Heart rate variability analysed by Poincaré plot in patients with metabolic syndrome
Language English Country United States Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
26639443
DOI
10.1016/j.jelectrocard.2015.11.004
PII: S0022-0736(15)00372-6
Knihovny.cz E-resources
- Keywords
- Poincaré plot, controlled breathing, heart rate variability, metabolic syndrome, tilt table test,
- MeSH
- Algorithms MeSH
- Diagnosis, Computer-Assisted MeSH
- Adult MeSH
- Electrocardiography MeSH
- Humans MeSH
- Metabolic Syndrome diagnosis physiopathology MeSH
- Oscillometry methods MeSH
- Reproducibility of Results MeSH
- Sensitivity and Specificity MeSH
- Arrhythmias, Cardiac diagnosis physiopathology MeSH
- Heart Rate * MeSH
- Check Tag
- Adult MeSH
- Humans MeSH
- Male MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
INTRODUCTION: The SD1 and SD2 indexes (standard deviations in two orthogonal directions of the Poincaré plot) carry similar information to the spectral density power of the high and low frequency bands but have the advantage of easier calculation and lesser stationarity dependence. METHODS: ECG signals from metabolic syndrome (MetS) and control group patients during tilt table test under controlled breathing (20 breaths/minute) were obtained. SD1, SD2, SDRR (standard deviation of RR intervals) and RMSSD (root mean square of successive differences of RR intervals) were evaluated for 31 control group and 33 MetS subjects. RESULTS: Statistically significant lower values were observed in MetS patients in supine position (SD1: p=0.03, SD2: p=0.002, SDRR: p=0.006, RMSSD: p=0.01) and during tilt (SD2: p=0.004, SDRR: p=0.007). CONCLUSION: SD1 and SD2 combining the advantages of time and frequency domain methods, distinguish successfully between MetS and control subjects.
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