Trial · NCT07385898
Registered outcomes22
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
1 to 20 of 22
Download this page as JSON| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | oxygenation index | When patients enter the operation room (T0), 5 minutes after completion of pneumoperitoneum and trendelenburg position (T1), 30 (T2) and 60 (T3) minutes after trendelenburg position, when extubate the endotracheal tube (about 30 min postoperatively, T4) | oxygenation index is the ratio of partial pressure of O2 in arterial blood to fraction of inspired oxygen, namely PaO2/FiO2 ratio. |
| Secondary | PaCO2 | When patients enter the operation room (T0), 5 minutes after completion of pneumoperitoneum and trendelenburg position (T1), 30 (T2) and 60 (T3) minutes after trendelenburg position, when extubate the endotracheal tube (about 30 min postoperatively, T4) | arterial carbon dioxide pressure assessed by arterial blood gas measurement. |
| Secondary | EtCO2 | 5 minutes after establishment of pneumoperitoneum and trendelenburg position (T1), 30 minutes after trendelenburg position (T2), 60 minutes after trendelenburg position (T3) | end-tidal carbon dioxide pressure assessed by arterial blood gas measurement. |
| Secondary | Pplat | 5 minutes after establishment of pneumoperitoneum and trendelenburg position (T1), 30 minutes after trendelenburg position (T2), 60 minutes after trendelenburg position (T3) | plateau pressure (Pplat) is the end-inspiratory airway pressure and is measured just after airflow has ceased, which is displayed automatically on the anesthesia machine. |
| Secondary | Ppeak | 5 minutes after establishment of pneumoperitoneum and trendelenburg position (T1), 30 minutes after trendelenburg position (T2), 60 minutes after trendelenburg position (T3) | peak airway pressure is the highest pressure measured during the respiratory cycle and is a function of both the resistance of the airways and the compliance of the respiratory system, which is displayed automatically on the anesthesia machine. |
| Secondary | lung compliance | 5 minutes after establishment of pneumoperitoneum and trendelenburg position (T1), 30 minutes after trendelenburg position (T2), 60 minutes after trendelenburg position (T3) | lung compliance is defined as the change in lung volume for a unit change in transalveolar pressure, which is displayed automatically on the anesthesia machine. |
| Secondary | Vd/Vt | 5 minutes after establishment of pneumoperitoneum and trendelenburg position (T1), 30 minutes after trendelenburg position (T2), 60 minutes after trendelenburg position (T3) | Vd/Vt represents dead space ventilation, which is the volume of ventilated air that does not participate in gas exchange. Vd/Vt = 1.14 × (PaCO2-EtCO2) / PaCO2-0.005. |
| Secondary | Qs/Qt | When patients enter the operation room (T0), 5 minutes after completion of pneumoperitoneum and trendelenburg position (T1), 30 (T2) and 60 (T3) minutes after trendelenburg position, when extubate the endotracheal tube (about 30 min postoperatively, T4) | Qs/Qt is a measurement of pulmonary shunt. It describes the percentage of blood that reaches the left side of the heart without picking up oxygen. Qs/Qt = (CcO2 - CaO2) / (CcO2 - CvO2), where CcO2 = pulmonary end-capillary O2 content, same as alveolar O2 content, CaO2 = arterial O2 content, CvO2 = mixed venous O2 content. |
| Secondary | PA-aO2 | When patients enter the operation room (T0), 5 minutes after completion of pneumoperitoneum and trendelenburg position (T1), 30 (T2) and 60 (T3) minutes after trendelenburg position, when extubate the endotracheal tube (about 30 min postoperatively, T4) | alveolar-arterial oxygen gradient measures the difference between the oxygen concentration in the alveoli and arterial system, which can be obtained from the arterial blood gas measurement. |
| Secondary | SPO2 | When patients enter the operation room (T0), 5 minutes after trendelenburg position (T1), 30 (T2) and 60 (T3) minutes after trendelenburg position, when extubate the endotracheal tube (about 30 min postoperatively, T4), postoperative day 1-3 | oxygen saturation refers to the amount of oxygen bound to hemoglobin in arterial blood. |
| Secondary | Blood pressure | When patients enter the operation room (T0), 5 minutes after trendelenburg position (T1), 30 (T2) and 60 (T3) minutes after trendelenburg position, when extubate the endotracheal tube (about 30 min postoperatively, T4), postoperative day 1-3 | Systolic blood pressure, diastolic blood pressure, mean arterial pressure |
| Secondary | HR | When patients enter the operation room (T0), 5 minutes after trendelenburg position (T1), 30 (T2) and 60 (T3) minutes after trendelenburg position, when extubate the endotracheal tube (about 30 min postoperatively, T4), postoperative day 1-3 | hear rate |
| Secondary | Lac | When patients enter the operation room (T0), 5 (T1), 30 (T2) and 60 (T3) min after trendelenburg position, and when the tracheal tube was extubated (T4) | lactic acid in blood |
| Secondary | WBC | before surgery, postoperative day 1 | White blood cell counting in blood |
| Secondary | NEU | before surgery, postoperative day 1 | neutrophil counting in blood |
| Secondary | NEU(%) | before surgery, postoperative day 1 | percentage of neutrophil in blood |
| Secondary | TV | before surgery, postoperative day 1 | Tidal Volume |
| Secondary | MVV | before surgery, postoperative day 1 | minute ventilation volume |
| Secondary | RR | before surgery, postoperative day 1 | respiration rate |
| Secondary | Postoperative pulmonary complications | postoperative day 1, 2, and 3 | The incidence of postoperative pulmonary complications was assessed according to the Assess Respiratory Risk in Surgical Patients in Catalonia (ARISCAT) definition. |
Source ClinicalTrials.govtrials-2026-11-12-0.5.0
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
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
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
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