Linked Life Data

19444402

Source:http://linkedlifedata.com/resource/pubmed/id/19444402

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2009-5-15
pubmed:abstractText
The majority of ventricular tachycardias (VTs) occurs in patients with structural heart disease, predominantly coronary heart disease. Implantable cardioverter defibrillators (ICDs) are first-line therapy in patients with VT and structural heart disease. In patients who receive an ICD after a spontaneous sustained VT, recurrent VT episodes or an electrical storm are major problems. In addition, in patients with an ICD implanted for primary prevention of sudden cardiac death, 20% will experience at least one VT episode within 3-5 years after ICD implantation. Catheter ablation has a high acute success rate in eliminating clinical VT. However, several factors make catheter ablation of VT more difficult than ablation of supraventricular tachyarrhythmias. (1) The infarct region is often large. (2) The induced VT can be unstable or hemodynamically only poorly tolerated and therefore "unmappable". (3) Though most commonly located in the subendocardium, the critical VT zone can occasionally be epicardial or intramural in location. (4) In many cases, several reentrant circuits may coexist making ablation of a single form of VT a palliative procedure which does not obviate the risk of sudden death. Thus, catheter ablation of sustained VT in the setting of structural heart disease can only be considered an adjunctive therapy which, in general, will require ICD therapy. Numerous "modern" mapping technologies have been developed, which have increased success rates of catheter ablation of VT in patients with and without structural heart disease. The aim of the present article is to review current three-dimensional mapping systems in comparison to conventional mapping and to describe a reasonable, tailored approach for the individual patient with VT.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1615-6692
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
34
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
187-96
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Catheter ablation of ventricular tachycardia. From indication to three-dimensional mapping technology.
pubmed:affiliation
Medizinischen Klinik und Poliklinik C, Universitätsklinikum Münster, Albert-Schweitzer-Strasse 33, 48149 Münster, Germany. l.eckardt@uni-muenster.de
pubmed:publicationType
Journal Article, Review