Mechanics of Respiration in Apneic Anesthetized Infants

Reynolds, Robert N.; Etsten, Benjamin E.

doi:10.1097/00000542-196601000-00004

Cited by 36 publications

(14 citation statements)

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“…The total static compliance value is similar (1.8 ml/cm H20 ) and within the range of the values observed by Rey n o l d s et al [12] : 1.5-5 ml/cm H20 . Other values have been reported by Sm y t h e [16] (2.5 ml/cm H20 ), O k m ia n [10] (2.7 ml/cm H ,0) and R ic h a r d s et al [13] (4.9 ml/cm H20 ).…”

Section: Discussionsupporting

confidence: 89%

“…(2) The total dynamic compliance value (C1+w) (1.8 ml/cm H20 ) is within the limits of the previously published values (1.5 to 4.9 ml/cm H20 ) [12],…”

Section: Discussionsupporting

confidence: 80%

“…Prolonged inflation increases the compliance, probably by increasing the number of the expanded alveoli [17] or by the phenomenon of stress relaxation as demonstrated in animals [9]. In our study as well as in the observations published by R e y n o l d s et al [12] the static compliance was determined after 1 s of inflation.…”

Section: Discussionsupporting

confidence: 72%

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Methods of Investigation of the Mechanics of Breathing in the Artificially Ventilated Newborn

Geubelle¹,

Senterre²

1970

Neonatology

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Section: Discussionsupporting

confidence: 89%

“…(2) The total dynamic compliance value (C1+w) (1.8 ml/cm H20 ) is within the limits of the previously published values (1.5 to 4.9 ml/cm H20 ) [12],…”

Section: Discussionsupporting

confidence: 80%

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Methods of Investigation of the Mechanics of Breathing in the Artificially Ventilated Newborn

Geubelle¹,

Senterre²

1970

Neonatology

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“…The compliance of the lung or respirato ry system has been intensively investigated in newborn infants [Clm et al, 1964;Cook et al, 1957;Karlberg et al, 1962;Nelson, 1966;Reynolds and Epsten, 1966;Geubelle and Senterre, 1970;Ahlstrom, 1975;Lacourt and Polgar, 1972], However, compli ance was not systematically determined shortly after birth in a large group of new borns and related to their course and final outcome. Compliance indicates the pressure necessary for a certain tidal volume to be ventilated.…”

Section: Introductionmentioning

confidence: 99%

Respiratory Compliance of Newborns after Birth and Its Prognostic Value for the Course and Outcome of Respiratory Disease

Simbruner¹,

Coradello

Lubec

et al. 1982

Respiration

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The compliance of the respiratory system was determined at an average of 2.89 h (range 45 min – 8 h) after birth in 82 newborns who were retrospectively divided into group 1: healthy newborns (mean gestational age 37.1 weeks, range 30–41 weeks); group 2: newborns with respiratory distress (RD) needing no ventilatory support (mean gestational age 37.3 weeks, range 35–40 weeks); group 3: newborns with RD needing ventilatory support and surviving (mean gestational age 34.3 weeks, range 30 – 39 weeks), and group 4: newborns with RD who needed ventilatory support and died (mean gestational age 30’.8 weeks, range 28 – 37 weeks). Respiratory compliance was measured by the airway occlusion technique in spontaneously breathing babies and by injecting a known volume of gas into the closed airway system and measuring airway pressure in intubated babies. The difference in postnatal compliance was statistically significant (p < 0.01) in those four groups and was correlated with the severity of the disease in groups 2 and 3. In infants with RD, compliance was highly predictive for the need for ventilatory support (93% correct and 7% erroneous) and in infants with ventilatory support, for the mortality (83% correct and 17% erroneous). We conclude that postnatal compliance measurements are very useful to predict the course and outcome as well as to classify the severity of RD.

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“…Respiratory system compliance (Crs) can be assessed by weighted spirometry [16], where, because of the very compliant chest wall during infancy [17], the measured compliance practically reflects that of the lungs. This can be combined with the measurement of the functional residual capacity by closed circuit helium dilution (FRCHe).…”

mentioning

confidence: 99%

Pulmonary function during the first year of life in healthy infants born prematurely

Merth¹,

Winter²,

Borsboom³

et al. 1995

Eur Respir J

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P Pu ul lm mo on na ar ry y f fu un nc ct ti io on n d du ur ri in ng g t th he e f fi ir rs st t y ye ea ar r o of f l li if fe e i in n h he ea al lt th hy y i in nf fa an nt ts s b bo or rn n p pr re em ma at tu ur re el ly y ABSTRACT: Premature birth is associated with increased respiratory morbidity. We investigated cross-sectionally, in 69 healthy infants who had never had cardiorespiratory problems, whether premature birth is associated with diminished pulmonary function. The study comprised 26 healthy infants born prematurely (PT), median gestational age 32 (26-36) weeks, and 43 healthy controls born full-term (FT), median gestational age 40 (37-42) weeks. Static respiratory system compliance (Crs) was assessed by weighted spirometry, combined with the measurement of the functional residual capacity by closed circuit helium dilution (FRCHe) and with assessment of ventilation distribution from the mixing index (MI). Repeatability of these indices was also assessed.Premature and full-term infants had the same length-corrected FRCHe; their Crs was different, but the difference disappeared when gestational age was taken into account. Mixing index was unrelated to body size and was not different between full-term and premature infants. Crown-heel length and lung volume were not different for any postconceptional age. However, infants born prematurely were smaller and had smaller lung volume at any postnatal age compared to those born at term. Repeatability of the indices was fair.These findings suggest that gestational age <37 weeks is associated with normal respiratory system mechanics for body size, and normal distribution of ventilation in healthy infants who never had cardiorespiratory problems.

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Mechanics of Respiration in Apneic Anesthetized Infants

Cited by 36 publications

References 0 publications

Methods of Investigation of the Mechanics of Breathing in the Artificially Ventilated Newborn

Methods of Investigation of the Mechanics of Breathing in the Artificially Ventilated Newborn

Respiratory Compliance of Newborns after Birth and Its Prognostic Value for the Course and Outcome of Respiratory Disease

Pulmonary function during the first year of life in healthy infants born prematurely

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