1986
Left ventricular performance and contractility before and after volume infusion: a comparative study of preterm and full-term newborn lambs.
Baylen B, Ogata H, Ikegami M, Jacobs H, Jobe A, Emmanouilides G. Left ventricular performance and contractility before and after volume infusion: a comparative study of preterm and full-term newborn lambs. Circulation 1986, 73: 1042-1049. PMID: 3754496, DOI: 10.1161/01.cir.73.5.1042.Peer-Reviewed Original ResearchConceptsFull-term lambsLeft ventricular performanceVolume infusionPreterm lambsVentricular performanceStroke workLeft ventricular peak dP/dtLeft ventricleVentricular peak dP/dtLeft ventricular end-diastolic volumeFull-term newborn lambsVentricular end-diastolic volumeLeft ventricular stroke workPeak dP/dtGreater stroke workPostnatal circulatory adaptationSystemic vascular resistanceVentricular stroke workFull-term animalsDays gestational ageEnd-diastolic volumeLeft ventricular pressureDP/dtVascular resistancePulmonary functionHemodynamic Effects of High Frequency Ventilation in Surfactant-Treated Preterm Lambs
Oguchi K, Baylen B, Ikegami M, Jacobs H, Berry D, Jobe A, Emmanouilides G. Hemodynamic Effects of High Frequency Ventilation in Surfactant-Treated Preterm Lambs. Neonatology 1986, 49: 21-28. PMID: 3753885, DOI: 10.1159/000242505.Peer-Reviewed Original ResearchConceptsHigh-frequency ventilationConventional ventilationHemodynamic effectsDuctus arteriosusPreterm lambsFrequency ventilationSame mean airway pressureLV end-diastolic volumeRight ductal shuntSurfactant-treated lambsMean airway pressureDeleterious hemodynamic effectsOrgan blood flowMin of ageEnd-diastolic volumeBlood gas valuesDays gestational ageLV stroke volumeBlood flow measurementsComparable ventilationDuctal shuntAirway pressureDuctal occlusionHemodynamic statusArterial pressure
1985
Effects of high-frequency and conventional ventilation on the premature lamb lung
Solimano A, Bryan C, Jobe A, Ikegami M, Jacobs H. Effects of high-frequency and conventional ventilation on the premature lamb lung. Journal Of Applied Physiology 1985, 59: 1571-1577. PMID: 3840801, DOI: 10.1152/jappl.1985.59.5.1571.Peer-Reviewed Original ResearchConceptsMean airway pressureConventional mechanical ventilationProtein leakPremature lamb lungsFetal lung fluidRespiratory distress syndromeDays gestational ageDegree of leakHigh-frequency oscillationsGroups of lambsAirway pressureCesarean sectionDistress syndromeGestational ageConventional ventilationMechanical ventilationPathological findingsLung diseaseBlood gasesImmature lungVentilator settingsEpithelial necrosisBlood gasLung sectionsTracer doseLung protein leaks in ventilated lambs: effects of gestational age
Jobe A, Jacobs H, Ikegami M, Berry D. Lung protein leaks in ventilated lambs: effects of gestational age. Journal Of Applied Physiology 1985, 58: 1246-1251. PMID: 3988678, DOI: 10.1152/jappl.1985.58.4.1246.Peer-Reviewed Original ResearchConceptsDays gestational ageGestational ageFull-term lambsGroups of lambsVentilated lambsLung tissueAlveolar washBlood gas valuesNatural sheep surfactantPremature lambsPreterm lambsPremature lungIntravascular injectionSheep surfactantLung proteinGas valuesPCO2 valuesAgeAlveoliAirwayLambsBidirectional fluxesTissueGroupAlbumin
1984
Lack of correlation of severity of lung disease with the phosphatidylcholine concentration in fetal lung fluid from premature lambs at 133-136 days gestational age.
Jobe A, Jacobs H, Ikegami M. Lack of correlation of severity of lung disease with the phosphatidylcholine concentration in fetal lung fluid from premature lambs at 133-136 days gestational age. Journal Of Developmental Physiology 1984, 6: 417-21. PMID: 6568247.Peer-Reviewed Original ResearchConceptsFetal lung fluidPeak inspiratory pressureDays gestational ageLung diseaseLung fluidPremature lambsGestational ageInspiratory pressureConcentration of phosphatidylcholinePhosphatidylcholine concentrationNarrow gestational age rangePhosphatidylcholine pool sizesGestational age rangeTime of deliveryLung compliance valuesMechanical ventilationAlveolar washTotal phosphatidylcholineDiseaseAge rangeSeverityLack of correlationAgeLambsCompliance values
1983
Cardiovascular Effects of Surfactant Suspensions Given by Tracheal Instillation to Premature Lambs
Jobe A, Jacobs H, Ikegami M, Jones S. Cardiovascular Effects of Surfactant Suspensions Given by Tracheal Instillation to Premature Lambs. Pediatric Research 1983, 17: 444-448. PMID: 6553821, DOI: 10.1203/00006450-198306000-00002.Peer-Reviewed Original ResearchConceptsSurfactant instillationPremature lambsOnly ventilator settingPulmonary artery pressureDays gestational ageSurfactant treatmentArtery pressureCesarean sectionRespiratory supportCardiovascular effectsLung functionGestational ageCardiovascular statusInspiratory pressureRespiratory statusTransient deteriorationCardiac outputAortic pressureTracheal instillationVentilator settingsInfant ventilatorRegional bloodHeart rateInstillationBody weightSurfactant Pool Sizes and Severity of Respiratory Distress Syndrome in Prematurely Delivered Lambs1–3
Jobe A, Ikegami M, Jacobs H, Jones S. Surfactant Pool Sizes and Severity of Respiratory Distress Syndrome in Prematurely Delivered Lambs1–3. American Journal Of Respiratory And Critical Care Medicine 1983, 127: 751-5. PMID: 6552894, DOI: 10.1164/arrd.1983.127.6.751.Peer-Reviewed Original ResearchConceptsLung diseaseAlveolar washCompliant lungsMinimal surface tensionLow minimal surface tensionRespiratory distress syndromePeak inspiratory pressurePhosphatidylcholine pool sizesDays gestational ageSurfactant pool sizePremature lambsDistress syndromeGestational ageInspiratory pressureLung tissueRespiratory diseaseTidal volumeLung slicesSurfactant phosphatidylcholineTotal phosphatidylcholineDiseaseSeverityPool sizeRate of incorporationLung
1982
Premature Lambs Rescued from Respiratory Failure with Natural Surfactant: Clinical and Biophysical Correlates
Jacobs H, Jobe A, Ikegami M, Glatz T, Jones S, Barajas L. Premature Lambs Rescued from Respiratory Failure with Natural Surfactant: Clinical and Biophysical Correlates. Pediatric Research 1982, 16: 424-429. PMID: 6920645, DOI: 10.1203/00006450-198206000-00005.Peer-Reviewed Original ResearchConceptsRespiratory failureDistal airwaysRespiratory distress syndromeMin of ageDays gestational agePressure-volume curvesClinical deteriorationClinical responsePremature lambsDistress syndromePosttreatment groupGestational ageMechanical ventilationProgressive dilatationUntreated lungsPremature babiesTracheal instillationBlood gasAlveolar washSurfactant replacementBody weightLung structureAirwayMinimum surface tensionHistologic measurements