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. 2019 Jan 8:22:92-95.
doi: 10.1016/j.ijcha.2018.12.011. eCollection 2019 Mar.

Prognostic role of non-sustained ventricular tachycardia detected with remote interrogation in a pacemaker population

Stefano Poli  1 , Domenico Facchin  1 , Francesca Rizzetto  1 , Luca Rebellato  1 , Elisabetta Daleffe  1 , Mauro Toniolo  1 , Antonella Miconi  1 , Alessandro Altinier  1 , Corrado Lanera  2 , Stefano Indrigo  3 , Jennifer Comisso  3 , Alessandro Proclemer  1
Affiliations

Prognostic role of non-sustained ventricular tachycardia detected with remote interrogation in a pacemaker population

Stefano Poli et al. Int J Cardiol Heart Vasc. .

Abstract

Background: Non-sustained ventricular tachycardia (NSVT) can occur asymptomatically and can be incidentally detected in the internal records of pacemakers (PM). The clinical value of NSVT in the population of PM patients is still uncertain.Our aim was to assess the prevalence of NSVT detected by remote PM control, to describe the clinical and demographic characteristics of patients with NSVT, and to assess the prognostic significance of NSVT in terms of both overall and cardiovascular mortality.

Methods: Consecutive patients followed with PM remote interrogations from September 2010 to December 2015 were included. The transmissions pertaining to the first 12 months of remote control were analysed and the patients were divided by those presenting NSVT and those without NSVT. The two groups were compared in terms of total mortality and cardiovascular mortality based on the administrative data provided by the regional administration of the Italian National Health System.

Results: The prevalence of NSVT in 408 patients (62% males, mean age 75.6; SD 10.6 years old) was 21% in a year. During a mean follow-up duration of 44 months, NSVT did not emerge as independently associated with overall mortality, but was associated with cardiovascular mortality in a competing risk regression model with older age, male gender, diabetes, chronic renal insufficiency, ischemic cardiomyopathy and chronic obstructive pulmonary disease.

Conclusions: We show that NSVT episodes recorded by remote control in a PM population are independently associated with cardiovascular mortality with possible implications for risk stratification and therapeutic options.

Keywords: Cardiovascular mortality; Non-sustained ventricular tachycardia; Pacemaker; Remote interrogation.

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Figures

Fig. 1
Fig. 1
Cumulative Incidence Functions for cardiovascular (red) and non-cardiovascular (blue) death in the group with Non-Sustained Ventricular Tachycardia (NSVT) - on the left – and without NSVT during the first year of follow-up – on the right.
See this image and copyright information in PMC

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