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Continued: Medtronic's itty-bitty pacemaker is implanted directly inside the heart

  • Article by: JAMES WALSH
  • Last update: December 9, 2013 - 10:07 PM

Mackin said Medtronic’s device is about 30 percent smaller than the Nanostim pacemaker.

Leads are considered the weak link of pacemaker and defibrillator therapy, with the thin wires fracturing or disconnecting over time. Medtronic and St. Jude have had problems with leads, with St. Jude’s Riata lead being the most recent to be pulled from the market, after it was discovered that inner wires were coming through the outer insulation.

The Micra study will enroll up to 780 patients at about 50 centers globally. Mackin said the trial will truly be comprehensive and international in scope, with patients being implanted with the device in 17 countries, including China, the Czech Republic, France, India, Malaysia, Japan, Russia and the United Kingdom. Medtronic hopes to enroll U.S. patients in the trial in 2014. Initial results from the first 60 patients, followed up to three months, are expected in the second half of 2014.

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  • MINNESOTA TOPICS: Medtronic

    Find the latest news and information about Medtronic.

  • Medtronic on Monday announced the first in-human implant of the world’s smallest pacemaker, a vitamin-sized device that is implanted directly inside the heart.

  • Medtronic's Fridley headquarters.

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