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Širdies ritmo sutrikimų, variabilumo ir kairiojo skilvelio disfunkcijos prognozinės vertės ūminiu miokardo infarkto periodu nustatymas / Prognostic value of cardiac arrhythmias, heart rate variability and left ventricular dysfunction in patients with acute myocardial infarction

The scientific novelty of the study

A large number of reports have demonstrated that depressed heart rate variability after myocardial infarction (MI), left ventricular dysfunction and arrhythmias are powerful predictors of mortality. Nevertheless there is a lack of detailed assessment of heart rate variability in the acute period of MI, especially during the first 24 hours, from long-term (24-h) recordings, and the value of different parameters of heart rate variability in predicting dangerous complications of MI was not fully evaluated. The indications of complex and constant monitoring of heart rate variability, left ventricular function, arrhythmias in acute MI are not based on scientific studies as well as their value in predicting the effect of different methods of management, course and outcomes of critical cardiac conditions. Thus, the current study differs from all the earlier studies in that we assessed heart rate variability in the very early period of myocardial infarction (the first and the third day) using long time recordings (24 h), both – time-domain and frequency-domain –methods, and evaluated its changes in relation to arrhythmias and left ventricular function, using not only conventional 2D-echocardiography but also left ventricular long axis function assessment by M-mode and tissue Doppler imaging.

The aim of the study

The aim of the study was to determine the association between heart rate variability, cardiac arrhythmias and left ventricular... [to full text]

Identiferoai:union.ndltd.org:LABT_ETD/oai:elaba.lt:LT-eLABa-0001:E.02~2005~D_20050824_132752-86628
Date24 August 2005
CreatorsBakšytė, Giedrė
ContributorsBabarskienė, Marija Rūta, Ivaškevičius, Juozas, Stropus, Rimvydas Stasys, Mažeika, Liudas, Vaškelytė, Jolanta Justina, Dadonienė, Jolanta, Pangonytė, Dalia, Kaunas University of Medicine
PublisherLithuanian Academic Libraries Network (LABT), Kaunas University of Medicine
Source SetsLithuanian ETD submission system
LanguageLithuanian
Detected LanguageEnglish
TypeDoctoral thesis
Formatapplication/pdf
Sourcehttp://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050824_132752-86628
RightsUnrestricted

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