Catheter Ablation of Ventricular Tachycardia in Remote Myocardial Infarction

Autor:	Corrado Carbucicchio, Hans Kottkamp, Anja Dorszewski, Gerhard Hindricks, Petra Schirdewahn, Ulrike Wetzel, Jin Hong Gerds-Li, Richard Kobza
Rok vydání:	2003
Předmět:	Male Tachycardia medicine.medical_specialty medicine.medical_treatment Myocardial Infarction Catheter ablation Ventricular tachycardia Disease-Free Survival Physiology (medical) Internal medicine medicine Humans Sinus rhythm Myocardial infarction Aged Intraoperative Care business.industry Body Surface Potential Mapping Middle Aged medicine.disease Ablation Treatment Outcome Surgery Computer-Assisted Catheter Ablation Tachycardia Ventricular Cardiology Myocardial infarction complications Female Myocardial infarction diagnosis medicine.symptom Cardiology and Cardiovascular Medicine business
Zdroj:	Journal of Cardiovascular Electrophysiology. 14:675-681
ISSN:	1045-3873
Popis:	Introduction: The aim of this study was to describe the arrhythmogenic substrate in postinfarction patients with ventricular tachycardia (VT) guiding the placement of individual strategic linear lesions transecting all potential isthmuses using target area maps with limited mapping points to allow short procedure times. Methods and Results: In 28 patients with pleomorphic, unstable, and/or incessant VT, electroanatomic voltage mapping was performed in conjunction with limited sinus rhythm mapping, pace mapping, and activation mapping. Radiofrequency (RF) energy was applied directly within the low-voltage areas of the chronically infarcted areas or in the border zone. Ablation lines typically were perpendicular to the course of the presumed central common pathways. The maps consisted of 63 ± 30 mapping points. An average lesion line length of 46 ± 21 mm was placed with 17 ± 7 RF pulses. Twenty-two (79%) of the 28 patients were rendered completely noninducible at the end of the procedure. Procedure time measured 134 ± 41 minutes. No major complications were observed. Six (27%) of 22 patients who were rendered completely noninducible experienced VT recurrence during follow-up versus 4 (67%) of 6 patients who were still inducible after ablation (P = 0.06). Conclusion: Individually tailored substrate description guiding the placement of linear lesion lines transecting potential isthmuses rendered 80% of the patients completely noninducible. The construction of regional target area maps allowed short procedure times, with a resulting low incidence of complications in these critically ill patients. (J Cardiovasc Electrophysiol, Vol. 14, pp. 675-681, July 2003)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b336de8c74d885a830d18ee88d53b7a https://doi.org/10.1046/j.1540-8167.2003.02541.x Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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