The U.S. FDA recently granted Medtronic plc approval for its deep brain stimulation (DBS) system to be used to treat Parkinson’s disease or essential tremor while a patient is asleep, under general anesthesia. The approval gives patients another option for DBS therapy which can transform their quality of life, Amaza Reitmeier, vice president and general manager for Medtronic brain modulation, told BioWorld in an interview.