The purpose of this study is to better understand how air is spread throughout study
participants' lungs after abdominal surgery by comparing two lung inflation treatments:
1. Incentive Spirometry (I.S.) lung expansion therapy
2. EzPAP® lung expansion therapy.
Lung expansion therapy is routinely used after upper abdominal surgery. Taking deep breaths
after surgery helps lungs to stay inflated. At the University of Virginia, it is at the
physician's discretion as to which treatment will be used to help with deep breathing lung
inflation therapy after surgery. The investigators would like to know which of the lung
inflation therapies is better at helping inflate participants' lungs.
The investigators will be using a device called Electrical Impedance Tomography (EIT) to
measure how effectively air spreads in participants' lungs. This device is not currently
approved by the Food and Drug Administration (FDA) for the purpose used in this study, and
therefore, it is considered investigational.
Investigators are inviting eligible participants to consider participating in this study
because doctors order Incentive Spirometry as a standard of care following upper abdominal
surgery. Information gained from monitoring how air is spread throughout participants' lungs
will help investigators to determine if there is a clinical difference and benefit when
comparing Incentive Spirometry and EzPAP lung expansion therapies.