© 2003 by European Society of Cardiology
Atrial fibrillation and cardiac resynchronization therapy: the MASCOT study
aInstitute of Internal Medicine and Cardiology, University of Florence Florence, Italy; bCardiovascular Institute, University of Bari Bari, Italy
Atrial fibrillation (AF) and congestive heart failure (CHF) share several characteristics and often coexist in the same patient. Both are responsible for significant morbidity and mortality, are increasing in prevalence, and are major sources of health expenditure. The Management of Atrial fibrillation Suppression in AF-HF COmorbidity Therapy (MASCOT) study is a European, single-blind, prospective, controlled, multicentre, randomized clinical trial designed to examine whether adding the AF SuppressionTM Algorithm to cardiac resynchronization therapy (CRT) improves the prognosis of patients with CHF. The patients will be randomly assigned to a CRT-only group, with the AF SuppressionTM algorithm programmed OFF (control group), versus a CRT + AF SuppressionTM group, with the algorithm programmed ON (treatment group). The primary study endpoint is development of permanent AF, and secondary endpoints are safety of the AF SuppressionTM algorithm, and evolution of multiple clinical variables over 24 months of follow-up. CRT combined with a refined atrial tachyarrhythmia prevention pacing algorithm may represent a major advance in the management of AF and CHF by electrical stimulation.
Key Words: atrial fibrillation, cardiac resynchronization therapy, atrial pacing, overdrive pacing
*Corresponding author. Tel.: +39 055 4277634; fax: +39 055 4378368. E-mail address: elettrofisiologia{at}dac.unifi.it (L. Padeletti).