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ECMO-SchmidtEtAl_SweepGasFlow

SchmidtEtAl_SweepGasFlow

Description

Ten mechanically ventilated ARDS patients receiving femoro-jugular VV ECMO were studied by Schmidt et al [346]. In the experimental protocol, blood gases were measured after independently varying sweep gas flow, with all other settings held at their maximum. Simulated validation scenarios followed the same approach to evaluate model performance under comparable conditions. Expected results bounds are determined using the inner quartile from digitizing whisker plots of measured data.

Segment Validation

Segment 1

All patients in the study had severe ARDS. Their oxygenation was so impaired that they required venovenous ECMO for life-sustaining gas exchange. Increase pulmonary shunt to reflect severe oxygenation impairment observed in the cohort and to help reproduce the low P/F physiology at baseline. Reduce hemoglobin concentration to approximate the cohort's anemia (representative mean Hb near ~8 g/dL), which impacts oxygen content and saturation response. Patients were deeply sedated. Initiate ultraprotective volume-controlled ventilation using representative cohort settings (VT 110 mL, RR 30/min, PEEP 9 cmH2O, FiO2 0.4) while on VV-ECMO to minimize ventilator-induced lung injury. Attach a femoro-jugular VV-ECMO circuit and initialize device settings to baseline "maximum flow" conditions (pump flow 5.8 L/min, sweep gas 10 L/min, sweep FiO2 1.0) using representative oxygenator diffusing capacities. Subsequent segments vary sweep gas flow only.

Table 1. Data request validation results for Segment 1.
Property Name Validation Engine Value Percent Error Percent Change Notes
MechanicalVentilator-TidalVolume(mL) EqualTo 110 [346] 105 -4.91%   Median VT (measured)
Aorta-Oxygen-PartialPressure(mmHg) [68.0,118] [346] 157 32.65%   PaO2
Aorta-CarbonDioxide-PartialPressure(mmHg) [30.0,37.0] [346] 29.3 -2.21%   PaCO2
PulmonarySystolicArterialPressure(mmHg) [25.0,45.0] [346] 24.6 -1.62%   sPAP


Figure 1. Vitals monitor for Segment 1.



Figure 2. Ventilator monitor for Segment 1.



Figure 3. Landing monitor for Segment 1.


