Novel approaches to the assessment of cardiorespiratory readiness of patients after coronary artery bypass surgery aimed to the efficient cardiac rehabilitation performance

Abstract

Aim. To develop novel strategies of patients selection and risk stratification after coronary artery bypass surgery before starting aerobic cardiorespiratory training programs. Material and methods. One hundred thirty seven patients 4 weeks after coronary artery bypass surgery were included in our study. RARE scale (risk of activity related events), ergospirometric test, FIT treadmill score and certain laboratory parameters like hemoglobin and alaninaminotransferase were used. Results. Logical interdependence is revealed between certain indicators of cardiorespiratory capacity and risk of developing unfavorable events due to aerobic training activities. Comprehensive protocol is developed based on multifactorial regression analysis, which allows to differentiate patients into low and high class of readiness to physical activities, including aerobic cardiorespiratory training programs. Conclusion. The protocol includes following variables METs, RARE scale, FIT treadmill score, left ventricular ejection fraction, hemoglobin and alaninaminotransferase levels. It is very userfriendly, easy, practical and efficient.

Keywords

• coronary artery bypass surgery
• rare scale
• hemoglobin
• alaninaminotransferaze
• physical readiness
• cardiorespiratory readiness
• heart rate
• aerobic cardiorespiratory training
• risk stratification protocol