Mechanical Ventilation ComplicationiHypoPRONCT05550181
Intraoperative Hypocapnia in PROVHILO and PROBESE
An observational study of Mechanical Ventilation Complication and Surgery, run by NMC Specialty Hospital at 4 sites in 4 countries.
Trial summary
To gain a better understanding of the epidemiology of intraoperative hypocapnia, in particular the associations of intraoperative hypocapnia with patient demographics, ventilator characteristics, and perioperative complications we will perform an individual patient-level meta-analysis of two recent randomized clinical… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Mechanical Ventilation Complication, Surgery, Pulmonary Complication
- What is being tested?
- intraoperative mechanical ventilation with hypocapnia (etCO2 < 35 mm Hg)
- Type of treatment
- Lifestyle or therapy programme
- How many people
- 2,793 participants
- Where
- 4 sitesin 4 countries
- Study dates
- 29 Nov 2022to 31 Mar 2023
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Adult patients undergoing mechanical ventilation for general anesthesia for surgery.
Who may be able to join
- Planned for major (abdominal) surgery.
- At risk for postoperative pulmonary complications.
Who cannot join
- Planned thoracic surgery or neurosurgery.
- Unscheduled surgery (i.e., urgent, or emergent surgeries) were excluded because these patients may have had metabolic abnormalities at the moment of surgery, i.e., metabolic acidosis, for which the anesthesiologist may have adjusted the intraoperative ventilator settings. This may have led to a 'compensatory' low etCO2.
- Patients with etCO2 recordings are missing from the study databases.
Trial locations and contacts
4 sites in 4 countries.
4 sites in 4 countries
Germany1 site
University Hospital Carl Gustav Carus, Technische Universität Dresden
Dresden
About this study
Official title: Associations of Intraoperative Hypocapnia With Patient Demographics, Ventilation Characteristics and Outcomes--Statistical Analysis Plan for an Individual Patient Data Analysis of PROVHILO and PROBESE
To gain a better understanding of the epidemiology of intraoperative hypocapnia, in particular the associations of intraoperative hypocapnia with patient demographics, ventilator characteristics, and perioperative complications we will perform an individual patient-level meta-analysis of two recent randomized clinical trials of intraoperative ventilation, the 'PROtective Ventilation using High versus LOw PEEP trial' (PROVHILO), and the 'Protective intraoperative ventilation with higher versus lower levels of positive end-expiratory pressure in obese patients trial' (PROBESE).
Read the detailed description
Lung-protective intraoperative ventilation (LPV) has the potential to improve the outcome of surgery patients through a reduction in postoperative pulmonary complications. Use of intraoperative ventilation strategies that use a low tidal volume could result in intraoperative hypercapnia. However, hypocapnia remains surprisingly common during intraoperative ventilation, possibly meaning that anesthesiologists continue to use high, if not too high respiratory rates or tidal volumes.
Previous studies suggested associations between intraoperative derangement of end-tidal carbon dioxide (etCO2) and postoperative outcomes. Indeed, two studies in highly selected patient groups showed associations of intraoperative hypocapnia with prolonged length of hospital stay, in patients undergoing pancreaticoduodenectomy, and in patients undergoing hysterectomy.
To gain a better understanding of the epidemiology of intraoperative hypocapnia, in particular the associations of intraoperative hypocapnia with patient demographics, ventilator characteristics, and perioperative complications we will perform an individual patient-level meta-analysis of two recent randomized clinical trials of intraoperative ventilation; PROVHILO and PROBESE.
- Conditions
- Mechanical Ventilation Complication, Surgery, Pulmonary Complication, Intraoperative Complications, Postoperative Complications
- Being tested
- intraoperative mechanical ventilation with hypocapnia (etCO2 < 35 mm Hg)
- Keywords
- Postoperative Complications, Intraoperative Complications, Hypocapnia, Mechanical Ventilation
- Medical subject headings
- Intraoperative Complications, Postoperative Complications, Hypocapnia
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
intraoperative mechanical ventilation with hypocapnia (etCO2 < 35 mm Hg)Behavioural
A patient is considered 'hypocapnic' if the etCO2 was < 35 mm Hg at any point during surgery, from start of the study till end of the study and classified as 'without hypocapnia' otherwise. In case of a missing value immediately before extubation, we will use the values as reported in the last hour of surgery.
