Individualized Perioperative Open Lung Ventilatory Strategy (iPROVE)

Postoperative Complication and Hospital Stay Reduction With a Individualized Perioperative Lung Protective Ventilation. A Comparative, Prospective, Multicenter, Randomized Controlled Trial.

The purpose of this study is to determine whether individualized ventilatory management combining the use of low tidal volumes, alveolar recruitment maneuvers, individually titrated positive end-expiratory pressure and postoperative individualized ventilatory support will decrease postoperative complications, unplanned ICU readmissions, ICU and hospital length of stay and mortality compared to a standardized Lung Protective Ventilation (LPV) for all patients at risk.

Study Overview

• Status: Completed
• Conditions: Moderated-high Risk of Postoperative Pulmonary Complication; Abdominal Surgery Expected More Than Two Hours
• Intervention / Treatment: Procedure: Alveolar recruitment maneuver; Procedure: Calculation of optimal PEEP; Procedure: Postoperative CPAP

• Study Type: Interventional
• Enrollment (Actual): 920
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Argentina
  • Buenos Aires
    • Mar de Plata, Buenos Aires, Argentina, 7600
      • Hospital Privado de La Comunidad
• Spain
  • Barcelona, Spain, 08026
    • Hospital De La Santa Creu I Sant Pau
  • Madrid, Spain, 28007
    • Hospital Gregorio Marañon
  • Valencia, Spain, 46010
    • Department of Anesthesia and Critical Care; Hospital Clinico Universitario
  • Barcelona
    • Badalona, Barcelona, Spain, 08916
      • Hospital Germans Trias i Pujol
• Sweden
  • Uppland
    • Uppsala, Uppland, Sweden
      • Uppsala University Hospital
• United States
  • Massachusetts
    • Boston, Massachusetts, United States, MA 02114
      • Massachusetts General Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (ADULT, OLDER_ADULT)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Age not less than 18
• Risk of postoperative pulmonary complication moderate-high defined by a score ≥ 26 on the risk scale ARISCAT (based on the analysis of seven factors, where a score between 26 and 44 points defines a moderate risk, and a score> 44 points define a high risk, included in the Information Booklet Investigator).
• Planned abdominal surgery> 2 hours.
• Signed informed consent for participation in the study.

Exclusion Criteria:

• Age less than 18 years.
• Pregnant or breast-feeding.
• Patients with BMI >35.
• Syndrome of moderate or severe respiratory distress: PaO2/FiO2 < 200 mmHg.
• Heart failure: NYHA IV.
• Hemodynamic failure: CI <2.5 L/min/m2 and / or requirements before surgery ionotropic support.
• Diagnosis or suspicion of intracranial hypertension (intracranial pressure> 15 mmHg).
• Mechanical ventilation in the last 15 days.
• Presence of pneumothorax. Presence of giant bullae on chest radiography or computed tomography (CT).
• Patient with preoperatively CPAP.
• Participation in another experimental protocol at the time of intervention selection.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: PREVENTION
• Allocation: RANDOMIZED
• Interventional Model: FACTORIAL
• Masking: SINGLE

