A newly devised system using a modified Holter recorder and Millar tip transducer provided reliable, simple, and safe continuous recording of direct arterial pressure and ECG in ambulant patients.
A novel ambulatory system combining a modified Holter recorder and a Millar tip transducer enables safe, reliable, and continuous high-fidelity recording of direct arterial pressure and ECG for sympathovagal balance analysis.
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.
Pagani et al. (1986) studied Ambulatory patients. Continuous recording system using modified Holter recorder and Millar (3F) tip transducer was evaluated on System reliability, simplicity, and safety. A newly devised system using a modified Holter recorder and Millar tip transducer provided reliable, simple, and safe continuous recording of direct arterial pressure and ECG in ambulant patients.