Uscom - Model BP+ - Supra-Systolic Oscillometric Central Blood Pressure Monitoring Device
The Uscom BP+ is a Supra-systolic oscillometric central blood pressure (cBP) monitoring device which measures blood pressure and blood pressure waveforms at the heart, as well as in the arm; information only previously available using invasive cardiac catheterization.
IMPROVING THE ASSESSMENT AND MANAGEMENT OF HYPERTE...
IMPROVING THE ASSESSMENT AND MANAGEMENT OF HYPERTENSION
The BP+ and BP+ Reporter is the ideal cardiovascular research combination for the home, clinic or research laboratory. The Uscom BP+ replaces conventional and more widespread sub-systolic BP monitors, and is the emerging standard of care in hypertension, heart failure and vascular health. The Uscom BP+ provides a highly accurate and repeatable measurement of central and brachial blood pressure and pulse pressure waveforms for analysis (PWA) using a familiar upper arm cuff. The BP+ is simple to use and requires no complex training and has applications in hypertension, heart failure, intensive care, general practice and home care.
The Uscom BP+ Reporter is a patient archiving, analysis and reporting software for use with the Uscom BP+.
Compared to peripheral blood pressure, central BP more accurately represents the BP that affects the internal organs. Central BP also responds differently to treatment than conventional brachial BP.
The BP+ also measures peripheral BP, arterial stiffness, augmentation index, pulse rate variability and performs central and peripheral Pulse Waveform Analysis (PWA). It has a major application in hypertension research and management, ranging from the ICU to home care.
Applications
BP+ can be used anywhere a BP measurement is required and takes less than 90 seconds to perform. It can be used in the home, the clinic or research laboratory.
Hypertension
BP+ provides information for diagnosis, management and research of hypertension.
- Accurate central BP and PWA - a more powerful predictor of cardiovascular events than peripheral BP and the emerging gold standard of care.
- Reliable peripheral BP and pulse rate - the current standard in clinical hypertension
- Augmentation index - a sensitive indicator of arterial age, status and response to treatment
BP+ is rapid and easy to use in the operating room, consulting room, laboratory and dining room.
Cardiology
BP+ is the cardiologists tool for hypertension and vascular health. The BP+ allows:
- Direct measure of central BP and PWA – no generalised transfer function
- Cardiovascular risk determination
- Appropriate choice of hypertensive therapy
- Monitor treatment response
- Screen for arrhythmias
BP+ allows better treatment of hypertension.
General Practice
BP+ seamlessly fits with your work-flow and provides improved patient management.
- Reliable and accurate BP and central BP measurement
- Guides improved hypertension therapy
- Screen for arrhythmias
- Motivate and monitor the impact of healthy lifestyle choices on vascular health
Cardiovascular health assessment from an upper arm cuff.
Pharmacy
Rapid, simple, in-store services that improve customers cardiovascular care.
- New standard of care parameter – central BP
- Measure accurate BP, pulse rate and PWA
- Screen for abnormal heart rhythms
- Monitor the effects of lifestyle, illness and medications on returning customers
BP+ can help you connect and build ongoing relationships with your customers.
Research
The Uscom BP+ and BP+ Reporter are changing the way we understand, monitor and manage hypertension and cardiovascular disease. This novel technology allow researchers to develop new understandings of cardiovascular health and new therapies and that generate data for new publications.
Wellness Industry
The Wellness Industry offers an opportunity for early detection of cardiovascular disease. BP+ technology provides practice leading accuracy, simplicity, comfort, and affordability for performing detailed cardiac assessment in the home, the clinic or research laboratory. Using BP+ provides your customers with the most sensitive devices for early detection of cardiovascular disease and provides them with access to an easy ongoing monitoring programme.
BP+ provides simple measures for your customers to monitor the benefits of eating correctly, weight loss, smoking cessation and appropriate exercise, guiding them to a healthier lifestyle.
Exercise
Uscom BP+ can be used to monitor the success of exercise programs, allowing never previously available insights into cardiovascular physiology.
