Cognitive functions in women with ischemic heart disease complicated by bradyarrythias at the initial, early and remote periods after implantations of a permanent pacemaker
The aim of the investigation. To assess memory, attention, cognition and neurodynamics indicators in women with IHD complicated by bradyarrythmias, necessitating implantation of a permanent pacemaker at the initial, early and remote periods after its implantation. Design and methods. We examined 60 women with IHD out of which 41 (the main group) had rhythm and cardiac conductivity disorders in the form of steady bradycardia with clinical manifestations of syncope, requiring permanent pacemaker implantation. Mean age 65,5 ± 5,8 years old and 19 females with IHD with sinus rhythm ( the control group), mean age 62,6 ± 5,6. With the help of psycho physiological apparatus «Status PF» we conducted an assessment of visual and auditory memory, memory volume, cognition and neurodynamics in the initial, early and remote periods after implantation of a permanent pacemaker. Results. We revealed that women with IHD complicated by bradycardia showed reliably lower indexes of memory, attention, cognition and aerodynamics and higher levels of personal and situational anxiety, compared to the control group. In the early period (5-7 days) after a permanent pacemaker implantation a significant improvement of cognitive functions occurred that may be explained by anxiety decrease. In the remote period (30-40 days) a reliable deterioration of cognitive functions was observed due to growing of personal and situational anxiety as manifestation of «nervousness» concerning «reliability» of a new device. In the remote period (150-170 days) a reliable improvement of cognitive functions in reference to both initial and remote periods took place and it may be explained by anxiety level diminishing. Conclusion. Cognitive functions' assessment can be used as an indicator of a permanent pacemaker efficacy.