04577634 is referenced by 56 patents and cites 20 patents.

An improved dual chamber cardiac pacing apparatus detects retrograde P-waves conduction by either determining polarity of the P-wave at a location in the right atrium adjacent the A-V node; or the sequence of signals which appear at this predetermined location and at a second predetermined location in the atrium in proximity to the sinus node. The pacing apparatus will ignore retrograde P-waves when initiating sequential pacing in the ventricle. In addition, the pacing apparatus will provide a burst of high rate atrial pacing pulses upon detection of the simultaneous occurrence of retrograde P-wave conduction, high rate heart beat and narrow QRS complexes.

Title
Method and apparatus for alleviating paroxysmal atrail tachycardia
Application Number
554179
Publication Number
4577634
Application Date
July 2, 1985
Publication Date
March 25, 1986
Inventor
Lawrence J Gessman
1929 W. Point Ct., Cherry Hill, 08003
NJ, US
Agent
Benasutti and Murray
IPC
A61N 1/36
View Original Source