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Cardiac electromechanical activity in healthy cats and cats with cardiomyopathies
ID Brložnik, Maja (Author), ID Lunka, Ema (Author), ID Avbelj, Viktor (Author), ID Nemec Svete, Alenka (Author), ID Domanjko-Petrič, Aleksandra (Author)

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Abstract
Optimal heart function depends on perfect synchronization between electrical and mechanical activity. In this pilot study, we aimed to investigate the electromechanical activity of the heart in healthy cats and cats with cardiomyopathy with phonocardiography (PCG) synchronized to an electrocardiography (ECG) pilot device. We included 29 cats (12 healthy cats and 17 cats diagnosed with cardiomyopathy) and performed a clinical examination, PCG synchronized with ECG and echocardiography. We measured the following durations with the pilot PCG device synchronized with ECG: QRS (ventricular depolarization), QT interval (electrical systole), QS1 interval (electromechanical activation time (EMAT)), S1S2 (mechanical systole), QS2 interval (electrical and mechanical systole) and electromechanical window (end of T wave to the beginning of S2). The measured parameters did not differ between healthy cats and cats with cardiomyopathy; however, in cats with cardiomyopathy, EMAT/RR, QS2/RR and S1S2/RR were significantly longer than in healthy cats. This suggests that the hypertrophied myocardium takes longer to generate sufficient pressure to close the mitral valve and that electrical systole, i.e., depolarization and repolarization, and mechanical systoles are longer in cats with cardiomyopathy. The PCG synchronized with the ECG pilot device proved to be a valuable tool for evaluating the electromechanical activity of the feline heart.

Language:English
Keywords:electrocardiography, phonocardiography, echocardiography, cardiomyopathies, cats
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:VF - Veterinary Faculty
Publication status:Published
Publication version:Version of Record
Year:2023
Number of pages:13 str.
Numbering:Vol. 29, issue 19, [art. no.] 8336
PID:20.500.12556/RUL-151616 This link opens in a new window
UDC:636.09:616
ISSN on article:1424-8220
DOI:10.3390/s23198336 This link opens in a new window
COBISS.SI-ID:167620099 This link opens in a new window
Publication date in RUL:12.10.2023
Views:272
Downloads:18
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Record is a part of a journal

Title:Sensors
Shortened title:Sensors
Publisher:MDPI
ISSN:1424-8220
COBISS.SI-ID:10176278 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:12.10.2023

Projects

Funder:ARRS - Slovenian Research Agency
Project number:P4-0053
Name:Endokrini, imunski in encimski odzivi pri zdravih in bolnih živalih

Funder:ARRS - Slovenian Research Agency
Project number:P2-0095
Name:Vzporedni in porazdeljeni sistemi

Funder:ARRS - Slovenian Research Agency
Project number:J3-3066
Name:Optimizacija s trombociti in zunajceličnimi vezikli bogate avtologne krvne plazme za zdravljenje pooperativnih ran v otorinolaringologiji

Funder:ARRS - Slovenian Research Agency
Project number:P3-0388
Name:Mehanizmi varovanja zdravja

Funder:ARRS - Slovenian Research Agency
Project number:L3-2621
Name:Mehanizmi omajanja endoproteze kolka

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