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Cited by 841

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Effectiveness and Limitations of β-Blocker Therapy in Congenital Long-QT Syndrome

Open access
Moss, Arthur J., Zareba, Wojciech, Hall, W. Jackson, Schwartz, Peter J., Crampton, Richard S., Benhorin, Jesaia, Vincent, G. Michael, Locati, Emanuela H., Priori, Silvia G., Napolitano, Carlo, Medina, Aharon, Zhang, Li, Robinson, Jennifer L., Timothy, Katherine, Towbin, Jeffrey A., Andrews, Mark L.·2000·Circulation

Abstract

Background —β-blockers are routinely prescribed in congenital long-QT syndrome (LQTS), but the effectiveness and limitations of β-blockers in this disorder have not been evaluated. Methods and Results —The study population comprised 869 LQTS patients treated with β-blockers. Effectiveness of β-blockers was analyzed during matched periods before and after starting β-blocker therapy, and by survivorship methods to determine factors associated with cardiac events while on prescribed β-blockers. After initiation of β-blockers, there was a significant ( P <0.001) reduction in the rate of cardiac events in probands (0.97±1.42 to 0.31±0.86 events per year) and in affected family members (0.26±0.84 to 0.15±0.69 events per year) during 5-year matched periods. On-therapy survivorship analyses revealed that patients with cardiac symptoms before β-blockers (n=598) had a hazard ratio of 5.8 (95% CI, 3.7 to 9.1) for recurrent cardiac events (syncope, aborted cardiac arrest, or death) during β-blocker therapy compared with asymptomatic patients; 32% of these symptomatic patients will have another cardiac event within 5 years while on prescribed β-blockers. Patients with a history of aborted cardiac arrest before starting β-blockers (n=113) had a hazard ratio of 12.9 (95% CI, 4.7 to 35.5) for aborted cardiac arrest or death while on prescribed β-blockers compared with asymptomatic patients; 14% of these patients will have another arrest (aborted or fatal) within 5 years on β-blockers. Conclusions —β-blockers are associated with a significant reduction in cardiac events in LQTS patients. However, syncope, aborted cardiac arrest, and LQTS-related death continue to occur while patients are on prescribed β-blockers, particularly in those who were symptomatic before starting this therapy.

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Crossref · 10.1161/01.cir.101.6.616

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Metadata

Authors
Moss, A. J., Zareba, W., Hall, W. J., Schwartz, P. J., Crampton, R. S., Benhorin, J., Vincent, G. M., Locati, E. H., Priori, S. G., Napolitano, C., Medina, A., Zhang, L., Robinson, J. L., Timothy, K., Towbin, J. A., & Andrews, M. L.
Venue
Circulation
Published
2000-02-15
Volume
101
Issue
6
Pages
616-623
ISSN
  • 0009-7322 (ISSN-L)
  • 1524-4539
OpenAlex
W2091453055
Cited by
841
References
1
FWCI
32.43
Type
journal article
Language
en
Open access
bronze

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