No effects on heart-rate variability and cardiovascular reflex tests after botulinum toxin treatment of cervical dystonia

1996 ◽  
Vol 11 (3) ◽  
pp. 337-339 ◽  
Author(s):  
Angelika Nebe ◽  
Ludwig Schelosky ◽  
J�rg Wissel ◽  
Georg Ebersbach ◽  
Udo Scholz ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Botulinum Toxin ◽  
Cervical Dystonia ◽  
Cardiovascular Reflex ◽  
Cardiovascular Reflex Tests ◽  
Botulinum Toxin Treatment

scholarly journals Heart Rate Variability and Cardiovascular Reflex Tests for Assessment of Autonomic Functions in Preeclampsia

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Meenakshi Chaswal ◽  
Raj Kapoor ◽  
Achla Batra ◽  
Savita Verma ◽  
Bhupendra S. Yadav
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Pregnant Women ◽  
Frequency Domain ◽  
Low Frequency ◽  
Normal Pregnancy ◽  
Total Power ◽  
Autonomic Functions ◽  
Cardiovascular Reflex ◽  
Cardiovascular Reflex Tests

Alterations in the autonomic cardiovascular control have been implicated to play an important etiologic role in preeclampsia. The present study was designed to evaluate autonomic functions in preeclamptic pregnant women and compare the values with normotensive pregnant and healthy nonpregnant controls. Assessment of autonomic functions was done by cardiovascular reflex tests and by analysis of heart rate variability (HRV). Cardiovascular reflex tests included deep breathing test (DBT) and lying to standing test (LST). HRV was analyzed in both time and frequency domain for quantifying the tone of autonomic nervous system to the heart. The time domain measures included standard deviation of normal R-R intervals (SDNN) and square root of mean squared differences of successive R-R intervals (RMSSD). In the frequency domain we measured total power (TP), high frequency (HF) power, low frequency (LF) power, and LF/HF ratio. Cardiovascular reflex tests showed a significant parasympathetic deficit in preeclamptic women. Among parameters of HRV, preeclamptic group had lower values of SDNN, RMSSD, TP, HF, and LF (ms2) and higher value of LF in normalised units along with high LF/HF ratio compared to normotensive pregnant and nonpregnant controls. Furthermore, normotensive pregnant women had lower values of SDNN, TP, and LF component in both absolute power and normalised units compared to nonpregnant females. The results confirm that normal pregnancy is associated with autonomic disturbances which get exaggerated in the state of preeclampsia.

Power Spectral Analysis of Heart Rate Variability in Patients with Charcot’s Neuroarthropathy

2006 ◽  
Vol 96 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Alexandra Jirkovská ◽  
Petr Boucek ◽  
Stephanie Wu ◽  
Jana Hosová ◽  
Robert Bém ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Spectral Analysis ◽  
Autonomic Neuropathy ◽  
Power Spectral Analysis ◽  
Short Term ◽  
Cardiovascular Reflex ◽  
Cardiovascular Reflex Tests ◽  
Power Spectral ◽  
Significant Difference

Charcot’s or neuropathic osteoarthropathy is one of the most debilitating orthopedic sequelae of diabetes mellitus. Distinguishing Charcot’s neuroarthropathy from clinically similar conditions may be challenging. The neurovascular theory postulates that Charcot’s neuroarthropathy may be secondary to sympathetic denervation of the lower-extremity vasculature. A convenient method for assessing autonomic neuropathy in patients with Charcot’s neuroarthropathy is needed. Short-term power spectral analysis (PSA) of heart rate variability (HRV), a noninvasive and quantitative method for assessing autonomic neuropathy, may be advantageous compared with the traditionally used Ewing’s cardiovascular reflex tests. However, there are limitations to the clinical use of PSA of HRV because of poor standardization. We standardized PSA of HRV and assessed autonomic neuropathy in 17 people with acute Charcot’s neuroarthropathy using PSA of HRV versus Ewing’s tests. More patients with Charcot’s neuroarthropathy were diagnosed as having autonomic neuropathy with PSA of HRV than with Ewing’s tests (94% versus 82%); however, no significant difference between the two methods was found. The results of this study suggest that PSA of HRV requires minimal patient collaboration and time expenditure compared with Ewing’s tests and may be useful in detecting autonomic neuropathy in patients with Charcot’s neuroarthropathy. (J Am Podiatr Med Assoc 96(1): 1–8, 2006)

Repeatability of Heart Rate Variability During Simple Cardiovascular Reflex Tests on Healthy Subjects

2001 ◽  
Vol 32 (1) ◽  
pp. 21-26 ◽  
Author(s):  
Kathrine Jáuregui-Renaud ◽  
Antonio G Hermosillo ◽  
Manlio F Márquez ◽  
Fernando Ramos-Aguilar ◽  
Mariano Hernández-Goribar ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Healthy Subjects ◽  
Cardiovascular Reflex ◽  
Cardiovascular Reflex Tests

scholarly journals Adverse events with botulinum toxin treatment in cervical dystonia: How much should we blame placebo?

2018 ◽  
Vol 56 ◽  
pp. 16-19 ◽  
Author(s):  
Gonçalo S. Duarte ◽  
Filipe B. Rodrigues ◽  
Joaquim J. Ferreira ◽  
João Costa
Keyword(s):  
Botulinum Toxin ◽  
Adverse Events ◽  
Cervical Dystonia ◽  
Botulinum Toxin Treatment

scholarly journals Cause or effect: Altered brain and network activity in cervical dystonia is partially normalized by botulinum toxin treatment

2019 ◽  
Vol 22 ◽  
pp. 101792 ◽  
Author(s):  
Stefan Brodoehl ◽  
Franziska Wagner ◽  
Tino Prell ◽  
Carsten Klingner ◽  
O.W. Witte ◽  
...  
Keyword(s):  
Botulinum Toxin ◽  
Cervical Dystonia ◽  
Network Activity ◽  
Botulinum Toxin Treatment
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