Comparison of supine and prone noninvasive measurements of breathing patterns in fullterm newborns

Adams, José A.; Zabaleta, Ignacio; Sackner, Marvin A.

doi:10.1002/ppul.1950180105

Cited by 52 publications

(44 citation statements)

References 17 publications

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“…Esse traçado escalar é convertido por meio de um software em um traçado de Lissajous, no caso da pletismografia em uma curva de Konno-Mead (eixo x-y), para a análise dos componentes de volume e tempo do padrão respiratório e do movimento toracoabdominal 25 . A calibração do aparelho foi feita de forma automática por meio do Qualitative Diagnostic Calibration (QDC) 13,26 utilizandose um Vc estimado de 6 a 8 mL/kg, conforme previamente descrito por Wilkes et al 26 .…”

Section: Instrumentos De Medidasunclassified

“…A literatura aponta para alguns benefícios da posição prona em relação à posição supina: aumento da saturação periférica da hemoglobina em oxigênio (SpO 2 ) 7,8 , aumento do volume corrente (Vc) 9,10 , redução do número de apneias centrais 11 , menor gasto energético 4 , melhora da sincronia toracoabdominal [12][13][14] , menor necessidade de reintubação de recém-nascidos pré-termo em desmame de ventilação mecânica 15 e redução dos episódios de refluxo gastroesofágico 16 . Porém, a posição prona encontra-se fortemente associada à síndrome de morte súbita infantil, não sendo recomendada para recém-nascidos a termo sadios 17 .…”

Section: Introductionunclassified

“…Nos estudos em que foram avaliados parâmetros respiratórios, analisou-se um número exíguo de ciclos respiratórios 20 , ou um tempo reduzido de registro foi relatado [12][13][14] , ou ainda há estudos que não apresentaram desenhos metodológicos detalhados 21,22 . Assim, questiona-se ainda os reais benefícios das posições prona e supina em recém-nascidos a termo e pré-termo 8,15,23 .…”

Section: Introductionunclassified

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Prone position and reduced thoracoabdominal asynchrony in preterm newborns

Oliveira

Rego²,

Pereira³

et al. 2009

J Pediatr (Rio J)

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Objective: To assess the effect of prone and supine positions on breathing pattern variables, thoracoabdominal motion and peripheral oxygen saturation of hemoglobin of premature newborn infants recovering from respiratory distress syndrome, while breathing spontaneously and in rapid eye movement sleep. Methods:This was a quasi-experimental study. Twelve preterms weighing > 1,000 g at enrollment were studied in both positions, in random order. Respiratory inductive plethysmography was used to analyze breathing pattern (tidal volume, respiratory rate, minute ventilation, mean inspiratory flow) and thoracoabdominal motion (labored breathing index, phase relation in inspiration, phase relation in expiration, phase relation in total breath and phase angle). Pulse oximetry was used to evaluate peripheral oxygen saturation. Student's t test for paired samples or the Wilcoxon test were used for statistical analysis. Significance was set at p < 0.05. Results:A total of 9,167 respiratory cycles were analyzed. The prone position was associated with significant reductions in labored breathing index (-0.84±0.69; p = 0.001; 95%CI -1.29 to -0.40), phase relation in inspiration p = 0.000;, phase relation in expiration p = 0.000;) and phase relation in total breath (-30.20±14.76; p = 0.000; 95%CI -39.59 to -20.82). There were no significant differences between the two positions in any of the other variables analyzed. Conclusion:The prone position resulted in a significant reduction in thoracoabdominal asynchrony, without affecting breathing pattern or peripheral oxygen saturation. J Pediatr (Rio J). 2009;85(5):443-448:Prone position, supine position, premature newborn infants, respiratory distress syndrome. ResumoObjetivo: Avaliar a influência das posições prona e supina em recém-nascidos prematuros pós-síndrome do desconforto respiratório, respirando espontaneamente e em estado de sono ativo, sobre variáveis de padrão respiratório, movimento toracoabdominal e saturação periférica da hemoglobina pelo oxigênio.Métodos: Estudo quase experimental. Doze prematuros com peso > 1.000 g no momento do estudo foram estudados nas duas posições, em ordem randomizada. A pletismografia respiratória por indutância foi utilizada para avaliação do padrão respiratório (volume corrente, frequência respiratória, ventilação minuto, fluxo inspiratório médio) e do movimento toracoabdominal (índice de trabalho respiratório, relação de fase inspiratória, relação de fase expiratória, relação de fase respiratória total e ângulo de fase). A oximetria de pulso registrou a saturação periférica de oxigênio. Para a análise estatística foram realizados os testes t de Student para amostras pareadas ou Wilcoxon. Foi considerado significativo p < 0,05.Resultados: Foram analisados 9.167 ciclos respiratórios. Na posição prona, houve redução significativa do índice de trabalho respiratório (-0,84±0,69; p = 0,001; IC95% -1,29 a -0,40), das relações de fase inspiratória (-27,36±17,55; p = 0,000; IC95% -38,51 a -16,20), expiratória (-32,36±16,20; p = 0,000; IC...

