The clinical trial compares the reproducibility and accuracy of cardiac tonometry-based portable systems that may detect early cardiac dysfunction (SphygmoCor® Xcel and Oscar 2™ ambulatory blood pressure monitor) at home and in the clinic to currently available screening tests for heart failure including echocardiogram (echo) and cardiovascular magnetic resonance (CMR). The SphygmoCor® Xcel and Oscar 2™ systems may help detect cardiac dysfunction earlier than other available screening tests because it can be self-administered outside of the clinic. This study aims to test the accuracy and practicality of these devices in the clinic setting and at home.
Primary Objective(s) Validate the accuracy of ejection fraction, as measured using a tonometry-based system (SphygmoCor® Xcel), in the clinic setting, and determine the reproducibility (Oscar 2™) at home. Secondary Objective(s) Determine the cost-effectiveness of tonometry-based screening in the clinic setting and at home.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
SCREENING
Masking
NONE
Enrollment
149
Undergo assessment via echo
Ancillary Studies
Undergo assessment via CMR
SphygmoCor® Xcel Oscar 2™ Ambulatory Blood Pressure Monitor
City of Hope Medical Center
Duarte, California, United States
Accuracy of ejection fraction (EF) in the clinic setting, and determine its reproducibility at home.
Validate the accuracy of ejection fraction, as measured using a tonometry-based system (SphygmoCor® Xcel), in the clinic setting, and determine the reproducibility (Oscar 2™) at home.
Time frame: Up to 2 years
Cost-effectiveness of tonometry-based screening in the clinic setting and at home.
Will apply the sensitivity and specificity of echo, CMR, and the Oscar 2™ ABPM system (clinic, home-based) to compare the number of asymptomatic cardiac dysfunction cases identified via each method. Screening costs for echo and CMR, including costs of clinical services, will be obtained from the 2020 Centers for Medicare \& Medicaid Services (CMS).
Time frame: Up to 2 years
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