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Completed

NCT Number: NCT00538161

Effect of Low Tidal Volume Ventilation in Improving Oxygenation and Thus Reducing Acute Lung Injury in the Cardiac Surgical Patient

We propose that as low tidal volume ventilation has proven to be beneficial in patients with established ARDS it may have a role in preventing the onset of acute lung injury in the cardiac surgical population. Institution of low tidal volume ventilation in the operating room may reduce the release of the cytokines and interleukins that have been known to contribute to the development of acute lung injury. In this study, we propose that the institution of low tidal volume ventilation in the operating room will reduce the incidence of acute lung injury. Measurement of PaO2 to FiO2 ratio twenty four and forty eight hours post operatively will help determine if there is a difference in oxygenation between the two groups. Chest X-ray findings, time to extubation and length of ICU stay will also determine if there is a role for low tidal volume ventilation in the operating room. We will also attempt to establish a causative mechanism by measuring plasma levels of cytokines known to be associated with the development of ARDS.

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Key information

Conditions

Acute Respiratory Distress Syndrome Acute Lung Injury Lung Diseases Lung Injury Respiration Disorders Respiratory Distress Syndrome Respiratory Tract Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Beth Israel Deaconess Medical Center

Boston, Massachusetts, 02215, United States

About this study

Methods- A single center randomized controlled trial was undertaken in 149 patients comparing ventilation with 6 ml/kg TV to ventilation with 10 ml/kg TV in patients undergoing elective cardiac surgery. Study ventilator settings were applied immediately after induction of anesthesia and continued throughout surgery and the subsequent Intensive Care Unit stay. The primary endpoint of the study was time to extubation. Secondary endpoints included the proportion of patients extubated at 6 hours, indices of lung mechanics and gas exchange as well as patient clinical outcomes.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients coming in for cardiac surgical procedures will be recruited into the study.
  • Both men and women will be recruited into the study.
  • All patients over the age of 18 will be recruited into the study.
  • Discussion between the surgeon and the primary investigator will happen prior to approaching the patient to obtain informed consent.

Exclusion criteria

  • Patients with preexisting respiratory failure and active infection will be excluded from the study.
  • Patients undergoing one lung ventilation during surgery will be excluded from the study.
  • Patients undergoing emergency cardiac surgery will be excluded from the study.

Treatment and study plan

Ventilation strategy

Other

Primary outcomes

  1. Time to extubation

    Time frame: the time patient was extubated in the ICU

Secondary outcomes

  1. Oxygenation at 4 hours, 8 hours, 12 hours and 24 hours post surgery.

    Time frame: measurement of blood gas at 4, 8 , 12 and 24 hours post surgery

Sponsors and collaborators

Lead sponsor

Beth Israel Deaconess Medical Center

Other

Registry information

Important dates

Study start
2007
Primary completion
2009
Study completion
2011
First posted
Oct 2, 2007
Registry last updated
Mar 17, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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