Noninvasive calibration of cardiac pressure transducers in patients with heart failure: an aid to implantable hemodynamic monitoring and therapeutic guidance
D Mcclean, J Aragon, A Jamali, S Kar… - Journal of cardiac …, 2006 - Elsevier
BACKGROUND: Implantable cardiac pressure monitors require assurance of calibration.
This study evaluated if airway pressure responses during Valsalva maneuver (VM) can be
used for calibrating intracardiac pressure transducers. METHODS AND RESULTS: Thirty-
eight heart failure patients performed VMs while cardiac and airway pressures were
recorded. Patients were designated as Lower (L) if baseline PCW was< 20 mm Hg (n= 17);
otherwise, they were categorized as Higher (H)(n= 21). VMs were repeated in 9 H patients …
This study evaluated if airway pressure responses during Valsalva maneuver (VM) can be
used for calibrating intracardiac pressure transducers. METHODS AND RESULTS: Thirty-
eight heart failure patients performed VMs while cardiac and airway pressures were
recorded. Patients were designated as Lower (L) if baseline PCW was< 20 mm Hg (n= 17);
otherwise, they were categorized as Higher (H)(n= 21). VMs were repeated in 9 H patients …
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