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The independent relationship of systemic inflammation with fragmented QRS complexes in patients with acute coronary syndromes.
MedLine Citation:
PMID:  22870078     Owner:  NLM     Status:  PubMed-not-MEDLINE    
BACKGROUND AND OBJECTIVES: QRS complex fragmentations are frequently seen on routine electrocardiograms with narrow or wide QRS complex. Fragmented QRS complex (fQRS) is associated with increased morbidity and mortality, sudden cardiac death and recurrent cardiovascular events. In this study, we aimed to interrogate the relationship of systemic inflammation with the presence of fQRS in patients with acute coronary syndromes (ACS).
SUBJECTS AND METHODS: Two-hundred and twenty eligible patients with ACS that underwent coronary angiography were enrolled consecutively in this study. Patients with significant organic valve disease and those with any QRS morphology that had a QRS duration ≥120 ms as well as patients with permanent pacemakers were excluded from this study.
RESULTS: Patients with fQRS were of a higher age (p=0.02), had increased C-reactive protein (CRP) levels (p<0.001), prolonged QRS time (p<0.001), extent of coronary artery disease (CAD) (p<0.001), creatine kinase-MB (CK-MB) levels (p=0.006) and Q wave on admission electrocardiography (p<0.001) in comparison to patients with non-fragmented QRS. When we performed multiple logistic regression analysis, fQRS was found to be related to increased CRP levels {odds ratio (OR): 1.2, 95% confidence interval (CI): 1.045-1.316, p=0.007}, QRS duration (OR: 1.1, 95% CI: 1.033-1.098, p<0.001), extent of CAD (OR: 1.5, 95% CI: 1.023-2.144, p=0.037), Q wave (OR: 2.2, 95% CI: 1.084-4.598, p=0.03) and CK-MB levels (OR: 1.0, 95% CI: 1.001-1.037, p=0.04) independently.
CONCLUSION: In our study, we found that fQRS was independently related to increased CRP. Fragmented QRS that may result as an end effect of inflammation at cellular level can represent increased cardiac risk by different causative mechanisms in patients with ACS.
Mustafa Çetin; Sinan Altan Kocaman; Turan Erdoğan; Aytun Canga; Murtaza Emre Durakoğlugil; Ömer Şatıroğlu; Özgür Akgül; Tuncay Kırış; Yüksel Ciçek; Barış Yaylak; Sıtkı Doğan; Ismail Şahin; Mehmet Bostan
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Publication Detail:
Type:  Journal Article     Date:  2012-07-26
Journal Detail:
Title:  Korean circulation journal     Volume:  42     ISSN:  1738-5555     ISO Abbreviation:  Korean Circ J     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-08-07     Completed Date:  2012-08-08     Revised Date:  2013-05-30    
Medline Journal Info:
Nlm Unique ID:  101247141     Medline TA:  Korean Circ J     Country:  Korea (South)    
Other Details:
Languages:  eng     Pagination:  449-57     Citation Subset:  -    
Rize Education and Research Hospital, Department of Cardiology, Rize, Turkey.
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