ArticleBMJ case reports2020
The use of ivabradine in a patient with inappropriate sinus tachycardia and cardiomyopathy due to limb girdle muscular dystrophy type 2I.
Article in BMJ case reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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4 authors at 3 institutions in 2 countries.
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Abstract
Muscular dystrophies are a heterogeneous group of disorders that commonly involve cardiac and skeletal muscle. Comprehensive guidelines for the management of cardiac failure and arrhythmias are available. However, the studies from which their recommendations are derived did not include any patients with muscular dystrophy. Some medications (eg, betablockers) may have significant side effects in this cohort. In some situations the use of agents with unique mechanisms of action such as ivabradine (a 'funny' channel inhibitor) may be more appropriate. Use of ivabradine has not previously been reported in limb girdle muscular dystrophy (LGMD). We describe the course of a patient with LGMD type 2I, cardiomyopathy and inappropriate sinus tachycardia treated with ivabradine. As advances in respiratory support have improved the outcomes of patients with muscular dystrophy; the prognostic significance of cardiac disease has increased. Ivabradine is tolerated and may reduce symptoms, morbidity and mortality in this cohort.
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