Table 2. Data requests for Segment 1.
Property Name Engine Value
Patient-IdealBodyWeight(kg) 75.3
ExtracorporealMembraneOxygenationDevice-BloodFlow(L/min) 5.80
ExtracorporealMembraneOxygenationDevice-InletOxygenSaturation 0.728
ExtracorporealMembraneOxygenationDevice-OutletOxygenSaturation 0.999
ExtracorporealMembraneOxygenationDevice-MembraneLungOxygenContribution(mL/min) 228
ExtracorporealMembraneOxygenationDevice-MembraneLungCarbonDioxideContribution(mL/min) 186
ExtracorporealMembraneOxygenationDevice-HemoglobinConcentration(g/dL) 8.19
ExtracorporealMembraneOxygenationDevice-SweepGasFlow(L/min) 10.0
ExtracorporealMembraneOxygenationDevice-HydraulicTransmembranePressureGradient(mmHg) 460
ExtracorporealMembraneOxygenationDevice-InletPressure(mmHg) 300
ExtracorporealMembraneOxygenationDevice-OutletPressure(mmHg) 203
ExtracorporealMembraneOxygenationDevice-DrainagePressure(mmHg) -93.4
ExtracorporealMembraneOxygenationDevice-TransmembranePressureGradient(mmHg) 96.7
ExtracorporealMembraneOxygenationDevice-BagVolume(mL) 500
MechanicalVentilator-AirwayPressure(cmH2O) 9.02
MechanicalVentilator-BreathState 6.00
MechanicalVentilator-DynamicRespiratoryCompliance(mL/cmH2O) 20.2
MechanicalVentilator-EndTidalCarbonDioxideFraction 0.00374
MechanicalVentilator-EndTidalCarbonDioxidePressure(mmHg) 2.86
MechanicalVentilator-EndTidalOxygenFraction 0.392
MechanicalVentilator-EndTidalOxygenPressure(mmHg) 301
MechanicalVentilator-ExpiratoryFlow(L/min) 10.4
MechanicalVentilator-ExpiratoryResistance(cmH2O_s/L) 13.1
MechanicalVentilator-ExpiratoryTidalVolume(mL) 105
MechanicalVentilator-ExtrinsicPositiveEndExpiratoryPressure(cmH2O) 9.00
MechanicalVentilator-InspiratoryExpiratoryRatio 1.00
MechanicalVentilator-InspiratoryFlow(L/min) -10.4
MechanicalVentilator-InspiratoryResistance(cmH2O_s/L) 13.1
MechanicalVentilator-InspiratoryTidalVolume(mL) 105
MechanicalVentilator-IntrinsicPositiveEndExpiratoryPressure(cmH2O) 0.281
MechanicalVentilator-LeakFraction 1.99e-13
MechanicalVentilator-MeanAirwayPressure(cmH2O) 10.7
MechanicalVentilator-PeakExpiratoryFlow(L/min) 13.7
MechanicalVentilator-PeakInspiratoryFlow(L/min) 6.60
MechanicalVentilator-PeakInspiratoryPressure(cmH2O) 14.2
MechanicalVentilator-PlateauPressure(cmH2O) 12.7
MechanicalVentilator-RespirationRate(1/min) 30.0
MechanicalVentilator-StaticRespiratoryCompliance(mL/cmH2O) 30.4
MechanicalVentilator-TidalVolume(mL) 105
MechanicalVentilator-TotalLungVolume(mL) 58.2
MechanicalVentilator-TotalPositiveEndExpiratoryPressure(cmH2O) 9.28
MechanicalVentilator-TotalPulmonaryVentilation(L/min) 3.14
HeartRate(1/min) 53.7
HeartStrokeVolume(mL) 130
HeartEjectionFraction 0.669
BloodVolume(L) 5.53
ExtravascularFluidVolume(L) 34.1
MeanArterialPressure(mmHg) 96.0
SystolicArterialPressure(mmHg) 125
DiastolicArterialPressure(mmHg) 63.3
CardiacOutput(L/min) 6.96
HemoglobinContent(g) 450
CentralVenousPressure(mmHg) 3.28
PulmonaryCapillariesWedgePressure(mmHg) 9.05
TidalVolume(mL) 105
RespirationRate(1/min) 30.0
OxygenSaturation 0.995
CarbonDioxideSaturation 0.0296
EndTidalCarbonDioxideFraction 0.00655
EndTidalCarbonDioxidePressure(mmHg) 5.03
TotalAlveolarVentilation(L/min) 0.00
TranspulmonaryPressure(cmH2O) 15.6
CoreTemperature(degC) 37.1
SkinTemperature(degC) 30.7
RespiratoryExchangeRatio 0.795
OxygenConsumptionRate(mL/min) 235
CarbonDioxideProductionRate(mL/min) 187
GlomerularFiltrationRate(mL/min) 44.4
RenalBloodFlow(L/min) 0.756
UrineProductionRate(mL/min) 0.902
LeftAfferentArterioleResistance(mmHg_min/mL) 0.0412
RightAfferentArterioleResistance(mmHg_min/mL) 0.0412
SystemicVascularResistance(mmHg_s/mL) 0.800
BloodPH 7.51
HorowitzIndex(mmHg) 398
Aorta-Oxygen-PartialPressure(mmHg) 157
Aorta-CarbonDioxide-PartialPressure(mmHg) 29.3
VenaCava-Oxygen-PartialPressure(mmHg) 34.9
VenaCava-CarbonDioxide-PartialPressure(mmHg) 41.7
RightTubules-Sodium-Concentration(g/L) 3.91
LeftTubules-Sodium-Concentration(g/L) 3.91
Oxygen-AlveolarTransfer(mL/min) 6.43
CarbonDioxide-AlveolarTransfer(mL/min) -19.8

Segment 2

Update the sweep gas flow to 8 L/min.

Table 3. Data request validation results for Segment 2.
Property Name Validation Engine Value Percent Error Percent Change Notes
Aorta-Oxygen-PartialPressure(mmHg) EqualTo Segment1 (157) [346] 152 -2.73%   PaO2
Aorta-Oxygen-PartialPressure(mmHg) [69.0,120] [346] 152 26.88%   PaO2
Aorta-CarbonDioxide-PartialPressure(mmHg) GreaterThan Segment1 (29.3) [346] 32.7   11.31% PaCO2
Aorta-CarbonDioxide-PartialPressure(mmHg) [33.0,37.0] [346] 32.7 -1.04%   PaCO2
PulmonarySystolicArterialPressure(mmHg) EqualTo Segment1 (24.6) [346] 24.5 -0.39%   sPAP
PulmonarySystolicArterialPressure(mmHg) [24.0,45.0] [346] 24.5 0.00%   sPAP


Figure 4. Vitals monitor for Segment 2.



