Surgery – Truss – Pad
Patent
1990-09-26
1991-12-24
Kamm, William E.
Surgery
Truss
Pad
128419PT, A61N 137
Patent
active
050743082
ABSTRACT:
A pacemaker mediated tachycardia (PMT) is detected by circuitry within an implantable pacemaker. The PMT is detected by first detecting a tachycardia condition that includes a prescribed number of consecutive cardiac cycles having a rate faster than a prescribed rate. Each cardiac cycle of the tachycardia condition includes a natural atrial event, i.e., a P-wave, and a paced ventricular event, i.e., a V-pulse generated by a pacemaker. After the prescribed number of such cardiac cycles, e.g., two to ten, a P-V delay in a single cardiac cycle is modified by a first prescribed amount, e.g., 50 milliseconds. The time interval of a V-P interval associated with at least one cardiac cycle preceding the modified P-V delay is then compared to a V-P interval immediately following the modified P-V delay. Only if the difference between the V-P intervals thus measured is less than a second prescribed amount, e.g., 25 milliseconds, is a PMT indicated. If a PMT is indicated, a PMT termination regimen, e.g., extending PVARP, is automatically invoked by the pacemaker for a prescribed number of cardiac cycles, such as one or two cardiac cycles.
REFERENCES:
patent: 4539991 (1985-09-01), Boute et al.
patent: 4554920 (1985-11-01), Baker, Jr. et al.
patent: 4554921 (1985-11-01), Boute et al.
patent: 4569350 (1986-02-01), Mumford et al.
patent: 4624260 (1986-11-01), Baker, Jr. et al.
patent: 4712555 (1987-12-01), Thornander et al.
patent: 4712556 (1987-12-01), Baker, Jr.
patent: 4788980 (1988-12-01), Mann et al.
patent: 4860749 (1989-08-01), Lehmann
patent: 4944298 (1990-07-01), Sholder
Chorus 6003-6033 Implantable Dual-Chamber Pulse Generator DDD MO Physician's Manual, Published by ELA Medical, Inc. Minnetonka, MN (19).
Buchanan Stuart W.
Mann Brian M.
Sholder Jason A.
Gold Bryant R.
Kamm William E.
Miller Leslie S.
Siemens-Pacesetter, Inc.
Weinberg Lisa P.
LandOfFree
System and method for recognizing pacemaker-mediated tachycardia does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for recognizing pacemaker-mediated tachycardia, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for recognizing pacemaker-mediated tachycardia will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-38270