Following surgery, many patients require hemodynamic monitoring to measure for cardiac output and stroke volume. This is typically done with pulmonary artery catheter, however for patients who are quite weak after surgery, this life-saving monitoring may be too invasive. An alternative device from Edwards Lifesciences has just received FDA approval and may be the best option for frail patients. The device, known as Clearsight, allows for all aspects of hemodynamic monitoring to be done with just two non-invasive finger cuffs. The device has previously been used to measure the blood pressure of astronauts in orbit, and the developers are hopeful that it will now become an ICU staple for post-surgical patients.