Browsing by Author "Pinos Vasquez, Javier Fernando"

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    Brugada pattern as part of the electrocardiographic abnormalities in hyperkalemia
    (2022) Willes, Jessica
    A 78-year-old man presented to the emergency department with a 10-day history of diarrhea and presyncope. His electrocardiogram showed a type-1 Brugada pattern but also a first-degree atrioventricular block, right bundle branch block, and peaked and symmetrical hyperacute T waves. A blood test revealed a potassium level of 9.3 mEq/L. After hemodialysis with normalization of serum potassium, the electrocardiographic abnormalities disappeared. An ajmaline challenge excluded the possibility of Brugada syndrome.
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    Electrophysiological study as a predictor of mortality in unexplained syncope
    (2023) Pinos Vasquez, Javier Fernando
    Background: Electrophysiological study can help in the diagnosis of arrhythmic syncope. According to the electrophysiological study finding, the prognosis of patients with syncope is still a matter of study. Objective: The aim of this study was to assess the survival of patients undergoing electrophysiological study according to their findings and to identify clinical and electrophysiological independent predictors of all-cause mortality. Methods: A retrospective cohort study included patients with syncope who underwent electrophysiological study from 2009 to 2018. A Cox logistic regression analysis was performed to identify independent prognostic factors for all-cause mortality. Results: We included 383 patients in our study. During a mean follow-up of 59 months, 84 (21.9%) patients died. The split His group had the worst survival compared with the control group, followed by sustained ventricular tachycardia and HV interval ≥ 70 ms, respectively (p =.001; p <.001; p =.03). The supraventricular tachycardia group showed no differences compared with the control group (p =.87). In the multivariate analysis, independent predictors of all-cause mortality were Age (OR 1.06; 1.03–1.07; p [removed]