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      Efecto agudo del consumo de yerba mate (Ilex paraguariensis) sobre el ritmo cardíaco en pacientes derivados para estudio Holter Translated title: Acute effect of yerba mate (Ilex paraguariensis) consumption on heart rhythm in patients referred for Holter study

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          Abstract

          Resumen Introducción: El consumo de yerba mate (YM) (Ilex paraguariensis) es común en Sudamérica y se extiende a todo el mundo. Contiene muchas sustancias bioactivas que pueden ser beneficiosas. También existe la opinión de que puede tener efectos nocivos sobre el ritmo cardíaco, pero no encontramos investigaciones al respecto. Objetivo: Nuestro objetivo fue evaluar el efecto agudo de YM sobre el ritmo, en pacientes enviados para realizar un Holter. Método: Realizamos un estudio clínico seudoexperimental, de tipo antes y después. Tomamos 50 pacientes consumidores habituales de YM y se les realizó un Holter tomando YM y otro luego de 24 sin consumir. También se controló el uso de otros productos que pudieran interferir. Resultados: El 52% fueron mujeres y la edad, de 55 ± 15 años. El 78% tenía al menos un factor de riesgo vascular, el 44% cardiopatía estructural y el 90% tomaba medicación cardiovascular. La frecuencia cardíaca (FC) con y sin YM fue similar. Solo la FC mínima horaria fue menor tomando YM (61 ± 10 vs. 63 ± 9, p = 0.021). No hubo diferencia significativa en la incidencia de arritmias sostenidas, no sostenidas ni en la extrasistolia ventricular. El total de extrasístoles supraventriculares fue mayor sin YM (952 ± 3,538 vs. 1,294 ± 5,201, p = 0.014) y la cantidad máxima horaria también (86 ± 302 vs. 107 ± 360, p = 0.032). No hubo diferencia en la variabilidad de la FC. Conclusiones: En pacientes cardiológicos tomadores de YM, su consumo de la forma habitual no se asoció con cambios importantes de la FC ni con un aumento en la incidencia de arritmias. Hubo menos actividad ectópica supraventricular.

          Translated abstract

          Abstract Introduction: The consumption of yerba mate (YM) (Ilex paraguariensis) is common in South America and is now used all over the world. It contains many bioactive substances that can be beneficial. There is also the opinion that it may have harmful effects on heart rhythm, but no studies have been found on this. Objective: The aim of this study was to evaluate the acute effect of YM on heart rhythm in patients referred for a Holter study. Method: A before and after pseudo-experimental clinical study was conducted by performing a Holter on 50 habitual users of YM, and another one after 24 without YM consumption. The use of other products that could interfere was also controlled. Results: The mean age of the subjects was 55 ± 15 years, and 52% were women. At least one vascular risk factor was found in 78%, with 44% structural heart disease, and 90% taking cardio- vascular medication. The heart rate (HR) with and without YM was similar. Only the minimum hourly HR was lower when taking YM (61 ± 10 vs. 63 ± 9, P = .021). There was no significant diffe- rence in the incidence of sustained or non-sustained arrhythmias, or in ventricular extrasystoles. The total number of supra-ventricular premature beats was higher without YM (952 ± 3,538 vs. 1,294 ± 5,201, P = .014) and also the maximum hourly (86 ± 302 vs. 107 ± 360, P = .032). There was no difference in HR variability. Conclusions: In cardiology patients, usual users of YM, habitual consumption was not associated with significant changes in HR or an increase in the incidence of arrhythmias. There was less ectopic supraventricular activity.

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          Association of coffee drinking with total and cause-specific mortality.

