Echo-driven V-V optimization improves heart function in patients unresponsive to cardiac resynchronization therapy
Author Information
Author(s): Naqvi Tasneem Z, Rafique Asim M, Peter C Thomas
Primary Institution: Cedars-Sinai Medical Center
Hypothesis
Can echo-driven V-V optimization enhance clinical outcomes in patients who do not respond to cardiac resynchronization treatment?
Conclusion
Sequential ventricular pacing can improve cardiac output and functional class in patients who did not benefit from cardiac resynchronization therapy.
Supporting Evidence
- Patients showed improvement in cardiac output after V-V optimization.
- Individualized programming of pacemaker settings led to better heart function.
- Sequential pacing improved both inter and intraventricular synchrony.
Takeaway
Doctors used special heart imaging to help patients whose hearts weren't working well after treatment, and it made their hearts work better.
Methodology
The study used tissue Doppler imaging and conventional Doppler methods to optimize atrioventricular and interventricular delays in patients with heart failure.
Limitations
The study is not a consecutive series of patients, limiting insights into the prevalence of mechanisms leading to lack of benefit from CRT.
Participant Demographics
The study included 8 patients with varying ages and heart conditions, including ischemic and non-ischemic cardiomyopathy.
Digital Object Identifier (DOI)
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