Figure 5. Ventilator monitor for Segment 2.



Figure 6. Landing monitor for Segment 2.


Table 4. Data requests for Segment 2.
Property Name Engine Value
Patient-IdealBodyWeight(kg) 75.3
ExtracorporealMembraneOxygenationDevice-BloodFlow(L/min) 5.80
ExtracorporealMembraneOxygenationDevice-InletOxygenSaturation 0.726
ExtracorporealMembraneOxygenationDevice-OutletOxygenSaturation 0.999
ExtracorporealMembraneOxygenationDevice-MembraneLungOxygenContribution(mL/min) 228
ExtracorporealMembraneOxygenationDevice-MembraneLungCarbonDioxideContribution(mL/min) 184
ExtracorporealMembraneOxygenationDevice-HemoglobinConcentration(g/dL) 8.21
ExtracorporealMembraneOxygenationDevice-SweepGasFlow(L/min) 8.00
ExtracorporealMembraneOxygenationDevice-HydraulicTransmembranePressureGradient(mmHg) 465
ExtracorporealMembraneOxygenationDevice-InletPressure(mmHg) 295
ExtracorporealMembraneOxygenationDevice-OutletPressure(mmHg) 199
ExtracorporealMembraneOxygenationDevice-DrainagePressure(mmHg) -93.3
ExtracorporealMembraneOxygenationDevice-TransmembranePressureGradient(mmHg) 96.7
ExtracorporealMembraneOxygenationDevice-BagVolume(mL) 500
MechanicalVentilator-AirwayPressure(cmH2O) 9.02
MechanicalVentilator-BreathState 6.00
MechanicalVentilator-DynamicRespiratoryCompliance(mL/cmH2O) 20.2
MechanicalVentilator-EndTidalCarbonDioxideFraction 0.00432
MechanicalVentilator-EndTidalCarbonDioxidePressure(mmHg) 3.31
MechanicalVentilator-EndTidalOxygenFraction 0.392
MechanicalVentilator-EndTidalOxygenPressure(mmHg) 301
MechanicalVentilator-ExpiratoryFlow(L/min) 10.4
MechanicalVentilator-ExpiratoryResistance(cmH2O_s/L) 13.1
MechanicalVentilator-ExpiratoryTidalVolume(mL) 105
MechanicalVentilator-ExtrinsicPositiveEndExpiratoryPressure(cmH2O) 9.00
MechanicalVentilator-InspiratoryExpiratoryRatio 1.00
MechanicalVentilator-InspiratoryFlow(L/min) -10.4
MechanicalVentilator-InspiratoryResistance(cmH2O_s/L) 13.1
MechanicalVentilator-InspiratoryTidalVolume(mL) 105
MechanicalVentilator-IntrinsicPositiveEndExpiratoryPressure(cmH2O) 0.281
MechanicalVentilator-LeakFraction 1.99e-13
MechanicalVentilator-MeanAirwayPressure(cmH2O) 10.7
MechanicalVentilator-PeakExpiratoryFlow(L/min) 13.7
MechanicalVentilator-PeakInspiratoryFlow(L/min) 6.60
MechanicalVentilator-PeakInspiratoryPressure(cmH2O) 14.2
MechanicalVentilator-PlateauPressure(cmH2O) 12.7
MechanicalVentilator-RespirationRate(1/min) 30.0
MechanicalVentilator-StaticRespiratoryCompliance(mL/cmH2O) 30.4
MechanicalVentilator-TidalVolume(mL) 105
MechanicalVentilator-TotalLungVolume(mL) 58.2
MechanicalVentilator-TotalPositiveEndExpiratoryPressure(cmH2O) 9.28
MechanicalVentilator-TotalPulmonaryVentilation(L/min) 3.14
HeartRate(1/min) 54.9
HeartStrokeVolume(mL) 128
HeartEjectionFraction 0.666
BloodVolume(L) 5.52
ExtravascularFluidVolume(L) 34.1
MeanArterialPressure(mmHg) 96.0
SystolicArterialPressure(mmHg) 125
DiastolicArterialPressure(mmHg) 63.8
CardiacOutput(L/min) 7.00
HemoglobinContent(g) 450
CentralVenousPressure(mmHg) 3.33
PulmonaryCapillariesWedgePressure(mmHg) 8.95
TidalVolume(mL) 105
RespirationRate(1/min) 30.0
OxygenSaturation 0.995
CarbonDioxideSaturation 0.0282
EndTidalCarbonDioxideFraction 0.00761
EndTidalCarbonDioxidePressure(mmHg) 5.84
TotalAlveolarVentilation(L/min) 0.00
TranspulmonaryPressure(cmH2O) 15.6
CoreTemperature(degC) 37.0
SkinTemperature(degC) 30.4
RespiratoryExchangeRatio 0.800
OxygenConsumptionRate(mL/min) 241
CarbonDioxideProductionRate(mL/min) 193
GlomerularFiltrationRate(mL/min) 111
RenalBloodFlow(L/min) 1.23
UrineProductionRate(mL/min) 0.910
LeftAfferentArterioleResistance(mmHg_min/mL) 0.0406
RightAfferentArterioleResistance(mmHg_min/mL) 0.0406
SystemicVascularResistance(mmHg_s/mL) 0.794
BloodPH 7.47
HorowitzIndex(mmHg) 388
Aorta-Oxygen-PartialPressure(mmHg) 152
Aorta-CarbonDioxide-PartialPressure(mmHg) 32.7
VenaCava-Oxygen-PartialPressure(mmHg) 35.2
VenaCava-CarbonDioxide-PartialPressure(mmHg) 43.3
RightTubules-Sodium-Concentration(g/L) 3.92
LeftTubules-Sodium-Concentration(g/L) 3.92
Oxygen-AlveolarTransfer(mL/min) 13.2
CarbonDioxide-AlveolarTransfer(mL/min) 18.8

