Cargando…

Hemodynamic deterioration precedes onset of ventricular tachyarrhythmia after Heartmate II implantation

BACKGROUND: Early postoperative ventricular tachyarrhythmia (PoVT) after left ventricular assist device (LVAD) implantation are common and associated with higher mortality-rates. At present, there is no data on initiation of these PoVT and the role of alterations in cardiac hemodynamics. CASE PRESEN...

Descripción completa

Detalles Bibliográficos
Autores principales: Yaksh, Ameeta, Kik, Charles, Knops, Paul, Zwiers, Korinne, van Ettinger, Maarten J. B., Manintveld, Olivier C., de Wijs, Marcel C. J., van der Kemp, Peter, Bogers, Ad J. J. C., de Groot, Natasja M. S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4938959/
https://www.ncbi.nlm.nih.gov/pubmed/27391034
http://dx.doi.org/10.1186/s13019-016-0493-0
Descripción
Sumario:BACKGROUND: Early postoperative ventricular tachyarrhythmia (PoVT) after left ventricular assist device (LVAD) implantation are common and associated with higher mortality-rates. At present, there is no data on initiation of these PoVT and the role of alterations in cardiac hemodynamics. CASE PRESENTATION: A LVAD was implanted in a patient with end-stage heart failure due to a ischemic cardiomyopathy. Alterations in cardiac rhythm and hemodynamics preceding PoVT-episodes during the first five postoperative days were examined by using continuous recordings of cardiac rhythm and various hemodynamic parameters. All PoVT (N=120) were monomorphic, most often preceded by short-long-short-sequences or regular SR and initiated by ventricular runs. Prior to PoVT, mean arterial pressure decreased; heart rate and ST-segments deviations increased. CONCLUSIONS: PoVT are caused by different underlying electrophysiological mechanisms. Yet, they are all monomorphic and preceded by hemodynamic deterioration due to myocardial ischemia.