898.