Segment 3

Update the sweep gas flow to 6 L/min.

Table 5. Data request validation results for Segment 3.
Property Name Validation Engine Value Percent Error Percent Change Notes
Aorta-Oxygen-PartialPressure(mmHg) EqualTo Segment2 (152) [346] 147 -3.14%   PaO2
Aorta-Oxygen-PartialPressure(mmHg) [67.0,115] [346] 147 28.23%   PaO2
Aorta-CarbonDioxide-PartialPressure(mmHg) GreaterThan Segment2 (32.7) [346] 38.4   17.73% PaCO2
Aorta-CarbonDioxide-PartialPressure(mmHg) [34.0,40.0] [346] 38.4 0.00%   PaCO2
PulmonarySystolicArterialPressure(mmHg) EqualTo Segment2 (24.5) [346] 24.4 -0.38%   sPAP
PulmonarySystolicArterialPressure(mmHg) [27.0,46.0] [346] 24.4 -9.60%   sPAP


Figure 7. Vitals monitor for Segment 3.



Figure 8. Ventilator monitor for Segment 3.



Figure 9. Landing monitor for Segment 3.


Table 6. Data requests for Segment 3.
Property Name Engine Value
Patient-IdealBodyWeight(kg) 75.3
ExtracorporealMembraneOxygenationDevice-BloodFlow(L/min) 5.80
ExtracorporealMembraneOxygenationDevice-InletOxygenSaturation 0.723
ExtracorporealMembraneOxygenationDevice-OutletOxygenSaturation 0.999
ExtracorporealMembraneOxygenationDevice-MembraneLungOxygenContribution(mL/min) 229
ExtracorporealMembraneOxygenationDevice-MembraneLungCarbonDioxideContribution(mL/min) 182
ExtracorporealMembraneOxygenationDevice-HemoglobinConcentration(g/dL) 8.22
ExtracorporealMembraneOxygenationDevice-SweepGasFlow(L/min) 6.00
ExtracorporealMembraneOxygenationDevice-HydraulicTransmembranePressureGradient(mmHg) 460
ExtracorporealMembraneOxygenationDevice-InletPressure(mmHg) 300
ExtracorporealMembraneOxygenationDevice-OutletPressure(mmHg) 204
ExtracorporealMembraneOxygenationDevice-DrainagePressure(mmHg) -93.4
ExtracorporealMembraneOxygenationDevice-TransmembranePressureGradient(mmHg) 96.7
ExtracorporealMembraneOxygenationDevice-BagVolume(mL) 500
MechanicalVentilator-AirwayPressure(cmH2O) 9.02
MechanicalVentilator-BreathState 6.00
MechanicalVentilator-DynamicRespiratoryCompliance(mL/cmH2O) 20.2
MechanicalVentilator-EndTidalCarbonDioxideFraction 0.00536
MechanicalVentilator-EndTidalCarbonDioxidePressure(mmHg) 4.11
MechanicalVentilator-EndTidalOxygenFraction 0.391
MechanicalVentilator-EndTidalOxygenPressure(mmHg) 300
MechanicalVentilator-ExpiratoryFlow(L/min) 10.4
MechanicalVentilator-ExpiratoryResistance(cmH2O_s/L) 13.1
MechanicalVentilator-ExpiratoryTidalVolume(mL) 105
MechanicalVentilator-ExtrinsicPositiveEndExpiratoryPressure(cmH2O) 9.00
