Study Stopped
No subjects enrolled
Individualized vs Low PEEP in One Lung Ventilation
The Effect of Individualized PEEP Compared to Low PEEP on Tissue Oxygenation During One Lung Ventilation in Obese Patients Undergoing Thoracic Surgery
1 other identifier
interventional
N/A
1 country
1
Brief Summary
The aim of the prospective crossover study is to investigate the effect of individualized positive end-expiratory pressure (PEEP) on measures of tissue oxygenation, compared with low PEEP.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
Started Aug 2018
Typical duration for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 2, 2018
CompletedFirst Posted
Study publicly available on registry
June 26, 2018
CompletedStudy Start
First participant enrolled
August 14, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 19, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
May 19, 2021
CompletedJuly 6, 2021
July 1, 2021
2.8 years
June 2, 2018
July 1, 2021
Conditions
Outcome Measures
Primary Outcomes (1)
Cerebral oximetry
Cerebral oximetry (a measure of oxygen levels in the brain) as measured by near-infrared spectroscopy (noninvasive monitor applied to the forehead)
Change from baseline cerebral oximetry at the end of each intraoperative 20 minute experimental period. All measurements are made during the 4-6 hour surgery.
Secondary Outcomes (5)
Arterial blood oxygen tension (PaO2)
Measured at baseline, and then at the end of each 20 minute intraoperative experimental period. All measurements are made during the 4-6 hour surgery.
Venous blood oxygen tension (PvO2)
Measured at baseline, and then at the end of each 20 minute intraoperative experimental period. All measurements are made during the 4-6 hour surgery.
Venous blood oxygen saturation (SvO2)
Measured at baseline, and then at the end of each 20 minute intraoperative experimental period. All measurements are made during the 4-6 hour surgery.
Cardiac output
Measured at baseline, and then at the end of each 20 minute intraoperative experimental period. All measurements are made during the 4-6 hour surgery.
Phenylephrine dose
Total dose of phenylephrine administered during each intraoperative 20 minute experimental period. All measurements are made during the 4-6 hour surgery.
Study Arms (2)
Individualized PEEP
EXPERIMENTALIndividualized PEEP will be identified by performing a decremental PEEP protocol which will determine the level of PEEP that correlates with maximal lung compliance in each subject. Subjects will receive one-lung ventilation with individualized PEEP
Low PEEP
ACTIVE COMPARATORSubjects will receive One-lung ventilation with low PEEP (5 cmH2O)
Interventions
During one-lung ventilation for lung resection surgery, PEEP will be applied. After a subject's individualized PEEP (PEEP that corresponds to maximum lung compliance) is determined, the subject will receive one-lung ventilation with individualized PEEP.
Subjects will receive one-lung ventilation with low PEEP (5 cmH2O)
Eligibility Criteria
You may qualify if:
- Subject undergoing elective pulmonary lobectomy requiring one-lung ventilation
- Body-mass index ≥ 30 kg/m2
- Age ≥ 18 years and ≤ 80 years
You may not qualify if:
- Age ≤ 18 year or ≥ 80 years
- Moderate or severe cardiac valvular disease
- Left ventricular ejection fraction \< 30%
- Moderate or severe right ventricular systolic dysfunction
- Severe pulmonary hypertension
- Presence of pulmonary bullae or blebs on preoperative chest imaging studies (e.g., radiograph, computed tomograph)
- Emergency surgery
- Previous history of lung surgery on the non-operative lung
- Pregnancy
- Incarceration
- Mental incapacitation
- Patient refusal
- Non-English speaking
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Dionne Peacherlead
Study Sites (1)
University of Iowa Hospitals and Clinics
Iowa City, Iowa, 52242, United States
Related Publications (6)
Campos JH, Feider A. Hypoxia During One-Lung Ventilation-A Review and Update. J Cardiothorac Vasc Anesth. 2018 Oct;32(5):2330-2338. doi: 10.1053/j.jvca.2017.12.026. Epub 2017 Dec 19. No abstract available.
PMID: 29361458BACKGROUNDKarzai W, Schwarzkopf K. Hypoxemia during one-lung ventilation: prediction, prevention, and treatment. Anesthesiology. 2009 Jun;110(6):1402-11. doi: 10.1097/ALN.0b013e31819fb15d.
PMID: 19417615BACKGROUNDFerrando C, Mugarra A, Gutierrez A, Carbonell JA, Garcia M, Soro M, Tusman G, Belda FJ. Setting individualized positive end-expiratory pressure level with a positive end-expiratory pressure decrement trial after a recruitment maneuver improves oxygenation and lung mechanics during one-lung ventilation. Anesth Analg. 2014 Mar;118(3):657-65. doi: 10.1213/ANE.0000000000000105.
PMID: 24557111BACKGROUNDde Matos GF, Stanzani F, Passos RH, Fontana MF, Albaladejo R, Caserta RE, Santos DC, Borges JB, Amato MB, Barbas CS. How large is the lung recruitability in early acute respiratory distress syndrome: a prospective case series of patients monitored by computed tomography. Crit Care. 2012 Jan 8;16(1):R4. doi: 10.1186/cc10602.
PMID: 22226331BACKGROUNDBorges JB, Okamoto VN, Matos GF, Caramez MP, Arantes PR, Barros F, Souza CE, Victorino JA, Kacmarek RM, Barbas CS, Carvalho CR, Amato MB. Reversibility of lung collapse and hypoxemia in early acute respiratory distress syndrome. Am J Respir Crit Care Med. 2006 Aug 1;174(3):268-78. doi: 10.1164/rccm.200506-976OC. Epub 2006 May 11.
PMID: 16690982BACKGROUNDWriting Group for the Alveolar Recruitment for Acute Respiratory Distress Syndrome Trial (ART) Investigators; Cavalcanti AB, Suzumura EA, Laranjeira LN, Paisani DM, Damiani LP, Guimaraes HP, Romano ER, Regenga MM, Taniguchi LNT, Teixeira C, Pinheiro de Oliveira R, Machado FR, Diaz-Quijano FA, Filho MSA, Maia IS, Caser EB, Filho WO, Borges MC, Martins PA, Matsui M, Ospina-Tascon GA, Giancursi TS, Giraldo-Ramirez ND, Vieira SRR, Assef MDGPL, Hasan MS, Szczeklik W, Rios F, Amato MBP, Berwanger O, Ribeiro de Carvalho CR. Effect of Lung Recruitment and Titrated Positive End-Expiratory Pressure (PEEP) vs Low PEEP on Mortality in Patients With Acute Respiratory Distress Syndrome: A Randomized Clinical Trial. JAMA. 2017 Oct 10;318(14):1335-1345. doi: 10.1001/jama.2017.14171.
PMID: 28973363BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Dionne Peacher, MD
University of Iowa
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Clinical Assistant Professor
Study Record Dates
First Submitted
June 2, 2018
First Posted
June 26, 2018
Study Start
August 14, 2018
Primary Completion
May 19, 2021
Study Completion
May 19, 2021
Last Updated
July 6, 2021
Record last verified: 2021-07
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
- Time Frame
- IPD will be available for sharing immediately after publication and ending 5 years following article publication.
- Access Criteria
- IPD will be accessible to researchers who provide a methodologically sound proposal, to achieve aims in the approved proposal
All of the individual participant data collected during the trial, after deidentification will be shared with researchers who provide a methodologically sound proposal, to achieve aims in the approved proposal. IPD will be available for sharing immediately after publication and ending 5 years following article publication.