Pagani M, Furlan R, Dell'Orto S, Pizzinelli P, Lanzi G, Baselli G, Santoli C, Cerutti S, Lombardi F, Malliani A
Cardiovasc Res. 1986 May;20(5):384-8. doi: 10.1093/cvr/20.5.384.
A system providing high quality direct arterial blood pressure recordings and electrocardiograms in ambulatory patients was devised using a modified commercially available Holter type magnetic tape recorder together with a microminiature Millar (3F) tip transducer. This system did not require a perfusion line and solved the major drawbacks of other available systems. Pressure and electrocardiographic data were fed directly from the playback unit into a minicomputer for automatic beat to beat waveform analysis. Thus the blood pressure and RR interval variability signals could be simultaneously analysed with autoregressive modelling techniques to provide a quantitative estimate of sympathovagal balance in ambulant patients. The system was reliable, simple, and safe to use.
