The course of nocturnal blood pressure has a high diagnostic value.
Continuous blood pressure determination without a cuff offers a multitude of advantages in nocturnal blood pressure measurements during sleep:

• Continuous Measurement: Covers all maxima and minima in blood pressure history and shows all information about blood pressure during sleep. This allows more accurate findings about nocturnal blood pressure behavior and to determine dipping / non-dipping safely.
• Safe Diagnosis: Continuous recording of blood pressure without measurement errors caused by inflation of the cuff. The patient is not disturbed by inflating the cuff (arousal reaction). Thus, there is no falsification of the measured values.
• Thanks to the measurement without a cuff, which patients often find very unpleasant when inflating, the SOMNOtouch™ NIBP offers maximum comfort for the patients.
• NBPF (Nocturnal Blood Pressure Fluctuations) after sleep disturbances (e.g. apnea, periodic leg movements) can be detected by the beat-to-beat blood pressure recording. These allow direct conclusions to the cardiovascular risk for the patient.
• The hydrostatic effect during body position changes is minimized.

SOMNOmedics uses an innovative patented algorithm to measure blood pressure via the Pulse Transit Time (PTT). The PTT is the time required for the pulse wave to propagate along the vessel wall between two defined points. In the case of the SOMNOtouch NIBP – From the left ventricle of the heart (defined by the ´R´peak of the ECG) – to the finger tip (detected by the plethysmograph).

Taking a one point calibration at the beginning of the sleep study allows us to `set` the software‘s algorithm – and measure blood pressure continuously throughout the day and night. Because every single pulse wave is detected, a continuous “Beat-to-Beat”- recording and analysis is possible. Reduce artifacts and increase the number of reliable data points – all in a continuous, non-invasive and non-reactive way.

In addition to the continuous, non-reactive long-term blood pressure measurement, further diagnostically relevant information are simultaneously recorded in one measurement:

• Holter ECG (3 channel)
• Oximetry
• Actigraphy
• Pulse Wave Velocity (PWV) as a measure of arterial stiffness

Due to the parallel recording, the measurement results can be correlated directly with each other, which allows a deeper insight into the nocturnal blood pressure behavior.

The built in Bluetooth module makes it possible to transfers the data in real time. You can do a signal check both, on the high resolution touch display of the SOMNOtouch™ , as well as having a screenshot of the recording data sent to your tablet PC or mobile phone via e-mail. Transfer times and -periods can be programmed individually.

With the innovative Intelligent Connect™ Technology: Both AUX slots can be used for any sensor that fits, the devices automatically detects which sensor has been connected to it. Therefore patients can not confuse many of the sensors when they apply the device themselves; physicians on the other hand do not always have to pre-chose a montage.

Blood Pressure Report

• Continuous 24 hour blood pressure profile´
• Detection of Dipper / Non-Dipper
• Detection of NBPF™ (Nocturnal Blood Pressure Fluctuations) as an indicator for cardic stress
• Determination of the superposition effect of the Blood Pressure
• Clear sleep/wake allocation by actigraphy

ECG Report

• ECG Holter Analysis with Schiller Software Plug-in: Arrhythmia analysis and ST segment measurement (optional, sold separately)
• Stress report based on HRV

 Oximetry Report

• Display of the blood Oxygen saturation and the correlation between nocturnal SpO₂ and nocturnal blood pressure
• Detection of respiratory based changes of the blood pressure (optional)

• 3 channel ECG with body position
• SpO2 Flexi-Wrap
• 1 EEG / 2 EOG Combi Sensor (for ambulatory sleep staging)
• Flow / Pressure Sensor
• 2 channel PLM
• Analogue Optocoupler

These sensors allow a correlation of blood pressure values with other diagnostic parameters (e.g. desaturations (respiratory analysis) or PLMs).