Matches in SemOpenAlex for { <https://semopenalex.org/work/W2100043056> ?p ?o ?g. }
Showing items 1 to 97 of
97
with 100 items per page.
- W2100043056 endingPage "95" @default.
- W2100043056 startingPage "89" @default.
- W2100043056 abstract "Pulmonary mechanics and energetics were determined in 33 healthy low birthweight infants (less than 1,500 g, 28-34 weeks gestation) who had never received ventilatory support. Tidal volume, dynamic pulmonary compliance, pulmonary resistance, pressure-volume relationships, and tidal flow-volume measurements were obtained by pneumotachography and the esophageal balloon technique. Standardized data collection and software data analysis by least mean squares technique yielded data at 0.5, 1, 2, and 4 weeks postnatally, as a function of gestational age (less than 30, 30-32, and greater than 32 weeks gestation). Relatively stable values were obtained for tidal volume and minute ventilation (normalized for body weight); these were associated with values of peak-to-peak esophageal pressure significantly (P less than 0.001) increasing from 4.4 +/- 0.3 SEM cmH2O at 0.5 weeks to 8.1 +/- 0.8 SEM cmH2O at 4 weeks of age. Dynamic pulmonary compliance ranged from 2.0 to 2.4 mL/cmH2O in the first 4 weeks of life. When normalized for weight, compliance decreased with age, which may suggest a slower pulmonary maturation as compared to increase of body weight. Mean pulmonary resistance decreased from 62.9 cmH2O/L/s at less than 30 weeks gestation to 32.5 cmH2O/L/s at greater than 32 weeks gestation, 0.5 weeks postnatally. Pulmonary resistance peaked at 2 weeks postnatally (P less than 0.05), at all gestational ages, then decreased. Changes in pulmonary mechanics resulted in increasing resistive work of breathing. Our findings suggest a postnatal retardation of pulmonary and airway growth, relative to gestation maturation. These data can provide an objective base of comparison for data in sick, low birthweight neonates." @default.
- W2100043056 created "2016-06-24" @default.
- W2100043056 creator A5045768242 @default.
- W2100043056 creator A5089343037 @default.
- W2100043056 date "1990-01-01" @default.
- W2100043056 modified "2023-09-27" @default.
- W2100043056 title "Pulmonary mechanics and energetics of normal, non-ventilated low birthweight infants" @default.
- W2100043056 cites W1892095814 @default.
- W2100043056 cites W1990847778 @default.
- W2100043056 cites W1993276581 @default.
- W2100043056 cites W2046384343 @default.
- W2100043056 cites W2061130339 @default.
- W2100043056 cites W2064556624 @default.
- W2100043056 cites W2065661605 @default.
- W2100043056 cites W2076362108 @default.
- W2100043056 cites W2087618949 @default.
- W2100043056 cites W2090946118 @default.
- W2100043056 cites W2152651047 @default.
- W2100043056 cites W2153444851 @default.
- W2100043056 cites W2156741761 @default.
- W2100043056 cites W2161423994 @default.
- W2100043056 cites W2225037137 @default.
- W2100043056 cites W2345544709 @default.
- W2100043056 doi "https://doi.org/10.1002/ppul.1950080206" @default.
- W2100043056 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/2352789" @default.
- W2100043056 hasPublicationYear "1990" @default.
- W2100043056 type Work @default.
- W2100043056 sameAs 2100043056 @default.
- W2100043056 citedByCount "38" @default.
- W2100043056 countsByYear W21000430562012 @default.
- W2100043056 countsByYear W21000430562015 @default.
- W2100043056 countsByYear W21000430562017 @default.
- W2100043056 countsByYear W21000430562018 @default.
- W2100043056 countsByYear W21000430562022 @default.
- W2100043056 crossrefType "journal-article" @default.
- W2100043056 hasAuthorship W2100043056A5045768242 @default.
- W2100043056 hasAuthorship W2100043056A5089343037 @default.
- W2100043056 hasConcept C126322002 @default.
- W2100043056 hasConcept C136936797 @default.
- W2100043056 hasConcept C163498912 @default.
- W2100043056 hasConcept C164705383 @default.
- W2100043056 hasConcept C27101514 @default.
- W2100043056 hasConcept C2776924770 @default.
- W2100043056 hasConcept C2777080012 @default.
- W2100043056 hasConcept C2777257755 @default.
- W2100043056 hasConcept C2777714996 @default.
- W2100043056 hasConcept C2778376644 @default.
- W2100043056 hasConcept C2778803570 @default.
- W2100043056 hasConcept C2779234561 @default.
- W2100043056 hasConcept C42219234 @default.
- W2100043056 hasConcept C46973012 @default.
- W2100043056 hasConcept C534529494 @default.
- W2100043056 hasConcept C54355233 @default.
- W2100043056 hasConcept C71924100 @default.
- W2100043056 hasConcept C75603125 @default.
- W2100043056 hasConcept C86803240 @default.
- W2100043056 hasConceptScore W2100043056C126322002 @default.
- W2100043056 hasConceptScore W2100043056C136936797 @default.
- W2100043056 hasConceptScore W2100043056C163498912 @default.
- W2100043056 hasConceptScore W2100043056C164705383 @default.
- W2100043056 hasConceptScore W2100043056C27101514 @default.
- W2100043056 hasConceptScore W2100043056C2776924770 @default.
- W2100043056 hasConceptScore W2100043056C2777080012 @default.
- W2100043056 hasConceptScore W2100043056C2777257755 @default.
- W2100043056 hasConceptScore W2100043056C2777714996 @default.
- W2100043056 hasConceptScore W2100043056C2778376644 @default.
- W2100043056 hasConceptScore W2100043056C2778803570 @default.
- W2100043056 hasConceptScore W2100043056C2779234561 @default.
- W2100043056 hasConceptScore W2100043056C42219234 @default.
- W2100043056 hasConceptScore W2100043056C46973012 @default.
- W2100043056 hasConceptScore W2100043056C534529494 @default.
- W2100043056 hasConceptScore W2100043056C54355233 @default.
- W2100043056 hasConceptScore W2100043056C71924100 @default.
- W2100043056 hasConceptScore W2100043056C75603125 @default.
- W2100043056 hasConceptScore W2100043056C86803240 @default.
- W2100043056 hasIssue "2" @default.
- W2100043056 hasLocation W21000430561 @default.
- W2100043056 hasLocation W21000430562 @default.
- W2100043056 hasOpenAccess W2100043056 @default.
- W2100043056 hasPrimaryLocation W21000430561 @default.
- W2100043056 hasRelatedWork W171825352 @default.
- W2100043056 hasRelatedWork W2038128007 @default.
- W2100043056 hasRelatedWork W2083328204 @default.
- W2100043056 hasRelatedWork W2090946118 @default.
- W2100043056 hasRelatedWork W2100043056 @default.
- W2100043056 hasRelatedWork W2103668181 @default.
- W2100043056 hasRelatedWork W2135716494 @default.
- W2100043056 hasRelatedWork W2300659815 @default.
- W2100043056 hasRelatedWork W2466628242 @default.
- W2100043056 hasRelatedWork W64014085 @default.
- W2100043056 hasVolume "8" @default.
- W2100043056 isParatext "false" @default.
- W2100043056 isRetracted "false" @default.
- W2100043056 magId "2100043056" @default.
- W2100043056 workType "article" @default.