Cardiac Rehabilitation Improves the QRS Fragmentation in Patients With ST Elevatıon Myocardial Infarction
Introduction: We aimed to evaluate the effect of exercise-based cardiac rehabilitation (CR) on the fragmented QRS (fQRS) in patients with ST elevation myocardial infarction (STEMI). Methods: Ninety-seven patients with STEMI participated CR and 81 patients as a control group were included to the stud...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Tabriz University of Medical Sciences
2015-09-01
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| Series: | Journal of Cardiovascular and Thoracic Research |
| Subjects: | |
| Online Access: | http://journals.tbzmed.ac.ir/JCVTR/PDF/JCVTR-7-96.pdf |
| _version_ | 1818904602250051584 |
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| author | Mustafa Bulut Rezzan Deniz Acar Sunay Ergün Çetin Geçmen Mustafa Akçakoyun |
| author_facet | Mustafa Bulut Rezzan Deniz Acar Sunay Ergün Çetin Geçmen Mustafa Akçakoyun |
| author_sort | Mustafa Bulut |
| collection | DOAJ |
| description | Introduction: We aimed to evaluate the effect of exercise-based cardiac rehabilitation (CR) on the fragmented QRS (fQRS) in patients with ST elevation myocardial infarction (STEMI).
Methods: Ninety-seven patients with STEMI participated CR and 81 patients as a control group were included to the study. The trained patients were grouped according to the presence and persistence of QRS fragmentation on the electrocardiogram (ECG) before and after CR. If the fragmentation was present on the ECG at the beginning of the CR but not on the ECG at the end of CR; the transient group, if the fQRS persists after CR; the persistent fQRS group. ECGs obtained from the control group were grouped according to the presence of a fQRS on ECG.
Results: Among the trained patients, 45 (46%) did not have a fQRS before CR, whereas 52 (54%) presented a fQRS before CR, which was persistent in 35 patients (the persistent fQRS group) and transient in 17 patients (the transient fQRS group). Among 81 patients included in the control group, fQRS was persistent in 41 patients. Presence of fQRS on the ECG was significantly decreased with CR and it is better in trained group than the control group (P=.034). There were not significant correlations with other characteristics, except hypertension.
Conclusion: The existence of the fQRS decreases after CR in patients with STEMI especially in hypertensive individuals, which may be related to improved electrical stability in the myocardium as a predictor of increase in survival and decrease in major cardiac events. |
| first_indexed | 2024-12-19T21:10:03Z |
| format | Article |
| id | doaj.art-dea59076ba6e42f49f7455fe6ff82354 |
| institution | Directory Open Access Journal |
| issn | 2008-5117 2008-6830 |
| language | English |
| last_indexed | 2024-12-19T21:10:03Z |
| publishDate | 2015-09-01 |
| publisher | Tabriz University of Medical Sciences |
| record_format | Article |
| series | Journal of Cardiovascular and Thoracic Research |
| spelling | doaj.art-dea59076ba6e42f49f7455fe6ff823542022-12-21T20:05:31ZengTabriz University of Medical SciencesJournal of Cardiovascular and Thoracic Research2008-51172008-68302015-09-01739610010.15171/jcvtr.2015.21JCVTR_2364_20150321202835Cardiac Rehabilitation Improves the QRS Fragmentation in Patients With ST Elevatıon Myocardial InfarctionMustafa Bulut0Rezzan Deniz Acar1Sunay Ergün2Çetin Geçmen3Mustafa Akçakoyun4Department of Cardiology, Kartal Kosuyolu Education and Research Hospital, Istanbul, Turkey Department of Cardiology, Kartal Kosuyolu Education and Research Hospital, Istanbul, Turkey Department of Physical Therapy and Rehabilitation, Kartal Kosuyolu Education and Research Hospital, Istanbul, Turkey Department of Cardiology, Kartal Kosuyolu Education and Research Hospital, Istanbul, Turkey Department of Cardiology, Kartal Kosuyolu Education and Research Hospital, Istanbul, Turkey Introduction: We aimed to evaluate the effect of exercise-based cardiac rehabilitation (CR) on the fragmented QRS (fQRS) in patients with ST elevation myocardial infarction (STEMI). Methods: Ninety-seven patients with STEMI participated CR and 81 patients as a control group were included to the study. The trained patients were grouped according to the presence and persistence of QRS fragmentation on the electrocardiogram (ECG) before and after CR. If the fragmentation was present on the ECG at the beginning of the CR but not on the ECG at the end of CR; the transient group, if the fQRS persists after CR; the persistent fQRS group. ECGs obtained from the control group were grouped according to the presence of a fQRS on ECG. Results: Among the trained patients, 45 (46%) did not have a fQRS before CR, whereas 52 (54%) presented a fQRS before CR, which was persistent in 35 patients (the persistent fQRS group) and transient in 17 patients (the transient fQRS group). Among 81 patients included in the control group, fQRS was persistent in 41 patients. Presence of fQRS on the ECG was significantly decreased with CR and it is better in trained group than the control group (P=.034). There were not significant correlations with other characteristics, except hypertension. Conclusion: The existence of the fQRS decreases after CR in patients with STEMI especially in hypertensive individuals, which may be related to improved electrical stability in the myocardium as a predictor of increase in survival and decrease in major cardiac events.http://journals.tbzmed.ac.ir/JCVTR/PDF/JCVTR-7-96.pdfCardiac RehabilitationQRS FragmentationMyocardial Electrical StabilityHypertension |
| spellingShingle | Mustafa Bulut Rezzan Deniz Acar Sunay Ergün Çetin Geçmen Mustafa Akçakoyun Cardiac Rehabilitation Improves the QRS Fragmentation in Patients With ST Elevatıon Myocardial Infarction Journal of Cardiovascular and Thoracic Research Cardiac Rehabilitation QRS Fragmentation Myocardial Electrical Stability Hypertension |
| title | Cardiac Rehabilitation Improves the QRS Fragmentation in Patients With ST Elevatıon Myocardial Infarction |
| title_full | Cardiac Rehabilitation Improves the QRS Fragmentation in Patients With ST Elevatıon Myocardial Infarction |
| title_fullStr | Cardiac Rehabilitation Improves the QRS Fragmentation in Patients With ST Elevatıon Myocardial Infarction |
| title_full_unstemmed | Cardiac Rehabilitation Improves the QRS Fragmentation in Patients With ST Elevatıon Myocardial Infarction |
| title_short | Cardiac Rehabilitation Improves the QRS Fragmentation in Patients With ST Elevatıon Myocardial Infarction |
| title_sort | cardiac rehabilitation improves the qrs fragmentation in patients with st elevation myocardial infarction |
| topic | Cardiac Rehabilitation QRS Fragmentation Myocardial Electrical Stability Hypertension |
| url | http://journals.tbzmed.ac.ir/JCVTR/PDF/JCVTR-7-96.pdf |
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