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Non-sustained ventricular tachycardia in hypertrophic cardiomyopathy

an independent marker of sudden death risk in young patients

Lorenzo Monserrat, MD, Perry M. Elliott, MD, MRCP, FACC^*,*, Juan R. Gimeno, MD^*, Sanjay Sharma, BSc, MRCP^*, Manuel Penas-Lado, MD and William J. McKenna, MD, FACC, FESC, FRCP^*

^* Department of Cardiological Sciences, St. George's Hospital Medical School, London, United Kingdom
Service of Cardiology, Juan Canalejo Hospital, A Coruña, Spain

View larger version (22K): [in a new window]   Figure 1 Relation of age to the presence of non-sustained ventricular tachycardia (NSVT) during Holter monitoring. The incidence of NSVT increases with age (p = 0.008).

View larger version (20K): [in a new window]   Figure 2 Number of runs of non-sustained ventricular tachycardia (NSVT) in 48 h in 104 patients with hypertrophic cardiomyopathy and NSVT.

View larger version (14K): [in a new window]   Figure 3 Kaplan-Meier survival curves for sudden death in patients older (A) and younger (B) than 30 with and without non-sustained ventricular tachycardia (NSVT). Dotted lines = yes; solid lines = no.

View larger version (15K): [in a new window]   Figure 4 Kaplan-Meier survival curves for all-cause mortality, heart transplantation, or appropriate implantable cardioverter defibrillator discharge in patients older (A) and younger (B) than 30 with and without non-sustained ventricular tachycardia (NSVT). Dotted lines = yes; solid lines = no.