Association Between Tidal Volume and Mortality in Pressure Support in Adults Under Invasive Mechanical Ventilation

Respiration, Artificial Clinical Trial

— SAFE-VT  

Official title:

Impact of Tidal Volume Magnitude in Pressure Support Mode on Mortality in Adults Under Invasive Mechanical Ventilation. Multi-center Retrospective Cohort Study.

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT06195475
• Other study ID #: Sanatorio Anchorena San Martín
• Status: Recruiting
• Start date: November 30, 2023
• Est. completion date: October 15, 2024

Study information

• Verified date: January 2024
• Source: Sanatorio Anchorena San Martin
• Contact: javier h dorado, lic
• Phone: 5491141644262
• Email: javierhdorado[@]gmail.com
• Is FDA regulated: No
• Study type: Observational [Patient Registry]

Clinical Trial Summary

The goal of this Multicenter retrospective cohort study is to assessing the association between the development of a tidal volume magnitude > 8 ml/kg of predicted body weight during the first transition to partial support phase in pressure support mode and mortality in the intensive care unit in a general population of patients older than 18 years who require invasive mechanical ventilation, in contrast to individuals who develop tidal volume ≤ 8 ml/kg of predicted body weight. Secondarily, assess the association between elevated VT (tidal volume) during the initiation of the partial support phase in pressure support mode and ventilator-free days, failure in transitioning to spontaneous ventilation, and success in weaning from mechanical ventilation.

The main question it aims to answer are:

• Does exposure to tidal volumes greater than 8 ml/kg of predicted body weight during the first 48 hours of pressure support mode mechanical ventilation increase the risk of death in the intensive care unit compared to those who develop a tidal volume equal to or less than 8 ml/kg of predicted body weight in subjects older than 18 years requiring invasive mechanical ventilation?

The clinical investigation aims to determine whether exposure to tidal volumes greater than 8 ml/kg of predicted body weight during the initial 48 hours of pressure support mode mechanical ventilation is associated with an increased risk of mortality in the intensive care unit when compared to individuals who maintain a tidal volume equal to or less than 8 ml/kg of predicted body weight. This analysis involves subjects aged 18 years and older who require invasive mechanical ventilation

Description:

The data of patients from each participating center in the study will be encoded to maintain their anonymity. These center-related data will only be known to the study's Principal Investigator (PI), who will be the sole individual with access to them. Under no circumstances will the centers be able to make comparisons among themselves.

The data collected by each participating unit will be gathered by the investigator or by one of the designated team members assigned to the study, and entered into a REDCap® form specifically designed for this study.

The data collected by each investigator will be randomly supervised by the coordinating group to ensure the quality of the collected data and to detect possible errors in data acquisition. The study's coordinating group will also monitor the daily incorporation of data into the database to supervise and detect, as a double filter, the possibility of errors in data editing and incorporation, thus ensuring the quality and reliability of the information obtained throughout the entire period of patient inclusion.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 2549
• Est. completion date: October 15, 2024
• Est. primary completion date: April 15, 2024
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Patients aged 18 and older admitted to the participating ICUs from January 1, 2019, to April 30, 2023, with a requirement for mechanical ventilation (MV) for any reason for at least 72 hours within the same cycle, who have at least one monitoring session in PC-CSV (pressure support ventilation), and who remain on MV (regardless of the mode) for a period of = 1 calendar day after that monitoring session will be included

Exclusion Criteria:

• Patients who have not initiated the partial support phase in PC-CSV mode or who are extubated within a period of less than 24 hours from the first ventilatory monitoring in PC-CSV will be excluded. Subjects with missing data in exposure and/or outcome variables will also be excluded.

Related Conditions & MeSH terms

• Respiration, Artificial

Intervention

Other:
• high vs low tidal volume
The clinical investigation aims to determine whether exposure to tidal volumes greater than 8 ml/kg of predicted body weight during the initial 72 hours of pressure support mode mechanical ventilation is associated with an increased risk of mortality in the intensive care unit when compared to individuals who maintain a tidal volume equal to or less than 8 ml/kg of predicted body weight.

Locations

Country	Name	City	State
Argentina	Sanatorio Anchorena San Martín	Buenos Aires

Sponsors (3)

Lead Sponsor	Collaborator
Sanatorio Anchorena San Martin	Javier Hernán Dorado, Joaquin Perez

Country where clinical trial is conducted

Argentina, 

References & Publications (17)

Abrams D, Montesi SB, Moore SKL, Manson DK, Klipper KM, Case MA, Brodie D, Beitler JR. Powering Bias and Clinically Important Treatment Effects in Randomized Trials of Critical Illness. Crit Care Med. 2020 Dec;48(12):1710-1719. doi: 10.1097/CCM.0000000000 — View Citation

Acute Respiratory Distress Syndrome Network; Brower RG, Matthay MA, Morris A, Schoenfeld D, Thompson BT, Wheeler A. Ventilation with lower tidal volumes as compared with traditional tidal volumes for acute lung injury and the acute respiratory distress sy — View Citation

Bellani G, Grassi A, Sosio S, Gatti S, Kavanagh BP, Pesenti A, Foti G. Driving Pressure Is Associated with Outcome during Assisted Ventilation in Acute Respiratory Distress Syndrome. Anesthesiology. 2019 Sep;131(3):594-604. doi: 10.1097/ALN.00000000000028 — View Citation

