Right ventricular bifocal stimulation in the treatment of dilated cardiomyopathy with heart failure
| Autor: | Juan Carlos Pachón Mateos, Eusebio Ramos dos Santos Fº, Adib D Jatene, José Carlos Pachón Mateos, Remy Nelson Albornoz, Maria Zélia Cunha Pachón, José Eduardo Moraes Rêgo Sousa, Marco Aurélio Dias da Silva, Paulo P Paulista, Enrique Indalécio Pachón Mateos, Vera Márcia Gimenez, Paulo de Tarso Jorge Medeiros |
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| Jazyk: | angličtina |
| Rok vydání: | 1999 |
| Předmět: |
Cardiac output
medicine.medical_specialty lcsh:Diseases of the circulatory (Cardiovascular) system Ejection fraction business.industry Cardiomyopathy Dilated cardiomyopathy medicine.disease pacemaker QRS complex medicine.anatomical_structure lcsh:RC666-701 Anesthesia Internal medicine Heart failure medicine Cardiology cardiovascular system Interventricular septum cardiovascular diseases Cardiology and Cardiovascular Medicine business multisite stimulation and heart failure Coronary sinus |
| Zdroj: | Arquivos Brasileiros de Cardiologia v.73 n.6 1999 Arquivos Brasileiros de Cardiologia Sociedade Brasileira de Cardiologia (SBC) instacron:SBC Arquivos Brasileiros de Cardiologia, Volume: 73, Issue: 6, Pages: 492-498, Published: DEC 1999 Arquivos Brasileiros de Cardiologia, Vol 73, Iss 6, Pp 492-498 (1999) |
| Popis: | OBJECTIVE: To describe a new more efficient method of endocardial cardiac stimulation, which produces a narrower QRS without using the coronary sinus or cardiac veins. METHODS: We studied 5 patients with severe dilated cardiomyopathy, chronic atrial fibrillation and AV block, who underwent definitive endocardial pacemaker implantation, with 2 leads, in the RV, one in the apex and the other in the interventricular septum (sub pulmonary), connected, respectively, to ventricular and atrial bicameral pacemaker outputs. Using Doppler echocardiography, we compared, in the same patient, conventional (VVI), high septal ("AAI") and bifocal ("DDT" with AV interval ~ 0) stimulation. RESULTS: The RV bifocal stimulation had the best results with an increase in ejection fraction and cardiac output and reduction in QRS duration, mitral regurgitation and in the left atrium area (p |
| Databáze: | OpenAIRE |
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