NICaS

NICaS is a bioimpedance system focusing on noninvasive assessment and monitoring of cardiovascular, respiratory, and fluid parameters. – Ni-Medical

NICaS provides real-time data on various parameters of a patient’s cardiac and vascular functions. The data from any given reading session is displayed on the screen according to the different parameters, patient reports can be issued and saved, trends of the patient’s heart condition can be viewed and monitored, and the system also provides historical data and comparative reports. NICaS measurements include the cardiac output and its derivatives, as well as an assessment of the left ventricular cardiac contractility. NICaS is also unique in that it is the only method of Impedance

Cardiography (ICG) which utilizes dual impedance electrodes, placed on two limbs, preferably one on the wrist and the other on the contralateral ankle. This type of electrical surveillance is called Regional ICG, or RIC. This technology is based on two independent principles: The first is the fact that the electrical conductance of the blood is higher than that of the surrounding tissue structures. Consequently, with each arterial systolic expansion (pulsation), an increase in the electrical conductance (or reduction in the electrical resistance) of the body is measured. This change in systolic resistance (impedance) is marked ΔR, and the baseline body resistance is R (measured in ohms Ω). The second principle, which is called the Granov Goor Index (GGI), is based on the systolic time intervals (STI) which, similarly to Left Ventricle Ejection Fraction (LVEF), can assess cardiac function i.e., as indicated by LVEF measurement, the lower the GGI the graver the condition.

The NICaS is a tetra polar apparatus which operates by an alternating current of 1.4 mA and 32 kHZ. The analog resistance signals are received by the device, where they are amplified and filtered. These signals are then transmitted to a microprocessor, where they are digitized and analyzed via mathematical algorithms. ECG, resistance and respiratory waveforms as well as numerical patterns are displayed on the screen. The collected data can be easily printed or viewed through several easy to define reports.