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[The assessment and clinical significance of heart rate variability].
Pol Merkur Lekarski. 1999 Dec; 7(42):283-8.PM

Abstract

Heart rate variability (HRV) is a phenomenon to generation through the sinus node consecutive impulses in the different succession. HRV is regarded as a marker of autonomic nervous system tone of the heart. To assess HRV following methods: time domain, frequency domain and non-linear analysis are known. Time domain parameters correlate with frequency domain parameters. Some parameters can be used substitution, particularly reflect parasympathetic activity: rMSSD, pNN50 and HF. In clinical practice the most useful is time domain analysis based on 24-hours ecg Holter monitoring. Among time domain parameters the most significant prognostic value has SDNN. Decreased HRV following many diseases has been described. Significant prognostic value of decreased HRV after myocardial infarction (MI) and in patients with chronic heart failure (CHF) has been proved. Decreased HRV after MI is independent as well as ejection fraction (EF) sudden cardiac death risk factor. In patients with SDNN value below 50 ms high risk of cardiac death is observed. SDNN should be estimated on 7th day of MI to evaluate patients with high risk of sudden cardiac death. In patients after MI with ventricular tachycardia (VT) before VT decreased HRV is described. During MI beneficial influence of infarct-related artery patency on HRV is observed. HRV correlates with EF and infarct site too. HRV in patients with CHF correlates with EF and functional severity of CHF. Correlation between decreased HRV and increased mortality in CHF has been shown. In diabetic patients decreased HRV is observed. Following diabetes examination of HRV is useful to estimate early phase of autonomic neuropathy. Increase HRV parameters is observed in the course of beta-adrenolytic and converting enzyme inhibition treatment. In other diseases, including heart transplantation prognostic value of HRV and its clinical significance are still investigated.

Authors+Show Affiliations

I Katedry i Oddziału Klinicznego Kardiologii Slaskiej Akademii Medycznej, w Zabrzu.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

English Abstract
Journal Article
Review

Language

pol

PubMed ID

10710956

Citation

Sredniawa, B, et al. "[The Assessment and Clinical Significance of Heart Rate Variability]." Polski Merkuriusz Lekarski : Organ Polskiego Towarzystwa Lekarskiego, vol. 7, no. 42, 1999, pp. 283-8.
Sredniawa B, Musialik-Lydka A, Herdyńska-Was M, et al. [The assessment and clinical significance of heart rate variability]. Pol Merkur Lekarski. 1999;7(42):283-8.
Sredniawa, B., Musialik-Lydka, A., Herdyńska-Was, M., & Pasyk, S. (1999). [The assessment and clinical significance of heart rate variability]. Polski Merkuriusz Lekarski : Organ Polskiego Towarzystwa Lekarskiego, 7(42), 283-8.
Sredniawa B, et al. [The Assessment and Clinical Significance of Heart Rate Variability]. Pol Merkur Lekarski. 1999;7(42):283-8. PubMed PMID: 10710956.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [The assessment and clinical significance of heart rate variability]. AU - Sredniawa,B, AU - Musialik-Lydka,A, AU - Herdyńska-Was,M, AU - Pasyk,S, PY - 2000/3/11/pubmed PY - 2000/3/11/medline PY - 2000/3/11/entrez SP - 283 EP - 8 JF - Polski merkuriusz lekarski : organ Polskiego Towarzystwa Lekarskiego JO - Pol. Merkur. Lekarski VL - 7 IS - 42 N2 - Heart rate variability (HRV) is a phenomenon to generation through the sinus node consecutive impulses in the different succession. HRV is regarded as a marker of autonomic nervous system tone of the heart. To assess HRV following methods: time domain, frequency domain and non-linear analysis are known. Time domain parameters correlate with frequency domain parameters. Some parameters can be used substitution, particularly reflect parasympathetic activity: rMSSD, pNN50 and HF. In clinical practice the most useful is time domain analysis based on 24-hours ecg Holter monitoring. Among time domain parameters the most significant prognostic value has SDNN. Decreased HRV following many diseases has been described. Significant prognostic value of decreased HRV after myocardial infarction (MI) and in patients with chronic heart failure (CHF) has been proved. Decreased HRV after MI is independent as well as ejection fraction (EF) sudden cardiac death risk factor. In patients with SDNN value below 50 ms high risk of cardiac death is observed. SDNN should be estimated on 7th day of MI to evaluate patients with high risk of sudden cardiac death. In patients after MI with ventricular tachycardia (VT) before VT decreased HRV is described. During MI beneficial influence of infarct-related artery patency on HRV is observed. HRV correlates with EF and infarct site too. HRV in patients with CHF correlates with EF and functional severity of CHF. Correlation between decreased HRV and increased mortality in CHF has been shown. In diabetic patients decreased HRV is observed. Following diabetes examination of HRV is useful to estimate early phase of autonomic neuropathy. Increase HRV parameters is observed in the course of beta-adrenolytic and converting enzyme inhibition treatment. In other diseases, including heart transplantation prognostic value of HRV and its clinical significance are still investigated. SN - 1426-9686 UR - https://www.unboundmedicine.com/medline/citation/10710956/[The_assessment_and_clinical_significance_of_heart_rate_variability]_ DB - PRIME DP - Unbound Medicine ER -
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