Medtronic Inc said on Monday it agreed with research findings that favored the medical device maker's Sprint Quattro heart defibrillator lead over a rival product by St Jude Medical Inc. St Jude on Friday urged medical journal HeartRhythm to retract an article on the research written by Dr. Robert Hauser of the Minneapolis Heart Institute Foundation. Hauser had analyzed data on lead failures and death rates for St Jude's Riata and Riata ST defibrillator leads - which were discontinued in December 2010 because of insulation problems - and Medtronic's Quattro leads.