| Study group | Role | What they receive |
|---|---|---|
| with hypocapnia | We will use the intraoperatively collected etCO2 levels to classify patients as either 'with hypocapnia' or 'without hypercapnia', using the cutoff of 35 mmHg. A patient is considered 'hypocapnic' if the etCO2 was < 35 mm Hg at any point during surgery, from start of the study till end of the study Receives: Behavioral: intraoperative mechanical ventilation with hypocapnia (etCO2 < 35 mm Hg) | |
| without hypocapnia | We will use the intraoperatively collected etCO2 levels to classify patients as either 'with hypocapnia' or 'without hypercapnia', using the cutoff of 35 mmHg. A patient is considered 'hypocapnic' if the etCO2 was < 35 mm Hg at any point during surgery, from start of the study till end of the study, and classified as 'without hypocapnia' otherwise. In case of a missing value immediately before extubation, we will use the values as reported in the last hour of surgery. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Incidence of postoperative pulmonary complications
Composite of predefined and collected postoperative pulmonary complications. Postoperative pulmonary complications included mild, moderate, and severe respiratory failure; acute respiratory distress syndrome; bronchospasm; new pulmonary infiltrate; pulmonary infection; aspiration pneumonitis; pleural effusions; atelectasis; cardiopulmonary edema; and pneumothorax.
Measured: Until day seven or hospital discharge, whichever comes first
Secondary outcomes (6)
Incidence of intraoperative complications
Defined as intraoperative hypotension, arrhythmias; or need for rescue for desaturations; or need for vasoactive drugs.
Measured: Intraoperatively
Incidence of intensive care unit admission
Incidence of intensive care unit admission during hospital stay
Measured: Until hospital discharge, death or 100 days, whichever comes first
Incidence of extrapulmonary pulmonary complications
Measured: Until day seven or hospital discharge, whichever comes first
Incidence of 7-day mortality
Until day seven or hospital discharge, whichever comes first
Measured: Mortality during the first seven days of hospitalization
Incidence of in-hospital mortality
Measured: From date of randomization until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 100 days
Incidence of major postoperative complications
Collapsed composite of complications developing within the first seven postoperative combining severe postoperative pulmonary complications, sepsis, septic shock and/or acute kidney injury
Measured: Until day seven or hospital discharge, whichever comes first
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted22 Sep 2022
- Study start29 Nov 2022
- Primary completion10 Jan 2023
- Study completion31 Mar 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (14)Papers the sponsor has linked to this study.
- Other trials for Mechanical Ventilation ComplicationStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 2,793 participants (actual)
Sponsor and investigators
- Lead sponsor
- NMC Specialty Hospital
- Sponsor type
- University, hospital or other
- Collaborators
- Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA), Hospital Israelita Albert Einstein, University Hospital Carl Gustav Carus, Hospital Clínico Universitario de Valencia
- Responsible party
- Principal investigator, Prashant Nasa, NMC Specialty Hospital
- Investigators
- Sabrine NT Hemmes, PhD, Study chair, Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)David MP van Meenen, PhD, Principal investigator, Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)Frederique Paulus, PhD, Study chair, Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)Marcus J Schultz, PhD, Study director, Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05550181
- Sponsor's protocol ID
- AUMC
- Acronym
- iHypoPRO
- Status last verified
- May 2023
- First submitted
- 17 Sep 2022
- Last updated
- 6 May 2023
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: The harmonized dataset will be available after the publication of the main results and under request to the steering committee
Publications
Deng QW, Tan WC, Zhao BC, Wen SH, Shen JT, Xu M. Intraoperative ventilation strategies to prevent postoperative pulmonary complications: a network meta-analysis of randomised controlled trials. Br J Anaesth. 2020 Mar;124(3):324-335. doi: 10.1016/j.bja.2019.10.024. Epub 2020 Jan 30.
