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Evaluation of Heart Rate Variation Analysis during Rest and Tilting in Patients with Temporal Lobe Epilepsy.

Ansakorpi H, Korpelainen JT, Suominen K, Tolonen U, Bloigu R, Myllylä VV, Isojärvi JI - Neurol Res Int (2011)

Bottom Line: Upon changing from supine to standing position TP (P < 0.05) and LF (P < 0.05) were attenuated in patients with TLE compared to the control subjects.Conclusion.These results suggest that spectral analysis of HR variation from ECG recordings of short duration may add value to assessment of autonomic nervous system function using autonomic cardiac tests in patients with TLE.

View Article: PubMed Central - PubMed

Affiliation: Department of Neurology, University of Oulu, P.O. Box 5000, 90014 Oulu, Finland.

ABSTRACT
Objective. To evaluate spectral heart rate (HR) variation using short-term ECG recordings at rest and during the tilt table test. Methods. The values of spectral components of total power (TP), high-frequency power (HF), low-frequency power (LF) and LF: HF ratio were measured at rest and during the head-up tilt in patients with temporal lobe epilepsy (TLE) and their control subjects. Results. Compared to the control subjects, patients with TLE had lower HF (P < 0.05) and LF : HF ratio (P < 0.05) at rest and lower TP (P < 0.001), HF (P < 0.05), and LF (P < 0.05) during the head-up tilt. Upon changing from supine to standing position TP (P < 0.05) and LF (P < 0.05) were attenuated in patients with TLE compared to the control subjects. Conclusion. These results suggest that spectral analysis of HR variation from ECG recordings of short duration may add value to assessment of autonomic nervous system function using autonomic cardiac tests in patients with TLE.

No MeSH data available.


Related in: MedlinePlus

The change of total power from supine to standing in patients with refractory temporal lobe epilepsy (triangles), in patients with well-controlled temporal lobe epilepsy (circles), and the control subjects (squares). The values are estimated marginal means. The P-value describes the significance of the difference of the change from supine to standing position between the patient groups and the control subjects.
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fig1: The change of total power from supine to standing in patients with refractory temporal lobe epilepsy (triangles), in patients with well-controlled temporal lobe epilepsy (circles), and the control subjects (squares). The values are estimated marginal means. The P-value describes the significance of the difference of the change from supine to standing position between the patient groups and the control subjects.

Mentions: The nonparametric Mann-Whitney test was used in analysing unevenly distributed data. The difference of the changes of various measures of HR variation from supine to standing position was studied using the repeated measures analysis of variance. Because of unevenly distributed data, Tables 2 and 3 show the data as median (percentiles). However, as the data of analysis of repeated measures follows normal (Gaussian) distribution, the data in Table 4 is shown as mean (SD). The P-value of the interaction describing this change is reported in Table 4 and Figure 1. The P-value of ≤0.05 was considered to indicate a statistically significant difference. The statistical tests were performed with SPSS 14.0 software (SPSS Inc., Chicago, IL, USA).


Evaluation of Heart Rate Variation Analysis during Rest and Tilting in Patients with Temporal Lobe Epilepsy.

Ansakorpi H, Korpelainen JT, Suominen K, Tolonen U, Bloigu R, Myllylä VV, Isojärvi JI - Neurol Res Int (2011)

The change of total power from supine to standing in patients with refractory temporal lobe epilepsy (triangles), in patients with well-controlled temporal lobe epilepsy (circles), and the control subjects (squares). The values are estimated marginal means. The P-value describes the significance of the difference of the change from supine to standing position between the patient groups and the control subjects.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3140779&req=5

fig1: The change of total power from supine to standing in patients with refractory temporal lobe epilepsy (triangles), in patients with well-controlled temporal lobe epilepsy (circles), and the control subjects (squares). The values are estimated marginal means. The P-value describes the significance of the difference of the change from supine to standing position between the patient groups and the control subjects.
Mentions: The nonparametric Mann-Whitney test was used in analysing unevenly distributed data. The difference of the changes of various measures of HR variation from supine to standing position was studied using the repeated measures analysis of variance. Because of unevenly distributed data, Tables 2 and 3 show the data as median (percentiles). However, as the data of analysis of repeated measures follows normal (Gaussian) distribution, the data in Table 4 is shown as mean (SD). The P-value of the interaction describing this change is reported in Table 4 and Figure 1. The P-value of ≤0.05 was considered to indicate a statistically significant difference. The statistical tests were performed with SPSS 14.0 software (SPSS Inc., Chicago, IL, USA).

Bottom Line: Upon changing from supine to standing position TP (P < 0.05) and LF (P < 0.05) were attenuated in patients with TLE compared to the control subjects.Conclusion.These results suggest that spectral analysis of HR variation from ECG recordings of short duration may add value to assessment of autonomic nervous system function using autonomic cardiac tests in patients with TLE.

View Article: PubMed Central - PubMed

Affiliation: Department of Neurology, University of Oulu, P.O. Box 5000, 90014 Oulu, Finland.

ABSTRACT
Objective. To evaluate spectral heart rate (HR) variation using short-term ECG recordings at rest and during the tilt table test. Methods. The values of spectral components of total power (TP), high-frequency power (HF), low-frequency power (LF) and LF: HF ratio were measured at rest and during the head-up tilt in patients with temporal lobe epilepsy (TLE) and their control subjects. Results. Compared to the control subjects, patients with TLE had lower HF (P < 0.05) and LF : HF ratio (P < 0.05) at rest and lower TP (P < 0.001), HF (P < 0.05), and LF (P < 0.05) during the head-up tilt. Upon changing from supine to standing position TP (P < 0.05) and LF (P < 0.05) were attenuated in patients with TLE compared to the control subjects. Conclusion. These results suggest that spectral analysis of HR variation from ECG recordings of short duration may add value to assessment of autonomic nervous system function using autonomic cardiac tests in patients with TLE.

No MeSH data available.


Related in: MedlinePlus