Method for establishing defibrillation threshold for a cardiac d

Details Method for establishing defibrillation threshold for a cardiac d Method for establishing defibrillation threshold for a cardiac d

1992-11-10

1994-09-13

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

A61N 139

Patent

active

053465067

ABSTRACT:
A method of determining a defibrillation threshold for an implantable cardiac defibrillator, based upon determining the 50% probability of reaching the upper limit of vulnerability. The 50% probability of reaching the upper limit of vulnerability at the mid-upslope of the T-wave is found to closely approximate the 50% probability of successful defibrillation used to set the shock energy level of the defibrillator. A delayed up-down algorithm is used to determine the shock strength associated with 50% probability of reaching the upper limit of vulnerability.

REFERENCES:
patent: 5105809 (1992-04-01), Bach, Jr. et al.

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