Number of Arms

4

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Individualized ventilation; Intraoperatively ventilated patients with a tidal volume (VT) of 8 ml / kg of ideal body weight, and a FiO2 of 0.8. After intubation, all patients were conduct an alveolar recruitment maneuver (MRA) and PEEP level individualized spanned (see Calculation of optimal PEEP). Every 40 minutes will be assessed the need to adjust the level of PEEP by evaluating the dynamic compliance of the respiratory system (Crs). Faced with a decline in Crs> 10% a new MRA and optimal PEEP setting will be assessed.	Procedure: Alveolar recruitment maneuver; To start Alveolar Recruitment Maneuver (ARM), change ventilatory pressure-controlled mode (PCV) with 15 cmH2O pressure control ventilation. A respiratory rate (RR) of 15 rpm, inspiration: expiration ratio of 1:1, FiO2 of 0.8 and PEEP of 10 cmH2O. PEEP level will increase 5 on 5 cmH2O every 10 respiratory cycles, increasing to 15 cycles in the last level of PEEP (25 cmH2O), getting an opening pressure at 40 cmH2O airway (duration of the maneuver: 160 sec.); Procedure: Calculation of optimal PEEP; Change ventilation mode to volume controlled ventilation (VCV) with a VT of 8 ml / kg, RR 15 rpm and adjust a PEEP of 20 cmH2O. Descend PEEP level 2 by 2 cmH2O every 30 seconds until obtain the best respiratory system compliance (Crs) PEEP. Once you know the optimal level of PEEP (best Crs PEEP), will be conducted again alveolar recruitment maneuver and adjust the best Crs level of PEEP + 2 cmH2O .
Experimental: Individualized vent. + postop. CPAP; Intraoperatively ventilated patients with a tidal volume of 8 ml / kg of ideal body weight, and a FiO2 of 0.8. After intubation, all patients were conduct an alveolar recruitment maneuver (MRA) and PEEP level individualized spanned (see Calculation of optimal PEEP). Every 40 minutes will be assessed the need to adjust the level of PEEP by evaluating the dynamic compliance of the respiratory system (Crs). Faced with a decline in Crs> 10% a new MRA and optimal PEEP setting will be assessed. Postoperatively a CPAP of 5 cmH2O (or 10 cmH2O if BMI> 30) with a FiO2 of 0.5 will be applied.	Procedure: Alveolar recruitment maneuver; To start Alveolar Recruitment Maneuver (ARM), change ventilatory pressure-controlled mode (PCV) with 15 cmH2O pressure control ventilation. A respiratory rate (RR) of 15 rpm, inspiration: expiration ratio of 1:1, FiO2 of 0.8 and PEEP of 10 cmH2O. PEEP level will increase 5 on 5 cmH2O every 10 respiratory cycles, increasing to 15 cycles in the last level of PEEP (25 cmH2O), getting an opening pressure at 40 cmH2O airway (duration of the maneuver: 160 sec.); Procedure: Calculation of optimal PEEP; Change ventilation mode to volume controlled ventilation (VCV) with a VT of 8 ml / kg, RR 15 rpm and adjust a PEEP of 20 cmH2O. Descend PEEP level 2 by 2 cmH2O every 30 seconds until obtain the best respiratory system compliance (Crs) PEEP. Once you know the optimal level of PEEP (best Crs PEEP), will be conducted again alveolar recruitment maneuver and adjust the best Crs level of PEEP + 2 cmH2O .; Procedure: Postoperative CPAP; Postoperatively, non-invasive mechanical ventilation with a CPAP of 5 cmH2O (or 10 cmH2O if BMI> 30) with a FiO2 of 0.5 will be applied.
No Intervention: Standard ventilation; Intraoperatively ventilated patients with a tidal volume of 8 ml / kg of ideal body weight, PEEP 6 cmH2O and FiO2 0.8. In these groups no recruitment maneuvers or optimal PEEP setting will be performed.
Active Comparator: Standard vent. + postoperative CPAP; Intraoperatively ventilated patients with a tidal volume of 8 ml / kg of ideal body weight, PEEP 6 cmH2O and FiO2 0.8. In these groups no recruitment maneuvers or optimal PEEP setting will be performed. Postoperatively, a CPAP of 5 cmH2O (or 10 cmH2O if BMI> 30) with a FiO2 of 0.5 will be applied.	Procedure: Postoperative CPAP; Postoperatively, non-invasive mechanical ventilation with a CPAP of 5 cmH2O (or 10 cmH2O if BMI> 30) with a FiO2 of 0.5 will be applied.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
Reduction of lung and systemic postoperative complications	Up to 7 postoperative days

Secondary Outcome Measures

Outcome Measure	Time Frame
Reduction of lung and systemic postoperative complications	Up to 30 postoperative days

Other Outcome Measures

Outcome Measure	Time Frame
Mortality evaluation	180 and 365 days postoperative

Collaborators and Investigators

• Sponsor: Fundación para la Investigación del Hospital Clínico de Valencia
• Collaborators: Hospital General Universitario Gregorio Marañon; Germans Trias i Pujol Hospital; Hospital de Basurto; Hospital del Mar; Hospital Universitario Virgen de la Arrixaca; Puerta de Hierro University Hospital; Hospital Universitario La Fe; Hospital de Manises; Fundación de Investigación Biomédica - Hospital Universitario de La Princesa; Hospital General de Ciudad Real; Hospital Miguel Servet; Hospital Universitario Fundación Alcorcón; Hospital General Universitario de Alicante; Hospital Clínico Universitario de Valladolid; Hospital de Sant Pau; Hospital Juan Canalejo; Hospital General Regional de León; Complejo Hospitalario de Especialidades Juan Ramón Jimenez; Hospital Universitario de Valme; Hospital General Valencia; Hospital Dr. Negrín; Hospital de Galdakano
• Investigators: Study Director: Carlos Ferrando, MD, PhD, Hospital Clínico Universitario Valencia

