Dr. Paul Saunders, a cardiothoracic surgeon, says he recently battled COVID-19 but has now stepped back onto the front lines to help fight the novel coronavirus. Dr. Saunders is also the Director of the ECMO program at Maimonides Medical Center, a procedure that can save the lives of critical ill patients.

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“It takes the blood out of a patient and runs it through an oxygenator to add in oxygen, take out carbon dioxide. It’s used for people who are suffering from profound respiratory failure, or lung failure, or cardiac failure,” Dr. Saunders explains to Dr. Phil on Wednesday’s episode.

In the video above, hear how ECMO has been used in the fight against COVID-19.

WATCH: Doctor Explains Potential Treatment For COVID-19, How Long Until It Could Be Administered
On Wednesday, Dr. Phil takes an inside look at the intense search for treatments and a cure for COVID-19. Plus, hear from people who are battling problems Americans are facing that aren't health related -- but are also dire. Check here to see where you can watch.