Journal of personalized medicine · 2021
Improvement of Cognitive Function and Interleukin 1 Beta Serum Concentrations Following Cardiac Pacemaker Implantation in Patients with Symptomatic Bradycardia.
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Martis Alexandru, Gusetu Gabriel, Cismaru Gabriel, Zdrenghea Dumitru, Leucuta Daniel-Corneliu, Pop Dana
Аннотация
BACKGROUND AND AIM: Bradyarrhythmias cause a low cerebral blood flow with secondary neuronal ischemia and cognitive dysfunction. This study aims to assess the effect of cardiac pacemaker implantation (PI) on the cognitive function and inflammatory markers (TNF alpha, IL1β).
MATERIAL AND METHOD: We conducted a prospective observational study on a number of 31 patients with symptomatic bradyarrhythmias. We performed the cognitive function assessment by two tests (Mini-Mental State Examination and Trail Making Test A), cardiac output assessment (echocardiographic), and determination of IL 1β and TNF alpha serum concentrations before pacemaker implantation and after an average period of 42 days from pacemaker implantation.
RESULTS: After pacemaker implantation we observed an increase in the cardiac index by 0.71 L/min/m2 (p < 0.001) and a better scoring in cognitive performance; the mean MMSE score increased by two points (p < 0.001), and Trail Making Test A had an improvement of 16 s (p < 0.001). Regarding the inflammatory markers, a significant decrease in IL-1β with 8.6 pg/mL (p = 0.049) after pacemaker implantation was observed. Additionally, we found statistically significant correlations between IL1β and TNF alpha (positive correlation, p = 0.005), between the MMSE and cardiac index (p < 0.001), between the Trail Making Test and cardiac index (p = 0.001), and between the MMSE and Trail Making Test (p = 0.003).
CONCLUSIONS: Our findings suggest that cardiac pacemaker implantation was associated with improved cognitive function-possibly related to an increased cardiac output and with adecreased serum IL1β concentration in subjects with symptomatic bradycardia.
MATERIAL AND METHOD: We conducted a prospective observational study on a number of 31 patients with symptomatic bradyarrhythmias. We performed the cognitive function assessment by two tests (Mini-Mental State Examination and Trail Making Test A), cardiac output assessment (echocardiographic), and determination of IL 1β and TNF alpha serum concentrations before pacemaker implantation and after an average period of 42 days from pacemaker implantation.
RESULTS: After pacemaker implantation we observed an increase in the cardiac index by 0.71 L/min/m2 (p < 0.001) and a better scoring in cognitive performance; the mean MMSE score increased by two points (p < 0.001), and Trail Making Test A had an improvement of 16 s (p < 0.001). Regarding the inflammatory markers, a significant decrease in IL-1β with 8.6 pg/mL (p = 0.049) after pacemaker implantation was observed. Additionally, we found statistically significant correlations between IL1β and TNF alpha (positive correlation, p = 0.005), between the MMSE and cardiac index (p < 0.001), between the Trail Making Test and cardiac index (p = 0.001), and between the MMSE and Trail Making Test (p = 0.003).
CONCLUSIONS: Our findings suggest that cardiac pacemaker implantation was associated with improved cognitive function-possibly related to an increased cardiac output and with adecreased serum IL1β concentration in subjects with symptomatic bradycardia.