The Cardiac Stress and Electrocardiographic Changes Caused by Lung Cancer Surgery

This study is monitoring heart stress and changes in heart rhythm (via ECG, an electrical heart tracing) in patients undergoing minimally invasive lung cancer surgery. Researchers want to understand how surgery affects the heart so they can improve patient safety. **You may be eligible if...** - You are an adult patient scheduled for elective lung cancer surgery with curative intent - You are planned for minimally invasive (keyhole) surgery - You are willing to participate in the study **You may NOT be eligible if...** - You are already enrolled in another clinical trial - You have a history of atrial fibrillation or atrial flutter - You have a cardiac pacemaker - You have had prior heart conduction problems (bundle branch blocks) - You have had prior cardiac ablation procedures - You have had previous chest or heart surgery - Your surgery is expected to require open (not minimally invasive) surgery or removal of part of the chest wall Talk to your doctor to see if this trial is right for you.