MechanicalVentilator-InspiratoryExpiratoryRatio 1.00
MechanicalVentilator-InspiratoryFlow(L/min) -10.4
MechanicalVentilator-InspiratoryResistance(cmH2O_s/L) 13.1
MechanicalVentilator-InspiratoryTidalVolume(mL) 105
MechanicalVentilator-IntrinsicPositiveEndExpiratoryPressure(cmH2O) 0.281
MechanicalVentilator-LeakFraction 3.41e-13
MechanicalVentilator-MeanAirwayPressure(cmH2O) 10.7
MechanicalVentilator-PeakExpiratoryFlow(L/min) 13.7
MechanicalVentilator-PeakInspiratoryFlow(L/min) 6.60
MechanicalVentilator-PeakInspiratoryPressure(cmH2O) 14.2
MechanicalVentilator-PlateauPressure(cmH2O) 12.7
MechanicalVentilator-RespirationRate(1/min) 30.0
MechanicalVentilator-StaticRespiratoryCompliance(mL/cmH2O) 30.4
MechanicalVentilator-TidalVolume(mL) 105
MechanicalVentilator-TotalLungVolume(mL) 58.2
MechanicalVentilator-TotalPositiveEndExpiratoryPressure(cmH2O) 9.28
MechanicalVentilator-TotalPulmonaryVentilation(L/min) 3.14
HeartRate(1/min) 55.9
HeartStrokeVolume(mL) 126
HeartEjectionFraction 0.662
BloodVolume(L) 5.51
ExtravascularFluidVolume(L) 34.1
MeanArterialPressure(mmHg) 96.0
SystolicArterialPressure(mmHg) 125
DiastolicArterialPressure(mmHg) 64.2
CardiacOutput(L/min) 7.03
HemoglobinContent(g) 450
CentralVenousPressure(mmHg) 3.26
PulmonaryCapillariesWedgePressure(mmHg) 8.86
TidalVolume(mL) 105
RespirationRate(1/min) 30.0
OxygenSaturation 0.993
CarbonDioxideSaturation 0.0262
EndTidalCarbonDioxideFraction 0.00955
EndTidalCarbonDioxidePressure(mmHg) 7.33
TotalAlveolarVentilation(L/min) 0.00
TranspulmonaryPressure(cmH2O) 15.6
CoreTemperature(degC) 37.0
SkinTemperature(degC) 30.3
RespiratoryExchangeRatio 0.797
OxygenConsumptionRate(mL/min) 238
CarbonDioxideProductionRate(mL/min) 189
GlomerularFiltrationRate(mL/min) 46.6
RenalBloodFlow(L/min) 0.776
UrineProductionRate(mL/min) 0.915
LeftAfferentArterioleResistance(mmHg_min/mL) 0.0401
RightAfferentArterioleResistance(mmHg_min/mL) 0.0401
SystemicVascularResistance(mmHg_s/mL) 0.792
BloodPH 7.40
HorowitzIndex(mmHg) 376
Aorta-Oxygen-PartialPressure(mmHg) 147
Aorta-CarbonDioxide-PartialPressure(mmHg) 38.4
VenaCava-Oxygen-PartialPressure(mmHg) 35.5
VenaCava-CarbonDioxide-PartialPressure(mmHg) 44.8
RightTubules-Sodium-Concentration(g/L) 3.93
LeftTubules-Sodium-Concentration(g/L) 3.93
Oxygen-AlveolarTransfer(mL/min) 7.13
CarbonDioxide-AlveolarTransfer(mL/min) -27.7

Segment 4

Update the sweep gas flow to 4 L/min.