PubMed 32007240Serpa Neto A, Hemmes SN, Barbas CS, Beiderlinden M, Biehl M, Binnekade JM, Canet J, Fernandez-Bustamante A, Futier E, Gajic O, Hedenstierna G, Hollmann MW, Jaber S, Kozian A, Licker M, Lin WQ, Maslow AD, Memtsoudis SG, Reis Miranda D, Moine P, Ng T, Paparella D, Putensen C, Ranieri M, Scavonetto F, Schilling T, Schmid W, Selmo G, Severgnini P, Sprung J, Sundar S, Talmor D, Treschan T, Unzueta C, Weingarten TN, Wolthuis EK, Wrigge H, Gama de Abreu M, Pelosi P, Schultz MJ; PROVE Network Investigators. Protective versus Conventional Ventilation for Surgery: A Systematic Review and Individual Patient Data Meta-analysis. Anesthesiology. 2015 Jul;123(1):66-78. doi: 10.1097/ALN.0000000000000706.
PubMed 25978326PROVE Network Investigators for the Clinical Trial Network of the European Society of Anaesthesiology; Hemmes SN, Gama de Abreu M, Pelosi P, Schultz MJ. High versus low positive end-expiratory pressure during general anaesthesia for open abdominal surgery (PROVHILO trial): a multicentre randomised controlled trial. Lancet. 2014 Aug 9;384(9942):495-503. doi: 10.1016/S0140-6736(14)60416-5. Epub 2014 Jun 2.
PubMed 24894577Akkermans A, van Waes JAR, Thompson A, Shanks A, Peelen LM, Aziz MF, Biggs DA, Paganelli WC, Wanderer JP, Helsten DL, Kheterpal S, van Klei WA, Saager L. An observational study of end-tidal carbon dioxide trends in general anesthesia. Can J Anaesth. 2019 Feb;66(2):149-160. doi: 10.1007/s12630-018-1249-1. Epub 2018 Nov 14.
PubMed 30430440Dony P, Dramaix M, Boogaerts JG. Hypocapnia measured by end-tidal carbon dioxide tension during anesthesia is associated with increased 30-day mortality rate. J Clin Anesth. 2017 Feb;36:123-126. doi: 10.1016/j.jclinane.2016.10.028. Epub 2016 Dec 2.
PubMed 28183549Dong L, Takeda C, Yamazaki H, Kamitani T, Kimachi M, Hamada M, Fukuhara S, Mizota T, Yamamoto Y. Intraoperative end-tidal carbon dioxide and postoperative mortality in major abdominal surgery: a historical cohort study. Can J Anaesth. 2021 Nov;68(11):1601-1610. doi: 10.1007/s12630-021-02086-z. Epub 2021 Aug 6.
PubMed 34357567Park JH, Lee HM, Kang CM, Kim KS, Jang CH, Hwang HK, Lee JR. Correlation of Intraoperative End-Tidal Carbon Dioxide Concentration on Postoperative Hospital Stay in Patients Undergoing Pylorus-Preserving Pancreaticoduodenectomy. World J Surg. 2021 Jun;45(6):1860-1867. doi: 10.1007/s00268-021-05984-x. Epub 2021 Feb 16.
PubMed 33591427Wax DB, Lin HM, Hossain S, Porter SB. Intraoperative carbon dioxide management and outcomes. Eur J Anaesthesiol. 2010 Sep;27(9):819-23. doi: 10.1097/EJA.0b013e32833cca07.
PubMed 20613537Writing Committee for the PROBESE Collaborative Group of the PROtective VEntilation Network (PROVEnet) for the Clinical Trial Network of the European Society of Anaesthesiology; Bluth T, Serpa Neto A, Schultz MJ, Pelosi P, Gama de Abreu M; PROBESE Collaborative Group; Bluth T, Bobek I, Canet JC, Cinnella G, de Baerdemaeker L, Gama de Abreu M, Gregoretti C, Hedenstierna G, Hemmes SNT, Hiesmayr M, Hollmann MW, Jaber S, Laffey J, Licker MJ, Markstaller K, Matot I, Mills GH, Mulier JP, Pelosi P, Putensen C, Rossaint R, Schmitt J, Schultz MJ, Senturk M, Serpa Neto A, Severgnini P, Sprung J, Vidal Melo MF, Wrigge H. Effect of Intraoperative High Positive End-Expiratory Pressure (PEEP) With Recruitment Maneuvers vs Low PEEP on Postoperative Pulmonary Complications in Obese Patients: A Randomized Clinical Trial. JAMA. 2019 Jun 18;321(23):2292-2305. doi: 10.1001/jama.2019.7505.
