About this trial
The goal of this study is to assess the clinical feasibility of a novel, reusable, low cost gas analyzer that detects breath in chest drains in order to diagnose and heal air leaks. The investigators have developed prototype gas analyzers that attach to the outlet of any analog chest drain, and can be connected temporarily to the sampling port. They detect breath by measuring CO2, O2, and pressure, in order to supplement the information provided by the bubbles in the water seal.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Patients who are scheduled for thoracic surgery and expected to have chest tube placed
For patients who are unable to sign consent, but meet all of the inclusion criteria and none of the
Disqualifiers
Patients that provide informed consent for the study
Patients >18 years old
Patients with hemodynamic instability
Pregnant patients
Trial design
Single group
Treatments tested in this trial
Pleural gas analysis
DevicePatients enrolled in this study will undergo both VI and pleural gas analysis to assess for air leak following surgical chest tube placement. For pleural gas analysis, an outlet gas analyzer will be kept on the outlet port of the chest drain for the entire duration of time that a chest tube is in place. We plan to collect both continuous data, looking for intermittent spikes and gas changes, along with episodic data collected during specific air leak assessments. The gas analyzer may better be able to measure an air leak during these specific procedures conducted twice per day, but it will also be used at the outlet port of the chest drain the rest of the time to continuously check for an air leak throughout the hospital stay.
Treatment groups
Trial outcomes
Primary outcomes
Accuracy alone
Whether gas analysis can accurately assess for air leak
Secondary outcomes
Using VI as well
Comparison of accuracy in air leak assessment between gas analysis and visual inspection
Sponsors and contacts
Click on the lead sponsor to view all of their trials.