Correlation of Heart Rate Variability and 24- hour Mean Heart Rate with TIMI Risk Score in Acute ST-Segment Elevation Myocardial Infarction.

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dc.contributor.authorChakrovortty, S K
dc.contributor.authorKhan, M R
dc.contributor.authorKundu, S
dc.contributor.authorBarua, S K
dc.contributor.authorDutta, B
dc.contributor.authorUddin, M N
dc.contributor.authorIslam, A K M M
dc.contributor.authorMajumder, A A S
dc.date.accessioned2015-12-15T05:59:53Z
dc.date.available2015-12-15T05:59:53Z
dc.date.issued2011
dc.description.abstractBackground: Thrombolysis In Myocardial Infarction (TIMI) risk score, heart rate variability (HRV) and 24hour mean heart rate all are important predictor of prognosis after ST segment elevation myocardial infarction(STEMI). Correlation among these factors has not been studied thoroughly. Methods: This study was conducted in NICVD (National Institute of Cardiovascular Diseases), Dhaka, from July 2008 to June 2009. Total 105 STEMI patients were included in the study. TIMI risk score were calculated and each patient under went 24hour Holter monitoring. SDNN for HRV and mean RR interval for mean heart rate were recorded. Results : Ninety one patients (mean age 53.9 ± 10.8 years), 86.7% were males and 14( mean age 59.8 ± 8.8 years), 13.3% were female. Stratification of subjects by TIMI risk score shows that nearly 60% had risk score in the range of 3 – 7, 17. % between 0 – 2 and 24% 8 or more than 8.SDNN and RR interval stratified by TIMI risk score demonstrates that both the variables decreases significantly with the increase of TIMI risk score. Among the TIMI risk groups SDNN values were 120.0 ± 19, 871.0 ± 20.5 and 40.9 ± 6.4 msec in mild, moderate and high risk group respectively(p=<0.001). Mean RR were 836.8 ± 121.0, 776.7 ± 130.3 and 649.7 ± 75.5 msec in low, intermediate and high risk group respectively(p<0.001). There was a significant correlation between depressed SDNN and high TIMI risk score (r=.893, p=.001). High TIMI risk score also showed a negative correlation with mean RR interval (r=-574, p<0.001). Mean RR and SDNN show a perfect linear relationship (r = 0.657, p < 0.001). Conclusion: It was observed that depressed heart rate variability and increased 24-hours mean heart rate correlates with high TIMI risk score after acute ST-elevation myocardial infarction.en_US
dc.identifier.citationChakrovortty S K, Khan M R, Kundu S, Barua S K, Dutta B, Uddin M N, Islam A K M M, Ullah M, Majumder A A S. Correlation of Heart Rate Variability and 24- hour Mean Heart Rate with TIMI Risk Score in Acute ST-Segment Elevation Myocardial Infarction. Cardiovascular Journal. 2011; 4(1): 8-12.en_US
dc.identifier.issn2071-0917
dc.identifier.issn2309-6357
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/168165
dc.language.isoenen_US
dc.source.urihttps://www.banglajol.info/index.php/CARDIO/article/view/9383en_US
dc.subjectTIMI risk scoreen_US
dc.subjectHeart rate variabilityen_US
dc.subjectSTEMIen_US
dc.titleCorrelation of Heart Rate Variability and 24- hour Mean Heart Rate with TIMI Risk Score in Acute ST-Segment Elevation Myocardial Infarction.en_US
dc.typeArticleen_US
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