PubMed 31157366Neto AS, Hemmes SN, Barbas CS, Beiderlinden M, Fernandez-Bustamante A, Futier E, Gajic O, El-Tahan MR, Ghamdi AA, Gunay E, Jaber S, Kokulu S, Kozian A, Licker M, Lin WQ, Maslow AD, Memtsoudis SG, Reis Miranda D, Moine P, Ng T, Paparella D, Ranieri VM, Scavonetto F, Schilling T, Selmo G, Severgnini P, Sprung J, Sundar S, Talmor D, Treschan T, Unzueta C, Weingarten TN, Wolthuis EK, Wrigge H, Amato MB, Costa EL, de Abreu MG, Pelosi P, Schultz MJ; PROVE Network Investigators. Association between driving pressure and development of postoperative pulmonary complications in patients undergoing mechanical ventilation for general anaesthesia: a meta-analysis of individual patient data. Lancet Respir Med. 2016 Apr;4(4):272-80. doi: 10.1016/S2213-2600(16)00057-6. Epub 2016 Mar 4.
PubMed 26947624Amato MB, Meade MO, Slutsky AS, Brochard L, Costa EL, Schoenfeld DA, Stewart TE, Briel M, Talmor D, Mercat A, Richard JC, Carvalho CR, Brower RG. Driving pressure and survival in the acute respiratory distress syndrome. N Engl J Med. 2015 Feb 19;372(8):747-55. doi: 10.1056/NEJMsa1410639.
PubMed 25693014Gattinoni L, Tonetti T, Cressoni M, Cadringher P, Herrmann P, Moerer O, Protti A, Gotti M, Chiurazzi C, Carlesso E, Chiumello D, Quintel M. Ventilator-related causes of lung injury: the mechanical power. Intensive Care Med. 2016 Oct;42(10):1567-1575. doi: 10.1007/s00134-016-4505-2. Epub 2016 Sep 12.
PubMed 27620287van Meenen DMP, Serpa Neto A, Paulus F, Merkies C, Schouten LR, Bos LD, Horn J, Juffermans NP, Cremer OL, van der Poll T, Schultz MJ; MARS Consortium. The predictive validity for mortality of the driving pressure and the mechanical power of ventilation. Intensive Care Med Exp. 2020 Dec 18;8(Suppl 1):60. doi: 10.1186/s40635-020-00346-8.
PubMed 33336298Nasa P, van Meenen DMP, Paulus F, Ferrando C, Bluth T, Gama de Abreu M, Ball L, Bossers SM, Schober P, Schultz MJ, Serpa Neto A, Hemmes SNT; REPEAT; PROVHILO; PROBESE; investigators of the PROVE network; ESAIC CTN. Association of intraoperative end-tidal CO2 levels with postoperative outcomes: a patient-level analysis of two randomised clinical trials. Br J Anaesth. 2025 Dec;135(6):1761-1769. doi: 10.1016/j.bja.2025.07.076. Epub 2025 Sep 10.
PubMed 40930872
Study at a glance
From the registry record, last updated by the sponsor on 6 May 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Associations of Intraoperative Hypocapnia With Patient Demographics, Ventilation Characteristics and Outcomes--Statistical Analysis Plan for an Individual Patient Data Analysis of PROVHILO and PROBESE
- ClinicalTrials.gov ID
- NCT05550181
- Acronym / sponsor ID
- iHypoPRO / AUMC
- Conditions
- Mechanical Ventilation Complication, Surgery, Pulmonary Complication, Intraoperative Complications, Postoperative Complications
- Keywords
- Postoperative Complications, Intraoperative Complications, Hypocapnia, Mechanical Ventilation
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 2,793 participants (actual)
- Lead sponsor
- NMC Specialty HospitalUniversity, hospital or other
- Collaborators
- Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA), Hospital Israelita Albert Einstein, University Hospital Carl Gustav Carus, Hospital Clínico Universitario de Valencia
- Study start
- 29 Nov 2022 (actual)
- Primary completion
- 10 Jan 2023 (actual)
- Study completion
- 31 Mar 2023 (actual)
- First posted
- 22 Sep 2022 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
To gain a better understanding of the epidemiology of intraoperative hypocapnia, in particular the associations of intraoperative hypocapnia with patient demographics, ventilator characteristics, and perioperative complications we will perform an individual patient-level meta-analysis of two recent randomized clinical trials of intraoperative ventilation, the 'PROtective Ventilation using High versus LOw PEEP trial' (PROVHILO), and the 'Protective intraoperative ventilation with higher versus lower levels of positive end-expiratory pressure in obese patients trial' (PROBESE).
