Effect of Acute Mental Stress on Heart Rate and QT Variability in Postmyocardial Infarction Patients
Joint Authors
Magrì, Damiano
Lizio, Andrea
Quaglione, Raffaele
Velitti, Stefania
Piccirillo, Gianfranco
Di Barba, Daniele
Maisto, Damiana
Mitra, Marilena
Barillà, Francesco
Dell’Armi, Annalaura
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-15
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Emotionally charged events are associated with an increased risk of sudden cardiac death (SCD).
In this study we assessed RR and QT variability index (QTVI) at baseline during anger recall test (AR).
We calculated QTVI from a 5-min ECG recording and from a 10-beats segment around the presumed maximum sympathetic activation in thirty post-myocardial infarction patients under β-blocker therapy and 10 controls underwent.
In all groups, the low-frequency component of RR and SBP increased during AR.
In all recordings, the QTVI calculated on a 5-min ECG recording and the QTVI10 beats were higher in patients than in controls (P < 0.05).
The QTVI during AR remained unchanged from baseline within each group.
Conversely, during AR, the QTVI10 beats in controls diminished significantly (P < 0.05) from baseline whereas in patients remained unchanged.
The inability to buffer an acute stress-induced increase in sympathetic activity could explain why events charged with acute stress are associated with an increased risk of ventricular arrhythmias in this setting of patients and support the role of cognitive behavior stress management strategies.
American Psychological Association (APA)
Magrì, Damiano& Piccirillo, Gianfranco& Quaglione, Raffaele& Dell’Armi, Annalaura& Mitra, Marilena& Velitti, Stefania…[et al.]. 2012. Effect of Acute Mental Stress on Heart Rate and QT Variability in Postmyocardial Infarction Patients. ISRN Cardiology،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-507516
Modern Language Association (MLA)
Magrì, Damiano…[et al.]. Effect of Acute Mental Stress on Heart Rate and QT Variability in Postmyocardial Infarction Patients. ISRN Cardiology No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-507516
American Medical Association (AMA)
Magrì, Damiano& Piccirillo, Gianfranco& Quaglione, Raffaele& Dell’Armi, Annalaura& Mitra, Marilena& Velitti, Stefania…[et al.]. Effect of Acute Mental Stress on Heart Rate and QT Variability in Postmyocardial Infarction Patients. ISRN Cardiology. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-507516
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-507516