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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
5
|
| pubmed:dateCreated |
1998-4-7
|
| pubmed:abstractText |
The incidence of permanent atrioventricular conduction defects (CDs) caused by coronary artery bypass grafting (CABG) varies from 5% to 43% if cold crystalloid or blood cardioplegia is used for myocardial preservation. However, the long-term effects of CDs on clinical outcome are not well known. In this study we compared the outcome of 52 patients with permanent CABG-associated CDs (CD+) to 47 patients without CDs (CD-) after a 3-year follow-up. Recovery of CDs was found in 2 patients during the follow-up. There were no significant differences between groups in late mortality, cardiac or neurologic events, or capability to work. Although exercise capacity was similar, the exercise-limiting symptom more often was chest pain or dyspnea in the CD+ group than in the CD- group (p = 0.001). Left ventricular ejection fractions at rest and at 50-W workload level were lower in the CD+ group (p = 0.03 to 0.05). In addition, CD+ patients with left bundle branch block or cardiac pacemaker had significantly lower ejection fraction at maximal workload level than patients without CDs (p = 0.03). No significant differences were observed between the groups in the potential risk for ventricular arrhythmias according to signal-averaged electrocardiograms. In conclusion, the clinical outcome of patients with CDs after CABG operations is almost comparable to those without CDs during a 3-year follow-up. However, patients with CDs have lower left ventricular systolic function and more often have chest pain or dyspnea as the exercise-limiting symptom than patients without CDs.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
AIM
|
| pubmed:status |
MEDLINE
|
| pubmed:month |
Mar
|
| pubmed:issn |
0002-9149
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:day |
1
|
| pubmed:volume |
81
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
558-63
|
| pubmed:dateRevised |
2007-11-15
|
| pubmed:meshHeading |
pubmed-meshheading:9514449-Aged,
pubmed-meshheading:9514449-Arrhythmias, Cardiac,
pubmed-meshheading:9514449-Coronary Artery Bypass,
pubmed-meshheading:9514449-Electrocardiography,
pubmed-meshheading:9514449-Exercise Test,
pubmed-meshheading:9514449-Female,
pubmed-meshheading:9514449-Gated Blood-Pool Imaging,
pubmed-meshheading:9514449-Humans,
pubmed-meshheading:9514449-Male,
pubmed-meshheading:9514449-Middle Aged,
pubmed-meshheading:9514449-Prospective Studies,
pubmed-meshheading:9514449-Signal Processing, Computer-Assisted,
pubmed-meshheading:9514449-Ventricular Function, Left
|
| pubmed:year |
1998
|
| pubmed:articleTitle |
Significance of coronary artery bypass grafting-associated conduction defects.
|
| pubmed:affiliation |
Department of Surgery, Kuopio University Hospital, Finland.
|
| pubmed:publicationType |
Journal Article
|