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Thoracoabdominal motion in newborns during ventilation delivered by endotracheal tube or nasal prongs
Author(s) -
Kiciman Nafiz M.,
Andréasson Bengt,
Bernstein Graham,
Mannino Frank L.,
Rich Wade,
Henderson Chris,
Heldt Gregory P.
Publication year - 1998
Publication title -
pediatric pulmonology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.866
H-Index - 106
eISSN - 1099-0496
pISSN - 8755-6863
DOI - 10.1002/(sici)1099-0496(199803)25:3<175::aid-ppul7>3.0.co;2-l
Subject(s) - medicine , continuous positive airway pressure , anesthesia , ventilation (architecture) , respiratory system , endotracheal tube , nose , surgery , intubation , mechanical engineering , obstructive sleep apnea , engineering
Preterm infants have asynchronous thoracoabdominal motion (TAM) secondary to a highly compliant chest wall and different lung mechanics compared to term infants. We compared TAM during continuous positive airway pressure (CPAP) administered through an endotracheal tube (ETT‐CPAP) or nasal prongs (nasal‐CPAP), and during synchronized intermittent mandatory ventilation administered by nasal prongs (nasal‐SIMV) in 14 preterm newborn infants. Asynchrony of TAM was quantified by measuring relative motion of chest wall and abdomen with strain gauges and calculating phase angles (θ). Phase angles were lower during nasal‐SIMV compared to nasal‐CPAP or ETT‐CPAP ( P < 0.05), and lower during nasal‐CPAP compared to ETT‐CPAP ( P < 0.05). The reduced TAM asynchrony during nasal‐SIMV and nasal‐CPAP may be due to elimination of resistance of the ETT and/or effective stabilization of the chest wall. These data suggest that nasal‐SIMV may be an effective mode of respiratory support for preterm infants requiring minimal ventilatory support. Pediatr. Pulmonol. 1998; 25:175–181. © 1998 Wiley‐Liss, Inc.