1994
DOI: 10.1161/01.cir.90.6.2731
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Long-term results of dual-chamber (DDD) pacing in obstructive hypertrophic cardiomyopathy. Evidence for progressive symptomatic and hemodynamic improvement and reduction of left ventricular hypertrophy.

Abstract: Background We previously reported that 6 to 12 weeks of dual-chamber (DDD) pacing results in clinical and hemodynamic improvement in obstructive hypertrophic cardiomyopathy (HCM). This study examines the long-term results of DDD pacing in obstructive HCM.Methods and Results DDD devices were implanted in 84

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Cited by 320 publications
(149 citation statements)
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“…Several early reports suggest that dual-chamber pacing is associated with the improvement of symptoms and reduction in the outflow tract gradient. 34 Unconfirmed reports also indicate that pacing may lead to ventricular remodeling and regression of left ventricular hypertrophy. On the other hand, recent trials have reported that subjective improvement in symptoms during pacing occurs with little objective evidence of an increase in exercise capacity.…”
Section: Discussionmentioning
confidence: 98%
“…Several early reports suggest that dual-chamber pacing is associated with the improvement of symptoms and reduction in the outflow tract gradient. 34 Unconfirmed reports also indicate that pacing may lead to ventricular remodeling and regression of left ventricular hypertrophy. On the other hand, recent trials have reported that subjective improvement in symptoms during pacing occurs with little objective evidence of an increase in exercise capacity.…”
Section: Discussionmentioning
confidence: 98%
“…Embora ainda não haja completo entendimento de seu mecanismo, e seus efeitos permaneçam em fase de investigação, o implante de marcapasso bicameral constitui méto-do promissor em pacientes com a forma obstrutiva da cardiomiopatia hipertrófica [13][14][15][16] . Aparentemente, reduz-se o gradiente sistólico em proporção ao alívio sintomático, e também se produz melhora das propriedades diastólicas, inclusive por certo grau de involução da hipertrofia ventricular 15,16 .…”
Section: Discussionunclassified
“…Aparentemente, reduz-se o gradiente sistólico em proporção ao alívio sintomático, e também se produz melhora das propriedades diastólicas, inclusive por certo grau de involução da hipertrofia ventricular 15,16 .…”
Section: Discussionunclassified
“…Provides an option when the anatomy of the septal artery is not suitable for alcohol ablation Ventricular pacing from the right ventricular apex [37,38] Pacing the right side of the interventricular septum Theoretically, creates paradoxical motion of the interventricular septum, pulling it away from the outflow tract during early systole, creating less systolic anterior motion of the mitral valve, and thereby decreasing outflow obstruction.…”
Section: Endomyocardialmentioning
confidence: 99%