Publications and helpful links

General Publications

• Futier E, Constantin JM, Paugam-Burtz C, Pascal J, Eurin M, Neuschwander A, Marret E, Beaussier M, Gutton C, Lefrant JY, Allaouchiche B, Verzilli D, Leone M, De Jong A, Bazin JE, Pereira B, Jaber S; IMPROVE Study Group. A trial of intraoperative low-tidal-volume ventilation in abdominal surgery. N Engl J Med. 2013 Aug 1;369(5):428-37. doi: 10.1056/NEJMoa1301082.
• Serpa Neto A, Cardoso SO, Manetta JA, Pereira VG, Esposito DC, Pasqualucci Mde O, Damasceno MC, Schultz MJ. Association between use of lung-protective ventilation with lower tidal volumes and clinical outcomes among patients without acute respiratory distress syndrome: a meta-analysis. JAMA. 2012 Oct 24;308(16):1651-9. doi: 10.1001/jama.2012.13730.
• Ferrando C, Librero J, Tusman G, Serpa-Neto A, Villar J, Belda FJ, Costa E, Amato MBP, Suarez-Sipmann F; iPROVE Network Group. Intraoperative open lung condition and postoperative pulmonary complications. A secondary analysis of iPROVE and iPROVE-O2 trials. Acta Anaesthesiol Scand. 2022 Jan;66(1):30-39. doi: 10.1111/aas.13979. Epub 2021 Sep 22.
• PROVE 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.
• Garutti I, Errando CL, Mazzinari G, Bellon JM, Diaz-Cambronero O, Ferrando C; iPROVE network. Spontaneous recovery of neuromuscular blockade is an independent risk factor for postoperative pulmonary complications after abdominal surgery: A secondary analysis. Eur J Anaesthesiol. 2020 Mar;37(3):203-211. doi: 10.1097/EJA.0000000000001128.
• Ferrando C, Soro M, Unzueta C, Suarez-Sipmann F, Canet J, Librero J, Pozo N, Peiro S, Llombart A, Leon I, India I, Aldecoa C, Diaz-Cambronero O, Pestana D, Redondo FJ, Garutti I, Balust J, Garcia JI, Ibanez M, Granell M, Rodriguez A, Gallego L, de la Matta M, Gonzalez R, Brunelli A, Garcia J, Rovira L, Barrios F, Torres V, Hernandez S, Gracia E, Gine M, Garcia M, Garcia N, Miguel L, Sanchez S, Pineiro P, Pujol R, Garcia-Del-Valle S, Valdivia J, Hernandez MJ, Padron O, Colas A, Puig J, Azparren G, Tusman G, Villar J, Belda J; Individualized PeRioperative Open-lung VEntilation (iPROVE) Network. Individualised perioperative open-lung approach versus standard protective ventilation in abdominal surgery (iPROVE): a randomised controlled trial. Lancet Respir Med. 2018 Mar;6(3):193-203. doi: 10.1016/S2213-2600(18)30024-9. Epub 2018 Jan 19.
• Ferrando C, Soro M, Canet J, Unzueta MC, Suarez F, Librero J, Peiro S, Llombart A, Delgado C, Leon I, Rovira L, Ramasco F, Granell M, Aldecoa C, Diaz O, Balust J, Garutti I, de la Matta M, Pensado A, Gonzalez R, Duran ME, Gallego L, Del Valle SG, Redondo FJ, Diaz P, Pestana D, Rodriguez A, Aguirre J, Garcia JM, Garcia J, Espinosa E, Charco P, Navarro J, Rodriguez C, Tusman G, Belda FJ; iPROVE investigators (Appendices 1 and 2). Rationale and study design for an individualized perioperative open lung ventilatory strategy (iPROVE): study protocol for a randomized controlled trial. Trials. 2015 Apr 27;16:193. doi: 10.1186/s13063-015-0694-1.

Study record dates

Study Major Dates

• Study Start: September 1, 2014
• Primary Completion (Actual): April 1, 2016
• Study Completion (Actual): April 1, 2016

Study Registration Dates

• First Submitted: June 5, 2014
• First Submitted That Met QC Criteria: June 5, 2014
• First Posted (Estimate): June 9, 2014

Study Record Updates

• Last Update Posted (Estimate): May 17, 2016
• Last Update Submitted That Met QC Criteria: May 14, 2016
• Last Verified: May 1, 2016

More Information

Terms related to this study

• Keywords: lung; ventilation; postoperative complications; lung complications; perioperative lung protective ventilation
• Additional Relevant MeSH Terms: Pathologic Processes; Postoperative Complications
• Other Study ID Numbers: iPROVE