Esteban A, Frutos-Vivar F, Muriel A, Ferguson ND, Penuelas O, Abraira V, Raymondos K, Rios F, Nin N, Apezteguia C, Violi DA, Thille AW, Brochard L, Gonzalez M, Villagomez AJ, Hurtado J, Davies AR, Du B, Maggiore SM, Pelosi P, Soto L, Tomicic V, D'Empaire — View Citation

Gajic O, Dara SI, Mendez JL, Adesanya AO, Festic E, Caples SM, Rana R, St Sauver JL, Lymp JF, Afessa B, Hubmayr RD. Ventilator-associated lung injury in patients without acute lung injury at the onset of mechanical ventilation. Crit Care Med. 2004 Sep;32( — View Citation

Girard TD, Kress JP, Fuchs BD, Thomason JW, Schweickert WD, Pun BT, Taichman DB, Dunn JG, Pohlman AS, Kinniry PA, Jackson JC, Canonico AE, Light RW, Shintani AK, Thompson JL, Gordon SM, Hall JB, Dittus RS, Bernard GR, Ely EW. Efficacy and safety of a pair — View Citation

Henzler D, Schmidt A, Xu Z, Ismaiel N, Zhang H, Slutsky AS, Pelosi P. Increased effort during partial ventilatory support is not associated with lung damage in experimental acute lung injury. Intensive Care Med Exp. 2019 Nov 5;7(1):60. doi: 10.1186/s40635 — View Citation

Hubmayr RD, Kallet RH. Understanding Pulmonary Stress-Strain Relationships in Severe ARDS and Its Implications for Designing a Safer Approach to Setting the Ventilator. Respir Care. 2018 Feb;63(2):219-226. doi: 10.4187/respcare.05900. — View Citation

Kress JP, Pohlman AS, O'Connor MF, Hall JB. Daily interruption of sedative infusions in critically ill patients undergoing mechanical ventilation. N Engl J Med. 2000 May 18;342(20):1471-7. doi: 10.1056/NEJM200005183422002. — View Citation

Litell JM, Gong MN, Talmor D, Gajic O. Acute lung injury: prevention may be the best medicine. Respir Care. 2011 Oct;56(10):1546-54. doi: 10.4187/respcare.01361. Erratum In: Respir Care. 2012 Feb;57(2):334. — View Citation

Murias G, Lucangelo U, Blanch L. Patient-ventilator asynchrony. Curr Opin Crit Care. 2016 Feb;22(1):53-9. doi: 10.1097/MCC.0000000000000270. — View Citation

Perez J, Dorado JH, Papazian AC, Berastegui M, Gilgado DI, Cardoso GP, Cesio C, Accoce M. Titration and characteristics of pressure-support ventilation use in Argentina: an online cross-sectional survey study. Rev Bras Ter Intensiva. 2020 Mar;32(1):81-91. — View Citation

Pinto EF, Santos RS, Antunes MA, Maia LA, Padilha GA, de A Machado J, Carvalho ACF, Fernandes MVS, Capelozzi VL, de Abreu MG, Pelosi P, Rocco PRM, Silva PL. Static and Dynamic Transpulmonary Driving Pressures Affect Lung and Diaphragm Injury during Pressu — View Citation

Plotnikow GA, Gogniat E, Accoce M, Navarro E, Dorado JH; EpVAr study group. Epidemiology of mechanical ventilation in Argentina. The EpVAr multicenter observational study. Med Intensiva (Engl Ed). 2022 Jul;46(7):372-382. doi: 10.1016/j.medine.2022.05.002. — View Citation

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 dist — View Citation

van Haren F, Pham T, Brochard L, Bellani G, Laffey J, Dres M, Fan E, Goligher EC, Heunks L, Lynch J, Wrigge H, McAuley D; Large observational study to UNderstand the Global impact of Severe Acute respiratory FailurE (LUNG SAFE) Investigators. Spontaneous — View Citation

Yoshida T, Fujino Y, Amato MB, Kavanagh BP. Fifty Years of Research in ARDS. Spontaneous Breathing during Mechanical Ventilation. Risks, Mechanisms, and Management. Am J Respir Crit Care Med. 2017 Apr 15;195(8):985-992. doi: 10.1164/rccm.201604-0748CP. — View Citation

* Note: There are 17 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	mortality in intensive care unit	Categorical dichotomous variable (yes/no). All patients who are discharged from the intensive care unit (ICU), regardless of their destination (another area within the institution or another healthcare facility of any kind), will be considered as alive at ICU discharge.	day 28
Secondary	Failure in transitioning to spontaneous ventilation	Categorical dichotomous variable (yes/no). It will be considered a failure in transitioning to spontaneous ventilation for any subject who, after having at least one monitoring session in PC-CSV mode, has at least one monitoring session in mandatory modes (VC-CMV and/or PC-CMV) within the following 72 hours.	72 hours
Secondary	Ventilator-free days	Discrete quantitative variable. To count each day of mechanical ventilation (MV), daily programming and respiratory mechanics monitoring will be used; considering one monitoring session as one day of MV. To obtain the final variable, the following equation will be used: 28 - days of invasive MV, resulting in a possible data range from 0 to 26 ventilator-free days.	28 days
Secondary	ICU length of stay	Discrete quantitative variable. It will be obtained using the following equation: (Date of ICU discharge) - (Date of ICU admission). Only the number of days of hospitalization will be required for the analysis.	28 days

External Links

•   Mark Stevenson, Evan Sergeant with contributions from Telmo Nunes, Cord Heuer, Jonathon Marshall, Javier Sanchez, Ron Thornton, Jeno Reiczigel, Jim Robison-Cox, Paola Sebastiani, Peter Solymos, Kazuki Yoshida, Geoff Jones, Sarah Pirika