- Track Pulse Rate Variability to monitor fitness and screen for irregular heart rhythms
- Track the cardiovascular effects of exercise on the arteries over days, weeks, months and years
- Manage phased exercise programs
BP+ provides unique and novel insights into the performance of your heart and arteries, simply using a blood pressure cuff.
Features
BP+ provides comprehensive non-invasive cardiovascular assessment from an upper arm cuff and is as easy to use as a conventional BP device.
Central Blood Pressure: Measure aortic systolic and diastolic pressures.
Pulse Wave Analysis: Displays pressure changes at the aorta in a waveform in a 10 second strip that can be analysed by the BP+ Reporter or analysed visually. This can identify arrhythmias and pulse pressure fluctuations (rhythm strip).
Augmentation Index: Highly sensitive measure of vascular tone.
Stand-alone device: Press Start and get results in less than 90 seconds.
Digital patient archive, reporting and trending: BP+ Reporter is the software to accompany the Uscom BP+.
Accurate: Validated against cardiac catheters to surpass SP10, with built-in peripheral calibration.
Repeatable: Strong day-to-day and measure-to-measure repeatability with high intraclass correlation coefficient.
Fast and Comfortable: Complete measurement in less than 90 seconds.
Easy to use: Single upper-arm cuff, with one-button measurement.
Affordable: Advanced cardiovascular monitoring at home care prices.
Measurements
Central Blood Pressure
Central blood pressure (BP) is the pressure the heart works against, and it is the strongest predictor of cardiovascular risk.
Central BP is the pressure in the aorta, just near the heart.
Central BP is different from conventional BP measured in the upper arm, which is a 'peripheral' artery. Peripheral BP is usually higher than central BP due to the increased peripheral resistance as the arterial branches increase in number and become smaller. The degree to which the peripheral BP is higher than central BP depends partly on the stiffness of the arteries.
Central BP has been shown to more strongly reflect vascular disease and predict outcomes than traditional upper arm BP. Central BP can also determine the different effects of different hypertension medications when upper arm BP and pulse wave velocity do not. Central BP is the pressure that the heart has to pump against to get blood to flow to the rest of the body. Higher central BP means that the heart consumes more energy to pump blood. This can eventually lead to heart failure. Central BP also reflects the pressure in the blood vessels feeding the brain. If central BP is high, it this may lead to aneurysms and strokes.
Augmentation Index
The augmentation index is a ratio calculated from the pulse pressure waveform, and is a measure of wave reflection and arterial stiffness. Augmentation index is commonly accepted as a measure of the (augmentation) of central aortic pressure by a reflected pulse wave.
Arrhythmias and Heart Rhythm
BP+ provides a 10 second rhythm strip that simplifies identification of abnormal heart rhythms. Atrial fibrillation and premature ventricular contractions can be detected using the rhythm strip.
Arrhythmias and Heart Rhythm irregularities are displayed in more detail on the BP+ Reporter and may be included in printed reports.
Repeatability
Three consecutive measurements over a period of approximately 10 minutes were taken in 282 subjects recruited from primary-care facilities. Measurements were taken in the left arm with subjects in a sitting position.
Measurement sets were excluded from analysis if any blood pressure or BP+ measure could not be calculated, if signal-to-noise ratio was less than 6 dB or if augmentation index was more than 300%.
The remaining 254 sets of measurements were then analyzed. Limits of agreement (LoA) were calculated as twice the standard deviation of the difference between the three pairs of each set of three measurements. Intraclass correlation coefficient (ICC) was calculated using a two-way consistency model. A repeatability aspect ratio (AR = LoA / Range) was also calculated.
The ICC values indicate that BP+ parameters have e...
The ICC values indicate that BP+ parameters have excellent repeatability on par with standard oscillometric non-invasive blood pressure parameters.
The variability between the three consecutive recordings may be explained by true physiological changes such as minute-to-minute changes in blood pressure and vasoconstriction. They may also be due to arm motion or other environmental noise. In comparison, Frimodt-Moller et al.2 reports AR = 32% for inter-observer repeatability of tonometric augmentation index.
Augmentation index is calculated as a ratio of two numbers and therefore variability tends to increase with increasing augmentation index. For example, ICC for subjects with a median augmentation index below 150% (still significantly above the expected normal range) is 0.93.
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