scholarly journals Opportunities of ivabradine to reduce heart rate before CT coronary angiography in young patients with connective tissue dysplasia

2014 ◽  
Vol 5 (1) ◽  
pp. 50-55
Author(s):  
I. V Druk ◽  
G. I Nechayeva ◽  
Yu. T Ignatyev ◽  
S. I Aksenov ◽  
N. I Orlova
Keyword(s):  
Computed Tomography ◽  
Heart Rate ◽  
Coronary Angiography ◽  
Connective Tissue ◽  
Young Patients ◽  
Ct Coronary Angiography ◽  
Efficacy And Safety ◽  
Reduce Heart Rate ◽  
Connective Tissue Dysplasia ◽  
Group 1

To assess the efficacy and safety application ivabradine to control the heart rate before the procedure computed tomography coronary angiography (CTCA) in young patients with connective tissue dysplasia (CTD) were surveyed 65 patients (age 24,9±6,4 years; 40 men). Patients were divided into 2 groups: group 1 (n=47; 29 men) to achieve the heart rate

High-dose intravenous metoprolol usage for reducing heart rate at CT coronary angiography: Efficacy and safety

2014 ◽  
Vol 69 (7) ◽  
pp. 739-744 ◽  
Author(s):  
V.M. Raju ◽  
O.E. Gosling ◽  
G. Morgan-Hughes ◽  
R.J. Colliver ◽  
S. Iyengar ◽  
...  
Keyword(s):  
Heart Rate ◽  
Coronary Angiography ◽  
Ct Coronary Angiography ◽  
High Dose ◽  
Efficacy And Safety

Abolition of Respiratory-Motion Artifact in Computed Tomography Coronary Angiography with Ultrafast Examinations: A Comparison between 64-row and 320-row Multidetector Scanners

2010 ◽  
Vol 61 (1) ◽  
pp. 5-12 ◽  
Author(s):  
Felipe S. Torres ◽  
Andrew M. Crean ◽  
Elsie T. Nguyen ◽  
Ravi Menezes ◽  
Deirdre Doyle ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Coronary Angiography ◽  
Multidetector Ct ◽  
Motion Artifact ◽  
Ct Coronary Angiography ◽  
Respiratory Motion Artifact ◽  
Scan Time ◽  
Group 2 ◽  
Coronary Angiograms ◽  
Group 1

Purpose To compare the incidence of respiratory artifact in computed tomography (CT) coronary angiography performed with 64-row and 320-row multidetector scanners and to assess its effect on coronary evaluability. Methods A retrospective review of consecutive coronary angiograms performed on a 64-row multidetector CT from March to April 2007 (group 1: 115 patients, 63 men; mean age [standard deviation] 59.6 ± 12.8 years) and on a 320-row multidetector CT from March to April 2008 (group 2: 169 patients, 89 men; mean [SD] age 57.9 ± 11.6 years). Two cardiac radiologists assessed the occurrence of respiratory artifact and coronary evaluability in studies with respiratory artifacts. Unevaluable coronary segments because of motion at the same anatomical level of the respiratory artifact were considered unevaluable because of this artifact. The association between the occurrence of respiratory artifact and patient biometrics, medication, and scan parameters was examined. Results Respiratory artifacts were detected in 9 of the 115 patients from group 1 (7.8%) and in none of the 169 patients from group 2 ( P < .001). Group 1 had longer scan times (median, 9.3 seconds; range, 7.5−14.4 seconds) compared with group 2 (median, 1.5 seconds; range, 1.1−3.5 seconds; P < .001). In group 1, 4 patients (3.5%) showed unevaluable coronary segments because of respiratory artifacts, and the CT coronary angiography was repeated in 1 patient (0.9%). Conclusions Respiratory artifacts are important in CT coronary angiography performed with 64-row multidetector scanners and impair the diagnostic utility of the examination in up to 3.5% of the studies. These artifacts can be virtually eliminated with a faster scan time provided by 320-row multidetector CT.

Assessment of image quality of 64-row Dual Source versus Single Source CT coronary angiography on heart rate: A phantom study

2009 ◽  
Vol 70 (1) ◽  
pp. 61-68 ◽  
Author(s):  
R. Dikkers ◽  
M.J.W. Greuter ◽  
W. Kristanto ◽  
P.M.A. van Ooijen ◽  
P.E. Sijens ◽  
...  
Keyword(s):  
Heart Rate ◽  
Image Quality ◽  
Coronary Angiography ◽  
Ct Coronary Angiography ◽  
Phantom Study ◽  
Single Source ◽  
Dual Source

scholarly journals Assessment of heart rate variability and tone of the autonomic nervous system in puberty-aged children with undifferentiated connective tissue dysplasia

2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
O V Sidorovich ◽  
S Y U Elizarova ◽  
A V Khizhnyak ◽  
N A Kuznetsova ◽  
E E Prosova
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Nervous System ◽  
Autonomic Nervous System ◽  
Connective Tissue ◽  
Control Group ◽  
Healthy Children ◽  
Autonomic Nervous ◽  
Connective Tissue Dysplasia ◽  
End Of Puberty

Abstract   Within the framework of the research into pathological conditions and syndromes associated with undifferentiated connective tissue dysplasia (UCTD), an emphasis needs to be placed on the changes in heart rhythm. In puberty, the severity of neurovegetative disorders caused by the presence of UCTD might increase manifold. The features of heart rate variability (HRV) in pubertal children against the background of UCTD have been studied insufficiently and require more detailed analysis. This study aims to assess heart rate variability and tone of the autonomic nervous system (ANS) in puberty-aged children with UCTD. Two groups of children were examined, with methods including electrocardiography and cardiointervalography. The main group consisted of 36 puberty-aged children with UCTD, the control group consisted of 30 healthy children. ANS tone was assessed based on the HRV. In the control group of children aged 11, the value of variation range (VR) was 0.18±0.4, mode amplitude (MA) 35.2±2.4, stress index (IN) 72.8±4.3, which corresponds to the state of vegetative balance. As the puberty progresses, the state of eutonia is replaced by the activation of the sympathetic division of the ANS, which becomes most pronounced at the age of 13 years. In the control group of children aged 13, the value of VR was 0.08±0.02, MA 61.7±2.1, SI 210.6±8.6, which corresponds to moderate sympathicotonia. By the end of puberty, in healthy children, the severity of sympathetic activation begins to decrease, and at the age of 15 years, vegetative balance is again observed. However, this pattern is violated in children with UCTD. Upon entering puberty, moderate activation of the sympathetic division of the ANS is already observed in children with UCTD. At the age of 11 years in this group, the value of VR is 0.06±0.02, MA 72.4±3.1, SI 211.2±8.6. At the age of 13, pronounced sympathicotonia is observed, which is confirmed by the values of VR - 0.04±0.01, MA 80.2±4.3 and SI 34.3±14.7. By the end of puberty in children with UCTD, in contrast to the control group, the analyzed parameters indicate not an equilibrium of the ANS, but the predominance of parasympathetic activation. The research provides an insight into heart rate variability in puberty-aged children with UCTD. It was established that healthy children enter puberty in a state of equilibrium of the autonomic nervous system, which in the middle of puberty is replaced by moderate sympathicotonia, and then returns to its original values. Children with the presence of UCTD enter puberty with moderately pronounced sympathicotonia, which gradually increases to pronounced values and is replaced by moderate vagotonia. FUNDunding Acknowledgement Type of funding sources: None.

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