Using Radial Artery Tonometry to Optimize Biventricular Pacemakers
Author Information
Author(s): Taha Nima, Zhang Jing, Rafie Reza, Ranjan Rupesh, Qamruddin Salima, Naqvi Tasneem Z
Primary Institution: Keck School of Medicine, University of Southern California
Hypothesis
PEP by radial artery tonometry may correspond with ET and VTI by echo and may be used during Biv pacemaker optimization.
Conclusion
An acute shortening of PEP by radial artery tonometry occurs post Biv pacemaker optimization and correlates with improvement in hemodynamics by echo Doppler.
Supporting Evidence
- Significant improvement post optimization was achieved in LV ET, LV VTI, and MPI.
- The correlation between echo Doppler and radial artery tonometry-PEP guided optimal AVD and VVD was significant.
- NYHA class reduced from 2.5 ± 0.8 to 2.0 ± 0.9 at follow-up.
Takeaway
Doctors used a new method to measure heart function during pacemaker adjustments, which helped improve patients' heart health.
Methodology
Blinded echo and radial artery tonometry were performed simultaneously in patients during Biv pacemaker optimization.
Limitations
The echo Doppler method is time intensive and may be influenced by QRS width changes.
Participant Demographics
{"age":"69.1 ± 12.8 years","gender":{"male":26,"female":11},"NYHA_class":{"I":2,"II":16,"III":14,"IV":5},"rhythm":{"sinus":33,"atrial_fibrillation":4},"etiology":{"ischemic":25,"non_ischemic":12}}
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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