Detailed description
Lung-protective intraoperative ventilation (LPV) has the potential to improve the outcome of surgery patients through a reduction in postoperative pulmonary complications. Use of intraoperative ventilation strategies that use a low tidal volume could result in intraoperative hypercapnia. However, hypocapnia remains surprisingly common during intraoperative ventilation, possibly meaning that anesthesiologists continue to use high, if not too high respiratory rates or tidal volumes.
Previous studies suggested associations between intraoperative derangement of end-tidal carbon dioxide (etCO2) and postoperative outcomes. Indeed, two studies in highly selected patient groups showed associations of intraoperative hypocapnia with prolonged length of hospital stay, in patients undergoing pancreaticoduodenectomy, and in patients undergoing hysterectomy.
To gain a better understanding of the epidemiology of intraoperative hypocapnia, in particular the associations of intraoperative hypocapnia with patient demographics, ventilator characteristics, and perioperative complications we will perform an individual patient-level meta-analysis of two recent randomized clinical trials of intraoperative ventilation; PROVHILO and PROBESE.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| with hypocapnia | – | Behavioral: intraoperative mechanical ventilation with hypocapnia (etCO2 < 35 mm Hg)We will use the intraoperatively collected etCO2 levels to classify patients as either 'with hypocapnia' or 'without hypercapnia', using the cutoff of 35 mmHg. A patient is considered 'hypocapnic' if the etCO2 was < 35 mm Hg at any point during surgery, from start of the study till end of the study |
| without hypocapnia | – | –We will use the intraoperatively collected etCO2 levels to classify patients as either 'with hypocapnia' or 'without hypercapnia', using the cutoff of 35 mmHg. A patient is considered 'hypocapnic' if the etCO2 was < 35 mm Hg at any point during surgery, from start of the study till end of the study, and classified as 'without hypocapnia' otherwise. In case of a missing value immediately before extubation, we will use the values as reported in the last hour of surgery. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Adult patients undergoing mechanical ventilation for general anesthesia for surgery.
Key inclusion criteria (2 listed)
- Planned for major (abdominal) surgery.
- At risk for postoperative pulmonary complications.
Key exclusion criteria (3 listed)
- Planned thoracic surgery or neurosurgery.
- Unscheduled surgery (i.e., urgent, or emergent surgeries) were excluded because these patients may have had metabolic abnormalities at the moment of surgery, i.e., metabolic acidosis, for which the anesthesiologist may have adjusted the intraoperative ventilator settings. This may have led to a 'compensatory' low etCO2.
- Patients with etCO2 recordings are missing from the study databases.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| intraoperative mechanical ventilation with hypocapnia (etCO2 < 35 mm Hg)A patient is considered 'hypocapnic' if the etCO2 was < 35 mm Hg at any point during surgery, from start of the study till end of the study and classified as 'without hypocapnia' otherwise. In case of a missing value immediately before extubation, we will use the values as reported in the last hour of surgery. | Behavioural | with hypocapnia |
Primary outcome
Incidence of postoperative pulmonary complications
Time frame: Until day seven or hospital discharge, whichever comes first
Composite of predefined and collected postoperative pulmonary complications. Postoperative pulmonary complications included mild, moderate, and severe respiratory failure; acute respiratory distress syndrome; bronchospasm; new pulmonary infiltrate; pulmonary infection; aspiration pneumonitis; pleural effusions; atelectasis; cardiopulmonary edema; and pneumothorax.
