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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1986-9-26
pubmed:abstractText
Antiarrhythmic therapy is known to be associated with a significant risk of adverse cardiac reactions, including a proarrhythmic response. This study assessed in 1,330 patients followed up for 292 +/- 393 days the predictive value for cardiovascular safety of a system by which patients were classified according to ventricular arrhythmias on entry, presence or absence of organic heart disease and drug dose for flecainide acetate. Baseline arrhythmia subgroups included patients with premature ventricular complexes only, nonsustained ventricular tachycardia, and sustained ventricular tachycardia. Proarrhythmic events occurred in 6.8% of patients overall and were serious in 2.3% and lethal in 1.0%. However, proarrhythmia was highly dependent on arrhythmia class on entry: serious nonlethal proarrhythmic events occurred in 6.6% of patients with sustained ventricular tachycardia, only 0.9% with nonsustained ventricular tachycardia and 0% with premature ventricular complexes (p less than 0.01). Proarrhythmic death occurred in 3.1% of patients with sustained ventricular tachycardia, 0.2% with nonsustained ventricular tachycardia and 0% with premature ventricular complexes only (p less than 0.01). Proarrhythmia was also influenced by the presence of structural heart disease: serious nonlethal proarrhythmia occurred in 2.6% of patients with versus 0.4% of those without organic heart disease, and death occurred in 1.2 versus 0%, respectively. These adverse events were also dependent on dosing regimen. Flecainide caused premature discontinuation due to new or worsened heart failure in 1.4% of patients, all with underlying organic heart disease; however, heart failure was not clearly related to dose or type of arrhythmia. Symptomatic conduction disturbances occurred in 2.2%, and were predicted by preexistent sinus node disease but not by other baseline features.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0735-1097
pubmed:author
pubmed:issnType
Print
pubmed:volume
8
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
607-15
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Classification by type of ventricular arrhythmia predicts frequency of adverse cardiac events from flecainide.
pubmed:publicationType
Journal Article