Automated programmable stimulating device to optimize pacing par

Details Automated programmable stimulating device to optimize pacing par Automated programmable stimulating device to optimize pacing par

1994-11-15

1996-01-30

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

607 23, 607 22, A61N 1365

Patent

active

054877520

ABSTRACT:
A method and apparatus for automatically optimizing a cardiac performance parameter of the heart, such as its cardiac output mean arterial pressure pO.sub.2 or pCO.sub.2. The performance parameter is optimized by periodically pacing the heart for a short period of time with stimulating pulses having a modified pacing parameter value. The intrinsic operation of the heart is monitored a majority of the time and establishes a baseline value for the cardiac performance parameter. The heart is then paced with the modified pacing parameter value during an interval that is approximately a 1:4 ratio with respect to the baseline monitoring interval. The method of the present invention can be achieved using a totally implanted pacemaker, an implanted pulse generator in combination with external equipment communicating with the pacemaker via telemetry, or by using equipment located external the patient.

REFERENCES:
patent: 4303075 (1981-12-01), Heilman et al.
patent: 5024222 (1991-06-01), Thacker
H. Kataoka, "Hemodynamic Effect of Physiological Dual-Chamber Pacing in a Patient with End-Stage Dilated Cardiomyopathy: A Case Report", PACE 14:1330-1335 (Sep. 1991).

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