6 secondary outcomes
Incidence of intraoperative complications
Time frame: Intraoperatively
Incidence of intensive care unit admission
Time frame: Until hospital discharge, death or 100 days, whichever comes first
Incidence of extrapulmonary pulmonary complications
Time frame: Until day seven or hospital discharge, whichever comes first
Incidence of 7-day mortality
Time frame: Mortality during the first seven days of hospitalization
Incidence of in-hospital mortality
Time frame: From date of randomization until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 100 days
Incidence of major postoperative complications
Time frame: Until day seven or hospital discharge, whichever comes first
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 May 2023.
- Background: PubMed 32007240Deng QW, Tan WC, Zhao BC, Wen SH, Shen JT, Xu M. Intraoperative ventilation strategies to prevent postoperative pulmonary complications: a network meta-analysis of randomised controlled trials. Br J Anaesth. 2020 Mar;124(3):324-335. doi: 10.1016/j.bja.2019.10.024. Epub 2020 Jan 30.
- Background: PubMed 25978326Serpa Neto A, Hemmes SN, Barbas CS, Beiderlinden M, Biehl M, Binnekade JM, Canet J, Fernandez-Bustamante A, Futier E, Gajic O, Hedenstierna G, Hollmann MW, Jaber S, Kozian A, Licker M, Lin WQ, Maslow AD, Memtsoudis SG, Reis Miranda D, Moine P, Ng T, Paparella D, Putensen C, Ranieri M, Scavonetto F, Schilling T, Schmid W, Selmo G, Severgnini P, Sprung J, Sundar S, Talmor D, Treschan T, Unzueta C, Weingarten TN, Wolthuis EK, Wrigge H, Gama de Abreu M, Pelosi P, Schultz MJ; PROVE Network Investigators. Protective versus Conventional Ventilation for Surgery: A Systematic Review and Individual Patient Data Meta-analysis. Anesthesiology. 2015 Jul;123(1):66-78. doi: 10.1097/ALN.0000000000000706.
- Background: PubMed 24894577PROVE Network Investigators for the Clinical Trial Network of the European Society of Anaesthesiology; Hemmes SN, Gama de Abreu M, Pelosi P, Schultz MJ. High versus low positive end-expiratory pressure during general anaesthesia for open abdominal surgery (PROVHILO trial): a multicentre randomised controlled trial. Lancet. 2014 Aug 9;384(9942):495-503. doi: 10.1016/S0140-6736(14)60416-5. Epub 2014 Jun 2.
- Background: PubMed 30430440Akkermans A, van Waes JAR, Thompson A, Shanks A, Peelen LM, Aziz MF, Biggs DA, Paganelli WC, Wanderer JP, Helsten DL, Kheterpal S, van Klei WA, Saager L. An observational study of end-tidal carbon dioxide trends in general anesthesia. Can J Anaesth. 2019 Feb;66(2):149-160. doi: 10.1007/s12630-018-1249-1. Epub 2018 Nov 14.
- Background: PubMed 28183549Dony P, Dramaix M, Boogaerts JG. Hypocapnia measured by end-tidal carbon dioxide tension during anesthesia is associated with increased 30-day mortality rate. J Clin Anesth. 2017 Feb;36:123-126. doi: 10.1016/j.jclinane.2016.10.028. Epub 2016 Dec 2.
- Background: PubMed 34357567Dong L, Takeda C, Yamazaki H, Kamitani T, Kimachi M, Hamada M, Fukuhara S, Mizota T, Yamamoto Y. Intraoperative end-tidal carbon dioxide and postoperative mortality in major abdominal surgery: a historical cohort study. Can J Anaesth. 2021 Nov;68(11):1601-1610. doi: 10.1007/s12630-021-02086-z. Epub 2021 Aug 6.
- Background: PubMed 33591427Park JH, Lee HM, Kang CM, Kim KS, Jang CH, Hwang HK, Lee JR. Correlation of Intraoperative End-Tidal Carbon Dioxide Concentration on Postoperative Hospital Stay in Patients Undergoing Pylorus-Preserving Pancreaticoduodenectomy. World J Surg. 2021 Jun;45(6):1860-1867. doi: 10.1007/s00268-021-05984-x. Epub 2021 Feb 16.
