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[Spectral indices of heart rate variability in patients with vasovagal syncopes according to evidence of 5-min ECG].
Ter Arkh. 2009; 81(4):17-21.TA

Abstract

AIM

To compare autonomic nervous system activity estimated by power spectral analysis of heart rate variability in patients with vasovagal syncopes and healthy volunteers.

MATERIAL AND METHODS

Seventeen health volunteers and 25 patients with vasovagal syncope were included in the study. In 16 cases faints were induced by head-up tilt table test (HTT), in 9 cases--by bicycle exercise test (BET). Power spectral analysis of heart rate variability in 5-th min ECG records was performed in supine and upright position while breath was fixed.

RESULTS

In supine position the data of low frequency (LF) and high frequency (HF) of spectral power in both groups of patients were significantly higher than in volunteers. During upright the HF of spectral power significantly decreased in patients and volunteers. In upright position LF of spectral power significantly decreased in patients with syncope induced by HTT, did not change in patients with syncope induced by BET, but significantly increased in volunteers.

CONCLUSION

Patients with vasovagal syncope had abnormal autonomic nervous system activity: a high level of parasympathetic influence in supine position and poor reaction of sympathetic nervous system during upright.

Authors

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Pub Type(s)

English Abstract
Journal Article

Language

rus

PubMed ID

19514416

Citation

Vershuta, E V., et al. "[Spectral Indices of Heart Rate Variability in Patients With Vasovagal Syncopes According to Evidence of 5-min ECG]." Terapevticheskii Arkhiv, vol. 81, no. 4, 2009, pp. 17-21.
Vershuta EV, Pevzner AV, Ermishkin VV, et al. [Spectral indices of heart rate variability in patients with vasovagal syncopes according to evidence of 5-min ECG]. Ter Arkh. 2009;81(4):17-21.
Vershuta, E. V., Pevzner, A. V., Ermishkin, V. V., Kuchinskaia, E. A., Al'bitskaia, K. V., Kheĭmets, G. I., Mazygula, E. P., Rogoza, A. N., Golitsyn, S. P., & Gorelova, O. M. (2009). [Spectral indices of heart rate variability in patients with vasovagal syncopes according to evidence of 5-min ECG]. Terapevticheskii Arkhiv, 81(4), 17-21.
Vershuta EV, et al. [Spectral Indices of Heart Rate Variability in Patients With Vasovagal Syncopes According to Evidence of 5-min ECG]. Ter Arkh. 2009;81(4):17-21. PubMed PMID: 19514416.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Spectral indices of heart rate variability in patients with vasovagal syncopes according to evidence of 5-min ECG]. AU - Vershuta,E V, AU - Pevzner,A V, AU - Ermishkin,V V, AU - Kuchinskaia,E A, AU - Al'bitskaia,K V, AU - Kheĭmets,G I, AU - Mazygula,E P, AU - Rogoza,A N, AU - Golitsyn,S P, AU - Gorelova,O M, PY - 2009/6/12/entrez PY - 2009/6/12/pubmed PY - 2009/8/22/medline SP - 17 EP - 21 JF - Terapevticheskii arkhiv JO - Ter Arkh VL - 81 IS - 4 N2 - AIM: To compare autonomic nervous system activity estimated by power spectral analysis of heart rate variability in patients with vasovagal syncopes and healthy volunteers. MATERIAL AND METHODS: Seventeen health volunteers and 25 patients with vasovagal syncope were included in the study. In 16 cases faints were induced by head-up tilt table test (HTT), in 9 cases--by bicycle exercise test (BET). Power spectral analysis of heart rate variability in 5-th min ECG records was performed in supine and upright position while breath was fixed. RESULTS: In supine position the data of low frequency (LF) and high frequency (HF) of spectral power in both groups of patients were significantly higher than in volunteers. During upright the HF of spectral power significantly decreased in patients and volunteers. In upright position LF of spectral power significantly decreased in patients with syncope induced by HTT, did not change in patients with syncope induced by BET, but significantly increased in volunteers. CONCLUSION: Patients with vasovagal syncope had abnormal autonomic nervous system activity: a high level of parasympathetic influence in supine position and poor reaction of sympathetic nervous system during upright. SN - 0040-3660 UR - https://www.unboundmedicine.com/medline/citation/19514416/[Spectral_indices_of_heart_rate_variability_in_patients_with_vasovagal_syncopes_according_to_evidence_of_5_min_ECG]_ L2 - https://medlineplus.gov/guidetogoodposture.html DB - PRIME DP - Unbound Medicine ER -