Abstract：
:Impedance cardiography (ICG) enables the non-invasive, reproducible, beat-to-beat estimation of stroke volume (SV) changes, and the measurement of the absolute values of the ejection time (ET) and pre-ejection period (PEP), which allows the indirect evaluation of cardiac contractility. The miniaturised, Holter-type impedance cardiography device with built-in one channel of ECG called ReoMonitor, was constructed. The system allows the long-term, beat-to-beat, automatic evaluation of SV, ET, PEP and heart rate. The measurements obtained by ReoMonitor were verified using on echocardiographic method in supine and tilted positions. A high correlation coefficient (r=0.83) was calculated between the measurements collected using both methods. Speech or vigorous movement distinctly lowered the percentage of properly recognised cardiac cycles (during daytime: 20-80%, during the night: 75-90%). However, during exercise testing on a cycloergometer the quality of recordings was good. The following clinical applications of a system are presented: a) evaluation of hemodynamical abnormalities caused by arrhythmia events, b) vasovagal syncope diagnosis, and c) optimisation of atrio-ventricular delay during dual-chamber pacing.
journal_name
Kardiol Poljournal_title
Kardiologia polskaauthors
Cybulski G,Koźluk E,Michalak E,Niewiadomski W,Piatkowska Asubject
Has Abstractpub_date
2004-08-01 00:00:00pages
138-46issue
8eissn
0022-9032issn
1897-4279journal_volume
61pub_type
杂志文章,评审abstract：BACKGROUND:Surgery of the pulmonary valve, right ventricular outflow tract, and pulmonary artery falls under the domain of paediatric cardiac surgery. However, 97 adult patients underwent such operations in our institution from 1993 to 2016. AIM:This study aims to analyse preoperative risk factors, intraoperative data...
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journal_title：Kardiologia polska
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journal_title：Kardiologia polska
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pub_type： 杂志文章
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更新日期：2004-04-01 00:00:00
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journal_title：Kardiologia polska
pub_type： 杂志文章
doi：
更新日期：1990-01-01 00:00:00
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journal_title：Kardiologia polska
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更新日期：1993-08-01 00:00:00
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更新日期：1992-08-01 00:00:00
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更新日期：2009-12-01 00:00:00
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更新日期：2008-02-01 00:00:00
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