Loneliness in older adults is associated with functional decline, depression and even death. Given the prevalence of loneliness, the aim of this study was to examine the association between loneliness and cardiac biomarkers in older people that attend to cardiology consultation. The results showed that loneliness was more prevalent in women than in men, and it was associated with marital status too. ECG recording were analyzed and QT interval and T-wave length showed higher values in people suffering from loneliness, as well as higher cardiac frequency, where the presence of meaning in life be a protective factor. Studies with a larger sample size are needed, but these results appear to show a relationship between biomarkers and mental state.
Persistent atrial fibrillation ablation has a high recurrence rate. In this work, we performed an analysis of bipolar intracavitary signals obtained with a conventional 24-pole diagnostic catheter (Woven Orbiter) placed in the right atrium and coronary sinus in a cohort of patients with persistent atrial fibrillation undergoing ablation to detect features predictive of acute procedural success (conversion to sinus rhythm during ablation) and the occurrence of recurrences. The goal is to arrive at a quantitative description of the degree of randomness of the atrial response in atrial fibrillation and to demonstrate the presence of hidden periodic components. This was done by the determination of the autocorrelation function. Results showed that higher correlation in relative maximum peaks, and a lower dominant atrial frequency (greater distance between relative amplitude maxima) may be associated with a greater likelihood of achieving reversion to sinus rhythm and lower probability of recurrences. A larger study is needed to draw conclusions.
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