- Background: PubMed 20613537Wax DB, Lin HM, Hossain S, Porter SB. Intraoperative carbon dioxide management and outcomes. Eur J Anaesthesiol. 2010 Sep;27(9):819-23. doi: 10.1097/EJA.0b013e32833cca07.
- Background: PubMed 31157366Writing Committee for the PROBESE Collaborative Group of the PROtective VEntilation Network (PROVEnet) for the Clinical Trial Network of the European Society of Anaesthesiology; Bluth T, Serpa Neto A, Schultz MJ, Pelosi P, Gama de Abreu M; PROBESE Collaborative Group; Bluth T, Bobek I, Canet JC, Cinnella G, de Baerdemaeker L, Gama de Abreu M, Gregoretti C, Hedenstierna G, Hemmes SNT, Hiesmayr M, Hollmann MW, Jaber S, Laffey J, Licker MJ, Markstaller K, Matot I, Mills GH, Mulier JP, Pelosi P, Putensen C, Rossaint R, Schmitt J, Schultz MJ, Senturk M, Serpa Neto A, Severgnini P, Sprung J, Vidal Melo MF, Wrigge H. Effect of Intraoperative High Positive End-Expiratory Pressure (PEEP) With Recruitment Maneuvers vs Low PEEP on Postoperative Pulmonary Complications in Obese Patients: A Randomized Clinical Trial. JAMA. 2019 Jun 18;321(23):2292-2305. doi: 10.1001/jama.2019.7505.
- Background: PubMed 26947624Neto AS, Hemmes SN, Barbas CS, Beiderlinden M, Fernandez-Bustamante A, Futier E, Gajic O, El-Tahan MR, Ghamdi AA, Gunay E, Jaber S, Kokulu S, Kozian A, Licker M, Lin WQ, Maslow AD, Memtsoudis SG, Reis Miranda D, Moine P, Ng T, Paparella D, Ranieri VM, Scavonetto F, Schilling T, Selmo G, Severgnini P, Sprung J, Sundar S, Talmor D, Treschan T, Unzueta C, Weingarten TN, Wolthuis EK, Wrigge H, Amato MB, Costa EL, de Abreu MG, Pelosi P, Schultz MJ; PROVE Network Investigators. Association between driving pressure and development of postoperative pulmonary complications in patients undergoing mechanical ventilation for general anaesthesia: a meta-analysis of individual patient data. Lancet Respir Med. 2016 Apr;4(4):272-80. doi: 10.1016/S2213-2600(16)00057-6. Epub 2016 Mar 4.
- Background: PubMed 25693014Amato MB, Meade MO, Slutsky AS, Brochard L, Costa EL, Schoenfeld DA, Stewart TE, Briel M, Talmor D, Mercat A, Richard JC, Carvalho CR, Brower RG. Driving pressure and survival in the acute respiratory distress syndrome. N Engl J Med. 2015 Feb 19;372(8):747-55. doi: 10.1056/NEJMsa1410639.
- Background: PubMed 27620287Gattinoni L, Tonetti T, Cressoni M, Cadringher P, Herrmann P, Moerer O, Protti A, Gotti M, Chiurazzi C, Carlesso E, Chiumello D, Quintel M. Ventilator-related causes of lung injury: the mechanical power. Intensive Care Med. 2016 Oct;42(10):1567-1575. doi: 10.1007/s00134-016-4505-2. Epub 2016 Sep 12.
- Individual participant dataSharing planned: Yes. The harmonized dataset will be available after the publication of the main results and under request to the steering committee
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Sabrine NT Hemmes, PhD study chair
Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
David MP van Meenen, PhD principal investigator
Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
Frederique Paulus, PhD study chair
Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
4 sites in 4 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Mechanical Ventilation Complication and Surgery, run by NMC Specialty Hospital at 4 sites in 4 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 6 May 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 4 sites in Brazil, Germany, Italy, Spain. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Incidence of postoperative pulmonary complications (time frame: Until day seven or hospital discharge, whichever comes first). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05550181, which also lists 14 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 May 2023.