Extra-cardiac impedance based hemodynamic assessment method...

Details Extra-cardiac impedance based hemodynamic assessment method... Extra-cardiac impedance based hemodynamic assessment method...

2011-04-12

2011-04-12

Manuel, George (Department: 3762)

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

Reexamination Certificate

active

07925348

ABSTRACT:
A medical device is provided that comprises a lead assembly configured to be at least partially located proximate to the heart. The lead assembly includes an extra-cardiac (EC) electrode to be positioned proximate to at least one of a superior vena cava (SVC) and a left ventricle (LV) of a heart. The lead assembly includes a subcutaneous remote-cardiac (RC) electrode configured to be located remote from the heart such that at least a portion of the greater vessels are interposed between the RC electrode and the EC electrode to establish an extra-cardiac impedance (ECI) vector. The processor module measures extra-cardiac impedance along the ECI vector to obtain ECI measurements. The processor module assesses a hemodynamic performance based on the ECI measurements.

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