Can a disease such as Orthostatic Hypotension (OH), which is characterised by extremely rapid changes in haemodynamics, be efficiently diagnosed using standard methods such as upper arm blood pressure measurement? The answer is no! This has just recently been confirmed by a brand-new meta-analysis of the prevalence of initial orthostatic hypotension in adults aged 65 and older by Tran et al. (2021). Data of more than 5,400 individuals underlines the insufficiency of intermittent blood pressure measurements to reliably diagnose OH, compared to continuous methods. In patients suffering from initial OH, systolic blood pressure drops to > 40mmHg or to > 20 mmHg in diastolic blood pressure within the first 15 seconds of Active Standing - a commonly used test to assess the cardiovascular response to standing. The rapid blood pressure changes can hardly be detected with an upper arm sphygmomanometer. In fact, the pooled prevalence of continuously measured initial OH was five times higher than intermittently measured initial OH. “Continuous blood pressure monitoring is recommended to capture the transient changes in blood pressure upon immediate active standing or passive tilting” (Tran et al. 2021).
Other scientific data by Mol et al. (2021) also shows the need for continuous measurements in Active Standing Tests as “Orthostatic BP measurements using sphygmomanometer have an inadequate time resolution to record clinically relevant dynamics of orthostatic blood pressure recovery” (Mol et al. 2021).
With regard to the negative implications such as pre-syncopal episodes or falls, the demand for continuous methods to reliably diagnose initial OH is evident. “There is a need to establish a consensus on the diagnosis of initial OH using continuous blood pressure devices to consistently identify participants with initial OH” (Tran et al. 2021).
Reliable non-invasive continuous blood pressure monitors have been on the market for a long time and have proven their importance for diagnosing initial OH. “Continuous BP measurements should be made routinely available and used in geriatric outpatient clinics” (Mol et al. 2021).
A comprehensive implementation of this claim is now easier than ever: CNSystems is launching the Touch Force® Touch CARDIO - an optimised solution for non-invasive haemodynamic measurement. It includes the successfully established CNAP® technology and has especially been designed for an easy application in the area of syncope assessment.
