NDLI: Radiofrequency catheter ablation of premature ventricular contractions originating in the right ventricular outflow tract.

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Radiofrequency catheter ablation of premature ventricular contractions originating in the right ventricular outflow tract.

Content Provider	Semantic Scholar
Author	Darrieux, Francisco Carlos Costa Scanavacca, Mauricio Ibrahim Hachul, Denise Tessariol Melo, Sissy Lara De D'Avilla, Andre B. Gruppi, César J. Moffa, Paulo Jorge Sosa, Eduardo Argentino
Copyright Year	2007
Abstract	OBJECTIVES To evaluate if radiofrequency catheter ablation is an effective procedure for the treatment of right ventricular outflow tract premature ventricular contractions (RVOT-PVC) and ascertain if it results in an improvement of symptoms. METHODS A prospective study with 30 consecutive patients (mean age 40 +/- 13 years, 25 females), with no apparent structural cardiopathy, with very frequent (mean density of 1,263 +/- 593/h) RVOT-PVC, symptomatic for more than one year (mean = 74 months) and resistant to antiarrhythmic drugs (3 +/- 1.7, including beta-blockers), who underwent radiofrequency catheter ablation. RESULTS After the first procedure, there were 23 initial successful cases (76.6%) and 7 initial failures (23.4%). Four patients experienced relapses, two of whom did not undergo the second procedure. The second procedure was carried out in 9 patients (7 initial failures and 2 relapses), and there was success in 5 additional patients, one of them by epicardial access. The final success rate was 80% (24/30), and there were no major complications. After a mean follow-up of 14 +/- 6 months, in the successful group there was a reduction greater than 90% in density of premature ventricular contractions (PVC) (24/24; p<0.0001) and a resulting absence of symptoms in the majority of patients (23/24; p<0.001). CONCLUSION Radiofrequency catheter ablation is a safe and effective treatment for patients with persistent and symptomatic PVC with RVOT morphology.
File Format	PDF HTM / HTML
PubMed reference number	17533466
Journal	Medline
Volume Number	88
Issue Number	3
Alternate Webpage(s)	http://www.scielo.br/pdf/abc/v88n3/en_a03v88n3.pdf
Alternate Webpage(s)	http://www.arquivosonline.com.br/english/2007/8803/pdf/i8803003.pdf
Journal	Arquivos brasileiros de cardiologia
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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