Aim. To evaluate basic clinicopathologicalcharacteristics of patients with atrial fibrillationand pharmacological anamnesis at the time of cardioembolicstroke.Material and Methods. Study included 99 patientswith atrial fibrillation admitted to SeredavinSamara Regional Clinical Hospital due to cardioembolicstroke. The follow-up duration was 1year.Results. The average age of the patients was69.1 ± 8.7 years. Patients with atrial fibrillationand acute cardioembolic stroke were characterizedby multimorbidity. Arterial hypertension, chronickidney disease, and diabetes mellitus were diagnosedin 96/99 (97.0%), 60/99 (60.6%), and 22/99(22.2%) patients, respectively. Average risk scoreaccording to the CHA2DS2-VASc scale before admissionwas 4.51 ± 1.2 points; therefore, 96 patientshad indications for anticoagulant therapy (≥2 points on the CHA2DS2-VASc scale). However,adequate prevention of thromboembolic complicationsbefore admission was carried out only in16/99 (16.2%) patients.Conclusion. These results demonstrate a lowquality of outpatient care in patients with atrialfibrillation. Most likely, this can be explained bythe lack of awareness about the risks of potentialcomplications and low compliance.
The circadian and stress-realizing systems are interconnected, and the balance of their interaction determines the state of human health. The objective of this study was to investigate the modulating effect of activating the circadian system on heart rate variability in female medical students with high anxiety while performing a cognitive task. After 20 min of adequate stimulation of circadian photoreceptors with a monochromatic blue light, the cognitive task performance resulted in a decrease in sympathetic impact. During the session of monochromatic blue light exposure, a trend of increasing heart rate variability was observed in a state of relative rest (especially in the first 5 min). A comparative analysis of the parameters of the letter cancellation test before and after light exposure revealed a statistically significant increase in the indexes reflecting mental productivity, work accuracy, and concentration of attention. The results suggest an essential physiological role of the human circadian system in modulating the autonomic and psycho-emotional conditions, as well as cognitive functions of individuals with high anxiety. Our findings indicate the possibility of quickly correcting the balance in human systemic regulatory mechanisms using the activation of retinal circadian photoreceptors by blue light.
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