The sinoatrial node is "part of the heart, but a very specialized part of the heart," Mark Anderson told BioWorld Today. The cells that make up the pacemaker are different from normal cells, he ...

Heart problems are nothing new. Humans have been fascinated by electrocardiography since the era of Hippocrates (via St. Luke's Hospital Cardiology Department). With each passing century, medicine's ...

DEAR DR. ROACH: Do people with pacemakers need to be concerned about wireless devices? -- B.L. ANSWER: In most cases, there is very little risk to a pacemaker from wireless devices. However, there are ...

The first unexpected power failure in a Medtronic InSync III pacemaker didn't set off the alarm bells. But by the fourth time, doctors at the Minneapolis Heart Institute knew they had to act quickly.