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The non-invasive evaluation of heart function in patients with an acute myocardial infarction: The role of impedance cardiography
Affiliations- University Center for Cardiology, Dębinki 2, 80-211 Gdańsk, Poland
- Pomeranian Cardiology Centers
- Department of Mechatronics and High Voltage Engineering, Gdansk University of Technology, Gdansk, Poland
- University Center for Cardiology, Gdansk, Poland; Department of Family Medicine, Medical University of Gdansk, Gdansk, Poland, Poland
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Abstract
Background: The purpose of this study was to analyze hemodynamic changes in patients treated with
percutaneous coronary intervention (PCI) at an early stage of acute myocardial infarction (AMI) and at 1-month follow-up.
Methods: Patients with AMI (n = 27) who underwent PCI were analyzed using impedance cardiography
(ICG). ICG data were collected continuously (beat by beat) during the whole PCI procedure and thereafter at every 60 s for the next 24 h. Blood pressure was taken every 10 min and stored for analysis. Additionally the following parameters were measured: cardiac index (CI), stroke volume index (SVi), left cardiac work index (LCWi), contractility index (CTi), ventricular ejection time (VET), systemic vascular resistance index (SVRi), thoracic fluid content index (TFCi) and heart rate (HR).
Results: In the first 24 h after PCI all the contractility parameters including CI, SVi, LCWi, CTi and VET significantly decreased, whereas HR, SVRi and TFCi increased compared to baseline. All of the parameters examined got normalized at 1 month. The CI, SVi, LCWi, CTi, SVRi did not significantly differ from baseline, however the HR and VET were significantly lower compared to first day after PCI
Conclusions: Cardiac performance deteriorates early after PCI and normalizes after 1 month in patients with an AMI. ICG is useful for hemodynamic monitoring of AMI patients during and after invasive therapy.
Abstract
Background: The purpose of this study was to analyze hemodynamic changes in patients treated with
percutaneous coronary intervention (PCI) at an early stage of acute myocardial infarction (AMI) and at 1-month follow-up.
Methods: Patients with AMI (n = 27) who underwent PCI were analyzed using impedance cardiography
(ICG). ICG data were collected continuously (beat by beat) during the whole PCI procedure and thereafter at every 60 s for the next 24 h. Blood pressure was taken every 10 min and stored for analysis. Additionally the following parameters were measured: cardiac index (CI), stroke volume index (SVi), left cardiac work index (LCWi), contractility index (CTi), ventricular ejection time (VET), systemic vascular resistance index (SVRi), thoracic fluid content index (TFCi) and heart rate (HR).
Results: In the first 24 h after PCI all the contractility parameters including CI, SVi, LCWi, CTi and VET significantly decreased, whereas HR, SVRi and TFCi increased compared to baseline. All of the parameters examined got normalized at 1 month. The CI, SVi, LCWi, CTi, SVRi did not significantly differ from baseline, however the HR and VET were significantly lower compared to first day after PCI
Conclusions: Cardiac performance deteriorates early after PCI and normalizes after 1 month in patients with an AMI. ICG is useful for hemodynamic monitoring of AMI patients during and after invasive therapy.
Keywords
impedance cardiography, acute myocardial infarction, hemodynamics, percutaneous coronary intervention
About this articleTitle
The non-invasive evaluation of heart function in patients with an acute myocardial infarction: The role of impedance cardiography
Journal
Issue
Article type
Original Article
Pages
77-85
Published online
2019-10-21
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1477
Article views/downloads
1323
DOI
Pubmed
Bibliographic record
Cardiol J 2021;28(1):77-85.
Keywords
impedance cardiography
acute myocardial infarction
hemodynamics
percutaneous coronary intervention
Authors
Lukasz Lewicki
Marta Fijalkowska
Maciej Karwowski
Konrad Siebert
Grzegorz Redlarski
Aleksander Palkowski
Radoslaw Targonski
Janusz Siebert
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