Resultados clínicos de la resincronización ventricular en pacientes con insuficiencia cardíaca severa
Intraventricular resynchronization with pacemakers is a promising therapy for patients with refractory cardiac failure and intraventricular conductions delay. However its long term effects are not well known. Aim: To report the results of this therapy in patients with cardiac failure. Patients and m...
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Sociedad Médica de Santiago
2003
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oai:scielo:S0034-988720030010000012004-12-07Resultados clínicos de la resincronización ventricular en pacientes con insuficiencia cardíaca severaAsenjo,RenéZapata,MarioAramburú,IvonneMorris,RaimundoCereceda,MauricioBrugere,SolangeAguayo,RubénRíos,JhonnyToro,CarlosHassi,MarioGonzález,PatricioCannessa,JoséOyarzún,RodulfoOrtiz,MarioAvalos,VivianaMorales,PatriciaNicola,MartínOyonarte,MiguelAbufhele,Alejandro Cardiac surgical procedures Cardiac pacing artificial Pacemaker artificial Intraventricular resynchronization with pacemakers is a promising therapy for patients with refractory cardiac failure and intraventricular conductions delay. However its long term effects are not well known. Aim: To report the results of this therapy in patients with cardiac failure. Patients and methods: Fourteen patients (11 male), whose mean age was 68 years, with a severe and refractory cardiac failure, have been treated in our unit using intraventricular resynchronization with pacemakers. Eight had a coronary heart disease and six a dilated myocardiopathy. The pacemaker was implanted transvenously, with conventional stimulation in atrium and right ventricle. The left ventricle was stimulated through an epicardial vein, accessed through the coronary sinus. Results: In one patient the high thresholds did not allow a left ventricular stimulation. In the other 13 patients, a clinical improvement was observed in 11 (85%), that has been sustained for a mean of 8.2 months. The ejection fraction improved form 23.5 to 32.4% (p <0.001), the 6 min walking test improved from 347 to 437 m (p=0.003) and the functional capacity changes from 3.3 to 2.7 (p <0.001). Three patients died during follow up. One was the patient in whom the stimulation failed and two had a sudden death. No complications of the procedure were observed. Conclusions: In this series, intraventricular resynchronization with pacemakers was effective in 11 of 13 patients, improving functional capacity and ejection fraction. Sudden death could be avoided adding a defibrillator to the pacemaker system (Rev Méd Chile 2003; 131: 1101-10)info:eu-repo/semantics/openAccessSociedad Médica de SantiagoRevista médica de Chile v.131 n.10 20032003-10-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872003001000001es10.4067/S0034-98872003001000001 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
Spanish / Castilian |
| topic |
Cardiac surgical procedures Cardiac pacing artificial Pacemaker artificial |
| spellingShingle |
Cardiac surgical procedures Cardiac pacing artificial Pacemaker artificial Asenjo,René Zapata,Mario Aramburú,Ivonne Morris,Raimundo Cereceda,Mauricio Brugere,Solange Aguayo,Rubén Ríos,Jhonny Toro,Carlos Hassi,Mario González,Patricio Cannessa,José Oyarzún,Rodulfo Ortiz,Mario Avalos,Viviana Morales,Patricia Nicola,Martín Oyonarte,Miguel Abufhele,Alejandro Resultados clínicos de la resincronización ventricular en pacientes con insuficiencia cardíaca severa |
| description |
Intraventricular resynchronization with pacemakers is a promising therapy for patients with refractory cardiac failure and intraventricular conductions delay. However its long term effects are not well known. Aim: To report the results of this therapy in patients with cardiac failure. Patients and methods: Fourteen patients (11 male), whose mean age was 68 years, with a severe and refractory cardiac failure, have been treated in our unit using intraventricular resynchronization with pacemakers. Eight had a coronary heart disease and six a dilated myocardiopathy. The pacemaker was implanted transvenously, with conventional stimulation in atrium and right ventricle. The left ventricle was stimulated through an epicardial vein, accessed through the coronary sinus. Results: In one patient the high thresholds did not allow a left ventricular stimulation. In the other 13 patients, a clinical improvement was observed in 11 (85%), that has been sustained for a mean of 8.2 months. The ejection fraction improved form 23.5 to 32.4% (p <0.001), the 6 min walking test improved from 347 to 437 m (p=0.003) and the functional capacity changes from 3.3 to 2.7 (p <0.001). Three patients died during follow up. One was the patient in whom the stimulation failed and two had a sudden death. No complications of the procedure were observed. Conclusions: In this series, intraventricular resynchronization with pacemakers was effective in 11 of 13 patients, improving functional capacity and ejection fraction. Sudden death could be avoided adding a defibrillator to the pacemaker system (Rev Méd Chile 2003; 131: 1101-10) |
| author |
Asenjo,René Zapata,Mario Aramburú,Ivonne Morris,Raimundo Cereceda,Mauricio Brugere,Solange Aguayo,Rubén Ríos,Jhonny Toro,Carlos Hassi,Mario González,Patricio Cannessa,José Oyarzún,Rodulfo Ortiz,Mario Avalos,Viviana Morales,Patricia Nicola,Martín Oyonarte,Miguel Abufhele,Alejandro |
| author_facet |
Asenjo,René Zapata,Mario Aramburú,Ivonne Morris,Raimundo Cereceda,Mauricio Brugere,Solange Aguayo,Rubén Ríos,Jhonny Toro,Carlos Hassi,Mario González,Patricio Cannessa,José Oyarzún,Rodulfo Ortiz,Mario Avalos,Viviana Morales,Patricia Nicola,Martín Oyonarte,Miguel Abufhele,Alejandro |
| author_sort |
Asenjo,René |
| title |
Resultados clínicos de la resincronización ventricular en pacientes con insuficiencia cardíaca severa |
| title_short |
Resultados clínicos de la resincronización ventricular en pacientes con insuficiencia cardíaca severa |
| title_full |
Resultados clínicos de la resincronización ventricular en pacientes con insuficiencia cardíaca severa |
| title_fullStr |
Resultados clínicos de la resincronización ventricular en pacientes con insuficiencia cardíaca severa |
| title_full_unstemmed |
Resultados clínicos de la resincronización ventricular en pacientes con insuficiencia cardíaca severa |
| title_sort |
resultados clínicos de la resincronización ventricular en pacientes con insuficiencia cardíaca severa |
| publisher |
Sociedad Médica de Santiago |
| publishDate |
2003 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872003001000001 |
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