Table 7. Data request validation results for Segment 4.
Property Name Validation Engine Value Percent Error Percent Change Notes
Aorta-Oxygen-PartialPressure(mmHg) EqualTo Segment3 (147) [346] 141 -4.64%   PaO2
Aorta-Oxygen-PartialPressure(mmHg) [69.0,111] [346] 141 26.69%   PaO2
Aorta-CarbonDioxide-PartialPressure(mmHg) GreaterThan Segment3 (38.4) [346] 44.8   16.48% PaCO2
Aorta-CarbonDioxide-PartialPressure(mmHg) [38.0,47.0] [346] 44.8 0.00%   PaCO2
PulmonarySystolicArterialPressure(mmHg) GreaterThan Segment3 (24.4) [346] 24.3 -0.43%   sPAP
PulmonarySystolicArterialPressure(mmHg) [29.0,53.0] [346] 24.3 -16.20%   sPAP


Figure 10. Vitals monitor for Segment 4.



Figure 11. Ventilator monitor for Segment 4.



Figure 12. Landing monitor for Segment 4.


Table 8. Data requests for Segment 4.
Property Name Engine Value
Patient-IdealBodyWeight(kg) 75.3
ExtracorporealMembraneOxygenationDevice-BloodFlow(L/min) 5.80
ExtracorporealMembraneOxygenationDevice-InletOxygenSaturation 0.717
ExtracorporealMembraneOxygenationDevice-OutletOxygenSaturation 0.999
ExtracorporealMembraneOxygenationDevice-MembraneLungOxygenContribution(mL/min) 230
ExtracorporealMembraneOxygenationDevice-MembraneLungCarbonDioxideContribution(mL/min) 168
ExtracorporealMembraneOxygenationDevice-HemoglobinConcentration(g/dL) 8.23
ExtracorporealMembraneOxygenationDevice-SweepGasFlow(L/min) 4.00
ExtracorporealMembraneOxygenationDevice-HydraulicTransmembranePressureGradient(mmHg) 467
ExtracorporealMembraneOxygenationDevice-InletPressure(mmHg) 293
ExtracorporealMembraneOxygenationDevice-OutletPressure(mmHg) 196
ExtracorporealMembraneOxygenationDevice-DrainagePressure(mmHg) -93.4
ExtracorporealMembraneOxygenationDevice-TransmembranePressureGradient(mmHg) 96.7
ExtracorporealMembraneOxygenationDevice-BagVolume(mL) 500
MechanicalVentilator-AirwayPressure(cmH2O) 9.02
MechanicalVentilator-BreathState 6.00
MechanicalVentilator-DynamicRespiratoryCompliance(mL/cmH2O) 20.2
MechanicalVentilator-EndTidalCarbonDioxideFraction 0.00774
MechanicalVentilator-EndTidalCarbonDioxidePressure(mmHg) 5.93
MechanicalVentilator-EndTidalOxygenFraction 0.390
MechanicalVentilator-EndTidalOxygenPressure(mmHg) 299
MechanicalVentilator-ExpiratoryFlow(L/min) 10.4
MechanicalVentilator-ExpiratoryResistance(cmH2O_s/L) 13.1
MechanicalVentilator-ExpiratoryTidalVolume(mL) 105
MechanicalVentilator-ExtrinsicPositiveEndExpiratoryPressure(cmH2O) 9.00
MechanicalVentilator-InspiratoryExpiratoryRatio 1.00
MechanicalVentilator-InspiratoryFlow(L/min) -10.4
MechanicalVentilator-InspiratoryResistance(cmH2O_s/L) 13.1
MechanicalVentilator-InspiratoryTidalVolume(mL) 105
MechanicalVentilator-IntrinsicPositiveEndExpiratoryPressure(cmH2O) 0.281
MechanicalVentilator-LeakFraction 3.16e-13
MechanicalVentilator-MeanAirwayPressure(cmH2O) 10.7
MechanicalVentilator-PeakExpiratoryFlow(L/min) 13.7
MechanicalVentilator-PeakInspiratoryFlow(L/min) 6.60
MechanicalVentilator-PeakInspiratoryPressure(cmH2O) 14.2
MechanicalVentilator-PlateauPressure(cmH2O) 12.7
MechanicalVentilator-RespirationRate(1/min) 30.0
MechanicalVentilator-StaticRespiratoryCompliance(mL/cmH2O) 30.4
MechanicalVentilator-TidalVolume(mL) 105
MechanicalVentilator-TotalLungVolume(mL) 58.2
MechanicalVentilator-TotalPositiveEndExpiratoryPressure(cmH2O) 9.28
MechanicalVentilator-TotalPulmonaryVentilation(L/min) 3.14
HeartRate(1/min) 56.9
HeartStrokeVolume(mL) 124
HeartEjectionFraction 0.659
BloodVolume(L) 5.50
ExtravascularFluidVolume(L) 34.1
MeanArterialPressure(mmHg) 96.0
SystolicArterialPressure(mmHg) 124
DiastolicArterialPressure(mmHg) 64.7
CardiacOutput(L/min) 7.04
HemoglobinContent(g) 450
CentralVenousPressure(mmHg) 3.25
PulmonaryCapillariesWedgePressure(mmHg) 8.76
TidalVolume(mL) 105
RespirationRate(1/min) 30.0
OxygenSaturation 0.991
CarbonDioxideSaturation 0.139
EndTidalCarbonDioxideFraction 0.0139
EndTidalCarbonDioxidePressure(mmHg) 10.7
TotalAlveolarVentilation(L/min) 0.00
TranspulmonaryPressure(cmH2O) 15.6
CoreTemperature(degC) 37.0
SkinTemperature(degC) 30.2
RespiratoryExchangeRatio 0.801
OxygenConsumptionRate(mL/min) 242
CarbonDioxideProductionRate(mL/min) 194
GlomerularFiltrationRate(mL/min) 71.1
RenalBloodFlow(L/min) 0.945
UrineProductionRate(mL/min) 0.919
LeftAfferentArterioleResistance(mmHg_min/mL) 0.0397
RightAfferentArterioleResistance(mmHg_min/mL) 0.0397
SystemicVascularResistance(mmHg_s/mL) 0.791
BloodPH 7.34
HorowitzIndex(mmHg) 360
Aorta-Oxygen-PartialPressure(mmHg) 141
Aorta-CarbonDioxide-PartialPressure(mmHg) 44.8
VenaCava-Oxygen-PartialPressure(mmHg) 36.2
VenaCava-CarbonDioxide-PartialPressure(mmHg) 48.6
RightTubules-Sodium-Concentration(g/L) 3.93
LeftTubules-Sodium-Concentration(g/L) 3.93
Oxygen-AlveolarTransfer(mL/min) 8.95
CarbonDioxide-AlveolarTransfer(mL/min) -32.3

