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Comparison · NCT00934596-sae

Lund De-airing vs Carbon-dioxide Insufflation: serious adverse events

Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.

2 sourcestrial-comparisons-2026-03-23-0.1.0

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ConductScience Library. Lund De-airing vs Carbon-dioxide Insufflation: serious adverse events. Trial comparisons, record NCT00934596-sae. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT00934596-sae

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Measures6

Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.

MeasureValue95% interval, lower95% interval, upperMethodNote
Risk in group 1000.278wilson
Risk in group 2000.278wilson
Risk difference, group 1 minus group 20-0.2780.278newcombe hybrid score
Risk ratio, group 1 over group 2loga group has no participants with the outcome
Odds ratio, group 1 over group 2loga cell of the two-by-two table is zero
Number needed to harmfrom the risk difference intervalthe two groups' risks are equal

Groups2

Neither group, or both, names a comparator, so the groups keep ClinicalTrials.gov's order.

GroupTitleDescriptionWith the outcomeAnalysedClinicalTrials.gov code
Group 1Lund De-airing
Before CPB was started, both pleural cavities were exposed to atmospheric air through small openings in the mediastinal pleurae. After CPB was established the patient was disconnected from the ventilator, allowing both lungs to collapse. After completion of the surgical procedure the aortic crossclamp was released and the heart was then defibrillated. After a good cardiac contraction and normal central hemodynamics, the LV preload was gradually and successively. When no air emboli were observed in the left side of the heart, the patient was reconnected to the ventilator and the lungs were ventilated with half of the estimated minute volume using 100% oxygen and 5 cm H2O positive end-expiratory pressure. The deairing was continued, and when no air emboli were observed in the left side of the heart, the lungs were ventilated to full capacity and the heart was allowed to eject by reducing the LV vent.
010EG000
Group 2Carbon-dioxide Insufflation
The pleural cavities were left intact in the CO2 group. During CPB, the patient was administerd dead space ventilation. Before the cannulation for CPB, the CO2 was insufflated in the mediastinum at a flow rate of 10 L/min and continued until 10 minutes post-CPB. After completion of the surgical procedure, the heart and lungs were passively filled with blood from the CPB circuit and the left side was de-aired continuously through the LV apical vent. Full ventilation was then resumed. The heart was defibrillated and the LV preload was gradually and successively increased by reducing the venous return to the CPB circuit. The de-airing continued through the vent in the LV apex under TEE monitoring. When no gas emboli were observed in the left side of the heart, the LV vent was reduced and the heart was allowed to ject. De-airing was continued, and when no further gas emboli were observed in the left side of the heart, the patient was weaned from CPB.
010EG001

Harm

What it counts
Total, serious adverse events
Time frame
Data was collected during the postoperative course when patient was still in ward (median time 7 Days).

Source ClinicalTrials.gov

Trial

Title
CO2 Versus Lund De-airing Technique in Heart Surgery
NCT number
NCT00934596
Phases
NA
Conditions
Aortic Valve Disorder
Interventions
Lund de-airing technique, carbon-dioxide insufflation
Lead sponsor
Lund University
Results first posted
2013-12-04

Source ClinicalTrials.gov

Source

Release
trial-comparisons-2026-03-23-0.1.0
Release manifest SHA-256
f66225897fbf258b57ea10bdacfd0347d3cdfda93f7f5685234b7e06ea36fa57
AACT copy
2026-03-23
Tables read
outcome_counts.parquet, outcome_measurements.parquet, outcomes.parquet, reported_event_totals.parquet, reported_events.parquet, result_groups.parquet, studies.parquet, ctgov_trial.parquet

Source ClinicalTrials.gov

Sources 2

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions. The measures are ConductScience's calculation from them.

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