Cardiology – When recording physiological signals in sleep medicine the usual 24-hour blood pressure cuff recording technique (Riva Rocci) has little informative value for nocturnal blood pressure. This method was designed for day-time blood pressure measurement while sitting upright with the cuff placed at the same level as your heart. For nocturnal measurements artifacts occur due to varying hydrostatic pressure caused by body position changes and arousal reactions due to the cuff inflation.

SOMNOmedics has recognized this issue, and developed a method for non-invasive, reaction-less, continuous blood pressure determination, without a cuff, based on PTT (Pulse Transit Time). This unique, patented* and validated** method allows you to provide a reliable picture of the nocturnal systolic/diastolic blood pressure with true extrema values. This innovation is available, as an option, for all SOMNOmedics products. Scroll down to find out more…

*   Patent numbers: DE 102005014048.3-35, EP 20060001181.4-1526, US 11/364 174 US 2006/0217616 A1, 7374542.
** Bilo, G., Parati, G. et al., Validation of the SOMNOtouch™ NIBP non-invasive continuous blood pressure monitor according to the European Society of Hypertension, International Protocol revision 2010.
SOMNOtouch NIBP while the measurement

Find out more about our powerful All-in-One product, which simultaneously records Holter ECG, oximetry, actigraphy and pulse wave velocity – as a measure of arterial stiffness – in addition to continuous long-term blood pressure – without a cuff!

Medical devices for Cardiology by Somnomedics

With more than 25 years of experience in the field of sleep medicine we were involved right from the start and gained valuable know-how from a very early stage. Find out about our range of sleep diagnostic devices here. Of course all of them can measure blood pressure continuously without a cuff.