Document Detail

Effects of percutaneous transluminal coronary angioplasty on late potentials and high frequency mid-QRS potentials.
MedLine Citation:
PMID:  7987878     Owner:  NLM     Status:  MEDLINE    
The high frequency mid-QRS potentials and late potentials are important in coronary artery disease because they are related to the extent of ischemia and prognosis. In this study, the effects of successful percutaneous transluminal coronary angioplasty (PTCA) on these potentials were evaluated. Twenty-four patients with coronary artery disease (aged 34-67 years, 5 women, 19 men) were examined. Eight of these patients had a history of myocardial infarction (4 anterior, 3 inferior, 1 anterior and inferior). Signal averaged ECG was recorded at 40- to 250-Hz frequency ranges for late potentials and 150- to 250-Hz frequency ranges for mid-QRS potentials before PTCA, and they were repeated 1 month later. The QRS duration (107.7 +/- 9.8 to 105.3 +/- 9.3 ms, p < 0.0001) root-mean-square voltage (39.4 +/- 20.1 to 47.7 +/- 22.2 microV, p < 0.00001) and low amplitude signal duration (30.7 +/- 9.9 to 27.7 +/- 9.3 ms, p < 0.001) showed significant changes in 40- to 250-Hz ranges before and after PTCA. The same results were also obtained in the 150- to 250-Hz frequency ranges: the QRS duration decreased (90.9 +/- 9.8 to 86.5 +/- 9.1 ms, p < 0.005) and the root-mean-square voltage increased (5.5 +/- 1.6 to 6.1 +/- 1.8 microV, p < 0.00001). Thus, successful PTCA causes improvement in late potential parameters, so the risk of malign arrhythmia that affects the prognosis can be reduced. Additionally, the increase in high frequency mid-QRS potentials shows the decrease in the ischemia after PTCA.
B Berkalp; D Oral; N Caglar; K Omurlu; G Pamir; A Alpman; C Erol; C Kervancioglu; G Akgun; T Akyol
Related Documents :
9732878 - Incidence, consequences, and risk factors of early reocclusion after primary and/or res...
10659558 - Percutaneous transluminal coronary angioplasty in king chulalongkorn memorial hospital:...
7821318 - Changes of qrs axis in transient myocardial ischaemia induced by percutaneous translumi...
14578618 - Cxcr3 chemokine receptor-plasma ip10 interaction in patients with coronary artery disease.
20890008 - A patient with commotio cordis successfully resuscitated by bystander cardiopulmonary r...
18191738 - Prediction of cardiac death in hemodialysis patients by myocardial fatty acid imaging.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Cardiology     Volume:  85     ISSN:  0008-6312     ISO Abbreviation:  Cardiology     Publication Date:  1994  
Date Detail:
Created Date:  1995-01-10     Completed Date:  1995-01-10     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  1266406     Medline TA:  Cardiology     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  216-21     Citation Subset:  IM    
Department of Cardiology, Ankara University Faculty of Medicine, Turkey.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Angioplasty, Transluminal, Percutaneous Coronary*
Coronary Disease / physiopathology,  therapy
Middle Aged

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Efficacy of pulmonary artery banding in the prevention of pulmonary vascular obstructive disease.
Next Document:  Total coronary artery occlusion late after successful coronary angioplasty of moderately severe lesi...