Segment 5

Update the sweep gas flow to 2 L/min.

Table 9. Data request validation results for Segment 5.
Property Name Validation Engine Value Percent Error Percent Change Notes
Aorta-Oxygen-PartialPressure(mmHg) EqualTo Segment4 (141) [346] 123 -12.78%   PaO2
Aorta-Oxygen-PartialPressure(mmHg) [71.0,119] [346] 123 3.07%   PaO2
Aorta-CarbonDioxide-PartialPressure(mmHg) GreaterThan Segment4 (44.8) [346] 58.7   30.97% PaCO2
Aorta-CarbonDioxide-PartialPressure(mmHg) [42.0,62.0] [346] 58.7 0.00%   PaCO2
PulmonarySystolicArterialPressure(mmHg) GreaterThan Segment4 (24.3) [346] 24.1 -0.89%   sPAP
PulmonarySystolicArterialPressure(mmHg) [38.0,62.0] [346] 24.1 -36.61%   sPAP


Figure 13. Vitals monitor for Segment 5.



Figure 14. Ventilator monitor for Segment 5.



Figure 15. Landing monitor for Segment 5.


Table 10. Data requests for Segment 5.
Property Name Engine Value
Patient-IdealBodyWeight(kg) 75.3
ExtracorporealMembraneOxygenationDevice-BloodFlow(L/min) 5.80
ExtracorporealMembraneOxygenationDevice-InletOxygenSaturation 0.700
ExtracorporealMembraneOxygenationDevice-OutletOxygenSaturation 0.997
ExtracorporealMembraneOxygenationDevice-MembraneLungOxygenContribution(mL/min) 235
ExtracorporealMembraneOxygenationDevice-MembraneLungCarbonDioxideContribution(mL/min) 124
ExtracorporealMembraneOxygenationDevice-HemoglobinConcentration(g/dL) 8.24
ExtracorporealMembraneOxygenationDevice-SweepGasFlow(L/min) 2.00
ExtracorporealMembraneOxygenationDevice-HydraulicTransmembranePressureGradient(mmHg) 452
ExtracorporealMembraneOxygenationDevice-InletPressure(mmHg) 308
ExtracorporealMembraneOxygenationDevice-OutletPressure(mmHg) 212
ExtracorporealMembraneOxygenationDevice-DrainagePressure(mmHg) -93.4
ExtracorporealMembraneOxygenationDevice-TransmembranePressureGradient(mmHg) 96.7
ExtracorporealMembraneOxygenationDevice-BagVolume(mL) 500
MechanicalVentilator-AirwayPressure(cmH2O) 9.02
MechanicalVentilator-BreathState 6.00
MechanicalVentilator-DynamicRespiratoryCompliance(mL/cmH2O) 20.2
MechanicalVentilator-EndTidalCarbonDioxideFraction 0.0178
MechanicalVentilator-EndTidalCarbonDioxidePressure(mmHg) 13.7
MechanicalVentilator-EndTidalOxygenFraction 0.386
MechanicalVentilator-EndTidalOxygenPressure(mmHg) 296
MechanicalVentilator-ExpiratoryFlow(L/min) 10.4
MechanicalVentilator-ExpiratoryResistance(cmH2O_s/L) 13.1
MechanicalVentilator-ExpiratoryTidalVolume(mL) 105
MechanicalVentilator-ExtrinsicPositiveEndExpiratoryPressure(cmH2O) 9.00
