Microcomputer system for telemetric assessment of short term heart rate variability in time and frequency domain, type VariaCardio TF4

Salinger, Jiří; Pumprla, J.; Vychodil, R.; Stejskal, Pavel; Opavský, J; Novotný, Jiřı́; Bula, J.

doi:10.1109/cic.1999.826042

Cited by 8 publications

(10 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For data acquisition and analyses of HRV, VarCor PF7 (Pantalus GmbH, Rheinmünster, Germany) was applied: a 1‐channel surface ECG was obtained continuously and transmitted telemetrically to a computer unit, providing an online preanalysis of HRV with an accuracy of measurement and sensitivity of 1000 Hz 20, 21. Each generated dataset was filtered automatically using a recognition algorithm, excluding recorded artifacts.…”

Section: Methodsmentioning

confidence: 99%

Impact of continuous intraoperative neuromonitoring on autonomic nervous system during thyroid surgery

et al. 2010

View full text Add to dashboard Cite

show abstract

Section: Methodsmentioning

confidence: 99%

Impact of continuous intraoperative neuromonitoring on autonomic nervous system during thyroid surgery

et al. 2010

View full text Add to dashboard Cite

show abstract

“…Papers 148(1), 63-67 (2004) TF3 13 and VARIA CARDIO TF4. 14 The spectral analysis of HRV using fast Fourier transformation partially modifi ed according to Yamamoto (coarse-graining spectral analysis) was used for data processing. The following parameters were used for evaluation: total spectral power (TOT.…”

Section: Methodsmentioning

confidence: 99%

Short-Term Spectral Analysis of Heart Rate Variability During Supine-Standing-Supine Test in Patients With Paroxysmal Atrial Fibrillation

Gałuszka¹,

Opavský²,

Lukl³

et al. 2004

Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub

View full text Add to dashboard Cite

The aim of the study was to assess the sympathovagal balance in group of 27 patients without significant structural heart disease after an attack of atrial fibrillation. The investigation was performed using spectral analysis of heart rate variability during examination under conditions of different orthostatic loads in single phases, called the supine-standing- supine test. The findings were compared with a group of healthy persons. These revealed a significantly decreased total spectral power (430.7 vs 1558.0 ms(2) supine1; 477.6 vs 1042,5 ms(2) standing; 567.5 vs 1948.5 ms(2) supine2), and spectral power of the high frequency spectral component (140.8 vs 619.3 ms(2) supine1; 96.2 vs 203.3 ms(2) standing; 186.3 vs 739.4 ms(2) supine2) in the studied group of patients in comparison with the control group.

show abstract

“…Examined patient stayed 5 minutes in every position for 300 RR intervals recording, value of "window" parameter was 256 (ref. [6][7][8] ). Record of RR intervals and HRV analysis were provided by using of VarCor PF5 microcomputer system for telemetric assessment of short term heart rate variability in time and frequency domain with application of fast Fourier transformation and partially modifi ed algorithm CGSA (coarse-graining spectral analysis) 9 .…”

Section: Methods and Clinical Applicationmentioning

confidence: 99%

What options does the supine-standing-supine test offer to patients with hypertension? Demonstrations of examples

Gałuszka¹

2007

Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub

View full text Add to dashboard Cite

Aims:The purpose of the study was to demonstrate autonomic nervous system (ANS) changes associated with treatment in hypertensive patients and utilization of these measurements in practice.Methods: Hypertensive patients were examined before the start of treatment and after blood pressure compensation. The telemetric system VarCor PF 5 was used for non-invasive heart rate registration and automatic evaluation of heart rate variability (HRV) parameters. The supine-standing-supine test with ortho-clinostatic loading in standard conditions was used for HRV evaluation.Results: The infl uence of antihypertensive therapy on ANS was demonstrated in two cases. The fi rst was a case of a responder to therapy and the second case was example of a non-responder to monotherapy regarding more therapeutic steps for blood pressure control. Diff erent modes of results presentation are demonstrated: 3D graph, numeric form of standard parameters of HRV, computer interpretation of results by means of complex parameters and indices in numeric, graphic and verbal form with functional age calculation, cross graph of vagal activity index versus sympatho-vagal balance index was used for repeated measurements and follow-up. The increased spectral performance with augmented vagal activity and slope down of sympatho-vagal ratio are evident after blood pressure control achievement. Improvement of functional age parameter associated with blood pressure compensation is visible using a complex age-dependent parameters interpretation.Conclusions: HRV evaluation in hypertensive patients provides new parameters for patient´s examination. These parameters are infl uenced by both the illness itself and by pharmacotherapy. Such an approach off ers more complex information about patient.

show abstract

Microcomputer system for telemetric assessment of short term heart rate variability in time and frequency domain, type VariaCardio TF4

Cited by 8 publications

References 5 publications

Impact of continuous intraoperative neuromonitoring on autonomic nervous system during thyroid surgery

Impact of continuous intraoperative neuromonitoring on autonomic nervous system during thyroid surgery

Short-Term Spectral Analysis of Heart Rate Variability During Supine-Standing-Supine Test in Patients With Paroxysmal Atrial Fibrillation

What options does the supine-standing-supine test offer to patients with hypertension? Demonstrations of examples

Contact Info

Product

Resources

About