PMID- 20361487 OWN - NLM STAT- MEDLINE DCOM- 20100603 LR - 20100405 IS - 1405-9940 (Print) IS - 1665-1731 (Linking) VI - 79 Suppl 2 DP - 2009 Dec TI - [Clinical benefit in cardiac resynchronization]. PG - 71-4 AB - Despite the improvement in pharmacologic treatment of heart failure, many patients continue to have severe persistent symptoms, and their prognosis remains poor. One of the most recent advances in heart failure management is the concept of cardiac resynchronization therapy (CRT). Large clinical trials have demonstrated morbidity and mortality benefits of CRT in patients with moderate to severe drug refractory heart failure (New York Heart Association [NYHA] functional class III or IV), and ejection fraction < or = 35% with QRS duration > or = 120 ms. FAU - Guevara-Valdivia, Milton E AU - Guevara-Valdivia ME AD - Servicio de Electrofisiologia y Estimulacion Cardiaca, UMAE, Hospital de Especialidades Dr. Antonio Fraga Mouret, CMN La Raza. IMSS, Mexico, D. F. mylton@yahoo.com LA - spa PT - English Abstract PT - Journal Article TT - Beneficios clinicos de la resincronizacion cardiaca. PL - Mexico TA - Arch Cardiol Mex JT - Archivos de cardiologia de Mexico JID - 101126728 SB - IM MH - *Cardiac Pacing, Artificial MH - Heart Failure/*therapy MH - Humans MH - Treatment Outcome EDAT- 2010/04/07 06:00 MHDA- 2010/06/04 06:00 CRDT- 2010/04/06 06:00 PHST- 2010/04/06 06:00 [entrez] PHST- 2010/04/07 06:00 [pubmed] PHST- 2010/06/04 06:00 [medline] PST - ppublish SO - Arch Cardiol Mex. 2009 Dec;79 Suppl 2:71-4.