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Section: Instrumentos De Medidasunclassified

Section: Introductionunclassified

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Prone position and reduced thoracoabdominal asynchrony in preterm newborns

Oliveira

Rego²,

Pereira³

et al. 2009

J Pediatr (Rio J)

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“…and support of the rib cage with the elastic band. Previous studies only investigated the correlation between postural positioning and thoracoabdominal synchrony, describing enhancements in diaphragm function, oxygen saturation, and oxygen partial pressure, as well as reductions in heart rate and gastroesophageal reflux episodes 3,5,[12][13][14] .…”

Section: Discussionmentioning

confidence: 99%

“…Thus, it has been associated with greater advantages, such as increase in tidal volume, improvement in diaphragm function, reduction in thoracoabdominal asynchrony, increase in oxygenation, and also decrease in carbon dioxide [4][5][6] .…”

Section: Introductionmentioning

confidence: 99%

Response of oxygen saturation in preterm infants receiving rib cage stabilization with an elastic band in two body positions: a randomized clinical trial

Brunherotti¹,

Martinez²

2013

Braz. J. Phys. Ther.

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| Background: Preterm newborns have higher thoracic compliance, providing less stability to the different forces of distortion imposed on the rib cage, leading to instability of the chest. Adequate body position may reduce this instability and facilitate respiratory work. Objective: To assess the oxygen saturation response of preterm newborns receiving rib cage stabilization with an elastic band in two body positions. Method: A clinical, prospective, randomized crossover study was conducted, including sixteen newborns with a gestational age of 31 to 35 weeks (mean 32.8 weeks) at a tertiary care facility, who did not receive supplemental oxygen. The infants were placed in a sequence of prone and supine positions with and without chest stabilization with an elastic band. Respiratory rate, heart rate, and oxygen saturation were measured at 10-minute intervals, corresponding to 7 samplings of 60 minutes. Data collection was interrupted when oxygen saturation was less than 90%. Results: The mean gestational age of the infants was 32.8±1.5 weeks and the mean birth weight was 1,789±255g. Better values for the variables studied were observed in the supine position with an elastic chest band compared to the supine position without the band. The positions using an elastic band resulted in lower mean respiratory rate and heart rate and higher oxygen saturation. Conclusion: The use of an elastic chest band improves respiratory indicators such as oxygen saturation.Keywords: respiratory mechanics; preterm newborn; supine position; prone position; movement. Article registered in Registro Brasileiro de Ensaios Clinicos (ReBEC) under number RBR-7wm8mz. HOW TO CITE THIS ARTICLEBrunherotti MAA, Martinez FE. Response of oxygen saturation in preterm infants receiving rib cage stabilization with an elastic band in two body positions: a randomized clinical trial. Braz J Phys Ther.

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Effect of positioning on pulmonary function of newborns: Comparison of supine and prone position

et al. 1996

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The effect of positioning on pulmonary function has been previously evaluated, and the prone position has been reported to be preferable for neonates with various respiratory diseases. Studies in healthy neonates have yielded conflicting results. Using a crying pulmonary function test, we examined the effect of positioning on pulmonary function in healthy full‐term neonates. Thirty‐nine infants with a mean birthweight (± SD) of 3,140 ± 379 g and a mean gestational age (± SD) of 39.8 ± 1.6 weeks were investigated during the first 6 hours of life. Measurements were obtained in both supine and prone positions using a computerized volume‐flow system. There were statistically significant decreases in crying vital capacity (CVC) and peak expiratory flow rate (PEF) in the prone compared with the supine position. However, there were no significant differences in forced expiratory flow rate at 75% (V75), 50% (V50), and 25% (V25) of vital capacity between the two positions. These results suggest that prone positioning decreases lung volume and increases resistance of upper airways. We conclude that healthy neonates should be in the supine posture for optimal ventilation. Pediatr Pulmonol. 1996; 21:167–170. © 1996 Wiley‐Liss, Inc.

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Comparison of supine and prone noninvasive measurements of breathing patterns in fullterm newborns

Cited by 52 publications

References 17 publications

Prone position and reduced thoracoabdominal asynchrony in preterm newborns

Prone position and reduced thoracoabdominal asynchrony in preterm newborns

Response of oxygen saturation in preterm infants receiving rib cage stabilization with an elastic band in two body positions: a randomized clinical trial

Effect of positioning on pulmonary function of newborns: Comparison of supine and prone position

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