| US 7,580,747 B1 | ||
| Inducing premature atrial contractions for the purpose of monitoring autonomic tone, risk of sudden cardiac death and ischemic events | ||
| Taraneh Ghaffari Farazi, San Jose, Calif. (US); and Eric Falkenberg, Simi Valley, Calif. (US) | ||
| Assigned to Pacesetter, Inc., Sunnyvale, Calif. (US) | ||
| Filed on Jul. 13, 2005, as Appl. No. 11/181,719. | ||
| Int. Cl. A61N 1/362 (2006.01); A61B 5/0452 (2006.01) | ||
| U.S. Cl. 607—25 [600/519] | 12 Claims |
| 1. An implantable system for performing a cardiac assessment, comprising:
means for inducing premature atrial contractions (PACs) to thereby cause corresponding premature contractions in the ventricles;
means for monitoring short-term fluctuations in cardiac intervals that follow the premature contractions in the ventricles
caused by the induced PACs;
means for performing a cardiac assessment based on the monitored fluctuations in cardiac intervals that follow the premature
contraction in the ventricles caused by the induced PAC;
wherein the means for performing detects myocardial ischemic events based on the monitored fluctuations in cardiac intervals
that follow the premature contractions in the ventricles caused by the induced PACs; and
means for determining an ischemic burden based on the detected myocardial ischemic events.
|