What pacemakers do Americans and Europeans use, and besides Medtronic, St. Jude, Biotronik, what are the better brands?

There is also a Boston Scientific (formerly Guidant, later acquired by Poco) that is sold domestically.

Picking a brand, we recommend Medtronic or Poco, because these two are the difference between Mercedes-Benz and BMW in foreign countries, and the quality and technology are not comparable. Poco's pacemaker will last longer.