          Coffee is one of the most widely consumed beverages, but the association between coffee consumption and the risk of death remains unclear. We examined the association of coffee drinking with subsequent total and cause-specific mortality among 229,119 men and 173,141 women in the National Institutes of Health-AARP Diet and Health Study who were 50 to 71 years of age at baseline. Participants with cancer, heart disease, and stroke were excluded. Coffee consumption was assessed once at baseline. During 5,148,760 person-years of follow-up between 1995 and 2008, a total of 33,731 men and 18,784 women died. In age-adjusted models, the risk of death was increased among coffee drinkers. However, coffee drinkers were also more likely to smoke, and, after adjustment for tobacco-smoking status and other potential confounders, there was a significant inverse association between coffee consumption and mortality. Adjusted hazard ratios for death among men who drank coffee as compared with those who did not were as follows: 0.99 (95% confidence interval [CI], 0.95 to 1.04) for drinking less than 1 cup per day, 0.94 (95% CI, 0.90 to 0.99) for 1 cup, 0.90 (95% CI, 0.86 to 0.93) for 2 or 3 cups, 0.88 (95% CI, 0.84 to 0.93) for 4 or 5 cups, and 0.90 (95% CI, 0.85 to 0.96) for 6 or more cups of coffee per day (P<0.001 for trend); the respective hazard ratios among women were 1.01 (95% CI, 0.96 to 1.07), 0.95 (95% CI, 0.90 to 1.01), 0.87 (95% CI, 0.83 to 0.92), 0.84 (95% CI, 0.79 to 0.90), and 0.85 (95% CI, 0.78 to 0.93) (P<0.001 for trend). Inverse associations were observed for deaths due to heart disease, respiratory disease, stroke, injuries and accidents, diabetes, and infections, but not for deaths due to cancer. Results were similar in subgroups, including persons who had never smoked and persons who reported very good to excellent health at baseline. In this large prospective study, coffee consumption was inversely associated with total and cause-specific mortality. Whether this was a causal or associational finding cannot be determined from our data. (Funded by the Intramural Research Program of the National Institutes of Health, National Cancer Institute, Division of Cancer Epidemiology and Genetics.).
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            Effects of habitual coffee consumption on cardiometabolic disease, cardiovascular health, and all-cause mortality.

            Coffee, after water, is the most widely consumed beverage in the United States, and is the principal source of caffeine intake among adults. The biological effects of coffee may be substantial and are not limited to the actions of caffeine. Coffee is a complex beverage containing hundreds of biologically active compounds, and the health effects of chronic coffee intake are wide ranging. From a cardiovascular (CV) standpoint, coffee consumption may reduce the risk of type 2 diabetes mellitus and hypertension, as well as other conditions associated with CV risk such as obesity and depression; but it may adversely affect lipid profiles depending on how the beverage is prepared. Regardless, a growing body of data suggests that habitual coffee consumption is neutral to beneficial regarding the risks of a variety of adverse CV outcomes including coronary heart disease, congestive heart failure, arrhythmias, and stroke. Moreover, large epidemiological studies suggest that regular coffee drinkers have reduced risks of mortality, both CV and all-cause. The potential benefits also include protection against neurodegenerative diseases, improved asthma control, and lower risk of select gastrointestinal diseases. A daily intake of ∼2 to 3 cups of coffee appears to be safe and is associated with neutral to beneficial effects for most of the studied health outcomes. However, most of the data on coffee's health effects are based on observational data, with very few randomized, controlled studies, and association does not prove causation. Additionally, the possible advantages of regular coffee consumption have to be weighed against potential risks (which are mostly related to its high caffeine content) including anxiety, insomnia, tremulousness, and palpitations, as well as bone loss and possibly increased risk of fractures. Copyright © 2013 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.
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              Caffeine intake and atrial fibrillation incidence: dose response meta-analysis of prospective cohort studies.

              The association between habitual caffeine intake with incident atrial fibrillation (AF) was unknown. We conducted a meta-analysis to investigate the association between chronic exposure of caffeine and the risk of AF and to evaluate the potential dose-response relation.
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                Author and article information

                Journal
                acm
                Archivos de cardiología de México
                Arch. Cardiol. Méx.
                Permanyer Publications (Ciudad de México, Ciudad de México, Mexico )
                1405-9940
                1665-1731
                2018
                : 88
                : 5
                : 468-473
                Affiliations
                [2] Montevideo orgnameHospital Central de las Fuerzas Armadas, orgdiv1Servicio de Cardiología Uruguay
                [1] Montevideo orgnameUniversidad de la República orgdiv1Facultad de Medicina Uruguay
                Article
                S1405-99402018000500468 S1405-9940(18)08800500468
                10.1016/j.acmx.2018.05.004
                c9cf42ee-f29e-458f-bb25-2c2998b629d3

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 06 March 2018
                : 01 May 2018
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 20, Pages: 6
                Product

                SciELO Mexico

                Categories
                Investigación clínica

                Ilex paraguariensis,Yerba mate,Arritmias,Uruguay,Arrhythmias,Extrasístoles supraventriculares,Supraventricular extrasystoles

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