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US 8,509,892 B2Granted
Method and apparatus for controlling anti-tachyarrhythmia therapy using hemodynamic tolerability
AssigneeCardiac Pacemakers, Inc.
InventorsAllan C. Shuros, Dan Li
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Abstract
A cardiac rhythm management system identifies a relationship between one or more hemodynamic parameters sensed from a patient and levels of hemodynamic tolerability of the patient. The identified relationship allows an implantable medical device to control delivery of anti-tachyarrhythmia therapy using the patient's hemodynamic tolerability during a detected tachyarrhythmia episode, in addition to classifying the detected tachyarrhythmia episode by its type and origin.
Claims24
A cardiac rhythm management system, comprising:
- a hemodynamic tolerability analyzer including:
- a hemodynamic parameter input configured to receive values of one or more hemodynamic parameters including values of the one or more hemodynamic parameters sensed during delivery of pacing pulses according to a hemodynamic challenge protocol, the hemodynamic challenge protocol specifying an incrementally increasing pacing rate such that the pacing pulses arc delivered to induce increasingly severe tachyarrhythmia;
- an annotation input configured to receive annotations associating the values of the one or more hemodynamic parameters to levels of hemodynamic tolerability each being a measure of tolerance to deteriorated hemodynamic performance resulting from tachyarrhythmia;
- and
- a hemodynamic tolerability map generator configured to generate a hemodynamic tolerability map relating at least the values of the one or more hemodynamic parameters to the levels of hemodynamic tolerability;
- and
- a control circuit configured to control the delivery of pacing pulses by executing the hemodynamic challenge protocol.
4 more elements
Dependencies are inferred from the claim text.