MechanicalVentilator-InspiratoryExpiratoryRatio 1.00
MechanicalVentilator-InspiratoryFlow(L/min) -10.4
MechanicalVentilator-InspiratoryResistance(cmH2O_s/L) 13.1
MechanicalVentilator-InspiratoryTidalVolume(mL) 105
MechanicalVentilator-IntrinsicPositiveEndExpiratoryPressure(cmH2O) 0.281
MechanicalVentilator-LeakFraction 2.92e-13
MechanicalVentilator-MeanAirwayPressure(cmH2O) 10.7
MechanicalVentilator-PeakExpiratoryFlow(L/min) 13.7
MechanicalVentilator-PeakInspiratoryFlow(L/min) 6.60
MechanicalVentilator-PeakInspiratoryPressure(cmH2O) 14.2
MechanicalVentilator-PlateauPressure(cmH2O) 12.7
MechanicalVentilator-RespirationRate(1/min) 30.0
MechanicalVentilator-StaticRespiratoryCompliance(mL/cmH2O) 30.4
MechanicalVentilator-TidalVolume(mL) 105
MechanicalVentilator-TotalLungVolume(mL) 58.2
MechanicalVentilator-TotalPositiveEndExpiratoryPressure(cmH2O) 9.28
MechanicalVentilator-TotalPulmonaryVentilation(L/min) 3.14
HeartRate(1/min) 60.8
HeartStrokeVolume(mL) 117
HeartEjectionFraction 0.645
BloodVolume(L) 5.49
ExtravascularFluidVolume(L) 34.1
MeanArterialPressure(mmHg) 96.5
SystolicArterialPressure(mmHg) 123
DiastolicArterialPressure(mmHg) 66.7
CardiacOutput(L/min) 7.11
HemoglobinContent(g) 450
CentralVenousPressure(mmHg) 3.31
PulmonaryCapillariesWedgePressure(mmHg) 8.43
TidalVolume(mL) 105
RespirationRate(1/min) 30.0
OxygenSaturation 0.983
CarbonDioxideSaturation 0.473
EndTidalCarbonDioxideFraction 0.0326
EndTidalCarbonDioxidePressure(mmHg) 25.0
TotalAlveolarVentilation(L/min) 0.00
TranspulmonaryPressure(cmH2O) 15.6
CoreTemperature(degC) 37.0
SkinTemperature(degC) 30.2
RespiratoryExchangeRatio 0.809
OxygenConsumptionRate(mL/min) 251
CarbonDioxideProductionRate(mL/min) 203
GlomerularFiltrationRate(mL/min) 122
RenalBloodFlow(L/min) 1.34
UrineProductionRate(mL/min) 0.932
LeftAfferentArterioleResistance(mmHg_min/mL) 0.0395
RightAfferentArterioleResistance(mmHg_min/mL) 0.0395
SystemicVascularResistance(mmHg_s/mL) 0.786
BloodPH 7.23
HorowitzIndex(mmHg) 318
Aorta-Oxygen-PartialPressure(mmHg) 123
Aorta-CarbonDioxide-PartialPressure(mmHg) 58.7
VenaCava-Oxygen-PartialPressure(mmHg) 39.4
VenaCava-CarbonDioxide-PartialPressure(mmHg) 65.1
RightTubules-Sodium-Concentration(g/L) 3.95
LeftTubules-Sodium-Concentration(g/L) 3.95
Oxygen-AlveolarTransfer(mL/min) 18.8
CarbonDioxide-AlveolarTransfer(mL/min) 73.0

Scenario Output Plots


Figure 16. Select outputs from the scenario.


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